From 9e3c08db40b8916968b9f30096c7be3f00ce9647 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 13:44:51 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- tools/profiler/public/ProfilerThreadSleep.h | 58 +++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 tools/profiler/public/ProfilerThreadSleep.h (limited to 'tools/profiler/public/ProfilerThreadSleep.h') diff --git a/tools/profiler/public/ProfilerThreadSleep.h b/tools/profiler/public/ProfilerThreadSleep.h new file mode 100644 index 0000000000..730176d39f --- /dev/null +++ b/tools/profiler/public/ProfilerThreadSleep.h @@ -0,0 +1,58 @@ +/* -*- 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/. */ + +// APIs that inform the profiler when a thread is effectively asleep so that we +// can avoid sampling it more than once. + +#ifndef ProfilerThreadSleep_h +#define ProfilerThreadSleep_h + +#ifndef MOZ_GECKO_PROFILER + +// This file can be #included unconditionally. However, everything within this +// file must be guarded by a #ifdef MOZ_GECKO_PROFILER, *except* for the +// following macros and functions, which encapsulate the most common operations +// and thus avoid the need for many #ifdefs. + +# define AUTO_PROFILER_THREAD_SLEEP + +static inline void profiler_thread_sleep() {} + +static inline void profiler_thread_wake() {} + +#else // !MOZ_GECKO_PROFILER + +# include "mozilla/Attributes.h" +# include "mozilla/BaseProfilerRAIIMacro.h" + +// These functions tell the profiler that a thread went to sleep so that we can +// avoid sampling it more than once while it's sleeping. Calling +// profiler_thread_sleep() twice without an intervening profiler_thread_wake() +// is an error. All three functions operate the same whether the profiler is +// active or inactive. +void profiler_thread_sleep(); +void profiler_thread_wake(); + +// Mark a thread as asleep within a scope. +// (See also AUTO_PROFILER_THREAD_WAKE in ProfilerThreadState.h) +# define AUTO_PROFILER_THREAD_SLEEP \ + mozilla::AutoProfilerThreadSleep PROFILER_RAII + +namespace mozilla { + +// (See also AutoProfilerThreadWake in ProfilerThreadState.h) +class MOZ_RAII AutoProfilerThreadSleep { + public: + explicit AutoProfilerThreadSleep() { profiler_thread_sleep(); } + + ~AutoProfilerThreadSleep() { profiler_thread_wake(); } +}; + +} // namespace mozilla + +#endif // !MOZ_GECKO_PROFILER + +#endif // ProfilerThreadSleep_h -- cgit v1.2.3