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Diffstat (limited to 'tools/profiler/public/ProfilerMarkers.h')
| -rw-r--r-- | tools/profiler/public/ProfilerMarkers.h | 355 |
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 |