Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 105 insertions, 0 deletions

diff --git a/mozglue/baseprofiler/public/ProfileBufferEntryKinds.h b/mozglue/baseprofiler/public/ProfileBufferEntryKinds.h
new file mode 100644
index 0000000000..cd5912c49b
--- /dev/null
+++ b/mozglue/baseprofiler/public/ProfileBufferEntryKinds.h
@@ -0,0 +1,105 @@
+/* -*- Mode: C++; tab-width: 2; 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/. */
+
+#ifndef ProfileBufferEntryKinds_h
+#define ProfileBufferEntryKinds_h
+
+#include "mozilla/BaseProfilerUtils.h"
+
+#include <cstdint>
+
+namespace mozilla {
+
+// This is equal to sizeof(double), which is the largest non-char variant in
+// |u|.
+static constexpr size_t ProfileBufferEntryNumChars = 8;
+
+// NOTE!  If you add entries, you need to verify if they need to be added to the
+// switch statement in DuplicateLastSample!
+// This will evaluate the MACRO with (KIND, TYPE, SIZE)
+#define FOR_EACH_PROFILE_BUFFER_ENTRY_KIND(MACRO)                 \
+  MACRO(CategoryPair, int, sizeof(int))                           \
+  MACRO(CollectionStart, double, sizeof(double))                  \
+  MACRO(CollectionEnd, double, sizeof(double))                    \
+  MACRO(Label, const char*, sizeof(const char*))                  \
+  MACRO(FrameFlags, uint64_t, sizeof(uint64_t))                   \
+  MACRO(DynamicStringFragment, char*, ProfileBufferEntryNumChars) \
+  MACRO(JitReturnAddr, void*, sizeof(void*))                      \
+  MACRO(InnerWindowID, uint64_t, sizeof(uint64_t))                \
+  MACRO(LineNumber, int, sizeof(int))                             \
+  MACRO(ColumnNumber, int, sizeof(int))                           \
+  MACRO(NativeLeafAddr, void*, sizeof(void*))                     \
+  MACRO(Pause, double, sizeof(double))                            \
+  MACRO(Resume, double, sizeof(double))                           \
+  MACRO(PauseSampling, double, sizeof(double))                    \
+  MACRO(ResumeSampling, double, sizeof(double))                   \
+  MACRO(Responsiveness, double, sizeof(double))                   \
+  MACRO(ThreadId, ::mozilla::baseprofiler::BaseProfilerThreadId,  \
+        sizeof(::mozilla::baseprofiler::BaseProfilerThreadId))    \
+  MACRO(Time, double, sizeof(double))                             \
+  MACRO(TimeBeforeCompactStack, double, sizeof(double))           \
+  MACRO(TimeBeforeSameSample, double, sizeof(double))             \
+  MACRO(CounterId, void*, sizeof(void*))                          \
+  MACRO(CounterKey, uint64_t, sizeof(uint64_t))                   \
+  MACRO(Number, uint64_t, sizeof(uint64_t))                       \
+  MACRO(Count, int64_t, sizeof(int64_t))                          \
+  MACRO(ProfilerOverheadTime, double, sizeof(double))             \
+  MACRO(ProfilerOverheadDuration, double, sizeof(double))
+
+// The `Kind` is a single byte identifying the type of data that is actually
+// stored in a `ProfileBufferEntry`, as per the list in
+// `FOR_EACH_PROFILE_BUFFER_ENTRY_KIND`.
+//
+// This byte is also used to identify entries in ProfileChunkedBuffer blocks,
+// for both "legacy" entries that do contain a `ProfileBufferEntry`, and for
+// new types of entries that may carry more data of different types.
+// TODO: Eventually each type of "legacy" entry should be replaced with newer,
+// more efficient kinds of entries (e.g., stack frames could be stored in one
+// bigger entry, instead of multiple `ProfileBufferEntry`s); then we could
+// discard `ProfileBufferEntry` and move this enum to a more appropriate spot.
+enum class ProfileBufferEntryKind : uint8_t {
+  INVALID = 0,
+#define KIND(KIND, TYPE, SIZE) KIND,
+  FOR_EACH_PROFILE_BUFFER_ENTRY_KIND(KIND)
+#undef KIND
+
+  // Any value under `LEGACY_LIMIT` represents a `ProfileBufferEntry`.
+  LEGACY_LIMIT,
+
+  // Any value starting here does *not* represent a `ProfileBufferEntry` and
+  // requires separate decoding and handling.
+
+  // Markers and their data.
+  Marker = LEGACY_LIMIT,
+
+  // Entry with "running times", such as CPU usage measurements.
+  // Optional between TimeBeforeX and X.
+  RunningTimes,
+
+  // Optional between TimeBeforeX and X.
+  UnresponsiveDurationMs,
+
+  // Collection of legacy stack entries, must follow a ThreadId and
+  // TimeBeforeCompactStack (which are not included in the CompactStack;
+  // TimeBeforeCompactStack is equivalent to Time, but indicates that a
+  // CompactStack follows shortly afterwards).
+  CompactStack,
+
+  // Indicates that this sample is identical to the previous one, must follow a
+  // ThreadId and TimeBeforeSameSample.
+  SameSample,
+
+  MODERN_LIMIT
+};
+
+enum class MarkerPayloadType : uint8_t {
+  Cpp,
+  Rust,
+};
+
+}  // namespace mozilla
+
+#endif  // ProfileBufferEntryKinds_h