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Moonchild
69bd6af877
In some cases, `lock.wait()` can be interrupted by spurious wake-ups before processing is done. To ensure things are, in fact, synchronous, loop over `wait()` until it is actually done.
52 lines
991 B
C++
52 lines
991 B
C++
/* 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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#include "PSMRunnable.h"
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namespace mozilla { namespace psm {
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SyncRunnableBase::SyncRunnableBase()
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: monitor("SyncRunnableBase::monitor")
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{
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}
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nsresult
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SyncRunnableBase::DispatchToMainThreadAndWait()
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{
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nsresult rv;
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if (NS_IsMainThread()) {
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RunOnTargetThread();
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rv = NS_OK;
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} else {
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mozilla::MonitorAutoLock lock(monitor);
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rv = NS_DispatchToMainThread(this);
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if (NS_SUCCEEDED(rv)) {
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while (!mDone) {
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lock.Wait();
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}
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}
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}
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return rv;
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}
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NS_IMETHODIMP
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SyncRunnableBase::Run()
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{
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RunOnTargetThread();
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mozilla::MonitorAutoLock lock(monitor);
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mDone = true;
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lock.Notify();
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return NS_OK;
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}
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nsresult
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NotifyObserverRunnable::Run()
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{
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mObserver->Observe(nullptr, mTopic, nullptr);
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return NS_OK;
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}
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} } // namespace mozilla::psm
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