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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /mozglue/tests/TestBaseProfiler.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'mozglue/tests/TestBaseProfiler.cpp')
-rw-r--r--mozglue/tests/TestBaseProfiler.cpp5732
1 files changed, 5732 insertions, 0 deletions
diff --git a/mozglue/tests/TestBaseProfiler.cpp b/mozglue/tests/TestBaseProfiler.cpp
new file mode 100644
index 0000000000..03b2076ebc
--- /dev/null
+++ b/mozglue/tests/TestBaseProfiler.cpp
@@ -0,0 +1,5732 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "BaseProfiler.h"
+
+#include "mozilla/Attributes.h"
+#include "mozilla/BaseAndGeckoProfilerDetail.h"
+#include "mozilla/BaseProfileJSONWriter.h"
+#include "mozilla/BaseProfilerDetail.h"
+#include "mozilla/FailureLatch.h"
+#include "mozilla/FloatingPoint.h"
+#include "mozilla/NotNull.h"
+#include "mozilla/ProgressLogger.h"
+#include "mozilla/ProportionValue.h"
+
+#ifdef MOZ_GECKO_PROFILER
+# include "mozilla/BaseProfilerMarkerTypes.h"
+# include "mozilla/BlocksRingBuffer.h"
+# include "mozilla/leb128iterator.h"
+# include "mozilla/ModuloBuffer.h"
+# include "mozilla/mozalloc.h"
+# include "mozilla/PowerOfTwo.h"
+# include "mozilla/ProfileBufferChunk.h"
+# include "mozilla/ProfileBufferChunkManagerSingle.h"
+# include "mozilla/ProfileBufferChunkManagerWithLocalLimit.h"
+# include "mozilla/ProfileBufferControlledChunkManager.h"
+# include "mozilla/ProfileChunkedBuffer.h"
+# include "mozilla/Vector.h"
+#endif // MOZ_GECKO_PROFILER
+
+#if defined(_MSC_VER) || defined(__MINGW32__)
+# include <windows.h>
+# include <mmsystem.h>
+# include <process.h>
+#else
+# include <errno.h>
+# include <time.h>
+#endif
+
+#include <algorithm>
+#include <atomic>
+#include <iostream>
+#include <random>
+#include <thread>
+#include <type_traits>
+#include <utility>
+
+void TestFailureLatch() {
+ printf("TestFailureLatch...\n");
+
+ // Test infallible latch.
+ {
+ mozilla::FailureLatchInfallibleSource& infallibleLatch =
+ mozilla::FailureLatchInfallibleSource::Singleton();
+
+ MOZ_RELEASE_ASSERT(!infallibleLatch.Fallible());
+ MOZ_RELEASE_ASSERT(!infallibleLatch.Failed());
+ MOZ_RELEASE_ASSERT(!infallibleLatch.GetFailure());
+ MOZ_RELEASE_ASSERT(&infallibleLatch.SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+ MOZ_RELEASE_ASSERT(&std::as_const(infallibleLatch).SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+ }
+
+ // Test failure latch basic functions.
+ {
+ mozilla::FailureLatchSource failureLatch;
+
+ MOZ_RELEASE_ASSERT(failureLatch.Fallible());
+ MOZ_RELEASE_ASSERT(!failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(!failureLatch.GetFailure());
+ MOZ_RELEASE_ASSERT(&failureLatch.SourceFailureLatch() == &failureLatch);
+ MOZ_RELEASE_ASSERT(&std::as_const(failureLatch).SourceFailureLatch() ==
+ &failureLatch);
+
+ failureLatch.SetFailure("error");
+
+ MOZ_RELEASE_ASSERT(failureLatch.Fallible());
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(failureLatch.GetFailure());
+ MOZ_RELEASE_ASSERT(strcmp(failureLatch.GetFailure(), "error") == 0);
+
+ failureLatch.SetFailure("later error");
+
+ MOZ_RELEASE_ASSERT(failureLatch.Fallible());
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(failureLatch.GetFailure());
+ MOZ_RELEASE_ASSERT(strcmp(failureLatch.GetFailure(), "error") == 0);
+ }
+
+ // Test SetFailureFrom.
+ {
+ mozilla::FailureLatchSource failureLatch;
+
+ MOZ_RELEASE_ASSERT(!failureLatch.Failed());
+ failureLatch.SetFailureFrom(failureLatch);
+ MOZ_RELEASE_ASSERT(!failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(!failureLatch.GetFailure());
+
+ // SetFailureFrom with no error.
+ {
+ mozilla::FailureLatchSource failureLatchInnerOk;
+ MOZ_RELEASE_ASSERT(!failureLatchInnerOk.Failed());
+ MOZ_RELEASE_ASSERT(!failureLatchInnerOk.GetFailure());
+
+ MOZ_RELEASE_ASSERT(!failureLatch.Failed());
+ failureLatch.SetFailureFrom(failureLatchInnerOk);
+ MOZ_RELEASE_ASSERT(!failureLatch.Failed());
+
+ MOZ_RELEASE_ASSERT(!failureLatchInnerOk.Failed());
+ MOZ_RELEASE_ASSERT(!failureLatchInnerOk.GetFailure());
+ }
+ MOZ_RELEASE_ASSERT(!failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(!failureLatch.GetFailure());
+
+ // SetFailureFrom with error.
+ {
+ mozilla::FailureLatchSource failureLatchInnerError;
+ MOZ_RELEASE_ASSERT(!failureLatchInnerError.Failed());
+ MOZ_RELEASE_ASSERT(!failureLatchInnerError.GetFailure());
+
+ failureLatchInnerError.SetFailure("inner error");
+ MOZ_RELEASE_ASSERT(failureLatchInnerError.Failed());
+ MOZ_RELEASE_ASSERT(
+ strcmp(failureLatchInnerError.GetFailure(), "inner error") == 0);
+
+ MOZ_RELEASE_ASSERT(!failureLatch.Failed());
+ failureLatch.SetFailureFrom(failureLatchInnerError);
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+
+ MOZ_RELEASE_ASSERT(failureLatchInnerError.Failed());
+ MOZ_RELEASE_ASSERT(
+ strcmp(failureLatchInnerError.GetFailure(), "inner error") == 0);
+ }
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(failureLatch.GetFailure(), "inner error") == 0);
+
+ failureLatch.SetFailureFrom(failureLatch);
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(failureLatch.GetFailure(), "inner error") == 0);
+
+ // SetFailureFrom with error again, ignored.
+ {
+ mozilla::FailureLatchSource failureLatchInnerError;
+ failureLatchInnerError.SetFailure("later inner error");
+ MOZ_RELEASE_ASSERT(failureLatchInnerError.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(failureLatchInnerError.GetFailure(),
+ "later inner error") == 0);
+
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+ failureLatch.SetFailureFrom(failureLatchInnerError);
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+
+ MOZ_RELEASE_ASSERT(failureLatchInnerError.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(failureLatchInnerError.GetFailure(),
+ "later inner error") == 0);
+ }
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(failureLatch.GetFailure(), "inner error") == 0);
+ }
+
+ // Test FAILURELATCH_IMPL_PROXY
+ {
+ class Proxy final : public mozilla::FailureLatch {
+ public:
+ explicit Proxy(mozilla::FailureLatch& aFailureLatch)
+ : mFailureLatch(WrapNotNull(&aFailureLatch)) {}
+
+ void Set(mozilla::FailureLatch& aFailureLatch) {
+ mFailureLatch = WrapNotNull(&aFailureLatch);
+ }
+
+ FAILURELATCH_IMPL_PROXY(*mFailureLatch)
+
+ private:
+ mozilla::NotNull<mozilla::FailureLatch*> mFailureLatch;
+ };
+
+ Proxy proxy{mozilla::FailureLatchInfallibleSource::Singleton()};
+
+ MOZ_RELEASE_ASSERT(!proxy.Fallible());
+ MOZ_RELEASE_ASSERT(!proxy.Failed());
+ MOZ_RELEASE_ASSERT(!proxy.GetFailure());
+ MOZ_RELEASE_ASSERT(&proxy.SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+ MOZ_RELEASE_ASSERT(&std::as_const(proxy).SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+
+ // Error from proxy.
+ {
+ mozilla::FailureLatchSource failureLatch;
+ proxy.Set(failureLatch);
+ MOZ_RELEASE_ASSERT(proxy.Fallible());
+ MOZ_RELEASE_ASSERT(!proxy.Failed());
+ MOZ_RELEASE_ASSERT(!proxy.GetFailure());
+ MOZ_RELEASE_ASSERT(&proxy.SourceFailureLatch() == &failureLatch);
+ MOZ_RELEASE_ASSERT(&std::as_const(proxy).SourceFailureLatch() ==
+ &failureLatch);
+
+ proxy.SetFailure("error");
+ MOZ_RELEASE_ASSERT(proxy.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(proxy.GetFailure(), "error") == 0);
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(failureLatch.GetFailure(), "error") == 0);
+
+ // Don't forget to stop pointing at soon-to-be-destroyed object.
+ proxy.Set(mozilla::FailureLatchInfallibleSource::Singleton());
+ }
+
+ // Error from proxy's origin.
+ {
+ mozilla::FailureLatchSource failureLatch;
+ proxy.Set(failureLatch);
+ MOZ_RELEASE_ASSERT(proxy.Fallible());
+ MOZ_RELEASE_ASSERT(!proxy.Failed());
+ MOZ_RELEASE_ASSERT(!proxy.GetFailure());
+ MOZ_RELEASE_ASSERT(&proxy.SourceFailureLatch() == &failureLatch);
+ MOZ_RELEASE_ASSERT(&std::as_const(proxy).SourceFailureLatch() ==
+ &failureLatch);
+
+ failureLatch.SetFailure("error");
+ MOZ_RELEASE_ASSERT(proxy.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(proxy.GetFailure(), "error") == 0);
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(failureLatch.GetFailure(), "error") == 0);
+
+ // Don't forget to stop pointing at soon-to-be-destroyed object.
+ proxy.Set(mozilla::FailureLatchInfallibleSource::Singleton());
+ }
+
+ MOZ_RELEASE_ASSERT(!proxy.Fallible());
+ MOZ_RELEASE_ASSERT(!proxy.Failed());
+ MOZ_RELEASE_ASSERT(!proxy.GetFailure());
+ MOZ_RELEASE_ASSERT(&proxy.SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+ MOZ_RELEASE_ASSERT(&std::as_const(proxy).SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+ }
+
+ // Test FAILURELATCH_IMPL_PROXY_OR_INFALLIBLE
+ {
+ class ProxyOrNull final : public mozilla::FailureLatch {
+ public:
+ ProxyOrNull() = default;
+
+ void Set(mozilla::FailureLatch* aFailureLatchOrNull) {
+ mFailureLatchOrNull = aFailureLatchOrNull;
+ }
+
+ FAILURELATCH_IMPL_PROXY_OR_INFALLIBLE(mFailureLatchOrNull, ProxyOrNull)
+
+ private:
+ mozilla::FailureLatch* mFailureLatchOrNull = nullptr;
+ };
+
+ ProxyOrNull proxy;
+
+ MOZ_RELEASE_ASSERT(!proxy.Fallible());
+ MOZ_RELEASE_ASSERT(!proxy.Failed());
+ MOZ_RELEASE_ASSERT(!proxy.GetFailure());
+ MOZ_RELEASE_ASSERT(&proxy.SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+ MOZ_RELEASE_ASSERT(&std::as_const(proxy).SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+
+ // Error from proxy.
+ {
+ mozilla::FailureLatchSource failureLatch;
+ proxy.Set(&failureLatch);
+ MOZ_RELEASE_ASSERT(proxy.Fallible());
+ MOZ_RELEASE_ASSERT(!proxy.Failed());
+ MOZ_RELEASE_ASSERT(!proxy.GetFailure());
+ MOZ_RELEASE_ASSERT(&proxy.SourceFailureLatch() == &failureLatch);
+ MOZ_RELEASE_ASSERT(&std::as_const(proxy).SourceFailureLatch() ==
+ &failureLatch);
+
+ proxy.SetFailure("error");
+ MOZ_RELEASE_ASSERT(proxy.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(proxy.GetFailure(), "error") == 0);
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(failureLatch.GetFailure(), "error") == 0);
+
+ // Don't forget to stop pointing at soon-to-be-destroyed object.
+ proxy.Set(nullptr);
+ }
+
+ // Error from proxy's origin.
+ {
+ mozilla::FailureLatchSource failureLatch;
+ proxy.Set(&failureLatch);
+ MOZ_RELEASE_ASSERT(proxy.Fallible());
+ MOZ_RELEASE_ASSERT(!proxy.Failed());
+ MOZ_RELEASE_ASSERT(!proxy.GetFailure());
+ MOZ_RELEASE_ASSERT(&proxy.SourceFailureLatch() == &failureLatch);
+ MOZ_RELEASE_ASSERT(&std::as_const(proxy).SourceFailureLatch() ==
+ &failureLatch);
+
+ failureLatch.SetFailure("error");
+ MOZ_RELEASE_ASSERT(proxy.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(proxy.GetFailure(), "error") == 0);
+ MOZ_RELEASE_ASSERT(failureLatch.Failed());
+ MOZ_RELEASE_ASSERT(strcmp(failureLatch.GetFailure(), "error") == 0);
+
+ // Don't forget to stop pointing at soon-to-be-destroyed object.
+ proxy.Set(nullptr);
+ }
+
+ MOZ_RELEASE_ASSERT(!proxy.Fallible());
+ MOZ_RELEASE_ASSERT(!proxy.Failed());
+ MOZ_RELEASE_ASSERT(!proxy.GetFailure());
+ MOZ_RELEASE_ASSERT(&proxy.SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+ MOZ_RELEASE_ASSERT(&std::as_const(proxy).SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+ }
+
+ printf("TestFailureLatch done\n");
+}
+
+void TestProfilerUtils() {
+ printf("TestProfilerUtils...\n");
+
+ {
+ using mozilla::baseprofiler::BaseProfilerProcessId;
+ using Number = BaseProfilerProcessId::NumberType;
+ static constexpr Number scMaxNumber = std::numeric_limits<Number>::max();
+
+ static_assert(
+ BaseProfilerProcessId{}.ToNumber() == 0,
+ "These tests assume that the unspecified process id number is 0; "
+ "if this fails, please update these tests accordingly");
+
+ static_assert(!BaseProfilerProcessId{}.IsSpecified());
+ static_assert(!BaseProfilerProcessId::FromNumber(0).IsSpecified());
+ static_assert(BaseProfilerProcessId::FromNumber(1).IsSpecified());
+ static_assert(BaseProfilerProcessId::FromNumber(123).IsSpecified());
+ static_assert(BaseProfilerProcessId::FromNumber(scMaxNumber).IsSpecified());
+
+ static_assert(BaseProfilerProcessId::FromNumber(Number(1)).ToNumber() ==
+ Number(1));
+ static_assert(BaseProfilerProcessId::FromNumber(Number(123)).ToNumber() ==
+ Number(123));
+ static_assert(BaseProfilerProcessId::FromNumber(scMaxNumber).ToNumber() ==
+ scMaxNumber);
+
+ static_assert(BaseProfilerProcessId{} == BaseProfilerProcessId{});
+ static_assert(BaseProfilerProcessId::FromNumber(Number(123)) ==
+ BaseProfilerProcessId::FromNumber(Number(123)));
+ static_assert(BaseProfilerProcessId{} !=
+ BaseProfilerProcessId::FromNumber(Number(123)));
+ static_assert(BaseProfilerProcessId::FromNumber(Number(123)) !=
+ BaseProfilerProcessId{});
+ static_assert(BaseProfilerProcessId::FromNumber(Number(123)) !=
+ BaseProfilerProcessId::FromNumber(scMaxNumber));
+ static_assert(BaseProfilerProcessId::FromNumber(scMaxNumber) !=
+ BaseProfilerProcessId::FromNumber(Number(123)));
+
+ // Verify trivial-copyability by memcpy'ing to&from same-size storage.
+ static_assert(std::is_trivially_copyable_v<BaseProfilerProcessId>);
+ BaseProfilerProcessId pid;
+ MOZ_RELEASE_ASSERT(!pid.IsSpecified());
+ Number pidStorage;
+ static_assert(sizeof(pidStorage) == sizeof(pid));
+ // Copy from BaseProfilerProcessId to storage. Note: We cannot assume that
+ // this is equal to what ToNumber() gives us. All we can do is verify that
+ // copying from storage back to BaseProfilerProcessId works as expected.
+ std::memcpy(&pidStorage, &pid, sizeof(pidStorage));
+ BaseProfilerProcessId pid2 = BaseProfilerProcessId::FromNumber(2);
+ MOZ_RELEASE_ASSERT(pid2.IsSpecified());
+ std::memcpy(&pid2, &pidStorage, sizeof(pid));
+ MOZ_RELEASE_ASSERT(!pid2.IsSpecified());
+
+ pid = BaseProfilerProcessId::FromNumber(123);
+ std::memcpy(&pidStorage, &pid, sizeof(pidStorage));
+ pid2 = BaseProfilerProcessId{};
+ MOZ_RELEASE_ASSERT(!pid2.IsSpecified());
+ std::memcpy(&pid2, &pidStorage, sizeof(pid));
+ MOZ_RELEASE_ASSERT(pid2.IsSpecified());
+ MOZ_RELEASE_ASSERT(pid2.ToNumber() == 123);
+
+ // No conversions to/from numbers.
+ static_assert(!std::is_constructible_v<BaseProfilerProcessId, Number>);
+ static_assert(!std::is_assignable_v<BaseProfilerProcessId, Number>);
+ static_assert(!std::is_constructible_v<Number, BaseProfilerProcessId>);
+ static_assert(!std::is_assignable_v<Number, BaseProfilerProcessId>);
+
+ static_assert(
+ std::is_same_v<
+ decltype(mozilla::baseprofiler::profiler_current_process_id()),
+ BaseProfilerProcessId>);
+ MOZ_RELEASE_ASSERT(
+ mozilla::baseprofiler::profiler_current_process_id().IsSpecified());
+ }
+
+ {
+ mozilla::baseprofiler::profiler_init_main_thread_id();
+
+ using mozilla::baseprofiler::BaseProfilerThreadId;
+ using Number = BaseProfilerThreadId::NumberType;
+ static constexpr Number scMaxNumber = std::numeric_limits<Number>::max();
+
+ static_assert(
+ BaseProfilerThreadId{}.ToNumber() == 0,
+ "These tests assume that the unspecified thread id number is 0; "
+ "if this fails, please update these tests accordingly");
+
+ static_assert(!BaseProfilerThreadId{}.IsSpecified());
+ static_assert(!BaseProfilerThreadId::FromNumber(0).IsSpecified());
+ static_assert(BaseProfilerThreadId::FromNumber(1).IsSpecified());
+ static_assert(BaseProfilerThreadId::FromNumber(123).IsSpecified());
+ static_assert(BaseProfilerThreadId::FromNumber(scMaxNumber).IsSpecified());
+
+ static_assert(BaseProfilerThreadId::FromNumber(Number(1)).ToNumber() ==
+ Number(1));
+ static_assert(BaseProfilerThreadId::FromNumber(Number(123)).ToNumber() ==
+ Number(123));
+ static_assert(BaseProfilerThreadId::FromNumber(scMaxNumber).ToNumber() ==
+ scMaxNumber);
+
+ static_assert(BaseProfilerThreadId{} == BaseProfilerThreadId{});
+ static_assert(BaseProfilerThreadId::FromNumber(Number(123)) ==
+ BaseProfilerThreadId::FromNumber(Number(123)));
+ static_assert(BaseProfilerThreadId{} !=
+ BaseProfilerThreadId::FromNumber(Number(123)));
+ static_assert(BaseProfilerThreadId::FromNumber(Number(123)) !=
+ BaseProfilerThreadId{});
+ static_assert(BaseProfilerThreadId::FromNumber(Number(123)) !=
+ BaseProfilerThreadId::FromNumber(scMaxNumber));
+ static_assert(BaseProfilerThreadId::FromNumber(scMaxNumber) !=
+ BaseProfilerThreadId::FromNumber(Number(123)));
+
+ // Verify trivial-copyability by memcpy'ing to&from same-size storage.
+ static_assert(std::is_trivially_copyable_v<BaseProfilerThreadId>);
+ BaseProfilerThreadId tid;
+ MOZ_RELEASE_ASSERT(!tid.IsSpecified());
+ Number tidStorage;
+ static_assert(sizeof(tidStorage) == sizeof(tid));
+ // Copy from BaseProfilerThreadId to storage. Note: We cannot assume that
+ // this is equal to what ToNumber() gives us. All we can do is verify that
+ // copying from storage back to BaseProfilerThreadId works as expected.
+ std::memcpy(&tidStorage, &tid, sizeof(tidStorage));
+ BaseProfilerThreadId tid2 = BaseProfilerThreadId::FromNumber(2);
+ MOZ_RELEASE_ASSERT(tid2.IsSpecified());
+ std::memcpy(&tid2, &tidStorage, sizeof(tid));
+ MOZ_RELEASE_ASSERT(!tid2.IsSpecified());
+
+ tid = BaseProfilerThreadId::FromNumber(Number(123));
+ std::memcpy(&tidStorage, &tid, sizeof(tidStorage));
+ tid2 = BaseProfilerThreadId{};
+ MOZ_RELEASE_ASSERT(!tid2.IsSpecified());
+ std::memcpy(&tid2, &tidStorage, sizeof(tid));
+ MOZ_RELEASE_ASSERT(tid2.IsSpecified());
+ MOZ_RELEASE_ASSERT(tid2.ToNumber() == Number(123));
+
+ // No conversions to/from numbers.
+ static_assert(!std::is_constructible_v<BaseProfilerThreadId, Number>);
+ static_assert(!std::is_assignable_v<BaseProfilerThreadId, Number>);
+ static_assert(!std::is_constructible_v<Number, BaseProfilerThreadId>);
+ static_assert(!std::is_assignable_v<Number, BaseProfilerThreadId>);
+
+ static_assert(std::is_same_v<
+ decltype(mozilla::baseprofiler::profiler_current_thread_id()),
+ BaseProfilerThreadId>);
+ BaseProfilerThreadId mainTestThreadId =
+ mozilla::baseprofiler::profiler_current_thread_id();
+ MOZ_RELEASE_ASSERT(mainTestThreadId.IsSpecified());
+
+ BaseProfilerThreadId mainThreadId =
+ mozilla::baseprofiler::profiler_main_thread_id();
+ MOZ_RELEASE_ASSERT(mainThreadId.IsSpecified());
+
+ MOZ_RELEASE_ASSERT(mainThreadId == mainTestThreadId,
+ "Test should run on the main thread");
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::profiler_is_main_thread());
+
+ std::thread testThread([&]() {
+ const BaseProfilerThreadId testThreadId =
+ mozilla::baseprofiler::profiler_current_thread_id();
+ MOZ_RELEASE_ASSERT(testThreadId.IsSpecified());
+ MOZ_RELEASE_ASSERT(testThreadId != mainThreadId);
+ MOZ_RELEASE_ASSERT(!mozilla::baseprofiler::profiler_is_main_thread());
+ });
+ testThread.join();
+ }
+
+ // No conversions between processes and threads.
+ static_assert(
+ !std::is_constructible_v<mozilla::baseprofiler::BaseProfilerThreadId,
+ mozilla::baseprofiler::BaseProfilerProcessId>);
+ static_assert(
+ !std::is_assignable_v<mozilla::baseprofiler::BaseProfilerThreadId,
+ mozilla::baseprofiler::BaseProfilerProcessId>);
+ static_assert(
+ !std::is_constructible_v<mozilla::baseprofiler::BaseProfilerProcessId,
+ mozilla::baseprofiler::BaseProfilerThreadId>);
+ static_assert(
+ !std::is_assignable_v<mozilla::baseprofiler::BaseProfilerProcessId,
+ mozilla::baseprofiler::BaseProfilerThreadId>);
+
+ printf("TestProfilerUtils done\n");
+}
+
+void TestBaseAndProfilerDetail() {
+ printf("TestBaseAndProfilerDetail...\n");
+
+ {
+ using mozilla::profiler::detail::FilterHasPid;
+
+ const auto pid123 =
+ mozilla::baseprofiler::BaseProfilerProcessId::FromNumber(123);
+ MOZ_RELEASE_ASSERT(FilterHasPid("pid:123", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid(" ", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("123", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("pid", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("pid:", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("pid=123", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("pid:123 ", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("pid: 123", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("pid:0123", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("pid:0000000000000000000000123", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("pid:12", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("pid:1234", pid123));
+ MOZ_RELEASE_ASSERT(!FilterHasPid("pid:0", pid123));
+
+ using PidNumber = mozilla::baseprofiler::BaseProfilerProcessId::NumberType;
+ const PidNumber maxNumber = std::numeric_limits<PidNumber>::max();
+ const auto maxPid =
+ mozilla::baseprofiler::BaseProfilerProcessId::FromNumber(maxNumber);
+ const std::string maxPidString = "pid:" + std::to_string(maxNumber);
+ MOZ_RELEASE_ASSERT(FilterHasPid(maxPidString.c_str(), maxPid));
+
+ const std::string tooBigPidString = maxPidString + "0";
+ MOZ_RELEASE_ASSERT(!FilterHasPid(tooBigPidString.c_str(), maxPid));
+ }
+
+ {
+ using mozilla::profiler::detail::FiltersExcludePid;
+ const auto pid123 =
+ mozilla::baseprofiler::BaseProfilerProcessId::FromNumber(123);
+
+ MOZ_RELEASE_ASSERT(
+ !FiltersExcludePid(mozilla::Span<const char*>{}, pid123));
+
+ {
+ const char* const filters[] = {"main"};
+ MOZ_RELEASE_ASSERT(!FiltersExcludePid(filters, pid123));
+ }
+
+ {
+ const char* const filters[] = {"main", "pid:123"};
+ MOZ_RELEASE_ASSERT(!FiltersExcludePid(filters, pid123));
+ }
+
+ {
+ const char* const filters[] = {"main", "pid:456"};
+ MOZ_RELEASE_ASSERT(!FiltersExcludePid(filters, pid123));
+ }
+
+ {
+ const char* const filters[] = {"pid:123"};
+ MOZ_RELEASE_ASSERT(!FiltersExcludePid(filters, pid123));
+ }
+
+ {
+ const char* const filters[] = {"pid:123", "pid:456"};
+ MOZ_RELEASE_ASSERT(!FiltersExcludePid(filters, pid123));
+ }
+
+ {
+ const char* const filters[] = {"pid:456", "pid:123"};
+ MOZ_RELEASE_ASSERT(!FiltersExcludePid(filters, pid123));
+ }
+
+ {
+ const char* const filters[] = {"pid:456"};
+ MOZ_RELEASE_ASSERT(FiltersExcludePid(filters, pid123));
+ }
+
+ {
+ const char* const filters[] = {"pid:456", "pid:789"};
+ MOZ_RELEASE_ASSERT(FiltersExcludePid(filters, pid123));
+ }
+ }
+
+ printf("TestBaseAndProfilerDetail done\n");
+}
+
+void TestSharedMutex() {
+ printf("TestSharedMutex...\n");
+
+ mozilla::baseprofiler::detail::BaseProfilerSharedMutex sm;
+
+ // First round of minimal tests in this thread.
+
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+
+ sm.LockExclusive();
+ MOZ_RELEASE_ASSERT(sm.IsLockedExclusiveOnCurrentThread());
+ sm.UnlockExclusive();
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+
+ sm.LockShared();
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ sm.UnlockShared();
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+
+ {
+ mozilla::baseprofiler::detail::BaseProfilerAutoLockExclusive exclusiveLock{
+ sm};
+ MOZ_RELEASE_ASSERT(sm.IsLockedExclusiveOnCurrentThread());
+ }
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+
+ {
+ mozilla::baseprofiler::detail::BaseProfilerAutoLockShared sharedLock{sm};
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ }
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+
+ // The following will run actions between two threads, to verify that
+ // exclusive and shared locks work as expected.
+
+ // These actions will happen from top to bottom.
+ // This will test all possible lock interactions.
+ enum NextAction { // State of the lock:
+ t1Starting, // (x=exclusive, s=shared, ?=blocked)
+ t2Starting, // t1 t2
+ t1LockExclusive, // x
+ t2LockExclusiveAndBlock, // x x? - Can't have two exclusives.
+ t1UnlockExclusive, // x
+ t2UnblockedAfterT1Unlock, // x
+ t1LockSharedAndBlock, // s? x - Can't have shared during excl
+ t2UnlockExclusive, // s
+ t1UnblockedAfterT2Unlock, // s
+ t2LockShared, // s s - Can have multiple shared locks
+ t1UnlockShared, // s
+ t2StillLockedShared, // s
+ t1LockExclusiveAndBlock, // x? s - Can't have excl during shared
+ t2UnlockShared, // x
+ t1UnblockedAfterT2UnlockShared, // x
+ t2CheckAfterT1Lock, // x
+ t1LastUnlockExclusive, // (unlocked)
+ done
+ };
+
+ // Each thread will repeatedly read this `nextAction`, and run actions that
+ // target it...
+ std::atomic<NextAction> nextAction{static_cast<NextAction>(0)};
+ // ... and advance to the next available action (which should usually be for
+ // the other thread).
+ auto AdvanceAction = [&nextAction]() {
+ MOZ_RELEASE_ASSERT(nextAction <= done);
+ nextAction = static_cast<NextAction>(static_cast<int>(nextAction) + 1);
+ };
+
+ std::thread t1{[&]() {
+ for (;;) {
+ switch (nextAction) {
+ case t1Starting:
+ AdvanceAction();
+ break;
+ case t1LockExclusive:
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ sm.LockExclusive();
+ MOZ_RELEASE_ASSERT(sm.IsLockedExclusiveOnCurrentThread());
+ AdvanceAction();
+ break;
+ case t1UnlockExclusive:
+ MOZ_RELEASE_ASSERT(sm.IsLockedExclusiveOnCurrentThread());
+ // Advance first, before unlocking, so that t2 sees the new state.
+ AdvanceAction();
+ sm.UnlockExclusive();
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ break;
+ case t1LockSharedAndBlock:
+ // Advance action before attempting to lock after t2's exclusive lock.
+ AdvanceAction();
+ sm.LockShared();
+ // We will only acquire the lock after t1 unlocks.
+ MOZ_RELEASE_ASSERT(nextAction == t1UnblockedAfterT2Unlock);
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ AdvanceAction();
+ break;
+ case t1UnlockShared:
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ // Advance first, before unlocking, so that t2 sees the new state.
+ AdvanceAction();
+ sm.UnlockShared();
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ break;
+ case t1LockExclusiveAndBlock:
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ // Advance action before attempting to lock after t2's shared lock.
+ AdvanceAction();
+ sm.LockExclusive();
+ // We will only acquire the lock after t2 unlocks.
+ MOZ_RELEASE_ASSERT(nextAction == t1UnblockedAfterT2UnlockShared);
+ MOZ_RELEASE_ASSERT(sm.IsLockedExclusiveOnCurrentThread());
+ AdvanceAction();
+ break;
+ case t1LastUnlockExclusive:
+ MOZ_RELEASE_ASSERT(sm.IsLockedExclusiveOnCurrentThread());
+ // Advance first, before unlocking, so that t2 sees the new state.
+ AdvanceAction();
+ sm.UnlockExclusive();
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ break;
+ case done:
+ return;
+ default:
+ // Ignore other actions intended for t2.
+ break;
+ }
+ }
+ }};
+
+ std::thread t2{[&]() {
+ for (;;) {
+ switch (nextAction) {
+ case t2Starting:
+ AdvanceAction();
+ break;
+ case t2LockExclusiveAndBlock:
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ // Advance action before attempting to lock after t1's exclusive lock.
+ AdvanceAction();
+ sm.LockExclusive();
+ // We will only acquire the lock after t1 unlocks.
+ MOZ_RELEASE_ASSERT(nextAction == t2UnblockedAfterT1Unlock);
+ MOZ_RELEASE_ASSERT(sm.IsLockedExclusiveOnCurrentThread());
+ AdvanceAction();
+ break;
+ case t2UnlockExclusive:
+ MOZ_RELEASE_ASSERT(sm.IsLockedExclusiveOnCurrentThread());
+ // Advance first, before unlocking, so that t1 sees the new state.
+ AdvanceAction();
+ sm.UnlockExclusive();
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ break;
+ case t2LockShared:
+ sm.LockShared();
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ AdvanceAction();
+ break;
+ case t2StillLockedShared:
+ AdvanceAction();
+ break;
+ case t2UnlockShared:
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ // Advance first, before unlocking, so that t1 sees the new state.
+ AdvanceAction();
+ sm.UnlockShared();
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ break;
+ case t2CheckAfterT1Lock:
+ MOZ_RELEASE_ASSERT(!sm.IsLockedExclusiveOnCurrentThread());
+ AdvanceAction();
+ break;
+ case done:
+ return;
+ default:
+ // Ignore other actions intended for t1.
+ break;
+ }
+ }
+ }};
+
+ t1.join();
+ t2.join();
+
+ printf("TestSharedMutex done\n");
+}
+
+void TestProportionValue() {
+ printf("TestProportionValue...\n");
+
+ using mozilla::ProportionValue;
+
+#define STATIC_ASSERT_EQ(a, b) \
+ static_assert((a) == (b)); \
+ MOZ_RELEASE_ASSERT((a) == (b));
+
+#define STATIC_ASSERT(e) STATIC_ASSERT_EQ(e, true)
+
+ // Conversion from&to double.
+ STATIC_ASSERT_EQ(ProportionValue().ToDouble(), 0.0);
+ STATIC_ASSERT_EQ(ProportionValue(0.0).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ(ProportionValue(0.5).ToDouble(), 0.5);
+ STATIC_ASSERT_EQ(ProportionValue(1.0).ToDouble(), 1.0);
+
+ // Clamping.
+ STATIC_ASSERT_EQ(
+ ProportionValue(std::numeric_limits<double>::min()).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ(
+ ProportionValue(std::numeric_limits<long double>::min()).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ(ProportionValue(-1.0).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ(ProportionValue(-0.01).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ(ProportionValue(-0.0).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ(ProportionValue(1.01).ToDouble(), 1.0);
+ STATIC_ASSERT_EQ(
+ ProportionValue(std::numeric_limits<double>::max()).ToDouble(), 1.0);
+
+ // User-defined literal.
+ {
+ using namespace mozilla::literals::ProportionValue_literals;
+ STATIC_ASSERT_EQ(0_pc, ProportionValue(0.0));
+ STATIC_ASSERT_EQ(0._pc, ProportionValue(0.0));
+ STATIC_ASSERT_EQ(50_pc, ProportionValue(0.5));
+ STATIC_ASSERT_EQ(50._pc, ProportionValue(0.5));
+ STATIC_ASSERT_EQ(100_pc, ProportionValue(1.0));
+ STATIC_ASSERT_EQ(100._pc, ProportionValue(1.0));
+ STATIC_ASSERT_EQ(101_pc, ProportionValue(1.0));
+ STATIC_ASSERT_EQ(100.01_pc, ProportionValue(1.0));
+ STATIC_ASSERT_EQ(1000_pc, ProportionValue(1.0));
+ STATIC_ASSERT_EQ(1000._pc, ProportionValue(1.0));
+ }
+ {
+ // ProportionValue_literals is an inline namespace of mozilla::literals, so
+ // it's optional.
+ using namespace mozilla::literals;
+ STATIC_ASSERT_EQ(0_pc, ProportionValue(0.0));
+ STATIC_ASSERT_EQ(0._pc, ProportionValue(0.0));
+ STATIC_ASSERT_EQ(50_pc, ProportionValue(0.5));
+ STATIC_ASSERT_EQ(50._pc, ProportionValue(0.5));
+ STATIC_ASSERT_EQ(100_pc, ProportionValue(1.0));
+ STATIC_ASSERT_EQ(100._pc, ProportionValue(1.0));
+ STATIC_ASSERT_EQ(101_pc, ProportionValue(1.0));
+ STATIC_ASSERT_EQ(100.01_pc, ProportionValue(1.0));
+ STATIC_ASSERT_EQ(1000_pc, ProportionValue(1.0));
+ STATIC_ASSERT_EQ(1000._pc, ProportionValue(1.0));
+ }
+
+ // Invalid construction, conversion to double NaN.
+ MOZ_RELEASE_ASSERT(std::isnan(ProportionValue::MakeInvalid().ToDouble()));
+
+ using namespace mozilla::literals::ProportionValue_literals;
+
+ // Conversion to&from underlying integral number.
+ STATIC_ASSERT_EQ(
+ ProportionValue::FromUnderlyingType((0_pc).ToUnderlyingType()).ToDouble(),
+ 0.0);
+ STATIC_ASSERT_EQ(
+ ProportionValue::FromUnderlyingType((50_pc).ToUnderlyingType())
+ .ToDouble(),
+ 0.5);
+ STATIC_ASSERT_EQ(
+ ProportionValue::FromUnderlyingType((100_pc).ToUnderlyingType())
+ .ToDouble(),
+ 1.0);
+ STATIC_ASSERT(ProportionValue::FromUnderlyingType(
+ ProportionValue::MakeInvalid().ToUnderlyingType())
+ .IsInvalid());
+
+ // IsExactlyZero.
+ STATIC_ASSERT(ProportionValue().IsExactlyZero());
+ STATIC_ASSERT((0_pc).IsExactlyZero());
+ STATIC_ASSERT(!(50_pc).IsExactlyZero());
+ STATIC_ASSERT(!(100_pc).IsExactlyZero());
+ STATIC_ASSERT(!ProportionValue::MakeInvalid().IsExactlyZero());
+
+ // IsExactlyOne.
+ STATIC_ASSERT(!ProportionValue().IsExactlyOne());
+ STATIC_ASSERT(!(0_pc).IsExactlyOne());
+ STATIC_ASSERT(!(50_pc).IsExactlyOne());
+ STATIC_ASSERT((100_pc).IsExactlyOne());
+ STATIC_ASSERT(!ProportionValue::MakeInvalid().IsExactlyOne());
+
+ // IsValid.
+ STATIC_ASSERT(ProportionValue().IsValid());
+ STATIC_ASSERT((0_pc).IsValid());
+ STATIC_ASSERT((50_pc).IsValid());
+ STATIC_ASSERT((100_pc).IsValid());
+ STATIC_ASSERT(!ProportionValue::MakeInvalid().IsValid());
+
+ // IsInvalid.
+ STATIC_ASSERT(!ProportionValue().IsInvalid());
+ STATIC_ASSERT(!(0_pc).IsInvalid());
+ STATIC_ASSERT(!(50_pc).IsInvalid());
+ STATIC_ASSERT(!(100_pc).IsInvalid());
+ STATIC_ASSERT(ProportionValue::MakeInvalid().IsInvalid());
+
+ // Addition.
+ STATIC_ASSERT_EQ((0_pc + 0_pc).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ((0_pc + 100_pc).ToDouble(), 1.0);
+ STATIC_ASSERT_EQ((100_pc + 0_pc).ToDouble(), 1.0);
+ STATIC_ASSERT_EQ((100_pc + 100_pc).ToDouble(), 1.0);
+ STATIC_ASSERT((ProportionValue::MakeInvalid() + 50_pc).IsInvalid());
+ STATIC_ASSERT((50_pc + ProportionValue::MakeInvalid()).IsInvalid());
+
+ // Subtraction.
+ STATIC_ASSERT_EQ((0_pc - 0_pc).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ((0_pc - 100_pc).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ((100_pc - 0_pc).ToDouble(), 1.0);
+ STATIC_ASSERT_EQ((100_pc - 100_pc).ToDouble(), 0.0);
+ STATIC_ASSERT((ProportionValue::MakeInvalid() - 50_pc).IsInvalid());
+ STATIC_ASSERT((50_pc - ProportionValue::MakeInvalid()).IsInvalid());
+
+ // Multiplication.
+ STATIC_ASSERT_EQ((0_pc * 0_pc).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ((0_pc * 100_pc).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ((50_pc * 50_pc).ToDouble(), 0.25);
+ STATIC_ASSERT_EQ((50_pc * 100_pc).ToDouble(), 0.5);
+ STATIC_ASSERT_EQ((100_pc * 50_pc).ToDouble(), 0.5);
+ STATIC_ASSERT_EQ((100_pc * 0_pc).ToDouble(), 0.0);
+ STATIC_ASSERT_EQ((100_pc * 100_pc).ToDouble(), 1.0);
+ STATIC_ASSERT((ProportionValue::MakeInvalid() * 50_pc).IsInvalid());
+ STATIC_ASSERT((50_pc * ProportionValue::MakeInvalid()).IsInvalid());
+
+ // Division by a positive integer value.
+ STATIC_ASSERT_EQ((100_pc / 1u).ToDouble(), 1.0);
+ STATIC_ASSERT_EQ((100_pc / 2u).ToDouble(), 0.5);
+ STATIC_ASSERT_EQ(
+ (ProportionValue::FromUnderlyingType(6u) / 2u).ToUnderlyingType(), 3u);
+ STATIC_ASSERT_EQ(
+ (ProportionValue::FromUnderlyingType(5u) / 2u).ToUnderlyingType(), 2u);
+ STATIC_ASSERT_EQ(
+ (ProportionValue::FromUnderlyingType(1u) / 2u).ToUnderlyingType(), 0u);
+ STATIC_ASSERT_EQ(
+ (ProportionValue::FromUnderlyingType(0u) / 2u).ToUnderlyingType(), 0u);
+ STATIC_ASSERT((100_pc / 0u).IsInvalid());
+ STATIC_ASSERT((ProportionValue::MakeInvalid() / 2u).IsInvalid());
+
+ // Multiplication by a positive integer value.
+ STATIC_ASSERT_EQ((100_pc * 1u).ToDouble(), 1.0);
+ STATIC_ASSERT_EQ((50_pc * 1u).ToDouble(), 0.5);
+ STATIC_ASSERT_EQ((50_pc * 2u).ToDouble(), 1.0);
+ STATIC_ASSERT_EQ((50_pc * 3u).ToDouble(), 1.0); // Clamped.
+ STATIC_ASSERT_EQ(
+ (ProportionValue::FromUnderlyingType(1u) * 2u).ToUnderlyingType(), 2u);
+ STATIC_ASSERT((ProportionValue::MakeInvalid() * 2u).IsInvalid());
+
+ // Verifying PV - u < (PV / u) * u <= PV, with n=3, PV between 6 and 9 :
+ STATIC_ASSERT_EQ(
+ (ProportionValue::FromUnderlyingType(6u) / 3u).ToUnderlyingType(), 2u);
+ STATIC_ASSERT_EQ(
+ (ProportionValue::FromUnderlyingType(7u) / 3u).ToUnderlyingType(), 2u);
+ STATIC_ASSERT_EQ(
+ (ProportionValue::FromUnderlyingType(8u) / 3u).ToUnderlyingType(), 2u);
+ STATIC_ASSERT_EQ(
+ (ProportionValue::FromUnderlyingType(9u) / 3u).ToUnderlyingType(), 3u);
+
+ // Direct comparisons.
+ STATIC_ASSERT_EQ(0_pc, 0_pc);
+ STATIC_ASSERT(0_pc == 0_pc);
+ STATIC_ASSERT(!(0_pc == 100_pc));
+ STATIC_ASSERT(0_pc != 100_pc);
+ STATIC_ASSERT(!(0_pc != 0_pc));
+ STATIC_ASSERT(0_pc < 100_pc);
+ STATIC_ASSERT(!(0_pc < 0_pc));
+ STATIC_ASSERT(0_pc <= 0_pc);
+ STATIC_ASSERT(0_pc <= 100_pc);
+ STATIC_ASSERT(!(100_pc <= 0_pc));
+ STATIC_ASSERT(100_pc > 0_pc);
+ STATIC_ASSERT(!(100_pc > 100_pc));
+ STATIC_ASSERT(100_pc >= 0_pc);
+ STATIC_ASSERT(100_pc >= 100_pc);
+ STATIC_ASSERT(!(0_pc >= 100_pc));
+ // 0.5 is binary-friendly, so we can double it and compare it exactly.
+ STATIC_ASSERT_EQ(50_pc + 50_pc, 100_pc);
+
+#undef STATIC_ASSERT_EQ
+
+ printf("TestProportionValue done\n");
+}
+
+template <typename Arg0, typename... Args>
+bool AreAllEqual(Arg0&& aArg0, Args&&... aArgs) {
+ return ((aArg0 == aArgs) && ...);
+}
+
+void TestProgressLogger() {
+ printf("TestProgressLogger...\n");
+
+ using mozilla::ProgressLogger;
+ using mozilla::ProportionValue;
+ using namespace mozilla::literals::ProportionValue_literals;
+
+ auto progressRefPtr = mozilla::MakeRefPtr<ProgressLogger::SharedProgress>();
+ MOZ_RELEASE_ASSERT(progressRefPtr);
+ MOZ_RELEASE_ASSERT(progressRefPtr->Progress().IsExactlyZero());
+
+ {
+ ProgressLogger pl(progressRefPtr, "Started", "All done");
+ MOZ_RELEASE_ASSERT(progressRefPtr->Progress().IsExactlyZero());
+ MOZ_RELEASE_ASSERT(pl.GetGlobalProgress().IsExactlyZero());
+ MOZ_RELEASE_ASSERT(AreAllEqual(progressRefPtr->LastLocation(),
+ pl.GetLastGlobalLocation(), "Started"));
+
+ // At this top level, the scale is 1:1.
+ pl.SetLocalProgress(10_pc, "Top 10%");
+ MOZ_RELEASE_ASSERT(
+ AreAllEqual(progressRefPtr->Progress(), pl.GetGlobalProgress(), 10_pc));
+ MOZ_RELEASE_ASSERT(AreAllEqual(progressRefPtr->LastLocation(),
+ pl.GetLastGlobalLocation(), "Top 10%"));
+
+ pl.SetLocalProgress(0_pc, "Restarted");
+ MOZ_RELEASE_ASSERT(
+ AreAllEqual(progressRefPtr->Progress(), pl.GetGlobalProgress(), 0_pc));
+ MOZ_RELEASE_ASSERT(AreAllEqual(progressRefPtr->LastLocation(),
+ pl.GetLastGlobalLocation(), "Restarted"));
+
+ {
+ // Create a sub-logger for the whole global range. Notice that this is
+ // moving the current progress back to 0.
+ ProgressLogger plSub1 =
+ pl.CreateSubLoggerFromTo(0_pc, "Sub1 started", 100_pc, "Sub1 ended");
+ MOZ_RELEASE_ASSERT(progressRefPtr->Progress().IsExactlyZero());
+ MOZ_RELEASE_ASSERT(pl.GetGlobalProgress().IsExactlyZero());
+ MOZ_RELEASE_ASSERT(plSub1.GetGlobalProgress().IsExactlyZero());
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->LastLocation(), pl.GetLastGlobalLocation(),
+ plSub1.GetLastGlobalLocation(), "Sub1 started"));
+
+ // At this level, the scale is still 1:1.
+ plSub1.SetLocalProgress(10_pc, "Sub1 10%");
+ MOZ_RELEASE_ASSERT(AreAllEqual(progressRefPtr->Progress(),
+ pl.GetGlobalProgress(),
+ plSub1.GetGlobalProgress(), 10_pc));
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->LastLocation(), pl.GetLastGlobalLocation(),
+ plSub1.GetLastGlobalLocation(), "Sub1 10%"));
+
+ {
+ // Create a sub-logger half the global range.
+ // 0 0.25 0.375 0.5 0.625 0.75 1
+ // |---------------|-------|-------|-------|-------|---------------|
+ // plSub2: 0 0.25 0.5 0.75 1
+ ProgressLogger plSub2 = plSub1.CreateSubLoggerFromTo(
+ 25_pc, "Sub2 started", 75_pc, "Sub2 ended");
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->Progress(), pl.GetGlobalProgress(),
+ plSub1.GetGlobalProgress(), plSub2.GetGlobalProgress(), 25_pc));
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->LastLocation(), pl.GetLastGlobalLocation(),
+ plSub1.GetLastGlobalLocation(), plSub2.GetLastGlobalLocation(),
+ "Sub2 started"));
+
+ plSub2.SetLocalProgress(25_pc, "Sub2 25%");
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->Progress(), pl.GetGlobalProgress(),
+ plSub1.GetGlobalProgress(), plSub2.GetGlobalProgress(), 37.5_pc));
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->LastLocation(), pl.GetLastGlobalLocation(),
+ plSub1.GetLastGlobalLocation(), plSub2.GetLastGlobalLocation(),
+ "Sub2 25%"));
+
+ plSub2.SetLocalProgress(50_pc, "Sub2 50%");
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->Progress(), pl.GetGlobalProgress(),
+ plSub1.GetGlobalProgress(), plSub2.GetGlobalProgress(), 50_pc));
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->LastLocation(), pl.GetLastGlobalLocation(),
+ plSub1.GetLastGlobalLocation(), plSub2.GetLastGlobalLocation(),
+ "Sub2 50%"));
+
+ {
+ // Create a sub-logger half the parent range.
+ // 0 0.25 0.375 0.5 0.625 0.75 1
+ // |---------------|-------|-------|-------|-------|---------------|
+ // plSub2: 0 0.25 0.5 0.75 1
+ // plSub3: 0 0.5 1
+ ProgressLogger plSub3 = plSub2.CreateSubLoggerTo(
+ "Sub3 started", 100_pc, ProgressLogger::NO_LOCATION_UPDATE);
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->Progress(), pl.GetGlobalProgress(),
+ plSub1.GetGlobalProgress(), plSub2.GetGlobalProgress(),
+ plSub3.GetGlobalProgress(), 50_pc));
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->LastLocation(), pl.GetLastGlobalLocation(),
+ plSub1.GetLastGlobalLocation(), plSub2.GetLastGlobalLocation(),
+ plSub3.GetLastGlobalLocation(), "Sub3 started"));
+
+ plSub3.SetLocalProgress(50_pc, "Sub3 50%");
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->Progress(), pl.GetGlobalProgress(),
+ plSub1.GetGlobalProgress(), plSub2.GetGlobalProgress(),
+ plSub3.GetGlobalProgress(), 62.5_pc));
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->LastLocation(), pl.GetLastGlobalLocation(),
+ plSub1.GetLastGlobalLocation(), plSub2.GetLastGlobalLocation(),
+ plSub3.GetLastGlobalLocation(), "Sub3 50%"));
+ } // End of plSub3
+
+ // When plSub3 ends, progress moves to its 100%, which is also plSub2's
+ // 100%, which is plSub1's and the global progress of 75%
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->Progress(), pl.GetGlobalProgress(),
+ plSub1.GetGlobalProgress(), plSub2.GetGlobalProgress(), 75_pc));
+ // But location is still at the last explicit update.
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->LastLocation(), pl.GetLastGlobalLocation(),
+ plSub1.GetLastGlobalLocation(), plSub2.GetLastGlobalLocation(),
+ "Sub3 50%"));
+ } // End of plSub2
+
+ MOZ_RELEASE_ASSERT(AreAllEqual(progressRefPtr->Progress(),
+ pl.GetGlobalProgress(),
+ plSub1.GetGlobalProgress(), 75_pc));
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->LastLocation(), pl.GetLastGlobalLocation(),
+ plSub1.GetLastGlobalLocation(), "Sub2 ended"));
+ } // End of plSub1
+
+ MOZ_RELEASE_ASSERT(progressRefPtr->Progress().IsExactlyOne());
+ MOZ_RELEASE_ASSERT(pl.GetGlobalProgress().IsExactlyOne());
+ MOZ_RELEASE_ASSERT(AreAllEqual(progressRefPtr->LastLocation(),
+ pl.GetLastGlobalLocation(), "Sub1 ended"));
+
+ const auto loopStart = 75_pc;
+ const auto loopEnd = 87.5_pc;
+ const uint32_t loopCount = 8;
+ uint32_t expectedIndex = 0u;
+ auto expectedIterationStart = loopStart;
+ const auto iterationIncrement = (loopEnd - loopStart) / loopCount;
+ for (auto&& [index, loopPL] : pl.CreateLoopSubLoggersFromTo(
+ loopStart, loopEnd, loopCount, "looping...")) {
+ MOZ_RELEASE_ASSERT(index == expectedIndex);
+ ++expectedIndex;
+ MOZ_RELEASE_ASSERT(
+ AreAllEqual(progressRefPtr->Progress(), pl.GetGlobalProgress(),
+ loopPL.GetGlobalProgress(), expectedIterationStart));
+ MOZ_RELEASE_ASSERT(AreAllEqual(
+ progressRefPtr->LastLocation(), pl.GetLastGlobalLocation(),
+ loopPL.GetLastGlobalLocation(), "looping..."));
+
+ loopPL.SetLocalProgress(50_pc, "half");
+ MOZ_RELEASE_ASSERT(loopPL.GetGlobalProgress() ==
+ expectedIterationStart + iterationIncrement / 2u);
+ MOZ_RELEASE_ASSERT(
+ AreAllEqual(progressRefPtr->Progress(), pl.GetGlobalProgress(),
+ loopPL.GetGlobalProgress(),
+ expectedIterationStart + iterationIncrement / 2u));
+ MOZ_RELEASE_ASSERT(AreAllEqual(progressRefPtr->LastLocation(),
+ pl.GetLastGlobalLocation(),
+ loopPL.GetLastGlobalLocation(), "half"));
+
+ expectedIterationStart = expectedIterationStart + iterationIncrement;
+ }
+ MOZ_RELEASE_ASSERT(AreAllEqual(progressRefPtr->Progress(),
+ pl.GetGlobalProgress(),
+ expectedIterationStart));
+ MOZ_RELEASE_ASSERT(AreAllEqual(progressRefPtr->LastLocation(),
+ pl.GetLastGlobalLocation(), "looping..."));
+ } // End of pl
+ MOZ_RELEASE_ASSERT(progressRefPtr->Progress().IsExactlyOne());
+ MOZ_RELEASE_ASSERT(AreAllEqual(progressRefPtr->LastLocation(), "All done"));
+
+ printf("TestProgressLogger done\n");
+}
+
+#ifdef MOZ_GECKO_PROFILER
+
+MOZ_MAYBE_UNUSED static void SleepMilli(unsigned aMilliseconds) {
+# if defined(_MSC_VER) || defined(__MINGW32__)
+ Sleep(aMilliseconds);
+# else
+ struct timespec ts = {/* .tv_sec */ static_cast<time_t>(aMilliseconds / 1000),
+ /* ts.tv_nsec */ long(aMilliseconds % 1000) * 1000000};
+ struct timespec tr = {0, 0};
+ while (nanosleep(&ts, &tr)) {
+ if (errno == EINTR) {
+ ts = tr;
+ } else {
+ printf("nanosleep() -> %s\n", strerror(errno));
+ exit(1);
+ }
+ }
+# endif
+}
+
+MOZ_MAYBE_UNUSED static void WaitUntilTimeStampChanges(
+ const mozilla::TimeStamp& aTimeStampToCompare = mozilla::TimeStamp::Now()) {
+ while (aTimeStampToCompare == mozilla::TimeStamp::Now()) {
+ SleepMilli(1);
+ }
+}
+
+using namespace mozilla;
+
+void TestPowerOfTwoMask() {
+ printf("TestPowerOfTwoMask...\n");
+
+ static_assert(MakePowerOfTwoMask<uint32_t, 0>().MaskValue() == 0);
+ constexpr PowerOfTwoMask<uint32_t> c0 = MakePowerOfTwoMask<uint32_t, 0>();
+ MOZ_RELEASE_ASSERT(c0.MaskValue() == 0);
+
+ static_assert(MakePowerOfTwoMask<uint32_t, 0xFFu>().MaskValue() == 0xFFu);
+ constexpr PowerOfTwoMask<uint32_t> cFF =
+ MakePowerOfTwoMask<uint32_t, 0xFFu>();
+ MOZ_RELEASE_ASSERT(cFF.MaskValue() == 0xFFu);
+
+ static_assert(MakePowerOfTwoMask<uint32_t, 0xFFFFFFFFu>().MaskValue() ==
+ 0xFFFFFFFFu);
+ constexpr PowerOfTwoMask<uint32_t> cFFFFFFFF =
+ MakePowerOfTwoMask<uint32_t, 0xFFFFFFFFu>();
+ MOZ_RELEASE_ASSERT(cFFFFFFFF.MaskValue() == 0xFFFFFFFFu);
+
+ struct TestDataU32 {
+ uint32_t mInput;
+ uint32_t mMask;
+ };
+ // clang-format off
+ TestDataU32 tests[] = {
+ { 0, 0 },
+ { 1, 1 },
+ { 2, 3 },
+ { 3, 3 },
+ { 4, 7 },
+ { 5, 7 },
+ { (1u << 31) - 1, (1u << 31) - 1 },
+ { (1u << 31), uint32_t(-1) },
+ { (1u << 31) + 1, uint32_t(-1) },
+ { uint32_t(-1), uint32_t(-1) }
+ };
+ // clang-format on
+ for (const TestDataU32& test : tests) {
+ PowerOfTwoMask<uint32_t> p2m(test.mInput);
+ MOZ_RELEASE_ASSERT(p2m.MaskValue() == test.mMask);
+ for (const TestDataU32& inner : tests) {
+ if (p2m.MaskValue() != uint32_t(-1)) {
+ MOZ_RELEASE_ASSERT((inner.mInput % p2m) ==
+ (inner.mInput % (p2m.MaskValue() + 1)));
+ }
+ MOZ_RELEASE_ASSERT((inner.mInput & p2m) == (inner.mInput % p2m));
+ MOZ_RELEASE_ASSERT((p2m & inner.mInput) == (inner.mInput & p2m));
+ }
+ }
+
+ printf("TestPowerOfTwoMask done\n");
+}
+
+void TestPowerOfTwo() {
+ printf("TestPowerOfTwo...\n");
+
+ static_assert(MakePowerOfTwo<uint32_t, 1>().Value() == 1);
+ constexpr PowerOfTwo<uint32_t> c1 = MakePowerOfTwo<uint32_t, 1>();
+ MOZ_RELEASE_ASSERT(c1.Value() == 1);
+ static_assert(MakePowerOfTwo<uint32_t, 1>().Mask().MaskValue() == 0);
+
+ static_assert(MakePowerOfTwo<uint32_t, 128>().Value() == 128);
+ constexpr PowerOfTwo<uint32_t> c128 = MakePowerOfTwo<uint32_t, 128>();
+ MOZ_RELEASE_ASSERT(c128.Value() == 128);
+ static_assert(MakePowerOfTwo<uint32_t, 128>().Mask().MaskValue() == 127);
+
+ static_assert(MakePowerOfTwo<uint32_t, 0x80000000u>().Value() == 0x80000000u);
+ constexpr PowerOfTwo<uint32_t> cMax = MakePowerOfTwo<uint32_t, 0x80000000u>();
+ MOZ_RELEASE_ASSERT(cMax.Value() == 0x80000000u);
+ static_assert(MakePowerOfTwo<uint32_t, 0x80000000u>().Mask().MaskValue() ==
+ 0x7FFFFFFFu);
+
+ struct TestDataU32 {
+ uint32_t mInput;
+ uint32_t mValue;
+ uint32_t mMask;
+ };
+ // clang-format off
+ TestDataU32 tests[] = {
+ { 0, 1, 0 },
+ { 1, 1, 0 },
+ { 2, 2, 1 },
+ { 3, 4, 3 },
+ { 4, 4, 3 },
+ { 5, 8, 7 },
+ { (1u << 31) - 1, (1u << 31), (1u << 31) - 1 },
+ { (1u << 31), (1u << 31), (1u << 31) - 1 },
+ { (1u << 31) + 1, (1u << 31), (1u << 31) - 1 },
+ { uint32_t(-1), (1u << 31), (1u << 31) - 1 }
+ };
+ // clang-format on
+ for (const TestDataU32& test : tests) {
+ PowerOfTwo<uint32_t> p2(test.mInput);
+ MOZ_RELEASE_ASSERT(p2.Value() == test.mValue);
+ MOZ_RELEASE_ASSERT(p2.MaskValue() == test.mMask);
+ PowerOfTwoMask<uint32_t> p2m = p2.Mask();
+ MOZ_RELEASE_ASSERT(p2m.MaskValue() == test.mMask);
+ for (const TestDataU32& inner : tests) {
+ MOZ_RELEASE_ASSERT((inner.mInput % p2) == (inner.mInput % p2.Value()));
+ }
+ }
+
+ printf("TestPowerOfTwo done\n");
+}
+
+void TestLEB128() {
+ printf("TestLEB128...\n");
+
+ MOZ_RELEASE_ASSERT(ULEB128MaxSize<uint8_t>() == 2);
+ MOZ_RELEASE_ASSERT(ULEB128MaxSize<uint16_t>() == 3);
+ MOZ_RELEASE_ASSERT(ULEB128MaxSize<uint32_t>() == 5);
+ MOZ_RELEASE_ASSERT(ULEB128MaxSize<uint64_t>() == 10);
+
+ struct TestDataU64 {
+ uint64_t mValue;
+ unsigned mSize;
+ const char* mBytes;
+ };
+ // clang-format off
+ TestDataU64 tests[] = {
+ // Small numbers should keep their normal byte representation.
+ { 0u, 1, "\0" },
+ { 1u, 1, "\x01" },
+
+ // 0111 1111 (127, or 0x7F) is the highest number that fits into a single
+ // LEB128 byte. It gets encoded as 0111 1111, note the most significant bit
+ // is off.
+ { 0x7Fu, 1, "\x7F" },
+
+ // Next number: 128, or 0x80.
+ // Original data representation: 1000 0000
+ // Broken up into groups of 7: 1 0000000
+ // Padded with 0 (msB) or 1 (lsB): 00000001 10000000
+ // Byte representation: 0x01 0x80
+ // Little endian order: -> 0x80 0x01
+ { 0x80u, 2, "\x80\x01" },
+
+ // Next: 129, or 0x81 (showing that we don't lose low bits.)
+ // Original data representation: 1000 0001
+ // Broken up into groups of 7: 1 0000001
+ // Padded with 0 (msB) or 1 (lsB): 00000001 10000001
+ // Byte representation: 0x01 0x81
+ // Little endian order: -> 0x81 0x01
+ { 0x81u, 2, "\x81\x01" },
+
+ // Highest 8-bit number: 255, or 0xFF.
+ // Original data representation: 1111 1111
+ // Broken up into groups of 7: 1 1111111
+ // Padded with 0 (msB) or 1 (lsB): 00000001 11111111
+ // Byte representation: 0x01 0xFF
+ // Little endian order: -> 0xFF 0x01
+ { 0xFFu, 2, "\xFF\x01" },
+
+ // Next: 256, or 0x100.
+ // Original data representation: 1 0000 0000
+ // Broken up into groups of 7: 10 0000000
+ // Padded with 0 (msB) or 1 (lsB): 00000010 10000000
+ // Byte representation: 0x10 0x80
+ // Little endian order: -> 0x80 0x02
+ { 0x100u, 2, "\x80\x02" },
+
+ // Highest 32-bit number: 0xFFFFFFFF (8 bytes, all bits set).
+ // Original: 1111 1111 1111 1111 1111 1111 1111 1111
+ // Groups: 1111 1111111 1111111 1111111 1111111
+ // Padded: 00001111 11111111 11111111 11111111 11111111
+ // Bytes: 0x0F 0xFF 0xFF 0xFF 0xFF
+ // Little Endian: -> 0xFF 0xFF 0xFF 0xFF 0x0F
+ { 0xFFFFFFFFu, 5, "\xFF\xFF\xFF\xFF\x0F" },
+
+ // Highest 64-bit number: 0xFFFFFFFFFFFFFFFF (16 bytes, all bits set).
+ // 64 bits, that's 9 groups of 7 bits, plus 1 (most significant) bit.
+ { 0xFFFFFFFFFFFFFFFFu, 10, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x01" }
+ };
+ // clang-format on
+
+ for (const TestDataU64& test : tests) {
+ MOZ_RELEASE_ASSERT(ULEB128Size(test.mValue) == test.mSize);
+ // Prepare a buffer that can accomodate the largest-possible LEB128.
+ uint8_t buffer[ULEB128MaxSize<uint64_t>()];
+ // Use a pointer into the buffer as iterator.
+ uint8_t* p = buffer;
+ // And write the LEB128.
+ WriteULEB128(test.mValue, p);
+ // Pointer (iterator) should have advanced just past the expected LEB128
+ // size.
+ MOZ_RELEASE_ASSERT(p == buffer + test.mSize);
+ // Check expected bytes.
+ for (unsigned i = 0; i < test.mSize; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t(test.mBytes[i]));
+ }
+
+ // Move pointer (iterator) back to start of buffer.
+ p = buffer;
+ // And read the LEB128 we wrote above.
+ uint64_t read = ReadULEB128<uint64_t>(p);
+ // Pointer (iterator) should have also advanced just past the expected
+ // LEB128 size.
+ MOZ_RELEASE_ASSERT(p == buffer + test.mSize);
+ // And check the read value.
+ MOZ_RELEASE_ASSERT(read == test.mValue);
+
+ // Testing ULEB128 reader.
+ ULEB128Reader<uint64_t> reader;
+ MOZ_RELEASE_ASSERT(!reader.IsComplete());
+ // Move pointer back to start of buffer.
+ p = buffer;
+ for (;;) {
+ // Read a byte and feed it to the reader.
+ if (reader.FeedByteIsComplete(*p++)) {
+ break;
+ }
+ // Not complete yet, we shouldn't have reached the end pointer.
+ MOZ_RELEASE_ASSERT(!reader.IsComplete());
+ MOZ_RELEASE_ASSERT(p < buffer + test.mSize);
+ }
+ MOZ_RELEASE_ASSERT(reader.IsComplete());
+ // Pointer should have advanced just past the expected LEB128 size.
+ MOZ_RELEASE_ASSERT(p == buffer + test.mSize);
+ // And check the read value.
+ MOZ_RELEASE_ASSERT(reader.Value() == test.mValue);
+
+ // And again after a Reset.
+ reader.Reset();
+ MOZ_RELEASE_ASSERT(!reader.IsComplete());
+ p = buffer;
+ for (;;) {
+ if (reader.FeedByteIsComplete(*p++)) {
+ break;
+ }
+ MOZ_RELEASE_ASSERT(!reader.IsComplete());
+ MOZ_RELEASE_ASSERT(p < buffer + test.mSize);
+ }
+ MOZ_RELEASE_ASSERT(reader.IsComplete());
+ MOZ_RELEASE_ASSERT(p == buffer + test.mSize);
+ MOZ_RELEASE_ASSERT(reader.Value() == test.mValue);
+ }
+
+ printf("TestLEB128 done\n");
+}
+
+struct StringWriteFunc final : public JSONWriteFunc {
+ std::string mString;
+
+ void Write(const mozilla::Span<const char>& aStr) final {
+ mString.append(aStr.data(), aStr.size());
+ }
+};
+
+void CheckJSON(mozilla::baseprofiler::SpliceableJSONWriter& aWriter,
+ const char* aExpected, int aLine) {
+ const std::string& actual =
+ static_cast<StringWriteFunc&>(aWriter.WriteFunc()).mString;
+ if (strcmp(aExpected, actual.c_str()) != 0) {
+ fprintf(stderr,
+ "---- EXPECTED ---- (line %d)\n<<<%s>>>\n"
+ "---- ACTUAL ----\n<<<%s>>>\n",
+ aLine, aExpected, actual.c_str());
+ MOZ_RELEASE_ASSERT(false, "expected and actual output don't match");
+ }
+}
+
+void TestJSONTimeOutput() {
+ printf("TestJSONTimeOutput...\n");
+
+# define TEST(in, out) \
+ do { \
+ mozilla::baseprofiler::SpliceableJSONWriter writer( \
+ mozilla::MakeUnique<StringWriteFunc>(), \
+ FailureLatchInfallibleSource::Singleton()); \
+ writer.Start(); \
+ writer.TimeDoubleMsProperty("time_ms", (in)); \
+ writer.End(); \
+ CheckJSON(writer, "{\"time_ms\":" out "}", __LINE__); \
+ } while (false);
+
+ TEST(0, "0");
+
+ TEST(0.000'000'1, "0");
+ TEST(0.000'000'4, "0");
+ TEST(0.000'000'499, "0");
+ TEST(0.000'000'5, "0.000001");
+ TEST(0.000'001, "0.000001");
+ TEST(0.000'01, "0.00001");
+ TEST(0.000'1, "0.0001");
+ TEST(0.001, "0.001");
+ TEST(0.01, "0.01");
+ TEST(0.1, "0.1");
+ TEST(1, "1");
+ TEST(2, "2");
+ TEST(10, "10");
+ TEST(100, "100");
+ TEST(1'000, "1000");
+ TEST(10'000, "10000");
+ TEST(100'000, "100000");
+ TEST(1'000'000, "1000000");
+ // 2^53-2 ns in ms. 2^53-1 is the highest integer value representable in
+ // double, -1 again because we're adding 0.5 before truncating.
+ // That's 104 days, after which the nanosecond precision would decrease.
+ TEST(9'007'199'254.740'990, "9007199254.74099");
+
+ TEST(-0.000'000'1, "0");
+ TEST(-0.000'000'4, "0");
+ TEST(-0.000'000'499, "0");
+ TEST(-0.000'000'5, "-0.000001");
+ TEST(-0.000'001, "-0.000001");
+ TEST(-0.000'01, "-0.00001");
+ TEST(-0.000'1, "-0.0001");
+ TEST(-0.001, "-0.001");
+ TEST(-0.01, "-0.01");
+ TEST(-0.1, "-0.1");
+ TEST(-1, "-1");
+ TEST(-2, "-2");
+ TEST(-10, "-10");
+ TEST(-100, "-100");
+ TEST(-1'000, "-1000");
+ TEST(-10'000, "-10000");
+ TEST(-100'000, "-100000");
+ TEST(-1'000'000, "-1000000");
+ TEST(-9'007'199'254.740'990, "-9007199254.74099");
+
+# undef TEST
+
+ printf("TestJSONTimeOutput done\n");
+}
+
+template <uint8_t byte, uint8_t... tail>
+constexpr bool TestConstexprULEB128Reader(ULEB128Reader<uint64_t>& aReader) {
+ if (aReader.IsComplete()) {
+ return false;
+ }
+ const bool isComplete = aReader.FeedByteIsComplete(byte);
+ if (aReader.IsComplete() != isComplete) {
+ return false;
+ }
+ if constexpr (sizeof...(tail) == 0) {
+ return isComplete;
+ } else {
+ if (isComplete) {
+ return false;
+ }
+ return TestConstexprULEB128Reader<tail...>(aReader);
+ }
+}
+
+template <uint64_t expected, uint8_t... bytes>
+constexpr bool TestConstexprULEB128Reader() {
+ ULEB128Reader<uint64_t> reader;
+ if (!TestConstexprULEB128Reader<bytes...>(reader)) {
+ return false;
+ }
+ if (!reader.IsComplete()) {
+ return false;
+ }
+ if (reader.Value() != expected) {
+ return false;
+ }
+
+ reader.Reset();
+ if (!TestConstexprULEB128Reader<bytes...>(reader)) {
+ return false;
+ }
+ if (!reader.IsComplete()) {
+ return false;
+ }
+ if (reader.Value() != expected) {
+ return false;
+ }
+
+ return true;
+}
+
+static_assert(TestConstexprULEB128Reader<0x0u, 0x0u>());
+static_assert(!TestConstexprULEB128Reader<0x0u, 0x0u, 0x0u>());
+static_assert(TestConstexprULEB128Reader<0x1u, 0x1u>());
+static_assert(TestConstexprULEB128Reader<0x7Fu, 0x7Fu>());
+static_assert(TestConstexprULEB128Reader<0x80u, 0x80u, 0x01u>());
+static_assert(!TestConstexprULEB128Reader<0x80u, 0x80u>());
+static_assert(!TestConstexprULEB128Reader<0x80u, 0x01u>());
+static_assert(TestConstexprULEB128Reader<0x81u, 0x81u, 0x01u>());
+static_assert(TestConstexprULEB128Reader<0xFFu, 0xFFu, 0x01u>());
+static_assert(TestConstexprULEB128Reader<0x100u, 0x80u, 0x02u>());
+static_assert(TestConstexprULEB128Reader<0xFFFFFFFFu, 0xFFu, 0xFFu, 0xFFu,
+ 0xFFu, 0x0Fu>());
+static_assert(
+ !TestConstexprULEB128Reader<0xFFFFFFFFu, 0xFFu, 0xFFu, 0xFFu, 0xFFu>());
+static_assert(!TestConstexprULEB128Reader<0xFFFFFFFFu, 0xFFu, 0xFFu, 0xFFu,
+ 0xFFu, 0xFFu, 0x0Fu>());
+static_assert(
+ TestConstexprULEB128Reader<0xFFFFFFFFFFFFFFFFu, 0xFFu, 0xFFu, 0xFFu, 0xFFu,
+ 0xFFu, 0xFFu, 0xFFu, 0xFFu, 0xFFu, 0x01u>());
+static_assert(
+ !TestConstexprULEB128Reader<0xFFFFFFFFFFFFFFFFu, 0xFFu, 0xFFu, 0xFFu, 0xFFu,
+ 0xFFu, 0xFFu, 0xFFu, 0xFFu, 0xFFu>());
+
+static void TestChunk() {
+ printf("TestChunk...\n");
+
+ static_assert(!std::is_default_constructible_v<ProfileBufferChunk>,
+ "ProfileBufferChunk should not be default-constructible");
+ static_assert(
+ !std::is_constructible_v<ProfileBufferChunk, ProfileBufferChunk::Length>,
+ "ProfileBufferChunk should not be constructible from Length");
+
+ static_assert(
+ sizeof(ProfileBufferChunk::Header) ==
+ sizeof(ProfileBufferChunk::Header::mOffsetFirstBlock) +
+ sizeof(ProfileBufferChunk::Header::mOffsetPastLastBlock) +
+ sizeof(ProfileBufferChunk::Header::mStartTimeStamp) +
+ sizeof(ProfileBufferChunk::Header::mDoneTimeStamp) +
+ sizeof(ProfileBufferChunk::Header::mBufferBytes) +
+ sizeof(ProfileBufferChunk::Header::mBlockCount) +
+ sizeof(ProfileBufferChunk::Header::mRangeStart) +
+ sizeof(ProfileBufferChunk::Header::mProcessId) +
+ sizeof(ProfileBufferChunk::Header::mPADDING),
+ "ProfileBufferChunk::Header may have unwanted padding, please review");
+ // Note: The above static_assert is an attempt at keeping
+ // ProfileBufferChunk::Header tightly packed, but some changes could make this
+ // impossible to achieve (most probably due to alignment) -- Just do your
+ // best!
+
+ constexpr ProfileBufferChunk::Length TestLen = 1000;
+
+ // Basic allocations of different sizes.
+ for (ProfileBufferChunk::Length len = 0; len <= TestLen; ++len) {
+ auto chunk = ProfileBufferChunk::Create(len);
+ static_assert(
+ std::is_same_v<decltype(chunk), UniquePtr<ProfileBufferChunk>>,
+ "ProfileBufferChunk::Create() should return a "
+ "UniquePtr<ProfileBufferChunk>");
+ MOZ_RELEASE_ASSERT(!!chunk, "OOM!?");
+ MOZ_RELEASE_ASSERT(chunk->BufferBytes() >= len);
+ MOZ_RELEASE_ASSERT(chunk->ChunkBytes() >=
+ len + ProfileBufferChunk::SizeofChunkMetadata());
+ MOZ_RELEASE_ASSERT(chunk->RemainingBytes() == chunk->BufferBytes());
+ MOZ_RELEASE_ASSERT(chunk->OffsetFirstBlock() == 0);
+ MOZ_RELEASE_ASSERT(chunk->OffsetPastLastBlock() == 0);
+ MOZ_RELEASE_ASSERT(chunk->BlockCount() == 0);
+ MOZ_RELEASE_ASSERT(chunk->ProcessId() == 0);
+ MOZ_RELEASE_ASSERT(chunk->RangeStart() == 0);
+ MOZ_RELEASE_ASSERT(chunk->BufferSpan().LengthBytes() ==
+ chunk->BufferBytes());
+ MOZ_RELEASE_ASSERT(!chunk->GetNext());
+ MOZ_RELEASE_ASSERT(!chunk->ReleaseNext());
+ MOZ_RELEASE_ASSERT(chunk->Last() == chunk.get());
+ }
+
+ // Allocate the main test Chunk.
+ auto chunkA = ProfileBufferChunk::Create(TestLen);
+ MOZ_RELEASE_ASSERT(!!chunkA, "OOM!?");
+ MOZ_RELEASE_ASSERT(chunkA->BufferBytes() >= TestLen);
+ MOZ_RELEASE_ASSERT(chunkA->ChunkBytes() >=
+ TestLen + ProfileBufferChunk::SizeofChunkMetadata());
+ MOZ_RELEASE_ASSERT(!chunkA->GetNext());
+ MOZ_RELEASE_ASSERT(!chunkA->ReleaseNext());
+
+ constexpr ProfileBufferIndex chunkARangeStart = 12345;
+ chunkA->SetRangeStart(chunkARangeStart);
+ MOZ_RELEASE_ASSERT(chunkA->RangeStart() == chunkARangeStart);
+
+ // Get a read-only span over its buffer.
+ auto bufferA = chunkA->BufferSpan();
+ static_assert(
+ std::is_same_v<decltype(bufferA), Span<const ProfileBufferChunk::Byte>>,
+ "BufferSpan() should return a Span<const Byte>");
+ MOZ_RELEASE_ASSERT(bufferA.LengthBytes() == chunkA->BufferBytes());
+
+ // Add the initial tail block.
+ constexpr ProfileBufferChunk::Length initTailLen = 10;
+ auto initTail = chunkA->ReserveInitialBlockAsTail(initTailLen);
+ static_assert(
+ std::is_same_v<decltype(initTail), Span<ProfileBufferChunk::Byte>>,
+ "ReserveInitialBlockAsTail() should return a Span<Byte>");
+ MOZ_RELEASE_ASSERT(initTail.LengthBytes() == initTailLen);
+ MOZ_RELEASE_ASSERT(initTail.Elements() == bufferA.Elements());
+ MOZ_RELEASE_ASSERT(chunkA->OffsetFirstBlock() == initTailLen);
+ MOZ_RELEASE_ASSERT(chunkA->OffsetPastLastBlock() == initTailLen);
+
+ // Add the first complete block.
+ constexpr ProfileBufferChunk::Length block1Len = 20;
+ auto block1 = chunkA->ReserveBlock(block1Len);
+ static_assert(
+ std::is_same_v<decltype(block1), ProfileBufferChunk::ReserveReturn>,
+ "ReserveBlock() should return a ReserveReturn");
+ MOZ_RELEASE_ASSERT(block1.mBlockRangeIndex.ConvertToProfileBufferIndex() ==
+ chunkARangeStart + initTailLen);
+ MOZ_RELEASE_ASSERT(block1.mSpan.LengthBytes() == block1Len);
+ MOZ_RELEASE_ASSERT(block1.mSpan.Elements() ==
+ bufferA.Elements() + initTailLen);
+ MOZ_RELEASE_ASSERT(chunkA->OffsetFirstBlock() == initTailLen);
+ MOZ_RELEASE_ASSERT(chunkA->OffsetPastLastBlock() == initTailLen + block1Len);
+ MOZ_RELEASE_ASSERT(chunkA->RemainingBytes() != 0);
+
+ // Add another block to over-fill the ProfileBufferChunk.
+ const ProfileBufferChunk::Length remaining =
+ chunkA->BufferBytes() - (initTailLen + block1Len);
+ constexpr ProfileBufferChunk::Length overfill = 30;
+ const ProfileBufferChunk::Length block2Len = remaining + overfill;
+ ProfileBufferChunk::ReserveReturn block2 = chunkA->ReserveBlock(block2Len);
+ MOZ_RELEASE_ASSERT(block2.mBlockRangeIndex.ConvertToProfileBufferIndex() ==
+ chunkARangeStart + initTailLen + block1Len);
+ MOZ_RELEASE_ASSERT(block2.mSpan.LengthBytes() == remaining);
+ MOZ_RELEASE_ASSERT(block2.mSpan.Elements() ==
+ bufferA.Elements() + initTailLen + block1Len);
+ MOZ_RELEASE_ASSERT(chunkA->OffsetFirstBlock() == initTailLen);
+ MOZ_RELEASE_ASSERT(chunkA->OffsetPastLastBlock() == chunkA->BufferBytes());
+ MOZ_RELEASE_ASSERT(chunkA->RemainingBytes() == 0);
+
+ // Block must be marked "done" before it can be recycled.
+ chunkA->MarkDone();
+
+ // It must be marked "recycled" before data can be added to it again.
+ chunkA->MarkRecycled();
+
+ // Add an empty initial tail block.
+ Span<ProfileBufferChunk::Byte> initTail2 =
+ chunkA->ReserveInitialBlockAsTail(0);
+ MOZ_RELEASE_ASSERT(initTail2.LengthBytes() == 0);
+ MOZ_RELEASE_ASSERT(initTail2.Elements() == bufferA.Elements());
+ MOZ_RELEASE_ASSERT(chunkA->OffsetFirstBlock() == 0);
+ MOZ_RELEASE_ASSERT(chunkA->OffsetPastLastBlock() == 0);
+
+ // Block must be marked "done" before it can be destroyed.
+ chunkA->MarkDone();
+
+ chunkA->SetProcessId(123);
+ MOZ_RELEASE_ASSERT(chunkA->ProcessId() == 123);
+
+ printf("TestChunk done\n");
+}
+
+static void TestChunkManagerSingle() {
+ printf("TestChunkManagerSingle...\n");
+
+ // Construct a ProfileBufferChunkManagerSingle for one chunk of size >=1000.
+ constexpr ProfileBufferChunk::Length ChunkMinBufferBytes = 1000;
+ ProfileBufferChunkManagerSingle cms{ChunkMinBufferBytes};
+
+ // Reference to base class, to exercize virtual methods.
+ ProfileBufferChunkManager& cm = cms;
+
+# ifdef DEBUG
+ const char* chunkManagerRegisterer = "TestChunkManagerSingle";
+ cm.RegisteredWith(chunkManagerRegisterer);
+# endif // DEBUG
+
+ const auto maxTotalSize = cm.MaxTotalSize();
+ MOZ_RELEASE_ASSERT(maxTotalSize >= ChunkMinBufferBytes);
+
+ cm.SetChunkDestroyedCallback([](const ProfileBufferChunk&) {
+ MOZ_RELEASE_ASSERT(
+ false,
+ "ProfileBufferChunkManagerSingle should never destroy its one chunk");
+ });
+
+ UniquePtr<ProfileBufferChunk> extantReleasedChunks =
+ cm.GetExtantReleasedChunks();
+ MOZ_RELEASE_ASSERT(!extantReleasedChunks, "Unexpected released chunk(s)");
+
+ // First request.
+ UniquePtr<ProfileBufferChunk> chunk = cm.GetChunk();
+ MOZ_RELEASE_ASSERT(!!chunk, "First chunk request should always work");
+ MOZ_RELEASE_ASSERT(chunk->BufferBytes() >= ChunkMinBufferBytes,
+ "Unexpected chunk size");
+ MOZ_RELEASE_ASSERT(!chunk->GetNext(), "There should only be one chunk");
+
+ // Keep address, for later checks.
+ const uintptr_t chunkAddress = reinterpret_cast<uintptr_t>(chunk.get());
+
+ extantReleasedChunks = cm.GetExtantReleasedChunks();
+ MOZ_RELEASE_ASSERT(!extantReleasedChunks, "Unexpected released chunk(s)");
+
+ // Second request.
+ MOZ_RELEASE_ASSERT(!cm.GetChunk(), "Second chunk request should always fail");
+
+ extantReleasedChunks = cm.GetExtantReleasedChunks();
+ MOZ_RELEASE_ASSERT(!extantReleasedChunks, "Unexpected released chunk(s)");
+
+ // Add some data to the chunk (to verify recycling later on).
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetFirstBlock == 0);
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetPastLastBlock == 0);
+ MOZ_RELEASE_ASSERT(chunk->RangeStart() == 0);
+ chunk->SetRangeStart(100);
+ MOZ_RELEASE_ASSERT(chunk->RangeStart() == 100);
+ Unused << chunk->ReserveInitialBlockAsTail(1);
+ Unused << chunk->ReserveBlock(2);
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetFirstBlock == 1);
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetPastLastBlock == 1 + 2);
+
+ // Release the first chunk.
+ chunk->MarkDone();
+ cm.ReleaseChunk(std::move(chunk));
+ MOZ_RELEASE_ASSERT(!chunk, "chunk UniquePtr should have been moved-from");
+
+ // Request after release.
+ MOZ_RELEASE_ASSERT(!cm.GetChunk(),
+ "Chunk request after release should also fail");
+
+ // Check released chunk.
+ extantReleasedChunks = cm.GetExtantReleasedChunks();
+ MOZ_RELEASE_ASSERT(!!extantReleasedChunks,
+ "Could not retrieve released chunk");
+ MOZ_RELEASE_ASSERT(!extantReleasedChunks->GetNext(),
+ "There should only be one released chunk");
+ MOZ_RELEASE_ASSERT(
+ reinterpret_cast<uintptr_t>(extantReleasedChunks.get()) == chunkAddress,
+ "Released chunk should be first requested one");
+
+ MOZ_RELEASE_ASSERT(!cm.GetExtantReleasedChunks(),
+ "Unexpected extra released chunk(s)");
+
+ // Another request after release.
+ MOZ_RELEASE_ASSERT(!cm.GetChunk(),
+ "Chunk request after release should also fail");
+
+ MOZ_RELEASE_ASSERT(
+ cm.MaxTotalSize() == maxTotalSize,
+ "MaxTotalSize() should not change after requests&releases");
+
+ // Reset the chunk manager. (Single-only non-virtual function.)
+ cms.Reset(std::move(extantReleasedChunks));
+ MOZ_RELEASE_ASSERT(!extantReleasedChunks,
+ "Released chunk UniquePtr should have been moved-from");
+
+ MOZ_RELEASE_ASSERT(
+ cm.MaxTotalSize() == maxTotalSize,
+ "MaxTotalSize() should not change when resetting with the same chunk");
+
+ // 2nd round, first request. Theoretically async, but this implementation just
+ // immediately runs the callback.
+ bool ran = false;
+ cm.RequestChunk([&](UniquePtr<ProfileBufferChunk> aChunk) {
+ ran = true;
+ MOZ_RELEASE_ASSERT(!!aChunk);
+ chunk = std::move(aChunk);
+ });
+ MOZ_RELEASE_ASSERT(ran, "RequestChunk callback not called immediately");
+ ran = false;
+ cm.FulfillChunkRequests();
+ MOZ_RELEASE_ASSERT(!ran, "FulfillChunkRequests should not have any effects");
+ MOZ_RELEASE_ASSERT(!!chunk, "First chunk request should always work");
+ MOZ_RELEASE_ASSERT(chunk->BufferBytes() >= ChunkMinBufferBytes,
+ "Unexpected chunk size");
+ MOZ_RELEASE_ASSERT(!chunk->GetNext(), "There should only be one chunk");
+ MOZ_RELEASE_ASSERT(reinterpret_cast<uintptr_t>(chunk.get()) == chunkAddress,
+ "Requested chunk should be first requested one");
+ // Verify that chunk is empty and usable.
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetFirstBlock == 0);
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetPastLastBlock == 0);
+ MOZ_RELEASE_ASSERT(chunk->RangeStart() == 0);
+ chunk->SetRangeStart(200);
+ MOZ_RELEASE_ASSERT(chunk->RangeStart() == 200);
+ Unused << chunk->ReserveInitialBlockAsTail(3);
+ Unused << chunk->ReserveBlock(4);
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetFirstBlock == 3);
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetPastLastBlock == 3 + 4);
+
+ // Second request.
+ ran = false;
+ cm.RequestChunk([&](UniquePtr<ProfileBufferChunk> aChunk) {
+ ran = true;
+ MOZ_RELEASE_ASSERT(!aChunk, "Second chunk request should always fail");
+ });
+ MOZ_RELEASE_ASSERT(ran, "RequestChunk callback not called");
+
+ // This one does nothing.
+ cm.ForgetUnreleasedChunks();
+
+ // Don't forget to mark chunk "Done" before letting it die.
+ chunk->MarkDone();
+ chunk = nullptr;
+
+ // Create a tiny chunk and reset the chunk manager with it.
+ chunk = ProfileBufferChunk::Create(1);
+ MOZ_RELEASE_ASSERT(!!chunk);
+ auto tinyChunkSize = chunk->BufferBytes();
+ MOZ_RELEASE_ASSERT(tinyChunkSize >= 1);
+ MOZ_RELEASE_ASSERT(tinyChunkSize < ChunkMinBufferBytes);
+ MOZ_RELEASE_ASSERT(chunk->RangeStart() == 0);
+ chunk->SetRangeStart(300);
+ MOZ_RELEASE_ASSERT(chunk->RangeStart() == 300);
+ cms.Reset(std::move(chunk));
+ MOZ_RELEASE_ASSERT(!chunk, "chunk UniquePtr should have been moved-from");
+ MOZ_RELEASE_ASSERT(cm.MaxTotalSize() == tinyChunkSize,
+ "MaxTotalSize() should match the new chunk size");
+ chunk = cm.GetChunk();
+ MOZ_RELEASE_ASSERT(chunk->RangeStart() == 0, "Got non-recycled chunk");
+
+ // Enough testing! Clean-up.
+ Unused << chunk->ReserveInitialBlockAsTail(0);
+ chunk->MarkDone();
+ cm.ForgetUnreleasedChunks();
+
+# ifdef DEBUG
+ cm.DeregisteredFrom(chunkManagerRegisterer);
+# endif // DEBUG
+
+ printf("TestChunkManagerSingle done\n");
+}
+
+static void TestChunkManagerWithLocalLimit() {
+ printf("TestChunkManagerWithLocalLimit...\n");
+
+ // Construct a ProfileBufferChunkManagerWithLocalLimit with chunk of minimum
+ // size >=100, up to 1000 bytes.
+ constexpr ProfileBufferChunk::Length MaxTotalBytes = 1000;
+ constexpr ProfileBufferChunk::Length ChunkMinBufferBytes = 100;
+ ProfileBufferChunkManagerWithLocalLimit cmll{MaxTotalBytes,
+ ChunkMinBufferBytes};
+
+ // Reference to base class, to exercize virtual methods.
+ ProfileBufferChunkManager& cm = cmll;
+
+# ifdef DEBUG
+ const char* chunkManagerRegisterer = "TestChunkManagerWithLocalLimit";
+ cm.RegisteredWith(chunkManagerRegisterer);
+# endif // DEBUG
+
+ MOZ_RELEASE_ASSERT(cm.MaxTotalSize() == MaxTotalBytes,
+ "Max total size should be exactly as given");
+
+ unsigned destroyedChunks = 0;
+ unsigned destroyedBytes = 0;
+ cm.SetChunkDestroyedCallback([&](const ProfileBufferChunk& aChunks) {
+ for (const ProfileBufferChunk* chunk = &aChunks; chunk;
+ chunk = chunk->GetNext()) {
+ destroyedChunks += 1;
+ destroyedBytes += chunk->BufferBytes();
+ }
+ });
+
+ UniquePtr<ProfileBufferChunk> extantReleasedChunks =
+ cm.GetExtantReleasedChunks();
+ MOZ_RELEASE_ASSERT(!extantReleasedChunks, "Unexpected released chunk(s)");
+
+ // First request.
+ UniquePtr<ProfileBufferChunk> chunk = cm.GetChunk();
+ MOZ_RELEASE_ASSERT(!!chunk,
+ "First chunk immediate request should always work");
+ const auto chunkActualBufferBytes = chunk->BufferBytes();
+ MOZ_RELEASE_ASSERT(chunkActualBufferBytes >= ChunkMinBufferBytes,
+ "Unexpected chunk size");
+ MOZ_RELEASE_ASSERT(!chunk->GetNext(), "There should only be one chunk");
+
+ // Keep address, for later checks.
+ const uintptr_t chunk1Address = reinterpret_cast<uintptr_t>(chunk.get());
+
+ extantReleasedChunks = cm.GetExtantReleasedChunks();
+ MOZ_RELEASE_ASSERT(!extantReleasedChunks, "Unexpected released chunk(s)");
+
+ // Verify that ReleaseChunk accepts zero chunks.
+ cm.ReleaseChunk(nullptr);
+ MOZ_RELEASE_ASSERT(!extantReleasedChunks, "Unexpected released chunk(s)");
+
+ // For this test, we need to be able to get at least 2 chunks without hitting
+ // the limit. (If this failed, it wouldn't necessary be a problem with
+ // ProfileBufferChunkManagerWithLocalLimit, fiddle with constants at the top
+ // of this test.)
+ MOZ_RELEASE_ASSERT(chunkActualBufferBytes < 2 * MaxTotalBytes);
+
+ unsigned chunk1ReuseCount = 0;
+
+ // We will do enough loops to go through the maximum size a number of times.
+ const unsigned Rollovers = 3;
+ const unsigned Loops = Rollovers * MaxTotalBytes / chunkActualBufferBytes;
+ for (unsigned i = 0; i < Loops; ++i) {
+ // Add some data to the chunk.
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetFirstBlock == 0);
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetPastLastBlock == 0);
+ MOZ_RELEASE_ASSERT(chunk->RangeStart() == 0);
+ const ProfileBufferIndex index = 1 + i * chunkActualBufferBytes;
+ chunk->SetRangeStart(index);
+ MOZ_RELEASE_ASSERT(chunk->RangeStart() == index);
+ Unused << chunk->ReserveInitialBlockAsTail(1);
+ Unused << chunk->ReserveBlock(2);
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetFirstBlock == 1);
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mOffsetPastLastBlock == 1 + 2);
+
+ // Request a new chunk.
+ bool ran = false;
+ UniquePtr<ProfileBufferChunk> newChunk;
+ cm.RequestChunk([&](UniquePtr<ProfileBufferChunk> aChunk) {
+ ran = true;
+ newChunk = std::move(aChunk);
+ });
+ MOZ_RELEASE_ASSERT(
+ !ran, "RequestChunk should not immediately fulfill the request");
+ cm.FulfillChunkRequests();
+ MOZ_RELEASE_ASSERT(ran, "FulfillChunkRequests should invoke the callback");
+ MOZ_RELEASE_ASSERT(!!newChunk, "Chunk request should always work");
+ MOZ_RELEASE_ASSERT(newChunk->BufferBytes() == chunkActualBufferBytes,
+ "Unexpected chunk size");
+ MOZ_RELEASE_ASSERT(!newChunk->GetNext(), "There should only be one chunk");
+
+ // Mark previous chunk done and release it.
+ WaitUntilTimeStampChanges(); // Force "done" timestamp to change.
+ chunk->MarkDone();
+ cm.ReleaseChunk(std::move(chunk));
+
+ // And cycle to the new chunk.
+ chunk = std::move(newChunk);
+
+ if (reinterpret_cast<uintptr_t>(chunk.get()) == chunk1Address) {
+ ++chunk1ReuseCount;
+ }
+ }
+
+ // Expect all rollovers except 1 to destroy chunks.
+ MOZ_RELEASE_ASSERT(destroyedChunks >= (Rollovers - 1) * MaxTotalBytes /
+ chunkActualBufferBytes,
+ "Not enough destroyed chunks");
+ MOZ_RELEASE_ASSERT(destroyedBytes == destroyedChunks * chunkActualBufferBytes,
+ "Mismatched destroyed chunks and bytes");
+ MOZ_RELEASE_ASSERT(chunk1ReuseCount >= (Rollovers - 1),
+ "Not enough reuse of the first chunks");
+
+ // Check that chunk manager is reentrant from request callback.
+ bool ran = false;
+ bool ranInner = false;
+ UniquePtr<ProfileBufferChunk> newChunk;
+ cm.RequestChunk([&](UniquePtr<ProfileBufferChunk> aChunk) {
+ ran = true;
+ MOZ_RELEASE_ASSERT(!!aChunk, "Chunk request should always work");
+ Unused << aChunk->ReserveInitialBlockAsTail(0);
+ WaitUntilTimeStampChanges(); // Force "done" timestamp to change.
+ aChunk->MarkDone();
+ UniquePtr<ProfileBufferChunk> anotherChunk = cm.GetChunk();
+ MOZ_RELEASE_ASSERT(!!anotherChunk);
+ Unused << anotherChunk->ReserveInitialBlockAsTail(0);
+ WaitUntilTimeStampChanges(); // Force "done" timestamp to change.
+ anotherChunk->MarkDone();
+ cm.RequestChunk([&](UniquePtr<ProfileBufferChunk> aChunk) {
+ ranInner = true;
+ MOZ_RELEASE_ASSERT(!!aChunk, "Chunk request should always work");
+ Unused << aChunk->ReserveInitialBlockAsTail(0);
+ WaitUntilTimeStampChanges(); // Force "done" timestamp to change.
+ aChunk->MarkDone();
+ });
+ MOZ_RELEASE_ASSERT(
+ !ranInner, "RequestChunk should not immediately fulfill the request");
+ });
+ MOZ_RELEASE_ASSERT(!ran,
+ "RequestChunk should not immediately fulfill the request");
+ MOZ_RELEASE_ASSERT(
+ !ranInner,
+ "RequestChunk should not immediately fulfill the inner request");
+ cm.FulfillChunkRequests();
+ MOZ_RELEASE_ASSERT(ran, "FulfillChunkRequests should invoke the callback");
+ MOZ_RELEASE_ASSERT(!ranInner,
+ "FulfillChunkRequests should not immediately fulfill "
+ "the inner request");
+ cm.FulfillChunkRequests();
+ MOZ_RELEASE_ASSERT(
+ ran, "2nd FulfillChunkRequests should invoke the inner request callback");
+
+ // Enough testing! Clean-up.
+ Unused << chunk->ReserveInitialBlockAsTail(0);
+ WaitUntilTimeStampChanges(); // Force "done" timestamp to change.
+ chunk->MarkDone();
+ cm.ForgetUnreleasedChunks();
+
+ // Special testing of the release algorithm, to make sure released chunks get
+ // sorted.
+ constexpr unsigned RandomReleaseChunkLoop = 100;
+ // Build a vector of chunks, and mark them "done", ready to be released.
+ Vector<UniquePtr<ProfileBufferChunk>> chunksToRelease;
+ MOZ_RELEASE_ASSERT(chunksToRelease.reserve(RandomReleaseChunkLoop));
+ Vector<TimeStamp> chunksTimeStamps;
+ MOZ_RELEASE_ASSERT(chunksTimeStamps.reserve(RandomReleaseChunkLoop));
+ for (unsigned i = 0; i < RandomReleaseChunkLoop; ++i) {
+ UniquePtr<ProfileBufferChunk> chunk = cm.GetChunk();
+ MOZ_RELEASE_ASSERT(chunk);
+ Unused << chunk->ReserveInitialBlockAsTail(0);
+ chunk->MarkDone();
+ MOZ_RELEASE_ASSERT(!chunk->ChunkHeader().mDoneTimeStamp.IsNull());
+ chunksTimeStamps.infallibleEmplaceBack(chunk->ChunkHeader().mDoneTimeStamp);
+ chunksToRelease.infallibleEmplaceBack(std::move(chunk));
+ if (i % 10 == 0) {
+ // "Done" timestamps should *usually* increase, let's make extra sure some
+ // timestamps are actually different.
+ WaitUntilTimeStampChanges();
+ }
+ }
+ // Shuffle the list.
+ std::random_device randomDevice;
+ std::mt19937 generator(randomDevice());
+ std::shuffle(chunksToRelease.begin(), chunksToRelease.end(), generator);
+ // And release chunks one by one, checking that the list of released chunks
+ // is always sorted.
+ printf("TestChunkManagerWithLocalLimit - Shuffle test timestamps:");
+ for (unsigned i = 0; i < RandomReleaseChunkLoop; ++i) {
+ printf(" %f", (chunksToRelease[i]->ChunkHeader().mDoneTimeStamp -
+ TimeStamp::ProcessCreation())
+ .ToMicroseconds());
+ cm.ReleaseChunk(std::move(chunksToRelease[i]));
+ cm.PeekExtantReleasedChunks([i](const ProfileBufferChunk* releasedChunks) {
+ MOZ_RELEASE_ASSERT(releasedChunks);
+ unsigned releasedChunkCount = 1;
+ for (;;) {
+ const ProfileBufferChunk* nextChunk = releasedChunks->GetNext();
+ if (!nextChunk) {
+ break;
+ }
+ ++releasedChunkCount;
+ MOZ_RELEASE_ASSERT(releasedChunks->ChunkHeader().mDoneTimeStamp <=
+ nextChunk->ChunkHeader().mDoneTimeStamp);
+ releasedChunks = nextChunk;
+ }
+ MOZ_RELEASE_ASSERT(releasedChunkCount == i + 1);
+ });
+ }
+ printf("\n");
+ // Finally, the whole list of released chunks should have the exact same
+ // timestamps as the initial list of "done" chunks.
+ extantReleasedChunks = cm.GetExtantReleasedChunks();
+ for (unsigned i = 0; i < RandomReleaseChunkLoop; ++i) {
+ MOZ_RELEASE_ASSERT(extantReleasedChunks, "Not enough released chunks");
+ MOZ_RELEASE_ASSERT(extantReleasedChunks->ChunkHeader().mDoneTimeStamp ==
+ chunksTimeStamps[i]);
+ Unused << std::exchange(extantReleasedChunks,
+ extantReleasedChunks->ReleaseNext());
+ }
+ MOZ_RELEASE_ASSERT(!extantReleasedChunks, "Too many released chunks");
+
+# ifdef DEBUG
+ cm.DeregisteredFrom(chunkManagerRegisterer);
+# endif // DEBUG
+
+ printf("TestChunkManagerWithLocalLimit done\n");
+}
+
+static bool IsSameMetadata(
+ const ProfileBufferControlledChunkManager::ChunkMetadata& a1,
+ const ProfileBufferControlledChunkManager::ChunkMetadata& a2) {
+ return a1.mDoneTimeStamp == a2.mDoneTimeStamp &&
+ a1.mBufferBytes == a2.mBufferBytes;
+};
+
+static bool IsSameUpdate(
+ const ProfileBufferControlledChunkManager::Update& a1,
+ const ProfileBufferControlledChunkManager::Update& a2) {
+ // Final and not-an-update don't carry other data, so we can test these two
+ // states first.
+ if (a1.IsFinal() || a2.IsFinal()) {
+ return a1.IsFinal() && a2.IsFinal();
+ }
+ if (a1.IsNotUpdate() || a2.IsNotUpdate()) {
+ return a1.IsNotUpdate() && a2.IsNotUpdate();
+ }
+
+ // Here, both are "normal" udpates, check member variables:
+
+ if (a1.UnreleasedBytes() != a2.UnreleasedBytes()) {
+ return false;
+ }
+ if (a1.ReleasedBytes() != a2.ReleasedBytes()) {
+ return false;
+ }
+ if (a1.OldestDoneTimeStamp() != a2.OldestDoneTimeStamp()) {
+ return false;
+ }
+ if (a1.NewlyReleasedChunksRef().size() !=
+ a2.NewlyReleasedChunksRef().size()) {
+ return false;
+ }
+ for (unsigned i = 0; i < a1.NewlyReleasedChunksRef().size(); ++i) {
+ if (!IsSameMetadata(a1.NewlyReleasedChunksRef()[i],
+ a2.NewlyReleasedChunksRef()[i])) {
+ return false;
+ }
+ }
+ return true;
+}
+
+static void TestControlledChunkManagerUpdate() {
+ printf("TestControlledChunkManagerUpdate...\n");
+
+ using Update = ProfileBufferControlledChunkManager::Update;
+
+ // Default construction.
+ Update update1;
+ MOZ_RELEASE_ASSERT(update1.IsNotUpdate());
+ MOZ_RELEASE_ASSERT(!update1.IsFinal());
+
+ // Clear an already-cleared update.
+ update1.Clear();
+ MOZ_RELEASE_ASSERT(update1.IsNotUpdate());
+ MOZ_RELEASE_ASSERT(!update1.IsFinal());
+
+ // Final construction with nullptr.
+ const Update final(nullptr);
+ MOZ_RELEASE_ASSERT(final.IsFinal());
+ MOZ_RELEASE_ASSERT(!final.IsNotUpdate());
+
+ // Copy final to cleared.
+ update1 = final;
+ MOZ_RELEASE_ASSERT(update1.IsFinal());
+ MOZ_RELEASE_ASSERT(!update1.IsNotUpdate());
+
+ // Copy final to final.
+ update1 = final;
+ MOZ_RELEASE_ASSERT(update1.IsFinal());
+ MOZ_RELEASE_ASSERT(!update1.IsNotUpdate());
+
+ // Clear a final update.
+ update1.Clear();
+ MOZ_RELEASE_ASSERT(update1.IsNotUpdate());
+ MOZ_RELEASE_ASSERT(!update1.IsFinal());
+
+ // Move final to cleared.
+ update1 = Update(nullptr);
+ MOZ_RELEASE_ASSERT(update1.IsFinal());
+ MOZ_RELEASE_ASSERT(!update1.IsNotUpdate());
+
+ // Move final to final.
+ update1 = Update(nullptr);
+ MOZ_RELEASE_ASSERT(update1.IsFinal());
+ MOZ_RELEASE_ASSERT(!update1.IsNotUpdate());
+
+ // Move from not-an-update (effectively same as Clear).
+ update1 = Update();
+ MOZ_RELEASE_ASSERT(update1.IsNotUpdate());
+ MOZ_RELEASE_ASSERT(!update1.IsFinal());
+
+ auto CreateBiggerChunkAfter = [](const ProfileBufferChunk& aChunkToBeat) {
+ while (TimeStamp::Now() <= aChunkToBeat.ChunkHeader().mDoneTimeStamp) {
+ ::SleepMilli(1);
+ }
+ auto chunk = ProfileBufferChunk::Create(aChunkToBeat.BufferBytes() * 2);
+ MOZ_RELEASE_ASSERT(!!chunk);
+ MOZ_RELEASE_ASSERT(chunk->BufferBytes() >= aChunkToBeat.BufferBytes() * 2);
+ Unused << chunk->ReserveInitialBlockAsTail(0);
+ chunk->MarkDone();
+ MOZ_RELEASE_ASSERT(chunk->ChunkHeader().mDoneTimeStamp >
+ aChunkToBeat.ChunkHeader().mDoneTimeStamp);
+ return chunk;
+ };
+
+ update1 = Update(1, 2, nullptr, nullptr);
+
+ // Create initial update with 2 released chunks and 1 unreleased chunk.
+ auto released = ProfileBufferChunk::Create(10);
+ ProfileBufferChunk* c1 = released.get();
+ Unused << c1->ReserveInitialBlockAsTail(0);
+ c1->MarkDone();
+
+ released->SetLast(CreateBiggerChunkAfter(*c1));
+ ProfileBufferChunk* c2 = c1->GetNext();
+
+ auto unreleased = CreateBiggerChunkAfter(*c2);
+ ProfileBufferChunk* c3 = unreleased.get();
+
+ Update update2(c3->BufferBytes(), c1->BufferBytes() + c2->BufferBytes(), c1,
+ c1);
+ MOZ_RELEASE_ASSERT(IsSameUpdate(
+ update2,
+ Update(c3->BufferBytes(), c1->BufferBytes() + c2->BufferBytes(),
+ c1->ChunkHeader().mDoneTimeStamp,
+ {{c1->ChunkHeader().mDoneTimeStamp, c1->BufferBytes()},
+ {c2->ChunkHeader().mDoneTimeStamp, c2->BufferBytes()}})));
+ // Check every field, this time only, after that we'll trust that the
+ // `SameUpdate` test will be enough.
+ MOZ_RELEASE_ASSERT(!update2.IsNotUpdate());
+ MOZ_RELEASE_ASSERT(!update2.IsFinal());
+ MOZ_RELEASE_ASSERT(update2.UnreleasedBytes() == c3->BufferBytes());
+ MOZ_RELEASE_ASSERT(update2.ReleasedBytes() ==
+ c1->BufferBytes() + c2->BufferBytes());
+ MOZ_RELEASE_ASSERT(update2.OldestDoneTimeStamp() ==
+ c1->ChunkHeader().mDoneTimeStamp);
+ MOZ_RELEASE_ASSERT(update2.NewlyReleasedChunksRef().size() == 2);
+ MOZ_RELEASE_ASSERT(
+ IsSameMetadata(update2.NewlyReleasedChunksRef()[0],
+ {c1->ChunkHeader().mDoneTimeStamp, c1->BufferBytes()}));
+ MOZ_RELEASE_ASSERT(
+ IsSameMetadata(update2.NewlyReleasedChunksRef()[1],
+ {c2->ChunkHeader().mDoneTimeStamp, c2->BufferBytes()}));
+
+ // Fold into not-an-update.
+ update1.Fold(std::move(update2));
+ MOZ_RELEASE_ASSERT(IsSameUpdate(
+ update1,
+ Update(c3->BufferBytes(), c1->BufferBytes() + c2->BufferBytes(),
+ c1->ChunkHeader().mDoneTimeStamp,
+ {{c1->ChunkHeader().mDoneTimeStamp, c1->BufferBytes()},
+ {c2->ChunkHeader().mDoneTimeStamp, c2->BufferBytes()}})));
+
+ // Pretend nothing happened.
+ update2 = Update(c3->BufferBytes(), c1->BufferBytes() + c2->BufferBytes(), c1,
+ nullptr);
+ MOZ_RELEASE_ASSERT(IsSameUpdate(
+ update2, Update(c3->BufferBytes(), c1->BufferBytes() + c2->BufferBytes(),
+ c1->ChunkHeader().mDoneTimeStamp, {})));
+ update1.Fold(std::move(update2));
+ MOZ_RELEASE_ASSERT(IsSameUpdate(
+ update1,
+ Update(c3->BufferBytes(), c1->BufferBytes() + c2->BufferBytes(),
+ c1->ChunkHeader().mDoneTimeStamp,
+ {{c1->ChunkHeader().mDoneTimeStamp, c1->BufferBytes()},
+ {c2->ChunkHeader().mDoneTimeStamp, c2->BufferBytes()}})));
+
+ // Pretend there's a new unreleased chunk.
+ c3->SetLast(CreateBiggerChunkAfter(*c3));
+ ProfileBufferChunk* c4 = c3->GetNext();
+ update2 = Update(c3->BufferBytes() + c4->BufferBytes(),
+ c1->BufferBytes() + c2->BufferBytes(), c1, nullptr);
+ MOZ_RELEASE_ASSERT(
+ IsSameUpdate(update2, Update(c3->BufferBytes() + c4->BufferBytes(),
+ c1->BufferBytes() + c2->BufferBytes(),
+ c1->ChunkHeader().mDoneTimeStamp, {})));
+ update1.Fold(std::move(update2));
+ MOZ_RELEASE_ASSERT(IsSameUpdate(
+ update1,
+ Update(c3->BufferBytes() + c4->BufferBytes(),
+ c1->BufferBytes() + c2->BufferBytes(),
+ c1->ChunkHeader().mDoneTimeStamp,
+ {{c1->ChunkHeader().mDoneTimeStamp, c1->BufferBytes()},
+ {c2->ChunkHeader().mDoneTimeStamp, c2->BufferBytes()}})));
+
+ // Pretend the first unreleased chunk c3 has been released.
+ released->SetLast(std::exchange(unreleased, unreleased->ReleaseNext()));
+ update2 =
+ Update(c4->BufferBytes(),
+ c1->BufferBytes() + c2->BufferBytes() + c3->BufferBytes(), c1, c3);
+ MOZ_RELEASE_ASSERT(IsSameUpdate(
+ update2,
+ Update(c4->BufferBytes(),
+ c1->BufferBytes() + c2->BufferBytes() + c3->BufferBytes(),
+ c1->ChunkHeader().mDoneTimeStamp,
+ {{c3->ChunkHeader().mDoneTimeStamp, c3->BufferBytes()}})));
+ update1.Fold(std::move(update2));
+ MOZ_RELEASE_ASSERT(IsSameUpdate(
+ update1,
+ Update(c4->BufferBytes(),
+ c1->BufferBytes() + c2->BufferBytes() + c3->BufferBytes(),
+ c1->ChunkHeader().mDoneTimeStamp,
+ {{c1->ChunkHeader().mDoneTimeStamp, c1->BufferBytes()},
+ {c2->ChunkHeader().mDoneTimeStamp, c2->BufferBytes()},
+ {c3->ChunkHeader().mDoneTimeStamp, c3->BufferBytes()}})));
+
+ // Pretend c1 has been destroyed, so the oldest timestamp is now at c2.
+ released = released->ReleaseNext();
+ c1 = nullptr;
+ update2 = Update(c4->BufferBytes(), c2->BufferBytes() + c3->BufferBytes(), c2,
+ nullptr);
+ MOZ_RELEASE_ASSERT(IsSameUpdate(
+ update2, Update(c4->BufferBytes(), c2->BufferBytes() + c3->BufferBytes(),
+ c2->ChunkHeader().mDoneTimeStamp, {})));
+ update1.Fold(std::move(update2));
+ MOZ_RELEASE_ASSERT(IsSameUpdate(
+ update1,
+ Update(c4->BufferBytes(), c2->BufferBytes() + c3->BufferBytes(),
+ c2->ChunkHeader().mDoneTimeStamp,
+ {{c2->ChunkHeader().mDoneTimeStamp, c2->BufferBytes()},
+ {c3->ChunkHeader().mDoneTimeStamp, c3->BufferBytes()}})));
+
+ // Pretend c2 has been recycled to make unreleased c5, and c4 has been
+ // released.
+ auto recycled = std::exchange(released, released->ReleaseNext());
+ recycled->MarkRecycled();
+ Unused << recycled->ReserveInitialBlockAsTail(0);
+ recycled->MarkDone();
+ released->SetLast(std::move(unreleased));
+ unreleased = std::move(recycled);
+ ProfileBufferChunk* c5 = c2;
+ c2 = nullptr;
+ update2 =
+ Update(c5->BufferBytes(), c3->BufferBytes() + c4->BufferBytes(), c3, c4);
+ MOZ_RELEASE_ASSERT(IsSameUpdate(
+ update2,
+ Update(c5->BufferBytes(), c3->BufferBytes() + c4->BufferBytes(),
+ c3->ChunkHeader().mDoneTimeStamp,
+ {{c4->ChunkHeader().mDoneTimeStamp, c4->BufferBytes()}})));
+ update1.Fold(std::move(update2));
+ MOZ_RELEASE_ASSERT(IsSameUpdate(
+ update1,
+ Update(c5->BufferBytes(), c3->BufferBytes() + c4->BufferBytes(),
+ c3->ChunkHeader().mDoneTimeStamp,
+ {{c3->ChunkHeader().mDoneTimeStamp, c3->BufferBytes()},
+ {c4->ChunkHeader().mDoneTimeStamp, c4->BufferBytes()}})));
+
+ // And send a final update.
+ update1.Fold(Update(nullptr));
+ MOZ_RELEASE_ASSERT(update1.IsFinal());
+ MOZ_RELEASE_ASSERT(!update1.IsNotUpdate());
+
+ printf("TestControlledChunkManagerUpdate done\n");
+}
+
+static void TestControlledChunkManagerWithLocalLimit() {
+ printf("TestControlledChunkManagerWithLocalLimit...\n");
+
+ // Construct a ProfileBufferChunkManagerWithLocalLimit with chunk of minimum
+ // size >=100, up to 1000 bytes.
+ constexpr ProfileBufferChunk::Length MaxTotalBytes = 1000;
+ constexpr ProfileBufferChunk::Length ChunkMinBufferBytes = 100;
+ ProfileBufferChunkManagerWithLocalLimit cmll{MaxTotalBytes,
+ ChunkMinBufferBytes};
+
+ // Reference to chunk manager base class.
+ ProfileBufferChunkManager& cm = cmll;
+
+ // Reference to controlled chunk manager base class.
+ ProfileBufferControlledChunkManager& ccm = cmll;
+
+# ifdef DEBUG
+ const char* chunkManagerRegisterer =
+ "TestControlledChunkManagerWithLocalLimit";
+ cm.RegisteredWith(chunkManagerRegisterer);
+# endif // DEBUG
+
+ MOZ_RELEASE_ASSERT(cm.MaxTotalSize() == MaxTotalBytes,
+ "Max total size should be exactly as given");
+
+ unsigned destroyedChunks = 0;
+ unsigned destroyedBytes = 0;
+ cm.SetChunkDestroyedCallback([&](const ProfileBufferChunk& aChunks) {
+ for (const ProfileBufferChunk* chunk = &aChunks; chunk;
+ chunk = chunk->GetNext()) {
+ destroyedChunks += 1;
+ destroyedBytes += chunk->BufferBytes();
+ }
+ });
+
+ using Update = ProfileBufferControlledChunkManager::Update;
+ unsigned updateCount = 0;
+ ProfileBufferControlledChunkManager::Update update;
+ MOZ_RELEASE_ASSERT(update.IsNotUpdate());
+ auto updateCallback = [&](Update&& aUpdate) {
+ ++updateCount;
+ update.Fold(std::move(aUpdate));
+ };
+ ccm.SetUpdateCallback(updateCallback);
+ MOZ_RELEASE_ASSERT(updateCount == 1,
+ "SetUpdateCallback should have triggered an update");
+ MOZ_RELEASE_ASSERT(IsSameUpdate(update, Update(0, 0, TimeStamp{}, {})));
+ updateCount = 0;
+ update.Clear();
+
+ UniquePtr<ProfileBufferChunk> extantReleasedChunks =
+ cm.GetExtantReleasedChunks();
+ MOZ_RELEASE_ASSERT(!extantReleasedChunks, "Unexpected released chunk(s)");
+ MOZ_RELEASE_ASSERT(updateCount == 1,
+ "GetExtantReleasedChunks should have triggered an update");
+ MOZ_RELEASE_ASSERT(IsSameUpdate(update, Update(0, 0, TimeStamp{}, {})));
+ updateCount = 0;
+ update.Clear();
+
+ // First request.
+ UniquePtr<ProfileBufferChunk> chunk = cm.GetChunk();
+ MOZ_RELEASE_ASSERT(!!chunk,
+ "First chunk immediate request should always work");
+ const auto chunkActualBufferBytes = chunk->BufferBytes();
+ MOZ_RELEASE_ASSERT(updateCount == 1,
+ "GetChunk should have triggered an update");
+ MOZ_RELEASE_ASSERT(
+ IsSameUpdate(update, Update(chunk->BufferBytes(), 0, TimeStamp{}, {})));
+ updateCount = 0;
+ update.Clear();
+
+ extantReleasedChunks = cm.GetExtantReleasedChunks();
+ MOZ_RELEASE_ASSERT(!extantReleasedChunks, "Unexpected released chunk(s)");
+ MOZ_RELEASE_ASSERT(updateCount == 1,
+ "GetExtantReleasedChunks should have triggered an update");
+ MOZ_RELEASE_ASSERT(
+ IsSameUpdate(update, Update(chunk->BufferBytes(), 0, TimeStamp{}, {})));
+ updateCount = 0;
+ update.Clear();
+
+ // For this test, we need to be able to get at least 2 chunks without hitting
+ // the limit. (If this failed, it wouldn't necessary be a problem with
+ // ProfileBufferChunkManagerWithLocalLimit, fiddle with constants at the top
+ // of this test.)
+ MOZ_RELEASE_ASSERT(chunkActualBufferBytes < 2 * MaxTotalBytes);
+
+ ProfileBufferChunk::Length previousUnreleasedBytes = chunk->BufferBytes();
+ ProfileBufferChunk::Length previousReleasedBytes = 0;
+ TimeStamp previousOldestDoneTimeStamp;
+
+ // We will do enough loops to go through the maximum size a number of times.
+ const unsigned Rollovers = 3;
+ const unsigned Loops = Rollovers * MaxTotalBytes / chunkActualBufferBytes;
+ for (unsigned i = 0; i < Loops; ++i) {
+ // Add some data to the chunk.
+ const ProfileBufferIndex index =
+ ProfileBufferIndex(chunkActualBufferBytes) * i + 1;
+ chunk->SetRangeStart(index);
+ Unused << chunk->ReserveInitialBlockAsTail(1);
+ Unused << chunk->ReserveBlock(2);
+
+ // Request a new chunk.
+ UniquePtr<ProfileBufferChunk> newChunk;
+ cm.RequestChunk([&](UniquePtr<ProfileBufferChunk> aChunk) {
+ newChunk = std::move(aChunk);
+ });
+ MOZ_RELEASE_ASSERT(updateCount == 0,
+ "RequestChunk() shouldn't have triggered an update");
+ cm.FulfillChunkRequests();
+ MOZ_RELEASE_ASSERT(!!newChunk, "Chunk request should always work");
+ MOZ_RELEASE_ASSERT(newChunk->BufferBytes() == chunkActualBufferBytes,
+ "Unexpected chunk size");
+ MOZ_RELEASE_ASSERT(!newChunk->GetNext(), "There should only be one chunk");
+
+ MOZ_RELEASE_ASSERT(updateCount == 1,
+ "FulfillChunkRequests() after a request should have "
+ "triggered an update");
+ MOZ_RELEASE_ASSERT(!update.IsFinal());
+ MOZ_RELEASE_ASSERT(!update.IsNotUpdate());
+ MOZ_RELEASE_ASSERT(update.UnreleasedBytes() ==
+ previousUnreleasedBytes + newChunk->BufferBytes());
+ previousUnreleasedBytes = update.UnreleasedBytes();
+ MOZ_RELEASE_ASSERT(update.ReleasedBytes() <= previousReleasedBytes);
+ previousReleasedBytes = update.ReleasedBytes();
+ MOZ_RELEASE_ASSERT(previousOldestDoneTimeStamp.IsNull() ||
+ update.OldestDoneTimeStamp() >=
+ previousOldestDoneTimeStamp);
+ previousOldestDoneTimeStamp = update.OldestDoneTimeStamp();
+ MOZ_RELEASE_ASSERT(update.NewlyReleasedChunksRef().empty());
+ updateCount = 0;
+ update.Clear();
+
+ // Make sure the "Done" timestamp below cannot be the same as from the
+ // previous loop.
+ const TimeStamp now = TimeStamp::Now();
+ while (TimeStamp::Now() == now) {
+ ::SleepMilli(1);
+ }
+
+ // Mark previous chunk done and release it.
+ WaitUntilTimeStampChanges(); // Force "done" timestamp to change.
+ chunk->MarkDone();
+ const auto doneTimeStamp = chunk->ChunkHeader().mDoneTimeStamp;
+ const auto bufferBytes = chunk->BufferBytes();
+ cm.ReleaseChunk(std::move(chunk));
+
+ MOZ_RELEASE_ASSERT(updateCount == 1,
+ "ReleaseChunk() should have triggered an update");
+ MOZ_RELEASE_ASSERT(!update.IsFinal());
+ MOZ_RELEASE_ASSERT(!update.IsNotUpdate());
+ MOZ_RELEASE_ASSERT(update.UnreleasedBytes() ==
+ previousUnreleasedBytes - bufferBytes);
+ previousUnreleasedBytes = update.UnreleasedBytes();
+ MOZ_RELEASE_ASSERT(update.ReleasedBytes() ==
+ previousReleasedBytes + bufferBytes);
+ previousReleasedBytes = update.ReleasedBytes();
+ MOZ_RELEASE_ASSERT(previousOldestDoneTimeStamp.IsNull() ||
+ update.OldestDoneTimeStamp() >=
+ previousOldestDoneTimeStamp);
+ previousOldestDoneTimeStamp = update.OldestDoneTimeStamp();
+ MOZ_RELEASE_ASSERT(update.OldestDoneTimeStamp() <= doneTimeStamp);
+ MOZ_RELEASE_ASSERT(update.NewlyReleasedChunksRef().size() == 1);
+ MOZ_RELEASE_ASSERT(update.NewlyReleasedChunksRef()[0].mDoneTimeStamp ==
+ doneTimeStamp);
+ MOZ_RELEASE_ASSERT(update.NewlyReleasedChunksRef()[0].mBufferBytes ==
+ bufferBytes);
+ updateCount = 0;
+ update.Clear();
+
+ // And cycle to the new chunk.
+ chunk = std::move(newChunk);
+ }
+
+ // Enough testing! Clean-up.
+ Unused << chunk->ReserveInitialBlockAsTail(0);
+ chunk->MarkDone();
+ cm.ForgetUnreleasedChunks();
+ MOZ_RELEASE_ASSERT(
+ updateCount == 1,
+ "ForgetUnreleasedChunks() should have triggered an update");
+ MOZ_RELEASE_ASSERT(!update.IsFinal());
+ MOZ_RELEASE_ASSERT(!update.IsNotUpdate());
+ MOZ_RELEASE_ASSERT(update.UnreleasedBytes() == 0);
+ MOZ_RELEASE_ASSERT(update.ReleasedBytes() == previousReleasedBytes);
+ MOZ_RELEASE_ASSERT(update.NewlyReleasedChunksRef().empty() == 1);
+ updateCount = 0;
+ update.Clear();
+
+ ccm.SetUpdateCallback({});
+ MOZ_RELEASE_ASSERT(updateCount == 1,
+ "SetUpdateCallback({}) should have triggered an update");
+ MOZ_RELEASE_ASSERT(update.IsFinal());
+
+# ifdef DEBUG
+ cm.DeregisteredFrom(chunkManagerRegisterer);
+# endif // DEBUG
+
+ printf("TestControlledChunkManagerWithLocalLimit done\n");
+}
+
+# define VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED( \
+ aProfileChunkedBuffer, aStart, aEnd, aPushed, aCleared, aFailed) \
+ { \
+ ProfileChunkedBuffer::State state = (aProfileChunkedBuffer).GetState(); \
+ MOZ_RELEASE_ASSERT(state.mRangeStart == (aStart)); \
+ MOZ_RELEASE_ASSERT(state.mRangeEnd == (aEnd)); \
+ MOZ_RELEASE_ASSERT(state.mPushedBlockCount == (aPushed)); \
+ MOZ_RELEASE_ASSERT(state.mClearedBlockCount == (aCleared)); \
+ MOZ_RELEASE_ASSERT(state.mFailedPutBytes == (aFailed)); \
+ }
+
+static void TestChunkedBuffer() {
+ printf("TestChunkedBuffer...\n");
+
+ ProfileBufferBlockIndex blockIndex;
+ MOZ_RELEASE_ASSERT(!blockIndex);
+ MOZ_RELEASE_ASSERT(blockIndex == nullptr);
+
+ // Create an out-of-session ProfileChunkedBuffer.
+ ProfileChunkedBuffer cb(ProfileChunkedBuffer::ThreadSafety::WithMutex);
+
+ MOZ_RELEASE_ASSERT(cb.BufferLength().isNothing());
+
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, 1, 1, 0, 0, 0);
+
+ int result = 0;
+ result = cb.ReserveAndPut(
+ []() {
+ MOZ_RELEASE_ASSERT(false);
+ return 1;
+ },
+ [](Maybe<ProfileBufferEntryWriter>& aEW) { return aEW ? 2 : 3; });
+ MOZ_RELEASE_ASSERT(result == 3);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, 1, 1, 0, 0, 0);
+
+ result = 0;
+ result = cb.Put(
+ 1, [](Maybe<ProfileBufferEntryWriter>& aEW) { return aEW ? 1 : 2; });
+ MOZ_RELEASE_ASSERT(result == 2);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, 1, 1, 0, 0, 0);
+
+ blockIndex = cb.PutFrom(&result, 1);
+ MOZ_RELEASE_ASSERT(!blockIndex);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, 1, 1, 0, 0, 0);
+
+ blockIndex = cb.PutObjects(123, result, "hello");
+ MOZ_RELEASE_ASSERT(!blockIndex);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, 1, 1, 0, 0, 0);
+
+ blockIndex = cb.PutObject(123);
+ MOZ_RELEASE_ASSERT(!blockIndex);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, 1, 1, 0, 0, 0);
+
+ auto chunks = cb.GetAllChunks();
+ static_assert(std::is_same_v<decltype(chunks), UniquePtr<ProfileBufferChunk>>,
+ "ProfileChunkedBuffer::GetAllChunks() should return a "
+ "UniquePtr<ProfileBufferChunk>");
+ MOZ_RELEASE_ASSERT(!chunks, "Expected no chunks when out-of-session");
+
+ bool ran = false;
+ result = 0;
+ result = cb.Read([&](ProfileChunkedBuffer::Reader* aReader) {
+ ran = true;
+ MOZ_RELEASE_ASSERT(!aReader);
+ return 3;
+ });
+ MOZ_RELEASE_ASSERT(ran);
+ MOZ_RELEASE_ASSERT(result == 3);
+
+ cb.ReadEach([](ProfileBufferEntryReader&) { MOZ_RELEASE_ASSERT(false); });
+
+ result = 0;
+ result = cb.ReadAt(nullptr, [](Maybe<ProfileBufferEntryReader>&& er) {
+ MOZ_RELEASE_ASSERT(er.isNothing());
+ return 4;
+ });
+ MOZ_RELEASE_ASSERT(result == 4);
+
+ // Use ProfileBufferChunkManagerWithLocalLimit, which will give away
+ // ProfileBufferChunks that can contain 128 bytes, using up to 1KB of memory
+ // (including usable 128 bytes and headers).
+ constexpr size_t bufferMaxSize = 1024;
+ constexpr ProfileChunkedBuffer::Length chunkMinSize = 128;
+ ProfileBufferChunkManagerWithLocalLimit cm(bufferMaxSize, chunkMinSize);
+ cb.SetChunkManager(cm);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, 1, 1, 0, 0, 0);
+
+ // Let the chunk manager fulfill the initial request for an extra chunk.
+ cm.FulfillChunkRequests();
+
+ MOZ_RELEASE_ASSERT(cm.MaxTotalSize() == bufferMaxSize);
+ MOZ_RELEASE_ASSERT(cb.BufferLength().isSome());
+ MOZ_RELEASE_ASSERT(*cb.BufferLength() == bufferMaxSize);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, 1, 1, 0, 0, 0);
+
+ // Write an int with the main `ReserveAndPut` function.
+ const int test = 123;
+ ran = false;
+ blockIndex = nullptr;
+ bool success = cb.ReserveAndPut(
+ []() { return sizeof(test); },
+ [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ ran = true;
+ if (!aEW) {
+ return false;
+ }
+ blockIndex = aEW->CurrentBlockIndex();
+ MOZ_RELEASE_ASSERT(aEW->RemainingBytes() == sizeof(test));
+ aEW->WriteObject(test);
+ MOZ_RELEASE_ASSERT(aEW->RemainingBytes() == 0);
+ return true;
+ });
+ MOZ_RELEASE_ASSERT(ran);
+ MOZ_RELEASE_ASSERT(success);
+ MOZ_RELEASE_ASSERT(blockIndex.ConvertToProfileBufferIndex() == 1);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(
+ cb, 1, 1 + ULEB128Size(sizeof(test)) + sizeof(test), 1, 0, 0);
+
+ ran = false;
+ result = 0;
+ result = cb.Read([&](ProfileChunkedBuffer::Reader* aReader) {
+ ran = true;
+ MOZ_RELEASE_ASSERT(!!aReader);
+ // begin() and end() should be at the range edges (verified above).
+ MOZ_RELEASE_ASSERT(
+ aReader->begin().CurrentBlockIndex().ConvertToProfileBufferIndex() ==
+ 1);
+ MOZ_RELEASE_ASSERT(
+ aReader->end().CurrentBlockIndex().ConvertToProfileBufferIndex() == 0);
+ // Null ProfileBufferBlockIndex clamped to the beginning.
+ MOZ_RELEASE_ASSERT(aReader->At(nullptr) == aReader->begin());
+ MOZ_RELEASE_ASSERT(aReader->At(blockIndex) == aReader->begin());
+ // At(begin) same as begin().
+ MOZ_RELEASE_ASSERT(aReader->At(aReader->begin().CurrentBlockIndex()) ==
+ aReader->begin());
+ // At(past block) same as end().
+ MOZ_RELEASE_ASSERT(
+ aReader->At(ProfileBufferBlockIndex::CreateFromProfileBufferIndex(
+ 1 + 1 + sizeof(test))) == aReader->end());
+
+ size_t read = 0;
+ aReader->ForEach([&](ProfileBufferEntryReader& er) {
+ ++read;
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == sizeof(test));
+ const auto value = er.ReadObject<decltype(test)>();
+ MOZ_RELEASE_ASSERT(value == test);
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == 0);
+ });
+ MOZ_RELEASE_ASSERT(read == 1);
+
+ read = 0;
+ for (auto er : *aReader) {
+ static_assert(std::is_same_v<decltype(er), ProfileBufferEntryReader>,
+ "ProfileChunkedBuffer::Reader range-for should produce "
+ "ProfileBufferEntryReader objects");
+ ++read;
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == sizeof(test));
+ const auto value = er.ReadObject<decltype(test)>();
+ MOZ_RELEASE_ASSERT(value == test);
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == 0);
+ };
+ MOZ_RELEASE_ASSERT(read == 1);
+ return 5;
+ });
+ MOZ_RELEASE_ASSERT(ran);
+ MOZ_RELEASE_ASSERT(result == 5);
+
+ // Read the int directly from the ProfileChunkedBuffer, without block index.
+ size_t read = 0;
+ cb.ReadEach([&](ProfileBufferEntryReader& er) {
+ ++read;
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == sizeof(test));
+ const auto value = er.ReadObject<decltype(test)>();
+ MOZ_RELEASE_ASSERT(value == test);
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == 0);
+ });
+ MOZ_RELEASE_ASSERT(read == 1);
+
+ // Read the int directly from the ProfileChunkedBuffer, with block index.
+ read = 0;
+ blockIndex = nullptr;
+ cb.ReadEach(
+ [&](ProfileBufferEntryReader& er, ProfileBufferBlockIndex aBlockIndex) {
+ ++read;
+ MOZ_RELEASE_ASSERT(!!aBlockIndex);
+ MOZ_RELEASE_ASSERT(!blockIndex);
+ blockIndex = aBlockIndex;
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == sizeof(test));
+ const auto value = er.ReadObject<decltype(test)>();
+ MOZ_RELEASE_ASSERT(value == test);
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == 0);
+ });
+ MOZ_RELEASE_ASSERT(read == 1);
+ MOZ_RELEASE_ASSERT(!!blockIndex);
+ MOZ_RELEASE_ASSERT(blockIndex != nullptr);
+
+ // Read the int from its block index.
+ read = 0;
+ result = 0;
+ result = cb.ReadAt(blockIndex, [&](Maybe<ProfileBufferEntryReader>&& er) {
+ ++read;
+ MOZ_RELEASE_ASSERT(er.isSome());
+ MOZ_RELEASE_ASSERT(er->CurrentBlockIndex() == blockIndex);
+ MOZ_RELEASE_ASSERT(!er->NextBlockIndex());
+ MOZ_RELEASE_ASSERT(er->RemainingBytes() == sizeof(test));
+ const auto value = er->ReadObject<decltype(test)>();
+ MOZ_RELEASE_ASSERT(value == test);
+ MOZ_RELEASE_ASSERT(er->RemainingBytes() == 0);
+ return 6;
+ });
+ MOZ_RELEASE_ASSERT(result == 6);
+ MOZ_RELEASE_ASSERT(read == 1);
+
+ MOZ_RELEASE_ASSERT(!cb.IsIndexInCurrentChunk(ProfileBufferIndex{}));
+ MOZ_RELEASE_ASSERT(
+ cb.IsIndexInCurrentChunk(blockIndex.ConvertToProfileBufferIndex()));
+ MOZ_RELEASE_ASSERT(cb.IsIndexInCurrentChunk(cb.GetState().mRangeEnd - 1));
+ MOZ_RELEASE_ASSERT(!cb.IsIndexInCurrentChunk(cb.GetState().mRangeEnd));
+
+ // No changes after reads.
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(
+ cb, 1, 1 + ULEB128Size(sizeof(test)) + sizeof(test), 1, 0, 0);
+
+ // Steal the underlying ProfileBufferChunks from the ProfileChunkedBuffer.
+ chunks = cb.GetAllChunks();
+ MOZ_RELEASE_ASSERT(!!chunks, "Expected at least one chunk");
+ MOZ_RELEASE_ASSERT(!!chunks->GetNext(), "Expected two chunks");
+ MOZ_RELEASE_ASSERT(!chunks->GetNext()->GetNext(), "Expected only two chunks");
+ const ProfileChunkedBuffer::Length chunkActualSize = chunks->BufferBytes();
+ MOZ_RELEASE_ASSERT(chunkActualSize >= chunkMinSize);
+ MOZ_RELEASE_ASSERT(chunks->RangeStart() == 1);
+ MOZ_RELEASE_ASSERT(chunks->OffsetFirstBlock() == 0);
+ MOZ_RELEASE_ASSERT(chunks->OffsetPastLastBlock() == 1 + sizeof(test));
+
+ // GetAllChunks() should have advanced the index one full chunk forward.
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, 1 + chunkActualSize,
+ 1 + chunkActualSize, 1, 0, 0);
+
+ // Nothing more to read from the now-empty ProfileChunkedBuffer.
+ cb.ReadEach([](ProfileBufferEntryReader&) { MOZ_RELEASE_ASSERT(false); });
+ cb.ReadEach([](ProfileBufferEntryReader&, ProfileBufferBlockIndex) {
+ MOZ_RELEASE_ASSERT(false);
+ });
+ result = 0;
+ result = cb.ReadAt(nullptr, [](Maybe<ProfileBufferEntryReader>&& er) {
+ MOZ_RELEASE_ASSERT(er.isNothing());
+ return 7;
+ });
+ MOZ_RELEASE_ASSERT(result == 7);
+
+ // Read the int from the stolen chunks.
+ read = 0;
+ ProfileChunkedBuffer::ReadEach(
+ chunks.get(), nullptr,
+ [&](ProfileBufferEntryReader& er, ProfileBufferBlockIndex aBlockIndex) {
+ ++read;
+ MOZ_RELEASE_ASSERT(aBlockIndex == blockIndex);
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == sizeof(test));
+ const auto value = er.ReadObject<decltype(test)>();
+ MOZ_RELEASE_ASSERT(value == test);
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == 0);
+ });
+ MOZ_RELEASE_ASSERT(read == 1);
+
+ // No changes after reads.
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, 1 + chunkActualSize,
+ 1 + chunkActualSize, 1, 0, 0);
+
+ // Write lots of numbers (by memcpy), which should trigger Chunk destructions.
+ ProfileBufferBlockIndex firstBlockIndex;
+ MOZ_RELEASE_ASSERT(!firstBlockIndex);
+ ProfileBufferBlockIndex lastBlockIndex;
+ MOZ_RELEASE_ASSERT(!lastBlockIndex);
+ const size_t lots = 2 * bufferMaxSize / (1 + sizeof(int));
+ for (size_t i = 1; i < lots; ++i) {
+ ProfileBufferBlockIndex blockIndex = cb.PutFrom(&i, sizeof(i));
+ MOZ_RELEASE_ASSERT(!!blockIndex);
+ MOZ_RELEASE_ASSERT(blockIndex > firstBlockIndex);
+ if (!firstBlockIndex) {
+ firstBlockIndex = blockIndex;
+ }
+ MOZ_RELEASE_ASSERT(blockIndex > lastBlockIndex);
+ lastBlockIndex = blockIndex;
+ }
+
+ ProfileChunkedBuffer::State stateAfterPuts = cb.GetState();
+ ProfileBufferIndex startAfterPuts = stateAfterPuts.mRangeStart;
+ MOZ_RELEASE_ASSERT(startAfterPuts > 1 + chunkActualSize);
+ ProfileBufferIndex endAfterPuts = stateAfterPuts.mRangeEnd;
+ MOZ_RELEASE_ASSERT(endAfterPuts > startAfterPuts);
+ uint64_t pushedAfterPuts = stateAfterPuts.mPushedBlockCount;
+ MOZ_RELEASE_ASSERT(pushedAfterPuts > 0);
+ uint64_t clearedAfterPuts = stateAfterPuts.mClearedBlockCount;
+ MOZ_RELEASE_ASSERT(clearedAfterPuts > 0);
+ MOZ_RELEASE_ASSERT(stateAfterPuts.mFailedPutBytes == 0);
+ MOZ_RELEASE_ASSERT(!cb.IsIndexInCurrentChunk(ProfileBufferIndex{}));
+ MOZ_RELEASE_ASSERT(
+ !cb.IsIndexInCurrentChunk(blockIndex.ConvertToProfileBufferIndex()));
+ MOZ_RELEASE_ASSERT(
+ !cb.IsIndexInCurrentChunk(firstBlockIndex.ConvertToProfileBufferIndex()));
+
+ // Read extant numbers, which should at least follow each other.
+ read = 0;
+ size_t i = 0;
+ cb.ReadEach(
+ [&](ProfileBufferEntryReader& er, ProfileBufferBlockIndex aBlockIndex) {
+ ++read;
+ MOZ_RELEASE_ASSERT(!!aBlockIndex);
+ MOZ_RELEASE_ASSERT(aBlockIndex > firstBlockIndex);
+ MOZ_RELEASE_ASSERT(aBlockIndex <= lastBlockIndex);
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == sizeof(size_t));
+ const auto value = er.ReadObject<size_t>();
+ if (i == 0) {
+ i = value;
+ } else {
+ MOZ_RELEASE_ASSERT(value == ++i);
+ }
+ MOZ_RELEASE_ASSERT(er.RemainingBytes() == 0);
+ });
+ MOZ_RELEASE_ASSERT(read != 0);
+ MOZ_RELEASE_ASSERT(read < lots);
+
+ // Read first extant number.
+ read = 0;
+ i = 0;
+ blockIndex = nullptr;
+ success =
+ cb.ReadAt(firstBlockIndex, [&](Maybe<ProfileBufferEntryReader>&& er) {
+ MOZ_ASSERT(er.isSome());
+ ++read;
+ MOZ_RELEASE_ASSERT(er->CurrentBlockIndex() > firstBlockIndex);
+ MOZ_RELEASE_ASSERT(!!er->NextBlockIndex());
+ MOZ_RELEASE_ASSERT(er->NextBlockIndex() > firstBlockIndex);
+ MOZ_RELEASE_ASSERT(er->NextBlockIndex() < lastBlockIndex);
+ blockIndex = er->NextBlockIndex();
+ MOZ_RELEASE_ASSERT(er->RemainingBytes() == sizeof(size_t));
+ const auto value = er->ReadObject<size_t>();
+ MOZ_RELEASE_ASSERT(i == 0);
+ i = value;
+ MOZ_RELEASE_ASSERT(er->RemainingBytes() == 0);
+ return 7;
+ });
+ MOZ_RELEASE_ASSERT(success);
+ MOZ_RELEASE_ASSERT(read == 1);
+ // Read other extant numbers one by one.
+ do {
+ bool success =
+ cb.ReadAt(blockIndex, [&](Maybe<ProfileBufferEntryReader>&& er) {
+ MOZ_ASSERT(er.isSome());
+ ++read;
+ MOZ_RELEASE_ASSERT(er->CurrentBlockIndex() == blockIndex);
+ MOZ_RELEASE_ASSERT(!er->NextBlockIndex() ||
+ er->NextBlockIndex() > blockIndex);
+ MOZ_RELEASE_ASSERT(!er->NextBlockIndex() ||
+ er->NextBlockIndex() > firstBlockIndex);
+ MOZ_RELEASE_ASSERT(!er->NextBlockIndex() ||
+ er->NextBlockIndex() <= lastBlockIndex);
+ MOZ_RELEASE_ASSERT(er->NextBlockIndex()
+ ? blockIndex < lastBlockIndex
+ : blockIndex == lastBlockIndex,
+ "er->NextBlockIndex() should only be null when "
+ "blockIndex is at the last block");
+ blockIndex = er->NextBlockIndex();
+ MOZ_RELEASE_ASSERT(er->RemainingBytes() == sizeof(size_t));
+ const auto value = er->ReadObject<size_t>();
+ MOZ_RELEASE_ASSERT(value == ++i);
+ MOZ_RELEASE_ASSERT(er->RemainingBytes() == 0);
+ return true;
+ });
+ MOZ_RELEASE_ASSERT(success);
+ } while (blockIndex);
+ MOZ_RELEASE_ASSERT(read > 1);
+
+ // No changes after reads.
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(
+ cb, startAfterPuts, endAfterPuts, pushedAfterPuts, clearedAfterPuts, 0);
+
+# ifdef DEBUG
+ // cb.Dump();
+# endif
+
+ cb.Clear();
+
+# ifdef DEBUG
+ // cb.Dump();
+# endif
+
+ ProfileChunkedBuffer::State stateAfterClear = cb.GetState();
+ ProfileBufferIndex startAfterClear = stateAfterClear.mRangeStart;
+ MOZ_RELEASE_ASSERT(startAfterClear > startAfterPuts);
+ ProfileBufferIndex endAfterClear = stateAfterClear.mRangeEnd;
+ MOZ_RELEASE_ASSERT(endAfterClear == startAfterClear);
+ MOZ_RELEASE_ASSERT(stateAfterClear.mPushedBlockCount == 0);
+ MOZ_RELEASE_ASSERT(stateAfterClear.mClearedBlockCount == 0);
+ MOZ_RELEASE_ASSERT(stateAfterClear.mFailedPutBytes == 0);
+ MOZ_RELEASE_ASSERT(!cb.IsIndexInCurrentChunk(ProfileBufferIndex{}));
+ MOZ_RELEASE_ASSERT(
+ !cb.IsIndexInCurrentChunk(blockIndex.ConvertToProfileBufferIndex()));
+ MOZ_RELEASE_ASSERT(!cb.IsIndexInCurrentChunk(stateAfterClear.mRangeEnd - 1));
+ MOZ_RELEASE_ASSERT(!cb.IsIndexInCurrentChunk(stateAfterClear.mRangeEnd));
+
+ // Start writer threads.
+ constexpr int ThreadCount = 32;
+ std::thread threads[ThreadCount];
+ for (int threadNo = 0; threadNo < ThreadCount; ++threadNo) {
+ threads[threadNo] = std::thread(
+ [&](int aThreadNo) {
+ ::SleepMilli(1);
+ constexpr int pushCount = 1024;
+ for (int push = 0; push < pushCount; ++push) {
+ // Reserve as many bytes as the thread number (but at least enough
+ // to store an int), and write an increasing int.
+ const bool success =
+ cb.Put(std::max(aThreadNo, int(sizeof(push))),
+ [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ if (!aEW) {
+ return false;
+ }
+ aEW->WriteObject(aThreadNo * 1000000 + push);
+ // Advance writer to the end.
+ for (size_t r = aEW->RemainingBytes(); r != 0; --r) {
+ aEW->WriteObject<char>('_');
+ }
+ return true;
+ });
+ MOZ_RELEASE_ASSERT(success);
+ }
+ },
+ threadNo);
+ }
+
+ // Wait for all writer threads to die.
+ for (auto&& thread : threads) {
+ thread.join();
+ }
+
+# ifdef DEBUG
+ // cb.Dump();
+# endif
+
+ ProfileChunkedBuffer::State stateAfterMTPuts = cb.GetState();
+ ProfileBufferIndex startAfterMTPuts = stateAfterMTPuts.mRangeStart;
+ MOZ_RELEASE_ASSERT(startAfterMTPuts > startAfterClear);
+ ProfileBufferIndex endAfterMTPuts = stateAfterMTPuts.mRangeEnd;
+ MOZ_RELEASE_ASSERT(endAfterMTPuts > startAfterMTPuts);
+ MOZ_RELEASE_ASSERT(stateAfterMTPuts.mPushedBlockCount > 0);
+ MOZ_RELEASE_ASSERT(stateAfterMTPuts.mClearedBlockCount > 0);
+ MOZ_RELEASE_ASSERT(stateAfterMTPuts.mFailedPutBytes == 0);
+
+ // Reset to out-of-session.
+ cb.ResetChunkManager();
+
+ ProfileChunkedBuffer::State stateAfterReset = cb.GetState();
+ ProfileBufferIndex startAfterReset = stateAfterReset.mRangeStart;
+ MOZ_RELEASE_ASSERT(startAfterReset == endAfterMTPuts);
+ ProfileBufferIndex endAfterReset = stateAfterReset.mRangeEnd;
+ MOZ_RELEASE_ASSERT(endAfterReset == startAfterReset);
+ MOZ_RELEASE_ASSERT(stateAfterReset.mPushedBlockCount == 0);
+ MOZ_RELEASE_ASSERT(stateAfterReset.mClearedBlockCount == 0);
+ MOZ_RELEASE_ASSERT(stateAfterReset.mFailedPutBytes == 0);
+
+ success = cb.ReserveAndPut(
+ []() {
+ MOZ_RELEASE_ASSERT(false);
+ return 1;
+ },
+ [](Maybe<ProfileBufferEntryWriter>& aEW) { return !!aEW; });
+ MOZ_RELEASE_ASSERT(!success);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, startAfterReset, endAfterReset,
+ 0, 0, 0);
+
+ success =
+ cb.Put(1, [](Maybe<ProfileBufferEntryWriter>& aEW) { return !!aEW; });
+ MOZ_RELEASE_ASSERT(!success);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, startAfterReset, endAfterReset,
+ 0, 0, 0);
+
+ blockIndex = cb.PutFrom(&success, 1);
+ MOZ_RELEASE_ASSERT(!blockIndex);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, startAfterReset, endAfterReset,
+ 0, 0, 0);
+
+ blockIndex = cb.PutObjects(123, success, "hello");
+ MOZ_RELEASE_ASSERT(!blockIndex);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, startAfterReset, endAfterReset,
+ 0, 0, 0);
+
+ blockIndex = cb.PutObject(123);
+ MOZ_RELEASE_ASSERT(!blockIndex);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, startAfterReset, endAfterReset,
+ 0, 0, 0);
+
+ chunks = cb.GetAllChunks();
+ MOZ_RELEASE_ASSERT(!chunks, "Expected no chunks when out-of-session");
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, startAfterReset, endAfterReset,
+ 0, 0, 0);
+
+ cb.ReadEach([](ProfileBufferEntryReader&) { MOZ_RELEASE_ASSERT(false); });
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, startAfterReset, endAfterReset,
+ 0, 0, 0);
+
+ success = cb.ReadAt(nullptr, [](Maybe<ProfileBufferEntryReader>&& er) {
+ MOZ_RELEASE_ASSERT(er.isNothing());
+ return true;
+ });
+ MOZ_RELEASE_ASSERT(success);
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cb, startAfterReset, endAfterReset,
+ 0, 0, 0);
+
+ printf("TestChunkedBuffer done\n");
+}
+
+static void TestChunkedBufferSingle() {
+ printf("TestChunkedBufferSingle...\n");
+
+ constexpr ProfileChunkedBuffer::Length chunkMinSize = 128;
+
+ // Create a ProfileChunkedBuffer that will own&use a
+ // ProfileBufferChunkManagerSingle, which will give away one
+ // ProfileBufferChunk that can contain 128 bytes.
+ ProfileChunkedBuffer cbSingle(
+ ProfileChunkedBuffer::ThreadSafety::WithoutMutex,
+ MakeUnique<ProfileBufferChunkManagerSingle>(chunkMinSize));
+
+ MOZ_RELEASE_ASSERT(cbSingle.BufferLength().isSome());
+ const ProfileChunkedBuffer::Length bufferBytes = *cbSingle.BufferLength();
+ MOZ_RELEASE_ASSERT(bufferBytes >= chunkMinSize);
+
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cbSingle, 1, 1, 0, 0, 0);
+
+ // We will write this many blocks to fill the chunk.
+ constexpr size_t testBlocks = 4;
+ const ProfileChunkedBuffer::Length blockBytes = bufferBytes / testBlocks;
+ MOZ_RELEASE_ASSERT(ULEB128Size(blockBytes) == 1,
+ "This test assumes block sizes are small enough so that "
+ "their ULEB128-encoded size is 1 byte");
+ const ProfileChunkedBuffer::Length entryBytes =
+ blockBytes - ULEB128Size(blockBytes);
+
+ // First buffer-filling test: Try to write a too-big entry at the end of the
+ // chunk.
+
+ // Write all but one block.
+ for (size_t i = 0; i < testBlocks - 1; ++i) {
+ cbSingle.Put(entryBytes, [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_RELEASE_ASSERT(aEW.isSome());
+ while (aEW->RemainingBytes() > 0) {
+ **aEW = '0' + i;
+ ++(*aEW);
+ }
+ });
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(
+ cbSingle, 1, 1 + blockBytes * (i + 1), i + 1, 0, 0);
+ }
+
+ // Write the last block so that it's too big (by 1 byte) to fit in the chunk,
+ // this should fail.
+ const ProfileChunkedBuffer::Length remainingBytesForLastBlock =
+ bufferBytes - blockBytes * (testBlocks - 1);
+ MOZ_RELEASE_ASSERT(ULEB128Size(remainingBytesForLastBlock) == 1,
+ "This test assumes block sizes are small enough so that "
+ "their ULEB128-encoded size is 1 byte");
+ const ProfileChunkedBuffer::Length entryToFitRemainingBytes =
+ remainingBytesForLastBlock - ULEB128Size(remainingBytesForLastBlock);
+ cbSingle.Put(entryToFitRemainingBytes + 1,
+ [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_RELEASE_ASSERT(aEW.isNothing());
+ });
+ // The buffer state should not have changed, apart from the failed bytes.
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(
+ cbSingle, 1, 1 + blockBytes * (testBlocks - 1), testBlocks - 1, 0,
+ remainingBytesForLastBlock + 1);
+
+ size_t read = 0;
+ cbSingle.ReadEach([&](ProfileBufferEntryReader& aER) {
+ MOZ_RELEASE_ASSERT(aER.RemainingBytes() == entryBytes);
+ while (aER.RemainingBytes() > 0) {
+ MOZ_RELEASE_ASSERT(*aER == '0' + read);
+ ++aER;
+ }
+ ++read;
+ });
+ MOZ_RELEASE_ASSERT(read == testBlocks - 1);
+
+ // ~Interlude~ Test AppendContent:
+ // Create another ProfileChunkedBuffer that will use a
+ // ProfileBufferChunkManagerWithLocalLimit, which will give away
+ // ProfileBufferChunks that can contain 128 bytes, using up to 1KB of memory
+ // (including usable 128 bytes and headers).
+ constexpr size_t bufferMaxSize = 1024;
+ ProfileBufferChunkManagerWithLocalLimit cmTarget(bufferMaxSize, chunkMinSize);
+ ProfileChunkedBuffer cbTarget(ProfileChunkedBuffer::ThreadSafety::WithMutex,
+ cmTarget);
+
+ // It should start empty.
+ cbTarget.ReadEach(
+ [](ProfileBufferEntryReader&) { MOZ_RELEASE_ASSERT(false); });
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cbTarget, 1, 1, 0, 0, 0);
+
+ // Copy the contents from cbSingle to cbTarget.
+ cbTarget.AppendContents(cbSingle);
+
+ // And verify that we now have the same contents in cbTarget.
+ read = 0;
+ cbTarget.ReadEach([&](ProfileBufferEntryReader& aER) {
+ MOZ_RELEASE_ASSERT(aER.RemainingBytes() == entryBytes);
+ while (aER.RemainingBytes() > 0) {
+ MOZ_RELEASE_ASSERT(*aER == '0' + read);
+ ++aER;
+ }
+ ++read;
+ });
+ MOZ_RELEASE_ASSERT(read == testBlocks - 1);
+ // The state should be the same as the source.
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(
+ cbTarget, 1, 1 + blockBytes * (testBlocks - 1), testBlocks - 1, 0, 0);
+
+# ifdef DEBUG
+ // cbSingle.Dump();
+ // cbTarget.Dump();
+# endif
+
+ // Because we failed to write a too-big chunk above, the chunk was marked
+ // full, so that entries should be consistently rejected from now on.
+ cbSingle.Put(1, [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_RELEASE_ASSERT(aEW.isNothing());
+ });
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(
+ cbSingle, 1, 1 + blockBytes * ((testBlocks - 1)), testBlocks - 1, 0,
+ remainingBytesForLastBlock + 1 + ULEB128Size(1u) + 1);
+
+ // Clear the buffer before the next test.
+
+ cbSingle.Clear();
+ // Clear() should move the index to the next chunk range -- even if it's
+ // really reusing the same chunk.
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cbSingle, 1 + bufferBytes,
+ 1 + bufferBytes, 0, 0, 0);
+ cbSingle.ReadEach(
+ [&](ProfileBufferEntryReader& aER) { MOZ_RELEASE_ASSERT(false); });
+
+ // Second buffer-filling test: Try to write a final entry that just fits at
+ // the end of the chunk.
+
+ // Write all but one block.
+ for (size_t i = 0; i < testBlocks - 1; ++i) {
+ cbSingle.Put(entryBytes, [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_RELEASE_ASSERT(aEW.isSome());
+ while (aEW->RemainingBytes() > 0) {
+ **aEW = 'a' + i;
+ ++(*aEW);
+ }
+ });
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(
+ cbSingle, 1 + bufferBytes, 1 + bufferBytes + blockBytes * (i + 1),
+ i + 1, 0, 0);
+ }
+
+ read = 0;
+ cbSingle.ReadEach([&](ProfileBufferEntryReader& aER) {
+ MOZ_RELEASE_ASSERT(aER.RemainingBytes() == entryBytes);
+ while (aER.RemainingBytes() > 0) {
+ MOZ_RELEASE_ASSERT(*aER == 'a' + read);
+ ++aER;
+ }
+ ++read;
+ });
+ MOZ_RELEASE_ASSERT(read == testBlocks - 1);
+
+ // Write the last block so that it fits exactly in the chunk.
+ cbSingle.Put(entryToFitRemainingBytes,
+ [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_RELEASE_ASSERT(aEW.isSome());
+ while (aEW->RemainingBytes() > 0) {
+ **aEW = 'a' + (testBlocks - 1);
+ ++(*aEW);
+ }
+ });
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(
+ cbSingle, 1 + bufferBytes, 1 + bufferBytes + blockBytes * testBlocks,
+ testBlocks, 0, 0);
+
+ read = 0;
+ cbSingle.ReadEach([&](ProfileBufferEntryReader& aER) {
+ MOZ_RELEASE_ASSERT(
+ aER.RemainingBytes() ==
+ ((read < testBlocks) ? entryBytes : entryToFitRemainingBytes));
+ while (aER.RemainingBytes() > 0) {
+ MOZ_RELEASE_ASSERT(*aER == 'a' + read);
+ ++aER;
+ }
+ ++read;
+ });
+ MOZ_RELEASE_ASSERT(read == testBlocks);
+
+ // Because the single chunk has been filled, it shouldn't be possible to write
+ // more entries.
+ cbSingle.Put(1, [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_RELEASE_ASSERT(aEW.isNothing());
+ });
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(
+ cbSingle, 1 + bufferBytes, 1 + bufferBytes + blockBytes * testBlocks,
+ testBlocks, 0, ULEB128Size(1u) + 1);
+
+ cbSingle.Clear();
+ // Clear() should move the index to the next chunk range -- even if it's
+ // really reusing the same chunk.
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(cbSingle, 1 + bufferBytes * 2,
+ 1 + bufferBytes * 2, 0, 0, 0);
+ cbSingle.ReadEach(
+ [&](ProfileBufferEntryReader& aER) { MOZ_RELEASE_ASSERT(false); });
+
+ // Clear() recycles the released chunk, so we should be able to record new
+ // entries.
+ cbSingle.Put(entryBytes, [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_RELEASE_ASSERT(aEW.isSome());
+ while (aEW->RemainingBytes() > 0) {
+ **aEW = 'x';
+ ++(*aEW);
+ }
+ });
+ VERIFY_PCB_START_END_PUSHED_CLEARED_FAILED(
+ cbSingle, 1 + bufferBytes * 2,
+ 1 + bufferBytes * 2 + ULEB128Size(entryBytes) + entryBytes, 1, 0, 0);
+ read = 0;
+ cbSingle.ReadEach([&](ProfileBufferEntryReader& aER) {
+ MOZ_RELEASE_ASSERT(read == 0);
+ MOZ_RELEASE_ASSERT(aER.RemainingBytes() == entryBytes);
+ while (aER.RemainingBytes() > 0) {
+ MOZ_RELEASE_ASSERT(*aER == 'x');
+ ++aER;
+ }
+ ++read;
+ });
+ MOZ_RELEASE_ASSERT(read == 1);
+
+ printf("TestChunkedBufferSingle done\n");
+}
+
+static void TestModuloBuffer(ModuloBuffer<>& mb, uint32_t MBSize) {
+ using MB = ModuloBuffer<>;
+
+ MOZ_RELEASE_ASSERT(mb.BufferLength().Value() == MBSize);
+
+ // Iterator comparisons.
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(2) == mb.ReaderAt(2));
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(2) != mb.ReaderAt(3));
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(2) < mb.ReaderAt(3));
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(2) <= mb.ReaderAt(2));
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(2) <= mb.ReaderAt(3));
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(3) > mb.ReaderAt(2));
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(2) >= mb.ReaderAt(2));
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(3) >= mb.ReaderAt(2));
+
+ // Iterators indices don't wrap around (even though they may be pointing at
+ // the same location).
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(2) != mb.ReaderAt(MBSize + 2));
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(MBSize + 2) != mb.ReaderAt(2));
+
+ // Dereference.
+ static_assert(std::is_same<decltype(*mb.ReaderAt(0)), const MB::Byte&>::value,
+ "Dereferencing from a reader should return const Byte*");
+ static_assert(std::is_same<decltype(*mb.WriterAt(0)), MB::Byte&>::value,
+ "Dereferencing from a writer should return Byte*");
+ // Contiguous between 0 and MBSize-1.
+ MOZ_RELEASE_ASSERT(&*mb.ReaderAt(MBSize - 1) ==
+ &*mb.ReaderAt(0) + (MBSize - 1));
+ // Wraps around.
+ MOZ_RELEASE_ASSERT(&*mb.ReaderAt(MBSize) == &*mb.ReaderAt(0));
+ MOZ_RELEASE_ASSERT(&*mb.ReaderAt(MBSize + MBSize - 1) ==
+ &*mb.ReaderAt(MBSize - 1));
+ MOZ_RELEASE_ASSERT(&*mb.ReaderAt(MBSize + MBSize) == &*mb.ReaderAt(0));
+ // Power of 2 modulo wrapping.
+ MOZ_RELEASE_ASSERT(&*mb.ReaderAt(uint32_t(-1)) == &*mb.ReaderAt(MBSize - 1));
+ MOZ_RELEASE_ASSERT(&*mb.ReaderAt(static_cast<MB::Index>(-1)) ==
+ &*mb.ReaderAt(MBSize - 1));
+
+ // Arithmetic.
+ MB::Reader arit = mb.ReaderAt(0);
+ MOZ_RELEASE_ASSERT(++arit == mb.ReaderAt(1));
+ MOZ_RELEASE_ASSERT(arit == mb.ReaderAt(1));
+
+ MOZ_RELEASE_ASSERT(--arit == mb.ReaderAt(0));
+ MOZ_RELEASE_ASSERT(arit == mb.ReaderAt(0));
+
+ MOZ_RELEASE_ASSERT(arit++ == mb.ReaderAt(0));
+ MOZ_RELEASE_ASSERT(arit == mb.ReaderAt(1));
+
+ MOZ_RELEASE_ASSERT(arit-- == mb.ReaderAt(1));
+ MOZ_RELEASE_ASSERT(arit == mb.ReaderAt(0));
+
+ MOZ_RELEASE_ASSERT(arit + 3 == mb.ReaderAt(3));
+ MOZ_RELEASE_ASSERT(arit == mb.ReaderAt(0));
+
+ MOZ_RELEASE_ASSERT(4 + arit == mb.ReaderAt(4));
+ MOZ_RELEASE_ASSERT(arit == mb.ReaderAt(0));
+
+ // (Can't have assignments inside asserts, hence the split.)
+ const bool checkPlusEq = ((arit += 3) == mb.ReaderAt(3));
+ MOZ_RELEASE_ASSERT(checkPlusEq);
+ MOZ_RELEASE_ASSERT(arit == mb.ReaderAt(3));
+
+ MOZ_RELEASE_ASSERT((arit - 2) == mb.ReaderAt(1));
+ MOZ_RELEASE_ASSERT(arit == mb.ReaderAt(3));
+
+ const bool checkMinusEq = ((arit -= 2) == mb.ReaderAt(1));
+ MOZ_RELEASE_ASSERT(checkMinusEq);
+ MOZ_RELEASE_ASSERT(arit == mb.ReaderAt(1));
+
+ // Random access.
+ MOZ_RELEASE_ASSERT(&arit[3] == &*(arit + 3));
+ MOZ_RELEASE_ASSERT(arit == mb.ReaderAt(1));
+
+ // Iterator difference.
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(3) - mb.ReaderAt(1) == 2);
+ MOZ_RELEASE_ASSERT(mb.ReaderAt(1) - mb.ReaderAt(3) == MB::Index(-2));
+
+ // Only testing Writer, as Reader is just a subset with no code differences.
+ MB::Writer it = mb.WriterAt(0);
+ MOZ_RELEASE_ASSERT(it.CurrentIndex() == 0);
+
+ // Write two characters at the start.
+ it.WriteObject('x');
+ it.WriteObject('y');
+
+ // Backtrack to read them.
+ it -= 2;
+ // PeekObject should read without moving.
+ MOZ_RELEASE_ASSERT(it.PeekObject<char>() == 'x');
+ MOZ_RELEASE_ASSERT(it.CurrentIndex() == 0);
+ // ReadObject should read and move past the character.
+ MOZ_RELEASE_ASSERT(it.ReadObject<char>() == 'x');
+ MOZ_RELEASE_ASSERT(it.CurrentIndex() == 1);
+ MOZ_RELEASE_ASSERT(it.PeekObject<char>() == 'y');
+ MOZ_RELEASE_ASSERT(it.CurrentIndex() == 1);
+ MOZ_RELEASE_ASSERT(it.ReadObject<char>() == 'y');
+ MOZ_RELEASE_ASSERT(it.CurrentIndex() == 2);
+
+ // Checking that a reader can be created from a writer.
+ MB::Reader it2(it);
+ MOZ_RELEASE_ASSERT(it2.CurrentIndex() == 2);
+ // Or assigned.
+ it2 = it;
+ MOZ_RELEASE_ASSERT(it2.CurrentIndex() == 2);
+
+ // Iterator traits.
+ static_assert(std::is_same<std::iterator_traits<MB::Reader>::difference_type,
+ MB::Index>::value,
+ "ModuloBuffer::Reader::difference_type should be Index");
+ static_assert(std::is_same<std::iterator_traits<MB::Reader>::value_type,
+ MB::Byte>::value,
+ "ModuloBuffer::Reader::value_type should be Byte");
+ static_assert(std::is_same<std::iterator_traits<MB::Reader>::pointer,
+ const MB::Byte*>::value,
+ "ModuloBuffer::Reader::pointer should be const Byte*");
+ static_assert(std::is_same<std::iterator_traits<MB::Reader>::reference,
+ const MB::Byte&>::value,
+ "ModuloBuffer::Reader::reference should be const Byte&");
+ static_assert(std::is_base_of<
+ std::input_iterator_tag,
+ std::iterator_traits<MB::Reader>::iterator_category>::value,
+ "ModuloBuffer::Reader::iterator_category should be derived "
+ "from input_iterator_tag");
+ static_assert(std::is_base_of<
+ std::forward_iterator_tag,
+ std::iterator_traits<MB::Reader>::iterator_category>::value,
+ "ModuloBuffer::Reader::iterator_category should be derived "
+ "from forward_iterator_tag");
+ static_assert(std::is_base_of<
+ std::bidirectional_iterator_tag,
+ std::iterator_traits<MB::Reader>::iterator_category>::value,
+ "ModuloBuffer::Reader::iterator_category should be derived "
+ "from bidirectional_iterator_tag");
+ static_assert(
+ std::is_same<std::iterator_traits<MB::Reader>::iterator_category,
+ std::random_access_iterator_tag>::value,
+ "ModuloBuffer::Reader::iterator_category should be "
+ "random_access_iterator_tag");
+
+ // Use as input iterator by std::string constructor (which is only considered
+ // with proper input iterators.)
+ std::string s(mb.ReaderAt(0), mb.ReaderAt(2));
+ MOZ_RELEASE_ASSERT(s == "xy");
+
+ // Write 4-byte number at index 2.
+ it.WriteObject(int32_t(123));
+ MOZ_RELEASE_ASSERT(it.CurrentIndex() == 6);
+ // And another, which should now wrap around (but index continues on.)
+ it.WriteObject(int32_t(456));
+ MOZ_RELEASE_ASSERT(it.CurrentIndex() == MBSize + 2);
+ // Even though index==MBSize+2, we can read the object we wrote at 2.
+ MOZ_RELEASE_ASSERT(it.ReadObject<int32_t>() == 123);
+ MOZ_RELEASE_ASSERT(it.CurrentIndex() == MBSize + 6);
+ // And similarly, index MBSize+6 points at the same location as index 6.
+ MOZ_RELEASE_ASSERT(it.ReadObject<int32_t>() == 456);
+ MOZ_RELEASE_ASSERT(it.CurrentIndex() == MBSize + MBSize + 2);
+}
+
+void TestModuloBuffer() {
+ printf("TestModuloBuffer...\n");
+
+ // Testing ModuloBuffer with default template arguments.
+ using MB = ModuloBuffer<>;
+
+ // Only 8-byte buffers, to easily test wrap-around.
+ constexpr uint32_t MBSize = 8;
+
+ // MB with self-allocated heap buffer.
+ MB mbByLength(MakePowerOfTwo32<MBSize>());
+ TestModuloBuffer(mbByLength, MBSize);
+
+ // MB taking ownership of a provided UniquePtr to a buffer.
+ auto uniqueBuffer = MakeUnique<uint8_t[]>(MBSize);
+ MB mbByUniquePtr(MakeUnique<uint8_t[]>(MBSize), MakePowerOfTwo32<MBSize>());
+ TestModuloBuffer(mbByUniquePtr, MBSize);
+
+ // MB using part of a buffer on the stack. The buffer is three times the
+ // required size: The middle third is where ModuloBuffer will work, the first
+ // and last thirds are only used to later verify that ModuloBuffer didn't go
+ // out of its bounds.
+ uint8_t buffer[MBSize * 3];
+ // Pre-fill the buffer with a known pattern, so we can later see what changed.
+ for (size_t i = 0; i < MBSize * 3; ++i) {
+ buffer[i] = uint8_t('A' + i);
+ }
+ MB mbByBuffer(&buffer[MBSize], MakePowerOfTwo32<MBSize>());
+ TestModuloBuffer(mbByBuffer, MBSize);
+
+ // Check that only the provided stack-based sub-buffer was modified.
+ uint32_t changed = 0;
+ for (size_t i = MBSize; i < MBSize * 2; ++i) {
+ changed += (buffer[i] == uint8_t('A' + i)) ? 0 : 1;
+ }
+ // Expect at least 75% changes.
+ MOZ_RELEASE_ASSERT(changed >= MBSize * 6 / 8);
+
+ // Everything around the sub-buffer should be unchanged.
+ for (size_t i = 0; i < MBSize; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+ for (size_t i = MBSize * 2; i < MBSize * 3; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+
+ // Check that move-construction is allowed. This verifies that we do not
+ // crash from a double free, when `mbByBuffer` and `mbByStolenBuffer` are both
+ // destroyed at the end of this function.
+ MB mbByStolenBuffer = std::move(mbByBuffer);
+ TestModuloBuffer(mbByStolenBuffer, MBSize);
+
+ // Check that only the provided stack-based sub-buffer was modified.
+ changed = 0;
+ for (size_t i = MBSize; i < MBSize * 2; ++i) {
+ changed += (buffer[i] == uint8_t('A' + i)) ? 0 : 1;
+ }
+ // Expect at least 75% changes.
+ MOZ_RELEASE_ASSERT(changed >= MBSize * 6 / 8);
+
+ // Everything around the sub-buffer should be unchanged.
+ for (size_t i = 0; i < MBSize; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+ for (size_t i = MBSize * 2; i < MBSize * 3; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+
+ // This test function does a `ReadInto` as directed, and checks that the
+ // result is the same as if the copy had been done manually byte-by-byte.
+ // `TestReadInto(3, 7, 2)` copies from index 3 to index 7, 2 bytes long.
+ // Return the output string (from `ReadInto`) for external checks.
+ auto TestReadInto = [](MB::Index aReadFrom, MB::Index aWriteTo,
+ MB::Length aBytes) {
+ constexpr uint32_t TRISize = 16;
+
+ // Prepare an input buffer, all different elements.
+ uint8_t input[TRISize + 1] = "ABCDEFGHIJKLMNOP";
+ const MB mbInput(input, MakePowerOfTwo32<TRISize>());
+
+ // Prepare an output buffer, different from input.
+ uint8_t output[TRISize + 1] = "abcdefghijklmnop";
+ MB mbOutput(output, MakePowerOfTwo32<TRISize>());
+
+ // Run ReadInto.
+ auto writer = mbOutput.WriterAt(aWriteTo);
+ mbInput.ReaderAt(aReadFrom).ReadInto(writer, aBytes);
+
+ // Do the same operation manually.
+ uint8_t outputCheck[TRISize + 1] = "abcdefghijklmnop";
+ MB mbOutputCheck(outputCheck, MakePowerOfTwo32<TRISize>());
+ auto readerCheck = mbInput.ReaderAt(aReadFrom);
+ auto writerCheck = mbOutputCheck.WriterAt(aWriteTo);
+ for (MB::Length i = 0; i < aBytes; ++i) {
+ *writerCheck++ = *readerCheck++;
+ }
+
+ // Compare the two outputs.
+ for (uint32_t i = 0; i < TRISize; ++i) {
+# ifdef TEST_MODULOBUFFER_FAILURE_DEBUG
+ // Only used when debugging failures.
+ if (output[i] != outputCheck[i]) {
+ printf(
+ "*** from=%u to=%u bytes=%u i=%u\ninput: '%s'\noutput: "
+ "'%s'\ncheck: '%s'\n",
+ unsigned(aReadFrom), unsigned(aWriteTo), unsigned(aBytes),
+ unsigned(i), input, output, outputCheck);
+ }
+# endif
+ MOZ_RELEASE_ASSERT(output[i] == outputCheck[i]);
+ }
+
+# ifdef TEST_MODULOBUFFER_HELPER
+ // Only used when adding more tests.
+ printf("*** from=%u to=%u bytes=%u output: %s\n", unsigned(aReadFrom),
+ unsigned(aWriteTo), unsigned(aBytes), output);
+# endif
+
+ return std::string(reinterpret_cast<const char*>(output));
+ };
+
+ // A few manual checks:
+ constexpr uint32_t TRISize = 16;
+ MOZ_RELEASE_ASSERT(TestReadInto(0, 0, 0) == "abcdefghijklmnop");
+ MOZ_RELEASE_ASSERT(TestReadInto(0, 0, TRISize) == "ABCDEFGHIJKLMNOP");
+ MOZ_RELEASE_ASSERT(TestReadInto(0, 5, TRISize) == "LMNOPABCDEFGHIJK");
+ MOZ_RELEASE_ASSERT(TestReadInto(5, 0, TRISize) == "FGHIJKLMNOPABCDE");
+
+ // Test everything! (16^3 = 4096, not too much.)
+ for (MB::Index r = 0; r < TRISize; ++r) {
+ for (MB::Index w = 0; w < TRISize; ++w) {
+ for (MB::Length len = 0; len < TRISize; ++len) {
+ TestReadInto(r, w, len);
+ }
+ }
+ }
+
+ printf("TestModuloBuffer done\n");
+}
+
+void TestBlocksRingBufferAPI() {
+ printf("TestBlocksRingBufferAPI...\n");
+
+ // Create a 16-byte buffer, enough to store up to 3 entries (1 byte size + 4
+ // bytes uint64_t).
+ constexpr uint32_t MBSize = 16;
+ uint8_t buffer[MBSize * 3];
+ for (size_t i = 0; i < MBSize * 3; ++i) {
+ buffer[i] = uint8_t('A' + i);
+ }
+
+ // Start a temporary block to constrain buffer lifetime.
+ {
+ BlocksRingBuffer rb(BlocksRingBuffer::ThreadSafety::WithMutex,
+ &buffer[MBSize], MakePowerOfTwo32<MBSize>());
+
+# define VERIFY_START_END_PUSHED_CLEARED(aStart, aEnd, aPushed, aCleared) \
+ { \
+ BlocksRingBuffer::State state = rb.GetState(); \
+ MOZ_RELEASE_ASSERT(state.mRangeStart.ConvertToProfileBufferIndex() == \
+ (aStart)); \
+ MOZ_RELEASE_ASSERT(state.mRangeEnd.ConvertToProfileBufferIndex() == \
+ (aEnd)); \
+ MOZ_RELEASE_ASSERT(state.mPushedBlockCount == (aPushed)); \
+ MOZ_RELEASE_ASSERT(state.mClearedBlockCount == (aCleared)); \
+ }
+
+ // All entries will contain one 32-bit number. The resulting blocks will
+ // have the following structure:
+ // - 1 byte for the LEB128 size of 4
+ // - 4 bytes for the number.
+ // E.g., if we have entries with `123` and `456`:
+ // .-- Index 0 reserved for empty ProfileBufferBlockIndex, nothing there.
+ // | .-- first readable block at index 1
+ // | |.-- first block at index 1
+ // | ||.-- 1 byte for the entry size, which is `4` (32 bits)
+ // | ||| .-- entry starts at index 2, contains 32-bit int
+ // | ||| | .-- entry and block finish *after* index 5 (so 6)
+ // | ||| | | .-- second block starts at index 6
+ // | ||| | | | etc.
+ // | ||| | | | .-- End readable blocks: 11
+ // v vvv v v V v
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+ // - S[4 | int(123) ] [4 | int(456) ]E
+
+ // Empty buffer to start with.
+ // Start&end indices still at 1 (0 is reserved for the default
+ // ProfileBufferBlockIndex{} that cannot point at a valid entry), nothing
+ // cleared.
+ VERIFY_START_END_PUSHED_CLEARED(1, 1, 0, 0);
+
+ // Default ProfileBufferBlockIndex.
+ ProfileBufferBlockIndex bi0;
+ if (bi0) {
+ MOZ_RELEASE_ASSERT(false,
+ "if (ProfileBufferBlockIndex{}) should fail test");
+ }
+ if (!bi0) {
+ } else {
+ MOZ_RELEASE_ASSERT(false,
+ "if (!ProfileBufferBlockIndex{}) should succeed test");
+ }
+ MOZ_RELEASE_ASSERT(!bi0);
+ MOZ_RELEASE_ASSERT(bi0 == bi0);
+ MOZ_RELEASE_ASSERT(bi0 <= bi0);
+ MOZ_RELEASE_ASSERT(bi0 >= bi0);
+ MOZ_RELEASE_ASSERT(!(bi0 != bi0));
+ MOZ_RELEASE_ASSERT(!(bi0 < bi0));
+ MOZ_RELEASE_ASSERT(!(bi0 > bi0));
+
+ // Default ProfileBufferBlockIndex can be used, but returns no valid entry.
+ rb.ReadAt(bi0, [](Maybe<ProfileBufferEntryReader>&& aMaybeReader) {
+ MOZ_RELEASE_ASSERT(aMaybeReader.isNothing());
+ });
+
+ // Push `1` directly.
+ MOZ_RELEASE_ASSERT(
+ rb.PutObject(uint32_t(1)).ConvertToProfileBufferIndex() == 1);
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+ // - S[4 | int(1) ]E
+ VERIFY_START_END_PUSHED_CLEARED(1, 6, 1, 0);
+
+ // Push `2` through ReserveAndPut, check output ProfileBufferBlockIndex.
+ auto bi2 = rb.ReserveAndPut([]() { return sizeof(uint32_t); },
+ [](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_RELEASE_ASSERT(aEW.isSome());
+ aEW->WriteObject(uint32_t(2));
+ return aEW->CurrentBlockIndex();
+ });
+ static_assert(std::is_same<decltype(bi2), ProfileBufferBlockIndex>::value,
+ "All index-returning functions should return a "
+ "ProfileBufferBlockIndex");
+ MOZ_RELEASE_ASSERT(bi2.ConvertToProfileBufferIndex() == 6);
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+ // - S[4 | int(1) ] [4 | int(2) ]E
+ VERIFY_START_END_PUSHED_CLEARED(1, 11, 2, 0);
+
+ // Check single entry at bi2, store next block index.
+ auto i2Next =
+ rb.ReadAt(bi2, [bi2](Maybe<ProfileBufferEntryReader>&& aMaybeReader) {
+ MOZ_RELEASE_ASSERT(aMaybeReader.isSome());
+ MOZ_RELEASE_ASSERT(aMaybeReader->CurrentBlockIndex() == bi2);
+ MOZ_RELEASE_ASSERT(aMaybeReader->NextBlockIndex() == nullptr);
+ size_t entrySize = aMaybeReader->RemainingBytes();
+ MOZ_RELEASE_ASSERT(aMaybeReader->ReadObject<uint32_t>() == 2);
+ // The next block index is after this block, which is made of the
+ // entry size (coded as ULEB128) followed by the entry itself.
+ return bi2.ConvertToProfileBufferIndex() + ULEB128Size(entrySize) +
+ entrySize;
+ });
+ auto bi2Next = rb.GetState().mRangeEnd;
+ MOZ_RELEASE_ASSERT(bi2Next.ConvertToProfileBufferIndex() == i2Next);
+ // bi2Next is at the end, nothing to read.
+ rb.ReadAt(bi2Next, [](Maybe<ProfileBufferEntryReader>&& aMaybeReader) {
+ MOZ_RELEASE_ASSERT(aMaybeReader.isNothing());
+ });
+
+ // ProfileBufferBlockIndex tests.
+ if (bi2) {
+ } else {
+ MOZ_RELEASE_ASSERT(
+ false,
+ "if (non-default-ProfileBufferBlockIndex) should succeed test");
+ }
+ if (!bi2) {
+ MOZ_RELEASE_ASSERT(
+ false, "if (!non-default-ProfileBufferBlockIndex) should fail test");
+ }
+
+ MOZ_RELEASE_ASSERT(!!bi2);
+ MOZ_RELEASE_ASSERT(bi2 == bi2);
+ MOZ_RELEASE_ASSERT(bi2 <= bi2);
+ MOZ_RELEASE_ASSERT(bi2 >= bi2);
+ MOZ_RELEASE_ASSERT(!(bi2 != bi2));
+ MOZ_RELEASE_ASSERT(!(bi2 < bi2));
+ MOZ_RELEASE_ASSERT(!(bi2 > bi2));
+
+ MOZ_RELEASE_ASSERT(bi0 != bi2);
+ MOZ_RELEASE_ASSERT(bi0 < bi2);
+ MOZ_RELEASE_ASSERT(bi0 <= bi2);
+ MOZ_RELEASE_ASSERT(!(bi0 == bi2));
+ MOZ_RELEASE_ASSERT(!(bi0 > bi2));
+ MOZ_RELEASE_ASSERT(!(bi0 >= bi2));
+
+ MOZ_RELEASE_ASSERT(bi2 != bi0);
+ MOZ_RELEASE_ASSERT(bi2 > bi0);
+ MOZ_RELEASE_ASSERT(bi2 >= bi0);
+ MOZ_RELEASE_ASSERT(!(bi2 == bi0));
+ MOZ_RELEASE_ASSERT(!(bi2 < bi0));
+ MOZ_RELEASE_ASSERT(!(bi2 <= bi0));
+
+ MOZ_RELEASE_ASSERT(bi2 != bi2Next);
+ MOZ_RELEASE_ASSERT(bi2 < bi2Next);
+ MOZ_RELEASE_ASSERT(bi2 <= bi2Next);
+ MOZ_RELEASE_ASSERT(!(bi2 == bi2Next));
+ MOZ_RELEASE_ASSERT(!(bi2 > bi2Next));
+ MOZ_RELEASE_ASSERT(!(bi2 >= bi2Next));
+
+ MOZ_RELEASE_ASSERT(bi2Next != bi2);
+ MOZ_RELEASE_ASSERT(bi2Next > bi2);
+ MOZ_RELEASE_ASSERT(bi2Next >= bi2);
+ MOZ_RELEASE_ASSERT(!(bi2Next == bi2));
+ MOZ_RELEASE_ASSERT(!(bi2Next < bi2));
+ MOZ_RELEASE_ASSERT(!(bi2Next <= bi2));
+
+ // Push `3` through Put, check writer output
+ // is returned to the initial caller.
+ auto put3 =
+ rb.Put(sizeof(uint32_t), [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_RELEASE_ASSERT(aEW.isSome());
+ aEW->WriteObject(uint32_t(3));
+ MOZ_RELEASE_ASSERT(aEW->CurrentBlockIndex() == bi2Next);
+ return float(aEW->CurrentBlockIndex().ConvertToProfileBufferIndex());
+ });
+ static_assert(std::is_same<decltype(put3), float>::value,
+ "Expect float as returned by callback.");
+ MOZ_RELEASE_ASSERT(put3 == 11.0);
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 (16)
+ // - S[4 | int(1) ] [4 | int(2) ] [4 | int(3) ]E
+ VERIFY_START_END_PUSHED_CLEARED(1, 16, 3, 0);
+
+ // Re-Read single entry at bi2, it should now have a next entry.
+ rb.ReadAt(bi2, [&](Maybe<ProfileBufferEntryReader>&& aMaybeReader) {
+ MOZ_RELEASE_ASSERT(aMaybeReader.isSome());
+ MOZ_RELEASE_ASSERT(aMaybeReader->CurrentBlockIndex() == bi2);
+ MOZ_RELEASE_ASSERT(aMaybeReader->ReadObject<uint32_t>() == 2);
+ MOZ_RELEASE_ASSERT(aMaybeReader->NextBlockIndex() == bi2Next);
+ });
+
+ // Check that we have `1` to `3`.
+ uint32_t count = 0;
+ rb.ReadEach([&](ProfileBufferEntryReader& aReader) {
+ MOZ_RELEASE_ASSERT(aReader.ReadObject<uint32_t>() == ++count);
+ });
+ MOZ_RELEASE_ASSERT(count == 3);
+
+ // Push `4`, store its ProfileBufferBlockIndex for later.
+ // This will wrap around, and clear the first entry.
+ ProfileBufferBlockIndex bi4 = rb.PutObject(uint32_t(4));
+ // Before:
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 (16)
+ // - S[4 | int(1) ] [4 | int(2) ] [4 | int(3) ]E
+ // 1. First entry cleared:
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 (16)
+ // - ? ? ? ? ? S[4 | int(2) ] [4 | int(3) ]E
+ // 2. New entry starts at 15 and wraps around: (shown on separate line)
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 (16)
+ // - ? ? ? ? ? S[4 | int(2) ] [4 | int(3) ]
+ // 16 17 18 19 20 21 ...
+ // [4 | int(4) ]E
+ // (collapsed)
+ // 16 17 18 19 20 21 6 7 8 9 10 11 12 13 14 15 (16)
+ // [4 | int(4) ]E ? S[4 | int(2) ] [4 | int(3) ]
+ VERIFY_START_END_PUSHED_CLEARED(6, 21, 4, 1);
+
+ // Check that we have `2` to `4`.
+ count = 1;
+ rb.ReadEach([&](ProfileBufferEntryReader& aReader) {
+ MOZ_RELEASE_ASSERT(aReader.ReadObject<uint32_t>() == ++count);
+ });
+ MOZ_RELEASE_ASSERT(count == 4);
+
+ // Push 5 through Put, no returns.
+ // This will clear the second entry.
+ // Check that the EntryWriter can access bi4 but not bi2.
+ auto bi5 =
+ rb.Put(sizeof(uint32_t), [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_RELEASE_ASSERT(aEW.isSome());
+ aEW->WriteObject(uint32_t(5));
+ return aEW->CurrentBlockIndex();
+ });
+ auto bi6 = rb.GetState().mRangeEnd;
+ // 16 17 18 19 20 21 22 23 24 25 26 11 12 13 14 15 (16)
+ // [4 | int(4) ] [4 | int(5) ]E ? S[4 | int(3) ]
+ VERIFY_START_END_PUSHED_CLEARED(11, 26, 5, 2);
+
+ // Read single entry at bi2, should now gracefully fail.
+ rb.ReadAt(bi2, [](Maybe<ProfileBufferEntryReader>&& aMaybeReader) {
+ MOZ_RELEASE_ASSERT(aMaybeReader.isNothing());
+ });
+
+ // Read single entry at bi5.
+ rb.ReadAt(bi5, [](Maybe<ProfileBufferEntryReader>&& aMaybeReader) {
+ MOZ_RELEASE_ASSERT(aMaybeReader.isSome());
+ MOZ_RELEASE_ASSERT(aMaybeReader->ReadObject<uint32_t>() == 5);
+ });
+
+ rb.Read([&](BlocksRingBuffer::Reader* aReader) {
+ MOZ_RELEASE_ASSERT(!!aReader);
+ // begin() and end() should be at the range edges (verified above).
+ MOZ_RELEASE_ASSERT(
+ aReader->begin().CurrentBlockIndex().ConvertToProfileBufferIndex() ==
+ 11);
+ MOZ_RELEASE_ASSERT(
+ aReader->end().CurrentBlockIndex().ConvertToProfileBufferIndex() ==
+ 26);
+ // Null ProfileBufferBlockIndex clamped to the beginning.
+ MOZ_RELEASE_ASSERT(aReader->At(bi0) == aReader->begin());
+ // Cleared block index clamped to the beginning.
+ MOZ_RELEASE_ASSERT(aReader->At(bi2) == aReader->begin());
+ // At(begin) same as begin().
+ MOZ_RELEASE_ASSERT(aReader->At(aReader->begin().CurrentBlockIndex()) ==
+ aReader->begin());
+ // bi5 at expected position.
+ MOZ_RELEASE_ASSERT(
+ aReader->At(bi5).CurrentBlockIndex().ConvertToProfileBufferIndex() ==
+ 21);
+ // bi6 at expected position at the end.
+ MOZ_RELEASE_ASSERT(aReader->At(bi6) == aReader->end());
+ // At(end) same as end().
+ MOZ_RELEASE_ASSERT(aReader->At(aReader->end().CurrentBlockIndex()) ==
+ aReader->end());
+ });
+
+ // Check that we have `3` to `5`.
+ count = 2;
+ rb.ReadEach([&](ProfileBufferEntryReader& aReader) {
+ MOZ_RELEASE_ASSERT(aReader.ReadObject<uint32_t>() == ++count);
+ });
+ MOZ_RELEASE_ASSERT(count == 5);
+
+ // Clear everything before `4`, this should clear `3`.
+ rb.ClearBefore(bi4);
+ // 16 17 18 19 20 21 22 23 24 25 26 11 12 13 14 15
+ // S[4 | int(4) ] [4 | int(5) ]E ? ? ? ? ? ?
+ VERIFY_START_END_PUSHED_CLEARED(16, 26, 5, 3);
+
+ // Check that we have `4` to `5`.
+ count = 3;
+ rb.ReadEach([&](ProfileBufferEntryReader& aReader) {
+ MOZ_RELEASE_ASSERT(aReader.ReadObject<uint32_t>() == ++count);
+ });
+ MOZ_RELEASE_ASSERT(count == 5);
+
+ // Clear everything before `4` again, nothing to clear.
+ rb.ClearBefore(bi4);
+ VERIFY_START_END_PUSHED_CLEARED(16, 26, 5, 3);
+
+ // Clear everything, this should clear `4` and `5`, and bring the start
+ // index where the end index currently is.
+ rb.ClearBefore(bi6);
+ // 16 17 18 19 20 21 22 23 24 25 26 11 12 13 14 15
+ // ? ? ? ? ? ? ? ? ? ? SE? ? ? ? ? ?
+ VERIFY_START_END_PUSHED_CLEARED(26, 26, 5, 5);
+
+ // Check that we have nothing to read.
+ rb.ReadEach([&](auto&&) { MOZ_RELEASE_ASSERT(false); });
+
+ // Read single entry at bi5, should now gracefully fail.
+ rb.ReadAt(bi5, [](Maybe<ProfileBufferEntryReader>&& aMaybeReader) {
+ MOZ_RELEASE_ASSERT(aMaybeReader.isNothing());
+ });
+
+ // Clear everything before now-cleared `4`, nothing to clear.
+ rb.ClearBefore(bi4);
+ VERIFY_START_END_PUSHED_CLEARED(26, 26, 5, 5);
+
+ // Push `6` directly.
+ MOZ_RELEASE_ASSERT(rb.PutObject(uint32_t(6)) == bi6);
+ // 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
+ // ? ? ? ? ? ? ? ? ? ? S[4 | int(6) ]E ?
+ VERIFY_START_END_PUSHED_CLEARED(26, 31, 6, 5);
+
+ {
+ // Create a 2nd buffer and fill it with `7` and `8`.
+ uint8_t buffer2[MBSize];
+ BlocksRingBuffer rb2(BlocksRingBuffer::ThreadSafety::WithoutMutex,
+ buffer2, MakePowerOfTwo32<MBSize>());
+ rb2.PutObject(uint32_t(7));
+ rb2.PutObject(uint32_t(8));
+ // Main buffer shouldn't have changed.
+ VERIFY_START_END_PUSHED_CLEARED(26, 31, 6, 5);
+
+ // Append contents of rb2 to rb, this should end up being the same as
+ // pushing the two numbers.
+ rb.AppendContents(rb2);
+ // 32 33 34 35 36 37 38 39 40 41 26 27 28 29 30 31
+ // int(7) ] [4 | int(8) ]E ? S[4 | int(6) ] [4 |
+ VERIFY_START_END_PUSHED_CLEARED(26, 41, 8, 5);
+
+ // Append contents of rb2 to rb again, to verify that rb2 was not modified
+ // above. This should clear `6` and the first `7`.
+ rb.AppendContents(rb2);
+ // 48 49 50 51 36 37 38 39 40 41 42 43 44 45 46 47
+ // int(8) ]E ? S[4 | int(8) ] [4 | int(7) ] [4 |
+ VERIFY_START_END_PUSHED_CLEARED(36, 51, 10, 7);
+
+ // End of block where rb2 lives, to verify that it is not needed anymore
+ // for its copied values to survive in rb.
+ }
+ VERIFY_START_END_PUSHED_CLEARED(36, 51, 10, 7);
+
+ // bi6 should now have been cleared.
+ rb.ReadAt(bi6, [](Maybe<ProfileBufferEntryReader>&& aMaybeReader) {
+ MOZ_RELEASE_ASSERT(aMaybeReader.isNothing());
+ });
+
+ // Check that we have `8`, `7`, `8`.
+ count = 0;
+ uint32_t expected[3] = {8, 7, 8};
+ rb.ReadEach([&](ProfileBufferEntryReader& aReader) {
+ MOZ_RELEASE_ASSERT(count < 3);
+ MOZ_RELEASE_ASSERT(aReader.ReadObject<uint32_t>() == expected[count++]);
+ });
+ MOZ_RELEASE_ASSERT(count == 3);
+
+ // End of block where rb lives, BlocksRingBuffer destructor should call
+ // entry destructor for remaining entries.
+ }
+
+ // Check that only the provided stack-based sub-buffer was modified.
+ uint32_t changed = 0;
+ for (size_t i = MBSize; i < MBSize * 2; ++i) {
+ changed += (buffer[i] == uint8_t('A' + i)) ? 0 : 1;
+ }
+ // Expect at least 75% changes.
+ MOZ_RELEASE_ASSERT(changed >= MBSize * 6 / 8);
+
+ // Everything around the sub-buffer should be unchanged.
+ for (size_t i = 0; i < MBSize; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+ for (size_t i = MBSize * 2; i < MBSize * 3; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+
+ printf("TestBlocksRingBufferAPI done\n");
+}
+
+void TestBlocksRingBufferUnderlyingBufferChanges() {
+ printf("TestBlocksRingBufferUnderlyingBufferChanges...\n");
+
+ // Out-of-session BlocksRingBuffer to start with.
+ BlocksRingBuffer rb(BlocksRingBuffer::ThreadSafety::WithMutex);
+
+ // Block index to read at. Initially "null", but may be changed below.
+ ProfileBufferBlockIndex bi;
+
+ // Test all rb APIs when rb is out-of-session and therefore doesn't have an
+ // underlying buffer.
+ auto testOutOfSession = [&]() {
+ MOZ_RELEASE_ASSERT(rb.BufferLength().isNothing());
+ BlocksRingBuffer::State state = rb.GetState();
+ // When out-of-session, range start and ends are the same, and there are no
+ // pushed&cleared blocks.
+ MOZ_RELEASE_ASSERT(state.mRangeStart == state.mRangeEnd);
+ MOZ_RELEASE_ASSERT(state.mPushedBlockCount == 0);
+ MOZ_RELEASE_ASSERT(state.mClearedBlockCount == 0);
+ // `Put()` functions run the callback with `Nothing`.
+ int32_t ran = 0;
+ rb.Put(1, [&](Maybe<ProfileBufferEntryWriter>& aMaybeEntryWriter) {
+ MOZ_RELEASE_ASSERT(aMaybeEntryWriter.isNothing());
+ ++ran;
+ });
+ MOZ_RELEASE_ASSERT(ran == 1);
+ // `PutFrom` won't do anything, and returns the null
+ // ProfileBufferBlockIndex.
+ MOZ_RELEASE_ASSERT(rb.PutFrom(&ran, sizeof(ran)) ==
+ ProfileBufferBlockIndex{});
+ MOZ_RELEASE_ASSERT(rb.PutObject(ran) == ProfileBufferBlockIndex{});
+ // `Read()` functions run the callback with `Nothing`.
+ ran = 0;
+ rb.Read([&](BlocksRingBuffer::Reader* aReader) {
+ MOZ_RELEASE_ASSERT(!aReader);
+ ++ran;
+ });
+ MOZ_RELEASE_ASSERT(ran == 1);
+ ran = 0;
+ rb.ReadAt(ProfileBufferBlockIndex{},
+ [&](Maybe<ProfileBufferEntryReader>&& aMaybeEntryReader) {
+ MOZ_RELEASE_ASSERT(aMaybeEntryReader.isNothing());
+ ++ran;
+ });
+ MOZ_RELEASE_ASSERT(ran == 1);
+ ran = 0;
+ rb.ReadAt(bi, [&](Maybe<ProfileBufferEntryReader>&& aMaybeEntryReader) {
+ MOZ_RELEASE_ASSERT(aMaybeEntryReader.isNothing());
+ ++ran;
+ });
+ MOZ_RELEASE_ASSERT(ran == 1);
+ // `ReadEach` shouldn't run the callback (nothing to read).
+ rb.ReadEach([](auto&&) { MOZ_RELEASE_ASSERT(false); });
+ };
+
+ // As `testOutOfSession()` attempts to modify the buffer, we run it twice to
+ // make sure one run doesn't influence the next one.
+ testOutOfSession();
+ testOutOfSession();
+
+ rb.ClearBefore(bi);
+ testOutOfSession();
+ testOutOfSession();
+
+ rb.Clear();
+ testOutOfSession();
+ testOutOfSession();
+
+ rb.Reset();
+ testOutOfSession();
+ testOutOfSession();
+
+ constexpr uint32_t MBSize = 32;
+
+ rb.Set(MakePowerOfTwo<BlocksRingBuffer::Length, MBSize>());
+
+ constexpr bool EMPTY = true;
+ constexpr bool NOT_EMPTY = false;
+ // Test all rb APIs when rb has an underlying buffer.
+ auto testInSession = [&](bool aExpectEmpty) {
+ MOZ_RELEASE_ASSERT(rb.BufferLength().isSome());
+ BlocksRingBuffer::State state = rb.GetState();
+ if (aExpectEmpty) {
+ MOZ_RELEASE_ASSERT(state.mRangeStart == state.mRangeEnd);
+ MOZ_RELEASE_ASSERT(state.mPushedBlockCount == 0);
+ MOZ_RELEASE_ASSERT(state.mClearedBlockCount == 0);
+ } else {
+ MOZ_RELEASE_ASSERT(state.mRangeStart < state.mRangeEnd);
+ MOZ_RELEASE_ASSERT(state.mPushedBlockCount > 0);
+ MOZ_RELEASE_ASSERT(state.mClearedBlockCount <= state.mPushedBlockCount);
+ }
+ int32_t ran = 0;
+ // The following three `Put...` will write three int32_t of value 1.
+ bi = rb.Put(sizeof(ran),
+ [&](Maybe<ProfileBufferEntryWriter>& aMaybeEntryWriter) {
+ MOZ_RELEASE_ASSERT(aMaybeEntryWriter.isSome());
+ ++ran;
+ aMaybeEntryWriter->WriteObject(ran);
+ return aMaybeEntryWriter->CurrentBlockIndex();
+ });
+ MOZ_RELEASE_ASSERT(ran == 1);
+ MOZ_RELEASE_ASSERT(rb.PutFrom(&ran, sizeof(ran)) !=
+ ProfileBufferBlockIndex{});
+ MOZ_RELEASE_ASSERT(rb.PutObject(ran) != ProfileBufferBlockIndex{});
+ ran = 0;
+ rb.Read([&](BlocksRingBuffer::Reader* aReader) {
+ MOZ_RELEASE_ASSERT(!!aReader);
+ ++ran;
+ });
+ MOZ_RELEASE_ASSERT(ran == 1);
+ ran = 0;
+ rb.ReadEach([&](ProfileBufferEntryReader& aEntryReader) {
+ MOZ_RELEASE_ASSERT(aEntryReader.RemainingBytes() == sizeof(ran));
+ MOZ_RELEASE_ASSERT(aEntryReader.ReadObject<decltype(ran)>() == 1);
+ ++ran;
+ });
+ MOZ_RELEASE_ASSERT(ran >= 3);
+ ran = 0;
+ rb.ReadAt(ProfileBufferBlockIndex{},
+ [&](Maybe<ProfileBufferEntryReader>&& aMaybeEntryReader) {
+ MOZ_RELEASE_ASSERT(aMaybeEntryReader.isNothing());
+ ++ran;
+ });
+ MOZ_RELEASE_ASSERT(ran == 1);
+ ran = 0;
+ rb.ReadAt(bi, [&](Maybe<ProfileBufferEntryReader>&& aMaybeEntryReader) {
+ MOZ_RELEASE_ASSERT(aMaybeEntryReader.isNothing() == !bi);
+ ++ran;
+ });
+ MOZ_RELEASE_ASSERT(ran == 1);
+ };
+
+ testInSession(EMPTY);
+ testInSession(NOT_EMPTY);
+
+ rb.Set(MakePowerOfTwo<BlocksRingBuffer::Length, 32>());
+ MOZ_RELEASE_ASSERT(rb.BufferLength().isSome());
+ rb.ReadEach([](auto&&) { MOZ_RELEASE_ASSERT(false); });
+
+ testInSession(EMPTY);
+ testInSession(NOT_EMPTY);
+
+ rb.Reset();
+ testOutOfSession();
+ testOutOfSession();
+
+ uint8_t buffer[MBSize * 3];
+ for (size_t i = 0; i < MBSize * 3; ++i) {
+ buffer[i] = uint8_t('A' + i);
+ }
+
+ rb.Set(&buffer[MBSize], MakePowerOfTwo<BlocksRingBuffer::Length, MBSize>());
+ MOZ_RELEASE_ASSERT(rb.BufferLength().isSome());
+ rb.ReadEach([](auto&&) { MOZ_RELEASE_ASSERT(false); });
+
+ testInSession(EMPTY);
+ testInSession(NOT_EMPTY);
+
+ rb.Reset();
+ testOutOfSession();
+ testOutOfSession();
+
+ rb.Set(&buffer[MBSize], MakePowerOfTwo<BlocksRingBuffer::Length, MBSize>());
+ MOZ_RELEASE_ASSERT(rb.BufferLength().isSome());
+ rb.ReadEach([](auto&&) { MOZ_RELEASE_ASSERT(false); });
+
+ testInSession(EMPTY);
+ testInSession(NOT_EMPTY);
+
+ // Remove the current underlying buffer, this should clear all entries.
+ rb.Reset();
+
+ // Check that only the provided stack-based sub-buffer was modified.
+ uint32_t changed = 0;
+ for (size_t i = MBSize; i < MBSize * 2; ++i) {
+ changed += (buffer[i] == uint8_t('A' + i)) ? 0 : 1;
+ }
+ // Expect at least 75% changes.
+ MOZ_RELEASE_ASSERT(changed >= MBSize * 6 / 8);
+
+ // Everything around the sub-buffer should be unchanged.
+ for (size_t i = 0; i < MBSize; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+ for (size_t i = MBSize * 2; i < MBSize * 3; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+
+ testOutOfSession();
+ testOutOfSession();
+
+ printf("TestBlocksRingBufferUnderlyingBufferChanges done\n");
+}
+
+void TestBlocksRingBufferThreading() {
+ printf("TestBlocksRingBufferThreading...\n");
+
+ constexpr uint32_t MBSize = 8192;
+ uint8_t buffer[MBSize * 3];
+ for (size_t i = 0; i < MBSize * 3; ++i) {
+ buffer[i] = uint8_t('A' + i);
+ }
+ BlocksRingBuffer rb(BlocksRingBuffer::ThreadSafety::WithMutex,
+ &buffer[MBSize], MakePowerOfTwo32<MBSize>());
+
+ // Start reader thread.
+ std::atomic<bool> stopReader{false};
+ std::thread reader([&]() {
+ for (;;) {
+ BlocksRingBuffer::State state = rb.GetState();
+ printf(
+ "Reader: range=%llu..%llu (%llu bytes) pushed=%llu cleared=%llu "
+ "(alive=%llu)\n",
+ static_cast<unsigned long long>(
+ state.mRangeStart.ConvertToProfileBufferIndex()),
+ static_cast<unsigned long long>(
+ state.mRangeEnd.ConvertToProfileBufferIndex()),
+ static_cast<unsigned long long>(
+ state.mRangeEnd.ConvertToProfileBufferIndex()) -
+ static_cast<unsigned long long>(
+ state.mRangeStart.ConvertToProfileBufferIndex()),
+ static_cast<unsigned long long>(state.mPushedBlockCount),
+ static_cast<unsigned long long>(state.mClearedBlockCount),
+ static_cast<unsigned long long>(state.mPushedBlockCount -
+ state.mClearedBlockCount));
+ if (stopReader) {
+ break;
+ }
+ ::SleepMilli(1);
+ }
+ });
+
+ // Start writer threads.
+ constexpr int ThreadCount = 32;
+ std::thread threads[ThreadCount];
+ for (int threadNo = 0; threadNo < ThreadCount; ++threadNo) {
+ threads[threadNo] = std::thread(
+ [&](int aThreadNo) {
+ ::SleepMilli(1);
+ constexpr int pushCount = 1024;
+ for (int push = 0; push < pushCount; ++push) {
+ // Reserve as many bytes as the thread number (but at least enough
+ // to store an int), and write an increasing int.
+ rb.Put(std::max(aThreadNo, int(sizeof(push))),
+ [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_RELEASE_ASSERT(aEW.isSome());
+ aEW->WriteObject(aThreadNo * 1000000 + push);
+ *aEW += aEW->RemainingBytes();
+ });
+ }
+ },
+ threadNo);
+ }
+
+ // Wait for all writer threads to die.
+ for (auto&& thread : threads) {
+ thread.join();
+ }
+
+ // Stop reader thread.
+ stopReader = true;
+ reader.join();
+
+ // Check that only the provided stack-based sub-buffer was modified.
+ uint32_t changed = 0;
+ for (size_t i = MBSize; i < MBSize * 2; ++i) {
+ changed += (buffer[i] == uint8_t('A' + i)) ? 0 : 1;
+ }
+ // Expect at least 75% changes.
+ MOZ_RELEASE_ASSERT(changed >= MBSize * 6 / 8);
+
+ // Everything around the sub-buffer should be unchanged.
+ for (size_t i = 0; i < MBSize; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+ for (size_t i = MBSize * 2; i < MBSize * 3; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+
+ printf("TestBlocksRingBufferThreading done\n");
+}
+
+void TestBlocksRingBufferSerialization() {
+ printf("TestBlocksRingBufferSerialization...\n");
+
+ constexpr uint32_t MBSize = 64;
+ uint8_t buffer[MBSize * 3];
+ for (size_t i = 0; i < MBSize * 3; ++i) {
+ buffer[i] = uint8_t('A' + i);
+ }
+ BlocksRingBuffer rb(BlocksRingBuffer::ThreadSafety::WithMutex,
+ &buffer[MBSize], MakePowerOfTwo32<MBSize>());
+
+ // Will expect literal string to always have the same address.
+# define THE_ANSWER "The answer is "
+ const char* theAnswer = THE_ANSWER;
+
+ rb.PutObjects('0', WrapProfileBufferLiteralCStringPointer(THE_ANSWER), 42,
+ std::string(" but pi="), 3.14);
+ rb.ReadEach([&](ProfileBufferEntryReader& aER) {
+ char c0;
+ const char* answer;
+ int integer;
+ std::string str;
+ double pi;
+ aER.ReadIntoObjects(c0, answer, integer, str, pi);
+ MOZ_RELEASE_ASSERT(c0 == '0');
+ MOZ_RELEASE_ASSERT(answer == theAnswer);
+ MOZ_RELEASE_ASSERT(integer == 42);
+ MOZ_RELEASE_ASSERT(str == " but pi=");
+ MOZ_RELEASE_ASSERT(pi == 3.14);
+ });
+ rb.ReadEach([&](ProfileBufferEntryReader& aER) {
+ char c0 = aER.ReadObject<char>();
+ MOZ_RELEASE_ASSERT(c0 == '0');
+ const char* answer = aER.ReadObject<const char*>();
+ MOZ_RELEASE_ASSERT(answer == theAnswer);
+ int integer = aER.ReadObject<int>();
+ MOZ_RELEASE_ASSERT(integer == 42);
+ std::string str = aER.ReadObject<std::string>();
+ MOZ_RELEASE_ASSERT(str == " but pi=");
+ double pi = aER.ReadObject<double>();
+ MOZ_RELEASE_ASSERT(pi == 3.14);
+ });
+
+ rb.Clear();
+ // Write an int and store its ProfileBufferBlockIndex.
+ ProfileBufferBlockIndex blockIndex = rb.PutObject(123);
+ // It should be non-0.
+ MOZ_RELEASE_ASSERT(blockIndex != ProfileBufferBlockIndex{});
+ // Write that ProfileBufferBlockIndex.
+ rb.PutObject(blockIndex);
+ rb.Read([&](BlocksRingBuffer::Reader* aR) {
+ BlocksRingBuffer::BlockIterator it = aR->begin();
+ const BlocksRingBuffer::BlockIterator itEnd = aR->end();
+ MOZ_RELEASE_ASSERT(it != itEnd);
+ MOZ_RELEASE_ASSERT((*it).ReadObject<int>() == 123);
+ ++it;
+ MOZ_RELEASE_ASSERT(it != itEnd);
+ MOZ_RELEASE_ASSERT((*it).ReadObject<ProfileBufferBlockIndex>() ==
+ blockIndex);
+ ++it;
+ MOZ_RELEASE_ASSERT(it == itEnd);
+ });
+
+ rb.Clear();
+ rb.PutObjects(
+ std::make_tuple('0', WrapProfileBufferLiteralCStringPointer(THE_ANSWER),
+ 42, std::string(" but pi="), 3.14));
+ rb.ReadEach([&](ProfileBufferEntryReader& aER) {
+ MOZ_RELEASE_ASSERT(aER.ReadObject<char>() == '0');
+ MOZ_RELEASE_ASSERT(aER.ReadObject<const char*>() == theAnswer);
+ MOZ_RELEASE_ASSERT(aER.ReadObject<int>() == 42);
+ MOZ_RELEASE_ASSERT(aER.ReadObject<std::string>() == " but pi=");
+ MOZ_RELEASE_ASSERT(aER.ReadObject<double>() == 3.14);
+ });
+
+ rb.Clear();
+ rb.PutObjects(
+ std::make_tuple('0', WrapProfileBufferLiteralCStringPointer(THE_ANSWER),
+ 42, std::string(" but pi="), 3.14));
+ rb.ReadEach([&](ProfileBufferEntryReader& aER) {
+ MOZ_RELEASE_ASSERT(aER.ReadObject<char>() == '0');
+ MOZ_RELEASE_ASSERT(aER.ReadObject<const char*>() == theAnswer);
+ MOZ_RELEASE_ASSERT(aER.ReadObject<int>() == 42);
+ MOZ_RELEASE_ASSERT(aER.ReadObject<std::string>() == " but pi=");
+ MOZ_RELEASE_ASSERT(aER.ReadObject<double>() == 3.14);
+ });
+
+ rb.Clear();
+ {
+ UniqueFreePtr<char> ufps(strdup(THE_ANSWER));
+ rb.PutObjects(ufps);
+ }
+ rb.ReadEach([&](ProfileBufferEntryReader& aER) {
+ auto ufps = aER.ReadObject<UniqueFreePtr<char>>();
+ MOZ_RELEASE_ASSERT(!!ufps);
+ MOZ_RELEASE_ASSERT(std::string(THE_ANSWER) == ufps.get());
+ });
+
+ rb.Clear();
+ int intArray[] = {1, 2, 3, 4, 5};
+ rb.PutObjects(Span(intArray));
+ rb.ReadEach([&](ProfileBufferEntryReader& aER) {
+ int intArrayOut[sizeof(intArray) / sizeof(intArray[0])] = {0};
+ auto outSpan = Span(intArrayOut);
+ aER.ReadIntoObject(outSpan);
+ for (size_t i = 0; i < sizeof(intArray) / sizeof(intArray[0]); ++i) {
+ MOZ_RELEASE_ASSERT(intArrayOut[i] == intArray[i]);
+ }
+ });
+
+ rb.Clear();
+ rb.PutObjects(Maybe<int>(Nothing{}), Maybe<int>(Some(123)));
+ rb.ReadEach([&](ProfileBufferEntryReader& aER) {
+ Maybe<int> mi0, mi1;
+ aER.ReadIntoObjects(mi0, mi1);
+ MOZ_RELEASE_ASSERT(mi0.isNothing());
+ MOZ_RELEASE_ASSERT(mi1.isSome());
+ MOZ_RELEASE_ASSERT(*mi1 == 123);
+ });
+
+ rb.Clear();
+ using V = Variant<int, double, int>;
+ V v0(VariantIndex<0>{}, 123);
+ V v1(3.14);
+ V v2(VariantIndex<2>{}, 456);
+ rb.PutObjects(v0, v1, v2);
+ rb.ReadEach([&](ProfileBufferEntryReader& aER) {
+ MOZ_RELEASE_ASSERT(aER.ReadObject<V>() == v0);
+ MOZ_RELEASE_ASSERT(aER.ReadObject<V>() == v1);
+ MOZ_RELEASE_ASSERT(aER.ReadObject<V>() == v2);
+ });
+
+ // 2nd BlocksRingBuffer to contain the 1st one. It has be be more than twice
+ // the size.
+ constexpr uint32_t MBSize2 = MBSize * 4;
+ uint8_t buffer2[MBSize2 * 3];
+ for (size_t i = 0; i < MBSize2 * 3; ++i) {
+ buffer2[i] = uint8_t('B' + i);
+ }
+ BlocksRingBuffer rb2(BlocksRingBuffer::ThreadSafety::WithoutMutex,
+ &buffer2[MBSize2], MakePowerOfTwo32<MBSize2>());
+ rb2.PutObject(rb);
+
+ // 3rd BlocksRingBuffer deserialized from the 2nd one.
+ uint8_t buffer3[MBSize * 3];
+ for (size_t i = 0; i < MBSize * 3; ++i) {
+ buffer3[i] = uint8_t('C' + i);
+ }
+ BlocksRingBuffer rb3(BlocksRingBuffer::ThreadSafety::WithoutMutex,
+ &buffer3[MBSize], MakePowerOfTwo32<MBSize>());
+ rb2.ReadEach([&](ProfileBufferEntryReader& aER) { aER.ReadIntoObject(rb3); });
+
+ // And a 4th heap-allocated one.
+ UniquePtr<BlocksRingBuffer> rb4up;
+ rb2.ReadEach([&](ProfileBufferEntryReader& aER) {
+ rb4up = aER.ReadObject<UniquePtr<BlocksRingBuffer>>();
+ });
+ MOZ_RELEASE_ASSERT(!!rb4up);
+
+ // Clear 1st and 2nd BlocksRingBuffers, to ensure we have made a deep copy
+ // into the 3rd&4th ones.
+ rb.Clear();
+ rb2.Clear();
+
+ // And now the 3rd one should have the same contents as the 1st one had.
+ rb3.ReadEach([&](ProfileBufferEntryReader& aER) {
+ MOZ_RELEASE_ASSERT(aER.ReadObject<V>() == v0);
+ MOZ_RELEASE_ASSERT(aER.ReadObject<V>() == v1);
+ MOZ_RELEASE_ASSERT(aER.ReadObject<V>() == v2);
+ });
+
+ // And 4th.
+ rb4up->ReadEach([&](ProfileBufferEntryReader& aER) {
+ MOZ_RELEASE_ASSERT(aER.ReadObject<V>() == v0);
+ MOZ_RELEASE_ASSERT(aER.ReadObject<V>() == v1);
+ MOZ_RELEASE_ASSERT(aER.ReadObject<V>() == v2);
+ });
+
+ // In fact, the 3rd and 4th ones should have the same state, because they were
+ // created the same way.
+ MOZ_RELEASE_ASSERT(rb3.GetState().mRangeStart ==
+ rb4up->GetState().mRangeStart);
+ MOZ_RELEASE_ASSERT(rb3.GetState().mRangeEnd == rb4up->GetState().mRangeEnd);
+ MOZ_RELEASE_ASSERT(rb3.GetState().mPushedBlockCount ==
+ rb4up->GetState().mPushedBlockCount);
+ MOZ_RELEASE_ASSERT(rb3.GetState().mClearedBlockCount ==
+ rb4up->GetState().mClearedBlockCount);
+
+ // Check that only the provided stack-based sub-buffer was modified.
+ uint32_t changed = 0;
+ for (size_t i = MBSize; i < MBSize * 2; ++i) {
+ changed += (buffer[i] == uint8_t('A' + i)) ? 0 : 1;
+ }
+ // Expect at least 75% changes.
+ MOZ_RELEASE_ASSERT(changed >= MBSize * 6 / 8);
+
+ // Everything around the sub-buffers should be unchanged.
+ for (size_t i = 0; i < MBSize; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+ for (size_t i = MBSize * 2; i < MBSize * 3; ++i) {
+ MOZ_RELEASE_ASSERT(buffer[i] == uint8_t('A' + i));
+ }
+
+ for (size_t i = 0; i < MBSize2; ++i) {
+ MOZ_RELEASE_ASSERT(buffer2[i] == uint8_t('B' + i));
+ }
+ for (size_t i = MBSize2 * 2; i < MBSize2 * 3; ++i) {
+ MOZ_RELEASE_ASSERT(buffer2[i] == uint8_t('B' + i));
+ }
+
+ for (size_t i = 0; i < MBSize; ++i) {
+ MOZ_RELEASE_ASSERT(buffer3[i] == uint8_t('C' + i));
+ }
+ for (size_t i = MBSize * 2; i < MBSize * 3; ++i) {
+ MOZ_RELEASE_ASSERT(buffer3[i] == uint8_t('C' + i));
+ }
+
+ printf("TestBlocksRingBufferSerialization done\n");
+}
+
+void TestLiteralEmptyStringView() {
+ printf("TestLiteralEmptyStringView...\n");
+
+ static_assert(mozilla::LiteralEmptyStringView<char>() ==
+ std::string_view(""));
+ static_assert(!!mozilla::LiteralEmptyStringView<char>().data());
+ static_assert(mozilla::LiteralEmptyStringView<char>().length() == 0);
+
+ static_assert(mozilla::LiteralEmptyStringView<char16_t>() ==
+ std::basic_string_view<char16_t>(u""));
+ static_assert(!!mozilla::LiteralEmptyStringView<char16_t>().data());
+ static_assert(mozilla::LiteralEmptyStringView<char16_t>().length() == 0);
+
+ printf("TestLiteralEmptyStringView done\n");
+}
+
+template <typename CHAR>
+void TestProfilerStringView() {
+ if constexpr (std::is_same_v<CHAR, char>) {
+ printf("TestProfilerStringView<char>...\n");
+ } else if constexpr (std::is_same_v<CHAR, char16_t>) {
+ printf("TestProfilerStringView<char16_t>...\n");
+ } else {
+ MOZ_RELEASE_ASSERT(false,
+ "TestProfilerStringView only handles char and char16_t");
+ }
+
+ // Used to verify implicit constructions, as this will normally be used in
+ // function parameters.
+ auto BSV = [](mozilla::ProfilerStringView<CHAR>&& aBSV) {
+ return std::move(aBSV);
+ };
+
+ // These look like string literals, as expected by some string constructors.
+ const CHAR empty[0 + 1] = {CHAR('\0')};
+ const CHAR hi[2 + 1] = {
+ CHAR('h'),
+ CHAR('i'),
+ CHAR('\0'),
+ };
+
+ // Literal empty string.
+ MOZ_RELEASE_ASSERT(BSV(empty).Length() == 0);
+ MOZ_RELEASE_ASSERT(BSV(empty).AsSpan().IsEmpty());
+ MOZ_RELEASE_ASSERT(BSV(empty).IsLiteral());
+ MOZ_RELEASE_ASSERT(!BSV(empty).IsReference());
+
+ // Literal non-empty string.
+ MOZ_RELEASE_ASSERT(BSV(hi).Length() == 2);
+ MOZ_RELEASE_ASSERT(BSV(hi).AsSpan().Elements());
+ MOZ_RELEASE_ASSERT(BSV(hi).AsSpan().Elements()[0] == CHAR('h'));
+ MOZ_RELEASE_ASSERT(BSV(hi).AsSpan().Elements()[1] == CHAR('i'));
+ MOZ_RELEASE_ASSERT(BSV(hi).IsLiteral());
+ MOZ_RELEASE_ASSERT(!BSV(hi).IsReference());
+
+ // std::string_view to a literal empty string.
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string_view<CHAR>(empty)).Length() == 0);
+ MOZ_RELEASE_ASSERT(
+ BSV(std::basic_string_view<CHAR>(empty)).AsSpan().IsEmpty());
+ MOZ_RELEASE_ASSERT(!BSV(std::basic_string_view<CHAR>(empty)).IsLiteral());
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string_view<CHAR>(empty)).IsReference());
+
+ // std::string_view to a literal non-empty string.
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string_view<CHAR>(hi)).Length() == 2);
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string_view<CHAR>(hi)).AsSpan().Elements());
+ MOZ_RELEASE_ASSERT(
+ BSV(std::basic_string_view<CHAR>(hi)).AsSpan().Elements()[0] ==
+ CHAR('h'));
+ MOZ_RELEASE_ASSERT(
+ BSV(std::basic_string_view<CHAR>(hi)).AsSpan().Elements()[1] ==
+ CHAR('i'));
+ MOZ_RELEASE_ASSERT(!BSV(std::basic_string_view<CHAR>(hi)).IsLiteral());
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string_view<CHAR>(hi)).IsReference());
+
+ // Default std::string_view points at nullptr, ProfilerStringView converts it
+ // to the literal empty string.
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string_view<CHAR>()).Length() == 0);
+ MOZ_RELEASE_ASSERT(!std::basic_string_view<CHAR>().data());
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string_view<CHAR>()).AsSpan().IsEmpty());
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string_view<CHAR>()).IsLiteral());
+ MOZ_RELEASE_ASSERT(!BSV(std::basic_string_view<CHAR>()).IsReference());
+
+ // std::string to a literal empty string.
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string<CHAR>(empty)).Length() == 0);
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string<CHAR>(empty)).AsSpan().IsEmpty());
+ MOZ_RELEASE_ASSERT(!BSV(std::basic_string<CHAR>(empty)).IsLiteral());
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string<CHAR>(empty)).IsReference());
+
+ // std::string to a literal non-empty string.
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string<CHAR>(hi)).Length() == 2);
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string<CHAR>(hi)).AsSpan().Elements());
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string<CHAR>(hi)).AsSpan().Elements()[0] ==
+ CHAR('h'));
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string<CHAR>(hi)).AsSpan().Elements()[1] ==
+ CHAR('i'));
+ MOZ_RELEASE_ASSERT(!BSV(std::basic_string<CHAR>(hi)).IsLiteral());
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string<CHAR>(hi)).IsReference());
+
+ // Default std::string contains an empty null-terminated string.
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string<CHAR>()).Length() == 0);
+ MOZ_RELEASE_ASSERT(std::basic_string<CHAR>().data());
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string<CHAR>()).AsSpan().IsEmpty());
+ MOZ_RELEASE_ASSERT(!BSV(std::basic_string<CHAR>()).IsLiteral());
+ MOZ_RELEASE_ASSERT(BSV(std::basic_string<CHAR>()).IsReference());
+
+ // Class that quacks like nsTString (with Data(), Length(), IsLiteral()), to
+ // check that ProfilerStringView can read from them.
+ class FakeNsTString {
+ public:
+ FakeNsTString(const CHAR* aData, size_t aLength, bool aIsLiteral)
+ : mData(aData), mLength(aLength), mIsLiteral(aIsLiteral) {}
+
+ const CHAR* Data() const { return mData; }
+ size_t Length() const { return mLength; }
+ bool IsLiteral() const { return mIsLiteral; }
+
+ private:
+ const CHAR* mData;
+ size_t mLength;
+ bool mIsLiteral;
+ };
+
+ // FakeNsTString to nullptr.
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(nullptr, 0, true)).Length() == 0);
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(nullptr, 0, true)).AsSpan().IsEmpty());
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(nullptr, 0, true)).IsLiteral());
+ MOZ_RELEASE_ASSERT(!BSV(FakeNsTString(nullptr, 0, true)).IsReference());
+
+ // FakeNsTString to a literal empty string.
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(empty, 0, true)).Length() == 0);
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(empty, 0, true)).AsSpan().IsEmpty());
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(empty, 0, true)).IsLiteral());
+ MOZ_RELEASE_ASSERT(!BSV(FakeNsTString(empty, 0, true)).IsReference());
+
+ // FakeNsTString to a literal non-empty string.
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(hi, 2, true)).Length() == 2);
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(hi, 2, true)).AsSpan().Elements());
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(hi, 2, true)).AsSpan().Elements()[0] ==
+ CHAR('h'));
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(hi, 2, true)).AsSpan().Elements()[1] ==
+ CHAR('i'));
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(hi, 2, true)).IsLiteral());
+ MOZ_RELEASE_ASSERT(!BSV(FakeNsTString(hi, 2, true)).IsReference());
+
+ // FakeNsTString to a non-literal non-empty string.
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(hi, 2, false)).Length() == 2);
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(hi, 2, false)).AsSpan().Elements());
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(hi, 2, false)).AsSpan().Elements()[0] ==
+ CHAR('h'));
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(hi, 2, false)).AsSpan().Elements()[1] ==
+ CHAR('i'));
+ MOZ_RELEASE_ASSERT(!BSV(FakeNsTString(hi, 2, false)).IsLiteral());
+ MOZ_RELEASE_ASSERT(BSV(FakeNsTString(hi, 2, false)).IsReference());
+
+ // Serialization and deserialization (with ownership).
+ constexpr size_t bufferMaxSize = 1024;
+ constexpr ProfileChunkedBuffer::Length chunkMinSize = 128;
+ ProfileBufferChunkManagerWithLocalLimit cm(bufferMaxSize, chunkMinSize);
+ ProfileChunkedBuffer cb(ProfileChunkedBuffer::ThreadSafety::WithMutex, cm);
+
+ // Literal string, serialized as raw pointer.
+ MOZ_RELEASE_ASSERT(cb.PutObject(BSV(hi)));
+ {
+ unsigned read = 0;
+ ProfilerStringView<CHAR> outerBSV;
+ cb.ReadEach([&](ProfileBufferEntryReader& aER) {
+ ++read;
+ auto bsv = aER.ReadObject<ProfilerStringView<CHAR>>();
+ MOZ_RELEASE_ASSERT(bsv.Length() == 2);
+ MOZ_RELEASE_ASSERT(bsv.AsSpan().Elements());
+ MOZ_RELEASE_ASSERT(bsv.AsSpan().Elements()[0] == CHAR('h'));
+ MOZ_RELEASE_ASSERT(bsv.AsSpan().Elements()[1] == CHAR('i'));
+ MOZ_RELEASE_ASSERT(bsv.IsLiteral());
+ MOZ_RELEASE_ASSERT(!bsv.IsReference());
+ outerBSV = std::move(bsv);
+ });
+ MOZ_RELEASE_ASSERT(read == 1);
+ MOZ_RELEASE_ASSERT(outerBSV.Length() == 2);
+ MOZ_RELEASE_ASSERT(outerBSV.AsSpan().Elements());
+ MOZ_RELEASE_ASSERT(outerBSV.AsSpan().Elements()[0] == CHAR('h'));
+ MOZ_RELEASE_ASSERT(outerBSV.AsSpan().Elements()[1] == CHAR('i'));
+ MOZ_RELEASE_ASSERT(outerBSV.IsLiteral());
+ MOZ_RELEASE_ASSERT(!outerBSV.IsReference());
+ }
+
+ MOZ_RELEASE_ASSERT(cb.GetState().mRangeStart == 1u);
+
+ cb.Clear();
+
+ // Non-literal string, content is serialized.
+
+ // We'll try to write 4 strings, such that the 4th one will cross into the
+ // next chunk.
+ unsigned guessedChunkBytes = unsigned(cb.GetState().mRangeStart) - 1u;
+ static constexpr unsigned stringCount = 4u;
+ const unsigned stringSize =
+ guessedChunkBytes / stringCount / sizeof(CHAR) + 3u;
+
+ std::basic_string<CHAR> longString;
+ longString.reserve(stringSize);
+ for (unsigned i = 0; i < stringSize; ++i) {
+ longString += CHAR('0' + i);
+ }
+
+ for (unsigned i = 0; i < stringCount; ++i) {
+ MOZ_RELEASE_ASSERT(cb.PutObject(BSV(longString)));
+ }
+
+ {
+ unsigned read = 0;
+ ProfilerStringView<CHAR> outerBSV;
+ cb.ReadEach([&](ProfileBufferEntryReader& aER) {
+ ++read;
+ {
+ auto bsv = aER.ReadObject<ProfilerStringView<CHAR>>();
+ MOZ_RELEASE_ASSERT(bsv.Length() == stringSize);
+ MOZ_RELEASE_ASSERT(bsv.AsSpan().Elements());
+ for (unsigned i = 0; i < stringSize; ++i) {
+ MOZ_RELEASE_ASSERT(bsv.AsSpan().Elements()[i] == CHAR('0' + i));
+ longString += '0' + i;
+ }
+ MOZ_RELEASE_ASSERT(!bsv.IsLiteral());
+ // The first 3 should be references (because they fit in one chunk, so
+ // they can be referenced directly), which the 4th one have to be copied
+ // out of two chunks and stitched back together.
+ MOZ_RELEASE_ASSERT(bsv.IsReference() == (read != 4));
+
+ // Test move of ownership.
+ outerBSV = std::move(bsv);
+ // After a move, references stay complete, while a non-reference had a
+ // buffer that has been moved out.
+ // NOLINTNEXTLINE(bugprone-use-after-move,clang-analyzer-cplusplus.Move)
+ MOZ_RELEASE_ASSERT(bsv.Length() == ((read != 4) ? stringSize : 0));
+ }
+
+ MOZ_RELEASE_ASSERT(outerBSV.Length() == stringSize);
+ MOZ_RELEASE_ASSERT(outerBSV.AsSpan().Elements());
+ for (unsigned i = 0; i < stringSize; ++i) {
+ MOZ_RELEASE_ASSERT(outerBSV.AsSpan().Elements()[i] == CHAR('0' + i));
+ longString += '0' + i;
+ }
+ MOZ_RELEASE_ASSERT(!outerBSV.IsLiteral());
+ MOZ_RELEASE_ASSERT(outerBSV.IsReference() == (read != 4));
+ });
+ MOZ_RELEASE_ASSERT(read == 4);
+ }
+
+ if constexpr (std::is_same_v<CHAR, char>) {
+ printf("TestProfilerStringView<char> done\n");
+ } else if constexpr (std::is_same_v<CHAR, char16_t>) {
+ printf("TestProfilerStringView<char16_t> done\n");
+ }
+}
+
+void TestProfilerDependencies() {
+ TestPowerOfTwoMask();
+ TestPowerOfTwo();
+ TestLEB128();
+ TestJSONTimeOutput();
+ TestChunk();
+ TestChunkManagerSingle();
+ TestChunkManagerWithLocalLimit();
+ TestControlledChunkManagerUpdate();
+ TestControlledChunkManagerWithLocalLimit();
+ TestChunkedBuffer();
+ TestChunkedBufferSingle();
+ TestModuloBuffer();
+ TestBlocksRingBufferAPI();
+ TestBlocksRingBufferUnderlyingBufferChanges();
+ TestBlocksRingBufferThreading();
+ TestBlocksRingBufferSerialization();
+ TestLiteralEmptyStringView();
+ TestProfilerStringView<char>();
+ TestProfilerStringView<char16_t>();
+}
+
+// Increase the depth, to a maximum (to avoid too-deep recursion).
+static constexpr size_t NextDepth(size_t aDepth) {
+ constexpr size_t MAX_DEPTH = 128;
+ return (aDepth < MAX_DEPTH) ? (aDepth + 1) : aDepth;
+}
+
+Atomic<bool, Relaxed> sStopFibonacci;
+
+// Compute fibonacci the hard way (recursively: `f(n)=f(n-1)+f(n-2)`), and
+// prevent inlining.
+// The template parameter makes each depth be a separate function, to better
+// distinguish them in the profiler output.
+template <size_t DEPTH = 0>
+MOZ_NEVER_INLINE unsigned long long Fibonacci(unsigned long long n) {
+ AUTO_BASE_PROFILER_LABEL_DYNAMIC_STRING("fib", OTHER, std::to_string(DEPTH));
+ if (n == 0) {
+ return 0;
+ }
+ if (n == 1) {
+ return 1;
+ }
+ if (DEPTH < 5 && sStopFibonacci) {
+ return 1'000'000'000;
+ }
+ TimeStamp start = TimeStamp::Now();
+ static constexpr size_t MAX_MARKER_DEPTH = 10;
+ unsigned long long f2 = Fibonacci<NextDepth(DEPTH)>(n - 2);
+ if (DEPTH == 0) {
+ BASE_PROFILER_MARKER_UNTYPED("Half-way through Fibonacci", OTHER);
+ }
+ unsigned long long f1 = Fibonacci<NextDepth(DEPTH)>(n - 1);
+ if (DEPTH < MAX_MARKER_DEPTH) {
+ BASE_PROFILER_MARKER_TEXT("fib", OTHER,
+ MarkerTiming::IntervalUntilNowFrom(start),
+ std::to_string(DEPTH));
+ }
+ return f2 + f1;
+}
+
+void TestProfiler() {
+ printf("TestProfiler starting -- pid: %" PRIu64 ", tid: %" PRIu64 "\n",
+ uint64_t(baseprofiler::profiler_current_process_id().ToNumber()),
+ uint64_t(baseprofiler::profiler_current_thread_id().ToNumber()));
+ // ::SleepMilli(10000);
+
+ TestProfilerDependencies();
+
+ {
+ MOZ_RELEASE_ASSERT(!baseprofiler::profiler_is_active());
+ MOZ_RELEASE_ASSERT(!baseprofiler::profiler_thread_is_being_profiled());
+ MOZ_RELEASE_ASSERT(!baseprofiler::profiler_thread_is_sleeping());
+
+ const baseprofiler::BaseProfilerThreadId mainThreadId =
+ mozilla::baseprofiler::profiler_current_thread_id();
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::profiler_main_thread_id() ==
+ mainThreadId);
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::profiler_is_main_thread());
+
+ std::thread testThread([&]() {
+ const baseprofiler::BaseProfilerThreadId testThreadId =
+ mozilla::baseprofiler::profiler_current_thread_id();
+ MOZ_RELEASE_ASSERT(testThreadId != mainThreadId);
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::profiler_main_thread_id() !=
+ testThreadId);
+ MOZ_RELEASE_ASSERT(!mozilla::baseprofiler::profiler_is_main_thread());
+ });
+ testThread.join();
+
+ printf("profiler_start()...\n");
+ Vector<const char*> filters;
+ // Profile all registered threads.
+ MOZ_RELEASE_ASSERT(filters.append(""));
+ const uint32_t features = baseprofiler::ProfilerFeature::StackWalk;
+ baseprofiler::profiler_start(baseprofiler::BASE_PROFILER_DEFAULT_ENTRIES,
+ BASE_PROFILER_DEFAULT_INTERVAL, features,
+ filters.begin(), filters.length());
+
+ MOZ_RELEASE_ASSERT(baseprofiler::profiler_is_active());
+ MOZ_RELEASE_ASSERT(baseprofiler::profiler_thread_is_being_profiled());
+ MOZ_RELEASE_ASSERT(!baseprofiler::profiler_thread_is_sleeping());
+
+ sStopFibonacci = false;
+
+ std::thread threadFib([]() {
+ AUTO_BASE_PROFILER_REGISTER_THREAD("fibonacci");
+ SleepMilli(5);
+ auto cause = baseprofiler::profiler_capture_backtrace();
+ AUTO_BASE_PROFILER_MARKER_TEXT(
+ "fibonacci", OTHER, MarkerStack::TakeBacktrace(std::move(cause)),
+ "First leaf call");
+ static const unsigned long long fibStart = 37;
+ printf("Fibonacci(%llu)...\n", fibStart);
+ AUTO_BASE_PROFILER_LABEL("Label around Fibonacci", OTHER);
+
+ unsigned long long f = Fibonacci(fibStart);
+ printf("Fibonacci(%llu) = %llu\n", fibStart, f);
+ });
+
+ std::thread threadCancelFib([]() {
+ AUTO_BASE_PROFILER_REGISTER_THREAD("fibonacci canceller");
+ SleepMilli(5);
+ AUTO_BASE_PROFILER_MARKER_TEXT("fibonacci", OTHER, {}, "Canceller");
+ static const int waitMaxSeconds = 10;
+ for (int i = 0; i < waitMaxSeconds; ++i) {
+ if (sStopFibonacci) {
+ AUTO_BASE_PROFILER_LABEL_DYNAMIC_STRING("fibCancel", OTHER,
+ std::to_string(i));
+ return;
+ }
+ AUTO_BASE_PROFILER_THREAD_SLEEP;
+ SleepMilli(1000);
+ }
+ AUTO_BASE_PROFILER_LABEL_DYNAMIC_STRING("fibCancel", OTHER,
+ "Cancelling!");
+ sStopFibonacci = true;
+ });
+
+ {
+ AUTO_BASE_PROFILER_MARKER_TEXT("main thread", OTHER, {},
+ "joining fibonacci thread");
+ AUTO_BASE_PROFILER_THREAD_SLEEP;
+ threadFib.join();
+ }
+
+ {
+ AUTO_BASE_PROFILER_MARKER_TEXT("main thread", OTHER, {},
+ "joining fibonacci-canceller thread");
+ sStopFibonacci = true;
+ AUTO_BASE_PROFILER_THREAD_SLEEP;
+ threadCancelFib.join();
+ }
+
+ // Just making sure all payloads know how to (de)serialize and stream.
+
+ MOZ_RELEASE_ASSERT(
+ baseprofiler::AddMarker("markers 2.0 without options (omitted)",
+ mozilla::baseprofiler::category::OTHER));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "markers 2.0 without options (implicit brace-init)",
+ mozilla::baseprofiler::category::OTHER, {}));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "markers 2.0 without options (explicit init)",
+ mozilla::baseprofiler::category::OTHER, MarkerOptions()));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "markers 2.0 without options (explicit brace-init)",
+ mozilla::baseprofiler::category::OTHER, MarkerOptions{}));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "markers 2.0 with one option (implicit)",
+ mozilla::baseprofiler::category::OTHER, MarkerInnerWindowId(123)));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "markers 2.0 with one option (implicit brace-init)",
+ mozilla::baseprofiler::category::OTHER, {MarkerInnerWindowId(123)}));
+
+ MOZ_RELEASE_ASSERT(
+ baseprofiler::AddMarker("markers 2.0 with one option (explicit init)",
+ mozilla::baseprofiler::category::OTHER,
+ MarkerOptions(MarkerInnerWindowId(123))));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "markers 2.0 with one option (explicit brace-init)",
+ mozilla::baseprofiler::category::OTHER,
+ MarkerOptions{MarkerInnerWindowId(123)}));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "markers 2.0 with two options (implicit brace-init)",
+ mozilla::baseprofiler::category::OTHER,
+ {MarkerInnerWindowId(123), MarkerStack::Capture()}));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "markers 2.0 with two options (explicit init)",
+ mozilla::baseprofiler::category::OTHER,
+ MarkerOptions(MarkerInnerWindowId(123), MarkerStack::Capture())));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "markers 2.0 with two options (explicit brace-init)",
+ mozilla::baseprofiler::category::OTHER,
+ MarkerOptions{MarkerInnerWindowId(123), MarkerStack::Capture()}));
+
+ MOZ_RELEASE_ASSERT(
+ baseprofiler::AddMarker("default-templated markers 2.0 without options",
+ mozilla::baseprofiler::category::OTHER));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "default-templated markers 2.0 with option",
+ mozilla::baseprofiler::category::OTHER, MarkerInnerWindowId(123)));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "explicitly-default-templated markers 2.0 without options",
+ mozilla::baseprofiler::category::OTHER, {},
+ ::mozilla::baseprofiler::markers::NoPayload{}));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "explicitly-default-templated markers 2.0 with option",
+ mozilla::baseprofiler::category::OTHER, MarkerInnerWindowId(123),
+ ::mozilla::baseprofiler::markers::NoPayload{}));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "tracing", mozilla::baseprofiler::category::OTHER, {},
+ mozilla::baseprofiler::markers::Tracing{}, "category"));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "text", mozilla::baseprofiler::category::OTHER, {},
+ mozilla::baseprofiler::markers::TextMarker{}, "text text"));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "media sample", mozilla::baseprofiler::category::OTHER, {},
+ mozilla::baseprofiler::markers::MediaSampleMarker{}, 123, 456, 789));
+
+ MOZ_RELEASE_ASSERT(baseprofiler::AddMarker(
+ "video falling behind", mozilla::baseprofiler::category::OTHER, {},
+ mozilla::baseprofiler::markers::VideoFallingBehindMarker{}, 123, 456));
+
+ printf("Sleep 1s...\n");
+ {
+ AUTO_BASE_PROFILER_THREAD_SLEEP;
+ SleepMilli(1000);
+ }
+
+ printf("baseprofiler_pause()...\n");
+ baseprofiler::profiler_pause();
+
+ MOZ_RELEASE_ASSERT(!baseprofiler::profiler_thread_is_being_profiled());
+
+ Maybe<baseprofiler::ProfilerBufferInfo> info =
+ baseprofiler::profiler_get_buffer_info();
+ MOZ_RELEASE_ASSERT(info.isSome());
+ printf("Profiler buffer range: %llu .. %llu (%llu bytes)\n",
+ static_cast<unsigned long long>(info->mRangeStart),
+ static_cast<unsigned long long>(info->mRangeEnd),
+ // sizeof(ProfileBufferEntry) == 9
+ (static_cast<unsigned long long>(info->mRangeEnd) -
+ static_cast<unsigned long long>(info->mRangeStart)) *
+ 9);
+ printf("Stats: min(us) .. mean(us) .. max(us) [count]\n");
+ printf("- Intervals: %7.1f .. %7.1f .. %7.1f [%u]\n",
+ info->mIntervalsUs.min,
+ info->mIntervalsUs.sum / info->mIntervalsUs.n,
+ info->mIntervalsUs.max, info->mIntervalsUs.n);
+ printf("- Overheads: %7.1f .. %7.1f .. %7.1f [%u]\n",
+ info->mOverheadsUs.min,
+ info->mOverheadsUs.sum / info->mOverheadsUs.n,
+ info->mOverheadsUs.max, info->mOverheadsUs.n);
+ printf(" - Locking: %7.1f .. %7.1f .. %7.1f [%u]\n",
+ info->mLockingsUs.min, info->mLockingsUs.sum / info->mLockingsUs.n,
+ info->mLockingsUs.max, info->mLockingsUs.n);
+ printf(" - Clearning: %7.1f .. %7.1f .. %7.1f [%u]\n",
+ info->mCleaningsUs.min,
+ info->mCleaningsUs.sum / info->mCleaningsUs.n,
+ info->mCleaningsUs.max, info->mCleaningsUs.n);
+ printf(" - Counters: %7.1f .. %7.1f .. %7.1f [%u]\n",
+ info->mCountersUs.min, info->mCountersUs.sum / info->mCountersUs.n,
+ info->mCountersUs.max, info->mCountersUs.n);
+ printf(" - Threads: %7.1f .. %7.1f .. %7.1f [%u]\n",
+ info->mThreadsUs.min, info->mThreadsUs.sum / info->mThreadsUs.n,
+ info->mThreadsUs.max, info->mThreadsUs.n);
+
+ printf("baseprofiler_get_profile()...\n");
+ UniquePtr<char[]> profile = baseprofiler::profiler_get_profile();
+
+ // Use a string view over the profile contents, for easier testing.
+ std::string_view profileSV = profile.get();
+
+ constexpr const auto svnpos = std::string_view::npos;
+ // TODO: Properly parse profile and check fields.
+ // Check for some expected marker schema JSON output.
+ MOZ_RELEASE_ASSERT(profileSV.find("\"markerSchema\":[") != svnpos);
+ MOZ_RELEASE_ASSERT(profileSV.find("\"name\":\"Text\",") != svnpos);
+ MOZ_RELEASE_ASSERT(profileSV.find("\"name\":\"tracing\",") != svnpos);
+ MOZ_RELEASE_ASSERT(profileSV.find("\"name\":\"MediaSample\",") != svnpos);
+ MOZ_RELEASE_ASSERT(profileSV.find("\"display\":[") != svnpos);
+ MOZ_RELEASE_ASSERT(profileSV.find("\"marker-chart\"") != svnpos);
+ MOZ_RELEASE_ASSERT(profileSV.find("\"marker-table\"") != svnpos);
+ MOZ_RELEASE_ASSERT(profileSV.find("\"format\":\"string\"") != svnpos);
+ // TODO: Add more checks for what's expected in the profile. Some of them
+ // are done in gtest's.
+
+ printf("baseprofiler_save_profile_to_file()...\n");
+ baseprofiler::baseprofiler_save_profile_to_file(
+ "TestProfiler_profile.json");
+
+ printf("profiler_stop()...\n");
+ baseprofiler::profiler_stop();
+
+ MOZ_RELEASE_ASSERT(!baseprofiler::profiler_is_active());
+ MOZ_RELEASE_ASSERT(!baseprofiler::profiler_thread_is_being_profiled());
+ MOZ_RELEASE_ASSERT(!baseprofiler::profiler_thread_is_sleeping());
+
+ printf("profiler_shutdown()...\n");
+ }
+
+ printf("TestProfiler done\n");
+}
+
+// Minimal string escaping, similar to how C++ stringliterals should be entered,
+// to help update comparison strings in tests below.
+void printEscaped(std::string_view aString) {
+ for (const char c : aString) {
+ switch (c) {
+ case '\n':
+ fprintf(stderr, "\\n\n");
+ break;
+ case '"':
+ fprintf(stderr, "\\\"");
+ break;
+ case '\\':
+ fprintf(stderr, "\\\\");
+ break;
+ default:
+ if (c >= ' ' && c <= '~') {
+ fprintf(stderr, "%c", c);
+ } else {
+ fprintf(stderr, "\\x%02x", unsigned(c));
+ }
+ break;
+ }
+ }
+}
+
+// Run aF(SpliceableChunkedJSONWriter&, UniqueJSONStrings&) from inside a JSON
+// array, then output the string table, and compare the full output to
+// aExpected.
+template <typename F>
+static void VerifyUniqueStringContents(
+ F&& aF, std::string_view aExpectedData,
+ std::string_view aExpectedUniqueStrings,
+ mozilla::baseprofiler::UniqueJSONStrings* aUniqueStringsOrNull = nullptr) {
+ mozilla::baseprofiler::SpliceableChunkedJSONWriter writer{
+ FailureLatchInfallibleSource::Singleton()};
+
+ MOZ_RELEASE_ASSERT(!writer.ChunkedWriteFunc().Fallible());
+ MOZ_RELEASE_ASSERT(!writer.ChunkedWriteFunc().Failed());
+ MOZ_RELEASE_ASSERT(!writer.ChunkedWriteFunc().GetFailure());
+ MOZ_RELEASE_ASSERT(&writer.ChunkedWriteFunc().SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+ MOZ_RELEASE_ASSERT(
+ &std::as_const(writer.ChunkedWriteFunc()).SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+
+ MOZ_RELEASE_ASSERT(!writer.Fallible());
+ MOZ_RELEASE_ASSERT(!writer.Failed());
+ MOZ_RELEASE_ASSERT(!writer.GetFailure());
+ MOZ_RELEASE_ASSERT(&writer.SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+ MOZ_RELEASE_ASSERT(&std::as_const(writer).SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+
+ // By default use a local UniqueJSONStrings, otherwise use the one provided.
+ mozilla::baseprofiler::UniqueJSONStrings localUniqueStrings{
+ FailureLatchInfallibleSource::Singleton()};
+ MOZ_RELEASE_ASSERT(!localUniqueStrings.Fallible());
+ MOZ_RELEASE_ASSERT(!localUniqueStrings.Failed());
+ MOZ_RELEASE_ASSERT(!localUniqueStrings.GetFailure());
+ MOZ_RELEASE_ASSERT(&localUniqueStrings.SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+ MOZ_RELEASE_ASSERT(&std::as_const(localUniqueStrings).SourceFailureLatch() ==
+ &mozilla::FailureLatchInfallibleSource::Singleton());
+
+ mozilla::baseprofiler::UniqueJSONStrings& uniqueStrings =
+ aUniqueStringsOrNull ? *aUniqueStringsOrNull : localUniqueStrings;
+ MOZ_RELEASE_ASSERT(!uniqueStrings.Failed());
+ MOZ_RELEASE_ASSERT(!uniqueStrings.GetFailure());
+
+ writer.Start();
+ {
+ writer.StartArrayProperty("data");
+ { std::forward<F>(aF)(writer, uniqueStrings); }
+ writer.EndArray();
+
+ writer.StartArrayProperty("stringTable");
+ { uniqueStrings.SpliceStringTableElements(writer); }
+ writer.EndArray();
+ }
+ writer.End();
+
+ MOZ_RELEASE_ASSERT(!uniqueStrings.Failed());
+ MOZ_RELEASE_ASSERT(!uniqueStrings.GetFailure());
+
+ MOZ_RELEASE_ASSERT(!writer.ChunkedWriteFunc().Failed());
+ MOZ_RELEASE_ASSERT(!writer.ChunkedWriteFunc().GetFailure());
+
+ MOZ_RELEASE_ASSERT(!writer.Failed());
+ MOZ_RELEASE_ASSERT(!writer.GetFailure());
+
+ UniquePtr<char[]> jsonString = writer.ChunkedWriteFunc().CopyData();
+ MOZ_RELEASE_ASSERT(jsonString);
+ std::string_view jsonStringView(jsonString.get());
+ const size_t length = writer.ChunkedWriteFunc().Length();
+ MOZ_RELEASE_ASSERT(length == jsonStringView.length());
+ std::string expected = "{\"data\":[";
+ expected += aExpectedData;
+ expected += "],\"stringTable\":[";
+ expected += aExpectedUniqueStrings;
+ expected += "]}";
+ if (jsonStringView != expected) {
+ fprintf(stderr,
+ "Expected:\n"
+ "------\n");
+ printEscaped(expected);
+ fprintf(stderr,
+ "\n"
+ "------\n"
+ "Actual:\n"
+ "------\n");
+ printEscaped(jsonStringView);
+ fprintf(stderr,
+ "\n"
+ "------\n");
+ }
+ MOZ_RELEASE_ASSERT(jsonStringView == expected);
+}
+
+void TestUniqueJSONStrings() {
+ printf("TestUniqueJSONStrings...\n");
+
+ using SCJW = mozilla::baseprofiler::SpliceableChunkedJSONWriter;
+ using UJS = mozilla::baseprofiler::UniqueJSONStrings;
+
+ // Empty everything.
+ VerifyUniqueStringContents([](SCJW& aWriter, UJS& aUniqueStrings) {}, "", "");
+
+ // Empty unique strings.
+ VerifyUniqueStringContents(
+ [](SCJW& aWriter, UJS& aUniqueStrings) {
+ aWriter.StringElement("string");
+ },
+ R"("string")", "");
+
+ // One unique string.
+ VerifyUniqueStringContents(
+ [](SCJW& aWriter, UJS& aUniqueStrings) {
+ aUniqueStrings.WriteElement(aWriter, "string");
+ },
+ "0", R"("string")");
+
+ // One unique string twice.
+ VerifyUniqueStringContents(
+ [](SCJW& aWriter, UJS& aUniqueStrings) {
+ aUniqueStrings.WriteElement(aWriter, "string");
+ aUniqueStrings.WriteElement(aWriter, "string");
+ },
+ "0,0", R"("string")");
+
+ // Two single unique strings.
+ VerifyUniqueStringContents(
+ [](SCJW& aWriter, UJS& aUniqueStrings) {
+ aUniqueStrings.WriteElement(aWriter, "string0");
+ aUniqueStrings.WriteElement(aWriter, "string1");
+ },
+ "0,1", R"("string0","string1")");
+
+ // Two unique strings with repetition.
+ VerifyUniqueStringContents(
+ [](SCJW& aWriter, UJS& aUniqueStrings) {
+ aUniqueStrings.WriteElement(aWriter, "string0");
+ aUniqueStrings.WriteElement(aWriter, "string1");
+ aUniqueStrings.WriteElement(aWriter, "string0");
+ },
+ "0,1,0", R"("string0","string1")");
+
+ // Mix some object properties, for coverage.
+ VerifyUniqueStringContents(
+ [](SCJW& aWriter, UJS& aUniqueStrings) {
+ aUniqueStrings.WriteElement(aWriter, "string0");
+ aWriter.StartObjectElement();
+ {
+ aUniqueStrings.WriteProperty(aWriter, "p0", "prop");
+ aUniqueStrings.WriteProperty(aWriter, "p1", "string0");
+ aUniqueStrings.WriteProperty(aWriter, "p2", "prop");
+ }
+ aWriter.EndObject();
+ aUniqueStrings.WriteElement(aWriter, "string1");
+ aUniqueStrings.WriteElement(aWriter, "string0");
+ aUniqueStrings.WriteElement(aWriter, "prop");
+ },
+ R"(0,{"p0":1,"p1":0,"p2":1},2,0,1)", R"("string0","prop","string1")");
+
+ // Unique string table with pre-existing data.
+ {
+ UJS ujs{FailureLatchInfallibleSource::Singleton()};
+ {
+ SCJW writer{FailureLatchInfallibleSource::Singleton()};
+ ujs.WriteElement(writer, "external0");
+ ujs.WriteElement(writer, "external1");
+ ujs.WriteElement(writer, "external0");
+ }
+ VerifyUniqueStringContents(
+ [](SCJW& aWriter, UJS& aUniqueStrings) {
+ aUniqueStrings.WriteElement(aWriter, "string0");
+ aUniqueStrings.WriteElement(aWriter, "string1");
+ aUniqueStrings.WriteElement(aWriter, "string0");
+ },
+ "2,3,2", R"("external0","external1","string0","string1")", &ujs);
+ }
+
+ // Unique string table with pre-existing data from another table.
+ {
+ UJS ujs{FailureLatchInfallibleSource::Singleton()};
+ {
+ SCJW writer{FailureLatchInfallibleSource::Singleton()};
+ ujs.WriteElement(writer, "external0");
+ ujs.WriteElement(writer, "external1");
+ ujs.WriteElement(writer, "external0");
+ }
+ UJS ujsCopy(FailureLatchInfallibleSource::Singleton(), ujs,
+ mozilla::ProgressLogger{});
+ VerifyUniqueStringContents(
+ [](SCJW& aWriter, UJS& aUniqueStrings) {
+ aUniqueStrings.WriteElement(aWriter, "string0");
+ aUniqueStrings.WriteElement(aWriter, "string1");
+ aUniqueStrings.WriteElement(aWriter, "string0");
+ },
+ "2,3,2", R"("external0","external1","string0","string1")", &ujs);
+ }
+
+ // Unique string table through SpliceableJSONWriter.
+ VerifyUniqueStringContents(
+ [](SCJW& aWriter, UJS& aUniqueStrings) {
+ aWriter.SetUniqueStrings(aUniqueStrings);
+ aWriter.UniqueStringElement("string0");
+ aWriter.StartObjectElement();
+ {
+ aWriter.UniqueStringProperty("p0", "prop");
+ aWriter.UniqueStringProperty("p1", "string0");
+ aWriter.UniqueStringProperty("p2", "prop");
+ }
+ aWriter.EndObject();
+ aWriter.UniqueStringElement("string1");
+ aWriter.UniqueStringElement("string0");
+ aWriter.UniqueStringElement("prop");
+ aWriter.ResetUniqueStrings();
+ },
+ R"(0,{"p0":1,"p1":0,"p2":1},2,0,1)", R"("string0","prop","string1")");
+
+ printf("TestUniqueJSONStrings done\n");
+}
+
+void StreamMarkers(const mozilla::ProfileChunkedBuffer& aBuffer,
+ mozilla::baseprofiler::SpliceableJSONWriter& aWriter) {
+ aWriter.StartArrayProperty("data");
+ {
+ aBuffer.ReadEach([&](mozilla::ProfileBufferEntryReader& aEntryReader) {
+ mozilla::ProfileBufferEntryKind entryKind =
+ aEntryReader.ReadObject<mozilla::ProfileBufferEntryKind>();
+ MOZ_RELEASE_ASSERT(entryKind == mozilla::ProfileBufferEntryKind::Marker);
+
+ mozilla::base_profiler_markers_detail::DeserializeAfterKindAndStream(
+ aEntryReader,
+ [&](const mozilla::baseprofiler::BaseProfilerThreadId&) {
+ return &aWriter;
+ },
+ [&](mozilla::ProfileChunkedBuffer&) {
+ aWriter.StringElement("Real backtrace would be here");
+ },
+ [&](mozilla::base_profiler_markers_detail::Streaming::
+ DeserializerTag) {});
+ });
+ }
+ aWriter.EndArray();
+}
+
+void PrintMarkers(const mozilla::ProfileChunkedBuffer& aBuffer) {
+ mozilla::baseprofiler::SpliceableJSONWriter writer(
+ mozilla::MakeUnique<mozilla::baseprofiler::OStreamJSONWriteFunc>(
+ std::cout),
+ FailureLatchInfallibleSource::Singleton());
+ mozilla::baseprofiler::UniqueJSONStrings uniqueStrings{
+ FailureLatchInfallibleSource::Singleton()};
+ writer.SetUniqueStrings(uniqueStrings);
+ writer.Start();
+ {
+ StreamMarkers(aBuffer, writer);
+
+ writer.StartArrayProperty("stringTable");
+ { uniqueStrings.SpliceStringTableElements(writer); }
+ writer.EndArray();
+ }
+ writer.End();
+ writer.ResetUniqueStrings();
+}
+
+static void SubTestMarkerCategory(
+ const mozilla::MarkerCategory& aMarkerCategory,
+ const mozilla::baseprofiler::ProfilingCategoryPair& aProfilingCategoryPair,
+ const mozilla::baseprofiler::ProfilingCategory& aProfilingCategory) {
+ MOZ_RELEASE_ASSERT(aMarkerCategory.CategoryPair() == aProfilingCategoryPair,
+ "Unexpected MarkerCategory::CategoryPair()");
+
+ MOZ_RELEASE_ASSERT(
+ mozilla::MarkerCategory(aProfilingCategoryPair).CategoryPair() ==
+ aProfilingCategoryPair,
+ "MarkerCategory(<name>).CategoryPair() should return <name>");
+
+ MOZ_RELEASE_ASSERT(aMarkerCategory.GetCategory() == aProfilingCategory,
+ "Unexpected MarkerCategory::GetCategory()");
+
+ mozilla::ProfileBufferChunkManagerSingle chunkManager(512);
+ mozilla::ProfileChunkedBuffer buffer(
+ mozilla::ProfileChunkedBuffer::ThreadSafety::WithoutMutex, chunkManager);
+ mozilla::ProfileBufferBlockIndex i = buffer.PutObject(aMarkerCategory);
+ MOZ_RELEASE_ASSERT(i != mozilla::ProfileBufferBlockIndex{},
+ "Failed serialization");
+ buffer.ReadEach([&](mozilla::ProfileBufferEntryReader& aER,
+ mozilla::ProfileBufferBlockIndex aIndex) {
+ MOZ_RELEASE_ASSERT(aIndex == i, "Unexpected deserialization index");
+ const auto readCategory = aER.ReadObject<mozilla::MarkerCategory>();
+ MOZ_RELEASE_ASSERT(aER.RemainingBytes() == 0,
+ "Unexpected extra serialized bytes");
+ MOZ_RELEASE_ASSERT(readCategory.CategoryPair() == aProfilingCategoryPair,
+ "Incorrect deserialization value");
+ });
+}
+
+void TestMarkerCategory() {
+ printf("TestMarkerCategory...\n");
+
+ mozilla::ProfileBufferChunkManagerSingle chunkManager(512);
+ mozilla::ProfileChunkedBuffer buffer(
+ mozilla::ProfileChunkedBuffer::ThreadSafety::WithoutMutex, chunkManager);
+
+# define CATEGORY_ENUM_BEGIN_CATEGORY(name, labelAsString, color)
+# define CATEGORY_ENUM_SUBCATEGORY(supercategory, name, labelAsString) \
+ static_assert( \
+ std::is_same_v<decltype(mozilla::baseprofiler::category::name), \
+ const mozilla::MarkerCategory>, \
+ "baseprofiler::category::<name> should be a const MarkerCategory"); \
+ \
+ SubTestMarkerCategory( \
+ mozilla::baseprofiler::category::name, \
+ mozilla::baseprofiler::ProfilingCategoryPair::name, \
+ mozilla::baseprofiler::ProfilingCategory::supercategory);
+# define CATEGORY_ENUM_END_CATEGORY
+ MOZ_PROFILING_CATEGORY_LIST(CATEGORY_ENUM_BEGIN_CATEGORY,
+ CATEGORY_ENUM_SUBCATEGORY,
+ CATEGORY_ENUM_END_CATEGORY)
+# undef CATEGORY_ENUM_BEGIN_CATEGORY
+# undef CATEGORY_ENUM_SUBCATEGORY
+# undef CATEGORY_ENUM_END_CATEGORY
+
+ printf("TestMarkerCategory done\n");
+}
+
+void TestMarkerThreadId() {
+ printf("TestMarkerThreadId...\n");
+
+ MOZ_RELEASE_ASSERT(MarkerThreadId{}.IsUnspecified());
+ MOZ_RELEASE_ASSERT(!MarkerThreadId::MainThread().IsUnspecified());
+ MOZ_RELEASE_ASSERT(!MarkerThreadId::CurrentThread().IsUnspecified());
+
+ MOZ_RELEASE_ASSERT(!MarkerThreadId{
+ mozilla::baseprofiler::BaseProfilerThreadId::FromNumber(42)}
+ .IsUnspecified());
+ MOZ_RELEASE_ASSERT(
+ MarkerThreadId{
+ mozilla::baseprofiler::BaseProfilerThreadId::FromNumber(42)}
+ .ThreadId()
+ .ToNumber() == 42);
+
+ // We'll assume that this test runs in the main thread (which should be true
+ // when called from the `main` function).
+ MOZ_RELEASE_ASSERT(MarkerThreadId::MainThread().ThreadId() ==
+ mozilla::baseprofiler::profiler_main_thread_id());
+
+ MOZ_RELEASE_ASSERT(MarkerThreadId::CurrentThread().ThreadId() ==
+ mozilla::baseprofiler::profiler_current_thread_id());
+
+ MOZ_RELEASE_ASSERT(MarkerThreadId::CurrentThread().ThreadId() ==
+ mozilla::baseprofiler::profiler_main_thread_id());
+
+ std::thread testThread([]() {
+ MOZ_RELEASE_ASSERT(!MarkerThreadId::MainThread().IsUnspecified());
+ MOZ_RELEASE_ASSERT(!MarkerThreadId::CurrentThread().IsUnspecified());
+
+ MOZ_RELEASE_ASSERT(MarkerThreadId::MainThread().ThreadId() ==
+ mozilla::baseprofiler::profiler_main_thread_id());
+
+ MOZ_RELEASE_ASSERT(MarkerThreadId::CurrentThread().ThreadId() ==
+ mozilla::baseprofiler::profiler_current_thread_id());
+
+ MOZ_RELEASE_ASSERT(MarkerThreadId::CurrentThread().ThreadId() !=
+ mozilla::baseprofiler::profiler_main_thread_id());
+ });
+ testThread.join();
+
+ printf("TestMarkerThreadId done\n");
+}
+
+void TestMarkerNoPayload() {
+ printf("TestMarkerNoPayload...\n");
+
+ mozilla::ProfileBufferChunkManagerSingle chunkManager(512);
+ mozilla::ProfileChunkedBuffer buffer(
+ mozilla::ProfileChunkedBuffer::ThreadSafety::WithoutMutex, chunkManager);
+
+ mozilla::ProfileBufferBlockIndex i0 =
+ mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, "literal", mozilla::baseprofiler::category::OTHER_Profiling);
+ MOZ_RELEASE_ASSERT(i0);
+
+ const std::string dynamic = "dynamic";
+ mozilla::ProfileBufferBlockIndex i1 =
+ mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, dynamic,
+ mozilla::baseprofiler::category::GRAPHICS_FlushingAsyncPaints, {});
+ MOZ_RELEASE_ASSERT(i1);
+ MOZ_RELEASE_ASSERT(i1 > i0);
+
+ mozilla::ProfileBufferBlockIndex i2 =
+ mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, std::string_view("string_view"),
+ mozilla::baseprofiler::category::GRAPHICS_FlushingAsyncPaints, {});
+ MOZ_RELEASE_ASSERT(i2);
+ MOZ_RELEASE_ASSERT(i2 > i1);
+
+# ifdef DEBUG
+ buffer.Dump();
+# endif
+
+ PrintMarkers(buffer);
+
+ printf("TestMarkerNoPayload done\n");
+}
+
+void TestUserMarker() {
+ printf("TestUserMarker...\n");
+
+ // User-defined marker type with text.
+ // It's fine to define it right in the function where it's used.
+ struct MarkerTypeTestMinimal {
+ static constexpr Span<const char> MarkerTypeName() {
+ return MakeStringSpan("test-minimal");
+ }
+ static void StreamJSONMarkerData(
+ mozilla::baseprofiler::SpliceableJSONWriter& aWriter,
+ const std::string& aText) {
+ aWriter.StringProperty("text", aText);
+ }
+ static mozilla::MarkerSchema MarkerTypeDisplay() {
+ using MS = mozilla::MarkerSchema;
+ MS schema{MS::Location::MarkerChart, MS::Location::MarkerTable};
+ schema.SetTooltipLabel("tooltip for test-minimal");
+ schema.AddKeyLabelFormatSearchable("text", "Text", MS::Format::String,
+ MS::Searchable::Searchable);
+ return schema;
+ }
+ };
+
+ mozilla::ProfileBufferChunkManagerSingle chunkManager(1024);
+ mozilla::ProfileChunkedBuffer buffer(
+ mozilla::ProfileChunkedBuffer::ThreadSafety::WithoutMutex, chunkManager);
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, "test2", mozilla::baseprofiler::category::OTHER_Profiling, {},
+ MarkerTypeTestMinimal{}, std::string("payload text")));
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, "test2", mozilla::baseprofiler::category::OTHER_Profiling,
+ mozilla::MarkerThreadId(
+ mozilla::baseprofiler::BaseProfilerThreadId::FromNumber(123)),
+ MarkerTypeTestMinimal{}, std::string("ThreadId(123)")));
+
+ auto start = mozilla::TimeStamp::Now();
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, "test2", mozilla::baseprofiler::category::OTHER_Profiling,
+ mozilla::MarkerTiming::InstantAt(start), MarkerTypeTestMinimal{},
+ std::string("InstantAt(start)")));
+
+ auto then = mozilla::TimeStamp::Now();
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, "test2", mozilla::baseprofiler::category::OTHER_Profiling,
+ mozilla::MarkerTiming::IntervalStart(start), MarkerTypeTestMinimal{},
+ std::string("IntervalStart(start)")));
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, "test2", mozilla::baseprofiler::category::OTHER_Profiling,
+ mozilla::MarkerTiming::IntervalEnd(then), MarkerTypeTestMinimal{},
+ std::string("IntervalEnd(then)")));
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, "test2", mozilla::baseprofiler::category::OTHER_Profiling,
+ mozilla::MarkerTiming::Interval(start, then), MarkerTypeTestMinimal{},
+ std::string("Interval(start, then)")));
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, "test2", mozilla::baseprofiler::category::OTHER_Profiling,
+ mozilla::MarkerTiming::IntervalUntilNowFrom(start),
+ MarkerTypeTestMinimal{}, std::string("IntervalUntilNowFrom(start)")));
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, "test2", mozilla::baseprofiler::category::OTHER_Profiling,
+ mozilla::MarkerStack::NoStack(), MarkerTypeTestMinimal{},
+ std::string("NoStack")));
+ // Note: We cannot test stack-capture here, because the profiler is not
+ // initialized.
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, "test2", mozilla::baseprofiler::category::OTHER_Profiling,
+ mozilla::MarkerInnerWindowId(123), MarkerTypeTestMinimal{},
+ std::string("InnerWindowId(123)")));
+
+# ifdef DEBUG
+ buffer.Dump();
+# endif
+
+ PrintMarkers(buffer);
+
+ printf("TestUserMarker done\n");
+}
+
+void TestPredefinedMarkers() {
+ printf("TestPredefinedMarkers...\n");
+
+ mozilla::ProfileBufferChunkManagerSingle chunkManager(1024);
+ mozilla::ProfileChunkedBuffer buffer(
+ mozilla::ProfileChunkedBuffer::ThreadSafety::WithoutMutex, chunkManager);
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, std::string_view("tracing"),
+ mozilla::baseprofiler::category::OTHER, {},
+ mozilla::baseprofiler::markers::Tracing{}, "category"));
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, std::string_view("text"), mozilla::baseprofiler::category::OTHER,
+ {}, mozilla::baseprofiler::markers::TextMarker{}, "text text"));
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, std::string_view("media"), mozilla::baseprofiler::category::OTHER,
+ {}, mozilla::baseprofiler::markers::MediaSampleMarker{}, 123, 456, 789));
+
+ MOZ_RELEASE_ASSERT(mozilla::baseprofiler::AddMarkerToBuffer(
+ buffer, std::string_view("media"), mozilla::baseprofiler::category::OTHER,
+ {}, mozilla::baseprofiler::markers::VideoFallingBehindMarker{}, 123,
+ 456));
+
+# ifdef DEBUG
+ buffer.Dump();
+# endif
+
+ PrintMarkers(buffer);
+
+ printf("TestPredefinedMarkers done\n");
+}
+
+void TestProfilerMarkers() {
+ printf(
+ "TestProfilerMarkers -- pid: %" PRIu64 ", tid: %" PRIu64 "\n",
+ uint64_t(mozilla::baseprofiler::profiler_current_process_id().ToNumber()),
+ uint64_t(mozilla::baseprofiler::profiler_current_thread_id().ToNumber()));
+ // ::SleepMilli(10000);
+
+ TestUniqueJSONStrings();
+ TestMarkerCategory();
+ TestMarkerThreadId();
+ TestMarkerNoPayload();
+ TestUserMarker();
+ TestPredefinedMarkers();
+
+ printf("TestProfilerMarkers done\n");
+}
+
+#else // MOZ_GECKO_PROFILER
+
+// Testing that macros are still #defined (but do nothing) when
+// MOZ_GECKO_PROFILER is disabled.
+void TestProfiler() {
+ // These don't need to make sense, we just want to know that they're defined
+ // and don't do anything.
+
+# ifndef AUTO_BASE_PROFILER_INIT
+# error AUTO_BASE_PROFILER_INIT not #defined
+# endif // AUTO_BASE_PROFILER_INIT
+ AUTO_BASE_PROFILER_INIT;
+
+# ifndef AUTO_BASE_PROFILER_MARKER_TEXT
+# error AUTO_BASE_PROFILER_MARKER_TEXT not #defined
+# endif // AUTO_BASE_PROFILER_MARKER_TEXT
+
+# ifndef AUTO_BASE_PROFILER_LABEL
+# error AUTO_BASE_PROFILER_LABEL not #defined
+# endif // AUTO_BASE_PROFILER_LABEL
+
+# ifndef AUTO_BASE_PROFILER_THREAD_SLEEP
+# error AUTO_BASE_PROFILER_THREAD_SLEEP not #defined
+# endif // AUTO_BASE_PROFILER_THREAD_SLEEP
+ AUTO_BASE_PROFILER_THREAD_SLEEP;
+
+# ifndef BASE_PROFILER_MARKER_UNTYPED
+# error BASE_PROFILER_MARKER_UNTYPED not #defined
+# endif // BASE_PROFILER_MARKER_UNTYPED
+
+# ifndef BASE_PROFILER_MARKER
+# error BASE_PROFILER_MARKER not #defined
+# endif // BASE_PROFILER_MARKER
+
+# ifndef BASE_PROFILER_MARKER_TEXT
+# error BASE_PROFILER_MARKER_TEXT not #defined
+# endif // BASE_PROFILER_MARKER_TEXT
+
+ MOZ_RELEASE_ASSERT(!mozilla::baseprofiler::profiler_get_backtrace(),
+ "profiler_get_backtrace should return nullptr");
+ mozilla::ProfileChunkedBuffer buffer(
+ mozilla::ProfileChunkedBuffer::ThreadSafety::WithoutMutex);
+ MOZ_RELEASE_ASSERT(!mozilla::baseprofiler::profiler_capture_backtrace_into(
+ buffer, mozilla::StackCaptureOptions::Full),
+ "profiler_capture_backtrace_into should return false");
+ MOZ_RELEASE_ASSERT(!mozilla::baseprofiler::profiler_capture_backtrace(),
+ "profiler_capture_backtrace should return nullptr");
+}
+
+// Testing that macros are still #defined (but do nothing) when
+// MOZ_GECKO_PROFILER is disabled.
+void TestProfilerMarkers() {
+ // These don't need to make sense, we just want to know that they're defined
+ // and don't do anything.
+}
+
+#endif // MOZ_GECKO_PROFILER else
+
+#if defined(XP_WIN)
+int wmain()
+#else
+int main()
+#endif // defined(XP_WIN)
+{
+#ifdef MOZ_GECKO_PROFILER
+ printf("BaseTestProfiler -- pid: %" PRIu64 ", tid: %" PRIu64 "\n",
+ uint64_t(baseprofiler::profiler_current_process_id().ToNumber()),
+ uint64_t(baseprofiler::profiler_current_thread_id().ToNumber()));
+ // ::SleepMilli(10000);
+#endif // MOZ_GECKO_PROFILER
+
+ TestFailureLatch();
+ TestProfilerUtils();
+ TestBaseAndProfilerDetail();
+ TestSharedMutex();
+ TestProportionValue();
+ TestProgressLogger();
+ // Note that there are two `TestProfiler{,Markers}` functions above, depending
+ // on whether MOZ_GECKO_PROFILER is #defined.
+ {
+ printf("profiler_init()...\n");
+ AUTO_BASE_PROFILER_INIT;
+
+ TestProfiler();
+ TestProfilerMarkers();
+ }
+
+ return 0;
+}
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