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/* -*- Mode: C++; tab-width: 8; 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/. */
#ifndef mozilla_ThreadEventTarget_h
#define mozilla_ThreadEventTarget_h
#include "mozilla/MemoryReporting.h"
#include "mozilla/Mutex.h"
#include "mozilla/SynchronizedEventQueue.h" // for ThreadTargetSink
#include "nsISerialEventTarget.h"
namespace mozilla {
// ThreadEventTarget handles the details of posting an event to a thread. It can
// be used with any ThreadTargetSink implementation.
class ThreadEventTarget final : public nsISerialEventTarget {
public:
ThreadEventTarget(ThreadTargetSink* aSink, bool aIsMainThread);
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIEVENTTARGET_FULL
// Disconnects the target so that it can no longer post events.
void Disconnect(const MutexAutoLock& aProofOfLock) {
mSink->Disconnect(aProofOfLock);
}
// Sets the thread for which IsOnCurrentThread returns true to the current
// thread.
void SetCurrentThread();
// Call ClearCurrentThread() before the PRThread is deleted on thread join.
void ClearCurrentThread();
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const {
size_t n = 0;
if (mSink) {
n += mSink->SizeOfIncludingThis(aMallocSizeOf);
}
return aMallocSizeOf(this) + n;
}
private:
~ThreadEventTarget() = default;
RefPtr<ThreadTargetSink> mSink;
bool mIsMainThread;
};
} // namespace mozilla
#endif // mozilla_ThreadEventTarget_h
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