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Bug 1177013 - Avoid memory leaks when returning errors from IPC Send (r=dvander)

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This commit is contained in:
Bill McCloskey 2015-07-01 15:17:33 -07:00
parent 9388d303ff
commit 920221e2a6
1 changed files with 9 additions and 9 deletions
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18
ipc/glue/MessageChannel.cpp
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@ -839,6 +839,8 @@ MessageChannel::WasTransactionCanceled(int transaction, int prio)
bool
MessageChannel::Send(Message* aMsg, Message* aReply)
{
nsAutoPtr<Message> msg(aMsg);
// See comment in DispatchSyncMessage.
MaybeScriptBlocker scriptBlocker(this, true);
@ -853,7 +855,7 @@ MessageChannel::Send(Message* aMsg, Message* aReply)
SyncStackFrame frame(this, false);
#endif
CxxStackFrame f(*this, OUT_MESSAGE, aMsg);
CxxStackFrame f(*this, OUT_MESSAGE, msg);
MonitorAutoLock lock(*mMonitor);
@ -866,7 +868,7 @@ MessageChannel::Send(Message* aMsg, Message* aReply)
}
if (DispatchingSyncMessagePriority() == IPC::Message::PRIORITY_NORMAL &&
aMsg->priority() > IPC::Message::PRIORITY_NORMAL)
msg->priority() > IPC::Message::PRIORITY_NORMAL)
{
// Don't allow sending CPOWs while we're dispatching a sync message.
// If you want to do that, use sendRpcMessage instead.
@ -874,8 +876,8 @@ MessageChannel::Send(Message* aMsg, Message* aReply)
}
if (mCurrentTransaction &&
(aMsg->priority() < DispatchingSyncMessagePriority() ||
mAwaitingSyncReplyPriority > aMsg->priority() ||
(msg->priority() < DispatchingSyncMessagePriority() ||
mAwaitingSyncReplyPriority > msg->priority() ||
DispatchingSyncMessagePriority() == IPC::Message::PRIORITY_URGENT ||
DispatchingAsyncMessagePriority() == IPC::Message::PRIORITY_URGENT))
{
@ -883,10 +885,10 @@ MessageChannel::Send(Message* aMsg, Message* aReply)
mLink->SendMessage(new CancelMessage());
}
IPC_ASSERT(aMsg->is_sync(), "can only Send() sync messages here");
IPC_ASSERT(aMsg->priority() >= DispatchingSyncMessagePriority(),
IPC_ASSERT(msg->is_sync(), "can only Send() sync messages here");
IPC_ASSERT(msg->priority() >= DispatchingSyncMessagePriority(),
"can't send sync message of a lesser priority than what's being dispatched");
IPC_ASSERT(AwaitingSyncReplyPriority() <= aMsg->priority(),
IPC_ASSERT(AwaitingSyncReplyPriority() <= msg->priority(),
"nested sync message sends must be of increasing priority");
IPC_ASSERT(DispatchingSyncMessagePriority() != IPC::Message::PRIORITY_URGENT,
@ -894,8 +896,6 @@ MessageChannel::Send(Message* aMsg, Message* aReply)
IPC_ASSERT(DispatchingAsyncMessagePriority() != IPC::Message::PRIORITY_URGENT,
"not allowed to send messages while dispatching urgent messages");
nsAutoPtr<Message> msg(aMsg);
if (!Connected()) {
ReportConnectionError("MessageChannel::SendAndWait", msg);
return false;