gecko-dev/netwerk/cache/nsCacheUtils.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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/. */
#include "nsCache.h"
#include "nsCacheUtils.h"
#include "nsThreadUtils.h"
using namespace mozilla;
class nsDestroyThreadEvent : public nsRunnable {
public:
nsDestroyThreadEvent(nsIThread *thread)
: mThread(thread)
{}
NS_IMETHOD Run()
{
mThread->Shutdown();
return NS_OK;
}
private:
nsCOMPtr<nsIThread> mThread;
};
nsShutdownThread::nsShutdownThread(nsIThread *aThread)
: mLock("nsShutdownThread.mLock")
, mCondVar(mLock, "nsShutdownThread.mCondVar")
, mThread(aThread)
{
}
nsShutdownThread::~nsShutdownThread()
{
}
nsresult
nsShutdownThread::Shutdown(nsIThread *aThread)
{
nsresult rv;
nsRefPtr<nsDestroyThreadEvent> ev = new nsDestroyThreadEvent(aThread);
rv = NS_DispatchToMainThread(ev);
if (NS_FAILED(rv)) {
NS_WARNING("Dispatching event in nsShutdownThread::Shutdown failed!");
}
return rv;
}
nsresult
nsShutdownThread::BlockingShutdown(nsIThread *aThread)
{
nsresult rv;
nsRefPtr<nsShutdownThread> st = new nsShutdownThread(aThread);
nsCOMPtr<nsIThread> workerThread;
rv = NS_NewNamedThread("thread shutdown", getter_AddRefs(workerThread));
if (NS_FAILED(rv)) {
NS_WARNING("Can't create nsShutDownThread worker thread!");
return rv;
}
{
MutexAutoLock lock(st->mLock);
rv = workerThread->Dispatch(st, NS_DISPATCH_NORMAL);
if (NS_FAILED(rv)) {
NS_WARNING(
"Dispatching event in nsShutdownThread::BlockingShutdown failed!");
} else {
st->mCondVar.Wait();
}
}
return Shutdown(workerThread);
}
NS_IMETHODIMP
nsShutdownThread::Run()
{
MutexAutoLock lock(mLock);
mThread->Shutdown();
mCondVar.Notify();
return NS_OK;
}