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8a68e6fb83
Currently the Gecko Profiler defines a moderate amount of stuff when MOZ_GECKO_PROFILER is undefined. It also #includes various headers, including JS ones. This is making it difficult to separate Gecko's media stack for inclusion in Servo. This patch greatly simplifies how things are exposed. The starting point is: - GeckoProfiler.h can be #included unconditionally; - everything else from the profiler must be guarded by MOZ_GECKO_PROFILER. In practice this introduces way too many #ifdefs, so the patch loosens it by adding no-op macros for a number of the most common operations. The net result is that #ifdefs and macros are used a bit more, but almost nothing is exposed in non-MOZ_GECKO_PROFILER builds (including ProfilerMarkerPayload.h and GeckoProfiler.h), and understanding what is exposed is much simpler than before. Note also that in BHR, ThreadStackHelper is now entirely absent in non-MOZ_GECKO_PROFILER builds.
137 lines
2.8 KiB
C++
137 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_CondVar_h
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#define mozilla_CondVar_h
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#include "mozilla/BlockingResourceBase.h"
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#include "mozilla/PlatformConditionVariable.h"
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#include "mozilla/Mutex.h"
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#ifdef MOZILLA_INTERNAL_API
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#include "GeckoProfiler.h"
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#endif //MOZILLA_INTERNAL_API
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namespace mozilla {
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/**
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* CondVar
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* Vanilla condition variable. Please don't use this unless you have a
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* compelling reason --- Monitor provides a simpler API.
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*/
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class CondVar : BlockingResourceBase
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{
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public:
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/**
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* CondVar
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*
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* The CALLER owns |aLock|.
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*
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* @param aLock A Mutex to associate with this condition variable.
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* @param aName A name which can reference this monitor
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* @returns If failure, nullptr.
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* If success, a valid Monitor* which must be destroyed
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* by Monitor::DestroyMonitor()
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**/
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CondVar(Mutex& aLock, const char* aName)
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: BlockingResourceBase(aName, eCondVar)
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, mLock(&aLock)
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{
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MOZ_COUNT_CTOR(CondVar);
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}
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/**
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* ~CondVar
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* Clean up after this CondVar, but NOT its associated Mutex.
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**/
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~CondVar()
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{
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MOZ_COUNT_DTOR(CondVar);
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}
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#ifndef DEBUG
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/**
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* Wait
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* @see prcvar.h
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**/
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nsresult Wait(PRIntervalTime aInterval = PR_INTERVAL_NO_TIMEOUT)
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{
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#ifdef MOZILLA_INTERNAL_API
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AUTO_PROFILER_THREAD_SLEEP;
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#endif //MOZILLA_INTERNAL_API
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if (aInterval == PR_INTERVAL_NO_TIMEOUT) {
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mImpl.wait(*mLock);
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} else {
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mImpl.wait_for(*mLock, TimeDuration::FromMilliseconds(double(aInterval)));
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}
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return NS_OK;
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}
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#else
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nsresult Wait(PRIntervalTime aInterval = PR_INTERVAL_NO_TIMEOUT);
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#endif // ifndef DEBUG
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/**
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* Notify
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* @see prcvar.h
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**/
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nsresult Notify()
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{
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mImpl.notify_one();
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return NS_OK;
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}
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/**
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* NotifyAll
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* @see prcvar.h
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**/
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nsresult NotifyAll()
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{
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mImpl.notify_all();
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return NS_OK;
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}
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#ifdef DEBUG
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/**
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* AssertCurrentThreadOwnsMutex
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* @see Mutex::AssertCurrentThreadOwns
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**/
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void AssertCurrentThreadOwnsMutex()
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{
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mLock->AssertCurrentThreadOwns();
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}
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/**
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* AssertNotCurrentThreadOwnsMutex
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* @see Mutex::AssertNotCurrentThreadOwns
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**/
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void AssertNotCurrentThreadOwnsMutex()
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{
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mLock->AssertNotCurrentThreadOwns();
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}
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#else
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void AssertCurrentThreadOwnsMutex() {}
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void AssertNotCurrentThreadOwnsMutex() {}
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#endif // ifdef DEBUG
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private:
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CondVar();
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CondVar(const CondVar&) = delete;
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CondVar& operator=(const CondVar&) = delete;
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Mutex* mLock;
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detail::ConditionVariableImpl mImpl;
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};
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} // namespace mozilla
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#endif // ifndef mozilla_CondVar_h
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