The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/netwerk/ipc/ChannelEventQueue.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,80 @@
     1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
     1.5 + * vim: set sw=2 ts=8 et tw=80 :
     1.6 + */
     1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
    1.10 +
    1.11 +#include "nsISupports.h"
    1.12 +#include "mozilla/net/ChannelEventQueue.h"
    1.13 +#include "nsThreadUtils.h"
    1.14 +
    1.15 +namespace mozilla {
    1.16 +namespace net {
    1.17 +
    1.18 +void
    1.19 +ChannelEventQueue::FlushQueue()
    1.20 +{
    1.21 +  // Events flushed could include destruction of channel (and our own
    1.22 +  // destructor) unless we make sure its refcount doesn't drop to 0 while this
    1.23 +  // method is running.
    1.24 +  nsCOMPtr<nsISupports> kungFuDeathGrip(mOwner);
    1.25 +
    1.26 +  // Prevent flushed events from flushing the queue recursively
    1.27 +  mFlushing = true;
    1.28 +
    1.29 +  uint32_t i;
    1.30 +  for (i = 0; i < mEventQueue.Length(); i++) {
    1.31 +    mEventQueue[i]->Run();
    1.32 +    if (mSuspended)
    1.33 +      break;
    1.34 +  }
    1.35 +
    1.36 +  // We will always want to remove at least one finished callback.
    1.37 +  if (i < mEventQueue.Length())
    1.38 +    i++;
    1.39 +
    1.40 +  // It is possible for new callbacks to be enqueued as we are
    1.41 +  // flushing the queue, so the queue must not be cleared until
    1.42 +  // all callbacks have run.
    1.43 +  mEventQueue.RemoveElementsAt(0, i);
    1.44 +
    1.45 +  mFlushing = false;
    1.46 +}
    1.47 +
    1.48 +void
    1.49 +ChannelEventQueue::Resume()
    1.50 +{
    1.51 +  // Resuming w/o suspend: error in debug mode, ignore in build
    1.52 +  MOZ_ASSERT(mSuspendCount > 0);
    1.53 +  if (mSuspendCount <= 0) {
    1.54 +    return;
    1.55 +  }
    1.56 +
    1.57 +  if (!--mSuspendCount) {
    1.58 +    nsRefPtr<nsRunnableMethod<ChannelEventQueue> > event =
    1.59 +      NS_NewRunnableMethod(this, &ChannelEventQueue::CompleteResume);
    1.60 +    if (mTargetThread) {
    1.61 +      mTargetThread->Dispatch(event, NS_DISPATCH_NORMAL);
    1.62 +    } else {
    1.63 +      MOZ_RELEASE_ASSERT(NS_IsMainThread());
    1.64 +      NS_DispatchToCurrentThread(event);
    1.65 +    }
    1.66 +  }
    1.67 +}
    1.68 +
    1.69 +nsresult
    1.70 +ChannelEventQueue::RetargetDeliveryTo(nsIEventTarget* aTargetThread)
    1.71 +{
    1.72 +  MOZ_RELEASE_ASSERT(NS_IsMainThread());
    1.73 +  MOZ_RELEASE_ASSERT(!mTargetThread);
    1.74 +  MOZ_RELEASE_ASSERT(aTargetThread);
    1.75 +
    1.76 +  mTargetThread = do_QueryInterface(aTargetThread);
    1.77 +  MOZ_RELEASE_ASSERT(mTargetThread);
    1.78 +
    1.79 +  return NS_OK;
    1.80 +}
    1.81 +
    1.82 +}
    1.83 +}