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Bug 1646266 - Marker option: MarkerThreadId - r=gregtatum

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This marker option captures a given thread id.
If left unspecified (by default construction) during the add-marker call, the current thread id will be used then.

Differential Revision: https://phabricator.services.mozilla.com/D87244
This commit is contained in:
Gerald Squelart 2020-08-31 23:30:12 +00:00
parent 959178815b
commit c2665d4e9d
1 changed files with 29 additions and 0 deletions
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29
mozglue/baseprofiler/public/BaseProfilerMarkersPrerequisites.h
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@ -22,6 +22,11 @@
# include <type_traits>
# include <utility>
namespace mozilla::baseprofiler {
// Implemented in platform.cpp
MFBT_API int profiler_current_thread_id();
} // namespace mozilla::baseprofiler
namespace mozilla {
// Return a NotNull<const CHAR*> pointing at the literal empty string `""`.
@ -250,6 +255,30 @@ MOZ_PROFILING_CATEGORY_LIST(CATEGORY_ENUM_BEGIN_CATEGORY,
# undef CATEGORY_ENUM_END_CATEGORY
} // namespace baseprofiler::category
// This marker option captures a given thread id.
// If left unspecified (by default construction) during the add-marker call, the
// current thread id will be used then.
class MarkerThreadId {
public:
// Default constructor, keeps the thread id unspecified.
constexpr MarkerThreadId() = default;
// Constructor from a given thread id.
constexpr explicit MarkerThreadId(int aThreadId) : mThreadId(aThreadId) {}
// Use the current thread's id.
static MarkerThreadId CurrentThread() {
return MarkerThreadId(baseprofiler::profiler_current_thread_id());
}
[[nodiscard]] constexpr int ThreadId() const { return mThreadId; }
[[nodiscard]] constexpr bool IsUnspecified() const { return mThreadId == 0; }
private:
int mThreadId = 0;
};
} // namespace mozilla
#endif // MOZ_GECKO_PROFILER