Adding upstream version 115.7.0esr.upstream/115.7.0esr

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

1 files changed, 355 insertions, 0 deletions

diff --git a/tools/profiler/public/ProfilerMarkers.h b/tools/profiler/public/ProfilerMarkers.h
new file mode 100644
index 0000000000..ca53c3f189
--- /dev/null
+++ b/tools/profiler/public/ProfilerMarkers.h
@@ -0,0 +1,355 @@
+/* -*- 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/. */
+
+// Markers are useful to delimit something important happening such as the first
+// paint. Unlike labels, which are only recorded in the profile buffer if a
+// sample is collected while the label is on the label stack, markers will
+// always be recorded in the profile buffer.
+//
+// This header contains definitions necessary to add markers to the Gecko
+// Profiler buffer.
+//
+// It #include's "mozilla/BaseProfilerMarkers.h", see that header for base
+// definitions necessary to create marker types.
+//
+// If common marker types are needed, #include "ProfilerMarkerTypes.h" instead.
+//
+// But if you want to create your own marker type locally, you can #include this
+// header only; look at ProfilerMarkerTypes.h for examples of how to define
+// types.
+//
+// To then record markers:
+// - Use `baseprofiler::AddMarker(...)` from mozglue or other libraries that are
+//   outside of xul, especially if they may happen outside of xpcom's lifetime
+//   (typically startup, shutdown, or tests).
+// - Otherwise #include "ProfilerMarkers.h" instead, and use
+//   `profiler_add_marker(...)`.
+// See these functions for more details.
+
+#ifndef ProfilerMarkers_h
+#define ProfilerMarkers_h
+
+#include "mozilla/BaseProfilerMarkers.h"
+#include "mozilla/ProfilerMarkersDetail.h"
+#include "mozilla/ProfilerLabels.h"
+#include "nsJSUtils.h"  // for nsJSUtils::GetCurrentlyRunningCodeInnerWindowID
+
+class nsIDocShell;
+
+namespace geckoprofiler::markers::detail {
+// Please do not use anything from the detail namespace outside the profiler.
+
+#ifdef MOZ_GECKO_PROFILER
+mozilla::Maybe<uint64_t> profiler_get_inner_window_id_from_docshell(
+    nsIDocShell* aDocshell);
+#else
+inline mozilla::Maybe<uint64_t> profiler_get_inner_window_id_from_docshell(
+    nsIDocShell* aDocshell) {
+  return mozilla::Nothing();
+}
+#endif  // MOZ_GECKO_PROFILER
+
+}  // namespace geckoprofiler::markers::detail
+
+// This is a helper function to get the Inner Window ID from DocShell but it's
+// not a recommended method to get it and it's not encouraged to use this
+// function. If there is a computed inner window ID, `window`, or `Document`
+// available in the call site, please use them. Use this function as a last
+// resort.
+inline mozilla::MarkerInnerWindowId MarkerInnerWindowIdFromDocShell(
+    nsIDocShell* aDocshell) {
+  mozilla::Maybe<uint64_t> id = geckoprofiler::markers::detail::
+      profiler_get_inner_window_id_from_docshell(aDocshell);
+  if (!id) {
+    return mozilla::MarkerInnerWindowId::NoId();
+  }
+  return mozilla::MarkerInnerWindowId(*id);
+}
+
+// This is a helper function to get the Inner Window ID from a JS Context but
+// it's not a recommended method to get it and it's not encouraged to use this
+// function. If there is a computed inner window ID, `window`, or `Document`
+// available in the call site, please use them. Use this function as a last
+// resort.
+inline mozilla::MarkerInnerWindowId MarkerInnerWindowIdFromJSContext(
+    JSContext* aContext) {
+  return mozilla::MarkerInnerWindowId(
+      nsJSUtils::GetCurrentlyRunningCodeInnerWindowID(aContext));
+}
+
+// Bring category names from Base Profiler into the geckoprofiler::category
+// namespace, for consistency with other Gecko Profiler identifiers.
+namespace geckoprofiler::category {
+using namespace ::mozilla::baseprofiler::category;
+}
+
+#ifdef MOZ_GECKO_PROFILER
+// Forward-declaration. TODO: Move to more common header, see bug 1681416.
+bool profiler_capture_backtrace_into(
+    mozilla::ProfileChunkedBuffer& aChunkedBuffer,
+    mozilla::StackCaptureOptions aCaptureOptions);
+
+// Add a marker to a given buffer. `AddMarker()` and related macros should be
+// used in most cases, see below for more information about them and the
+// paramters; This function may be useful when markers need to be recorded in a
+// local buffer outside of the main profiler buffer.
+template <typename MarkerType, typename... PayloadArguments>
+mozilla::ProfileBufferBlockIndex AddMarkerToBuffer(
+    mozilla::ProfileChunkedBuffer& aBuffer,
+    const mozilla::ProfilerString8View& aName,
+    const mozilla::MarkerCategory& aCategory, mozilla::MarkerOptions&& aOptions,
+    MarkerType aMarkerType, const PayloadArguments&... aPayloadArguments) {
+  AUTO_PROFILER_LABEL("AddMarkerToBuffer", PROFILER);
+  mozilla::Unused << aMarkerType;  // Only the empty object type is useful.
+  return mozilla::base_profiler_markers_detail::AddMarkerToBuffer<MarkerType>(
+      aBuffer, aName, aCategory, std::move(aOptions),
+      profiler_active_without_feature(ProfilerFeature::NoMarkerStacks)
+          ? ::profiler_capture_backtrace_into
+          : nullptr,
+      aPayloadArguments...);
+}
+
+// Add a marker (without payload) to a given buffer.
+inline mozilla::ProfileBufferBlockIndex AddMarkerToBuffer(
+    mozilla::ProfileChunkedBuffer& aBuffer,
+    const mozilla::ProfilerString8View& aName,
+    const mozilla::MarkerCategory& aCategory,
+    mozilla::MarkerOptions&& aOptions = {}) {
+  return AddMarkerToBuffer(aBuffer, aName, aCategory, std::move(aOptions),
+                           mozilla::baseprofiler::markers::NoPayload{});
+}
+#endif
+
+[[nodiscard]] inline bool profiler_thread_is_being_profiled_for_markers() {
+  return profiler_thread_is_being_profiled(ThreadProfilingFeatures::Markers);
+}
+
+[[nodiscard]] inline bool profiler_thread_is_being_profiled_for_markers(
+    const ProfilerThreadId& aThreadId) {
+  return profiler_thread_is_being_profiled(aThreadId,
+                                           ThreadProfilingFeatures::Markers);
+}
+
+// Add a marker to the Gecko Profiler buffer.
+// - aName: Main name of this marker.
+// - aCategory: Category for this marker.
+// - aOptions: Optional settings (such as timing, inner window id,
+//   backtrace...), see `MarkerOptions` for details.
+// - aMarkerType: Empty object that specifies the type of marker.
+// - aPayloadArguments: Arguments expected by this marker type's
+// ` StreamJSONMarkerData` function.
+template <typename MarkerType, typename... PayloadArguments>
+mozilla::ProfileBufferBlockIndex profiler_add_marker(
+    const mozilla::ProfilerString8View& aName,
+    const mozilla::MarkerCategory& aCategory, mozilla::MarkerOptions&& aOptions,
+    MarkerType aMarkerType, const PayloadArguments&... aPayloadArguments) {
+#ifndef MOZ_GECKO_PROFILER
+  return {};
+#else
+  if (!profiler_thread_is_being_profiled_for_markers(
+          aOptions.ThreadId().ThreadId())) {
+    return {};
+  }
+  AUTO_PROFILER_LABEL("profiler_add_marker", PROFILER);
+  return ::AddMarkerToBuffer(profiler_get_core_buffer(), aName, aCategory,
+                             std::move(aOptions), aMarkerType,
+                             aPayloadArguments...);
+#endif
+}
+
+// Add a marker (without payload) to the Gecko Profiler buffer.
+inline mozilla::ProfileBufferBlockIndex profiler_add_marker(
+    const mozilla::ProfilerString8View& aName,
+    const mozilla::MarkerCategory& aCategory,
+    mozilla::MarkerOptions&& aOptions = {}) {
+  return profiler_add_marker(aName, aCategory, std::move(aOptions),
+                             mozilla::baseprofiler::markers::NoPayload{});
+}
+
+// Same as `profiler_add_marker()` (without payload). This macro is safe to use
+// even if MOZ_GECKO_PROFILER is not #defined.
+#define PROFILER_MARKER_UNTYPED(markerName, categoryName, ...)                 \
+  do {                                                                         \
+    AUTO_PROFILER_STATS(PROFILER_MARKER_UNTYPED);                              \
+    ::profiler_add_marker(markerName, ::geckoprofiler::category::categoryName, \
+                          ##__VA_ARGS__);                                      \
+  } while (false)
+
+// Same as `profiler_add_marker()` (with payload). This macro is safe to use
+// even if MOZ_GECKO_PROFILER is not #defined.
+#define PROFILER_MARKER(markerName, categoryName, options, MarkerType, ...)    \
+  do {                                                                         \
+    AUTO_PROFILER_STATS(PROFILER_MARKER_with_##MarkerType);                    \
+    ::profiler_add_marker(markerName, ::geckoprofiler::category::categoryName, \
+                          options, ::geckoprofiler::markers::MarkerType{},     \
+                          ##__VA_ARGS__);                                      \
+  } while (false)
+
+namespace geckoprofiler::markers {
+// Most common marker types. Others are in ProfilerMarkerTypes.h.
+using TextMarker = ::mozilla::baseprofiler::markers::TextMarker;
+using Tracing = mozilla::baseprofiler::markers::Tracing;
+}  // namespace geckoprofiler::markers
+
+// Add a text marker. This macro is safe to use even if MOZ_GECKO_PROFILER is
+// not #defined.
+#define PROFILER_MARKER_TEXT(markerName, categoryName, options, text)          \
+  do {                                                                         \
+    AUTO_PROFILER_STATS(PROFILER_MARKER_TEXT);                                 \
+    ::profiler_add_marker(markerName, ::geckoprofiler::category::categoryName, \
+                          options, ::geckoprofiler::markers::TextMarker{},     \
+                          text);                                               \
+  } while (false)
+
+// RAII object that adds a PROFILER_MARKER_TEXT when destroyed; the marker's
+// timing will be the interval from construction (unless an instant or start
+// time is already specified in the provided options) until destruction.
+class MOZ_RAII AutoProfilerTextMarker {
+ public:
+  AutoProfilerTextMarker(const char* aMarkerName,
+                         const mozilla::MarkerCategory& aCategory,
+                         mozilla::MarkerOptions&& aOptions,
+                         const nsACString& aText)
+      : mMarkerName(aMarkerName),
+        mCategory(aCategory),
+        mOptions(std::move(aOptions)),
+        mText(aText) {
+    MOZ_ASSERT(mOptions.Timing().EndTime().IsNull(),
+               "AutoProfilerTextMarker options shouldn't have an end time");
+    if (profiler_is_active_and_unpaused() &&
+        mOptions.Timing().StartTime().IsNull()) {
+      mOptions.Set(mozilla::MarkerTiming::InstantNow());
+    }
+  }
+
+  ~AutoProfilerTextMarker() {
+    if (profiler_is_active_and_unpaused()) {
+      AUTO_PROFILER_LABEL("TextMarker", PROFILER);
+      mOptions.TimingRef().SetIntervalEnd();
+      AUTO_PROFILER_STATS(AUTO_PROFILER_MARKER_TEXT);
+      profiler_add_marker(
+          mozilla::ProfilerString8View::WrapNullTerminatedString(mMarkerName),
+          mCategory, std::move(mOptions), geckoprofiler::markers::TextMarker{},
+          mText);
+    }
+  }
+
+ protected:
+  const char* mMarkerName;
+  mozilla::MarkerCategory mCategory;
+  mozilla::MarkerOptions mOptions;
+  nsCString mText;
+};
+
+// Creates an AutoProfilerTextMarker RAII object.  This macro is safe to use
+// even if MOZ_GECKO_PROFILER is not #defined.
+#define AUTO_PROFILER_MARKER_TEXT(markerName, categoryName, options, text)  \
+  AutoProfilerTextMarker PROFILER_RAII(                                     \
+      markerName, ::mozilla::baseprofiler::category::categoryName, options, \
+      text)
+
+class MOZ_RAII AutoProfilerTracing {
+ public:
+  AutoProfilerTracing(const char* aCategoryString, const char* aMarkerName,
+                      mozilla::MarkerCategory aCategoryPair,
+                      const mozilla::Maybe<uint64_t>& aInnerWindowID)
+      : mCategoryString(aCategoryString),
+        mMarkerName(aMarkerName),
+        mCategoryPair(aCategoryPair),
+        mInnerWindowID(aInnerWindowID) {
+    profiler_add_marker(
+        mozilla::ProfilerString8View::WrapNullTerminatedString(mMarkerName),
+        mCategoryPair,
+        {mozilla::MarkerTiming::IntervalStart(),
+         mozilla::MarkerInnerWindowId(mInnerWindowID)},
+        geckoprofiler::markers::Tracing{},
+        mozilla::ProfilerString8View::WrapNullTerminatedString(
+            mCategoryString));
+  }
+
+  AutoProfilerTracing(
+      const char* aCategoryString, const char* aMarkerName,
+      mozilla::MarkerCategory aCategoryPair,
+      mozilla::UniquePtr<mozilla::ProfileChunkedBuffer> aBacktrace,
+      const mozilla::Maybe<uint64_t>& aInnerWindowID)
+      : mCategoryString(aCategoryString),
+        mMarkerName(aMarkerName),
+        mCategoryPair(aCategoryPair),
+        mInnerWindowID(aInnerWindowID) {
+    profiler_add_marker(
+        mozilla::ProfilerString8View::WrapNullTerminatedString(mMarkerName),
+        mCategoryPair,
+        {mozilla::MarkerTiming::IntervalStart(),
+         mozilla::MarkerInnerWindowId(mInnerWindowID),
+         mozilla::MarkerStack::TakeBacktrace(std::move(aBacktrace))},
+        geckoprofiler::markers::Tracing{},
+        mozilla::ProfilerString8View::WrapNullTerminatedString(
+            mCategoryString));
+  }
+
+  ~AutoProfilerTracing() {
+    profiler_add_marker(
+        mozilla::ProfilerString8View::WrapNullTerminatedString(mMarkerName),
+        mCategoryPair,
+        {mozilla::MarkerTiming::IntervalEnd(),
+         mozilla::MarkerInnerWindowId(mInnerWindowID)},
+        geckoprofiler::markers::Tracing{},
+        mozilla::ProfilerString8View::WrapNullTerminatedString(
+            mCategoryString));
+  }
+
+ protected:
+  const char* mCategoryString;
+  const char* mMarkerName;
+  const mozilla::MarkerCategory mCategoryPair;
+  const mozilla::Maybe<uint64_t> mInnerWindowID;
+};
+
+// Adds a START/END pair of tracing markers.
+#define AUTO_PROFILER_TRACING_MARKER(categoryString, markerName, categoryPair) \
+  AutoProfilerTracing PROFILER_RAII(categoryString, markerName,                \
+                                    geckoprofiler::category::categoryPair,     \
+                                    mozilla::Nothing())
+#define AUTO_PROFILER_TRACING_MARKER_INNERWINDOWID(                        \
+    categoryString, markerName, categoryPair, innerWindowId)               \
+  AutoProfilerTracing PROFILER_RAII(categoryString, markerName,            \
+                                    geckoprofiler::category::categoryPair, \
+                                    mozilla::Some(innerWindowId))
+#define AUTO_PROFILER_TRACING_MARKER_DOCSHELL(categoryString, markerName, \
+                                              categoryPair, docShell)     \
+  AutoProfilerTracing PROFILER_RAII(                                      \
+      categoryString, markerName, geckoprofiler::category::categoryPair,  \
+      geckoprofiler::markers::detail::                                    \
+          profiler_get_inner_window_id_from_docshell(docShell))
+
+#ifdef MOZ_GECKO_PROFILER
+extern template mozilla::ProfileBufferBlockIndex AddMarkerToBuffer(
+    mozilla::ProfileChunkedBuffer&, const mozilla::ProfilerString8View&,
+    const mozilla::MarkerCategory&, mozilla::MarkerOptions&&,
+    mozilla::baseprofiler::markers::NoPayload);
+
+extern template mozilla::ProfileBufferBlockIndex AddMarkerToBuffer(
+    mozilla::ProfileChunkedBuffer&, const mozilla::ProfilerString8View&,
+    const mozilla::MarkerCategory&, mozilla::MarkerOptions&&,
+    mozilla::baseprofiler::markers::TextMarker, const std::string&);
+
+extern template mozilla::ProfileBufferBlockIndex profiler_add_marker(
+    const mozilla::ProfilerString8View&, const mozilla::MarkerCategory&,
+    mozilla::MarkerOptions&&, mozilla::baseprofiler::markers::TextMarker,
+    const std::string&);
+
+extern template mozilla::ProfileBufferBlockIndex profiler_add_marker(
+    const mozilla::ProfilerString8View&, const mozilla::MarkerCategory&,
+    mozilla::MarkerOptions&&, mozilla::baseprofiler::markers::TextMarker,
+    const nsCString&);
+
+extern template mozilla::ProfileBufferBlockIndex profiler_add_marker(
+    const mozilla::ProfilerString8View&, const mozilla::MarkerCategory&,
+    mozilla::MarkerOptions&&, mozilla::baseprofiler::markers::Tracing,
+    const mozilla::ProfilerString8View&);
+#endif  // MOZ_GECKO_PROFILER
+
+#endif  // ProfilerMarkers_h