mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-13 23:17:57 +00:00
67 lines
1.6 KiB
C++
67 lines
1.6 KiB
C++
/* vim:set ts=4 sw=4 sts=4 et cin: */
|
|
/* 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 "nsProxyRelease.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "nsAutoPtr.h"
|
|
|
|
class nsProxyReleaseEvent : public nsRunnable
|
|
{
|
|
public:
|
|
nsProxyReleaseEvent(nsISupports *doomed)
|
|
: mDoomed(doomed) {
|
|
}
|
|
|
|
NS_IMETHOD Run()
|
|
{
|
|
mDoomed->Release();
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
nsISupports *mDoomed;
|
|
};
|
|
|
|
nsresult
|
|
NS_ProxyRelease(nsIEventTarget *target, nsISupports *doomed,
|
|
bool alwaysProxy)
|
|
{
|
|
nsresult rv;
|
|
|
|
if (!doomed) {
|
|
// nothing to do
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!target) {
|
|
NS_RELEASE(doomed);
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!alwaysProxy) {
|
|
bool onCurrentThread = false;
|
|
rv = target->IsOnCurrentThread(&onCurrentThread);
|
|
if (NS_SUCCEEDED(rv) && onCurrentThread) {
|
|
NS_RELEASE(doomed);
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
nsRefPtr<nsIRunnable> ev = new nsProxyReleaseEvent(doomed);
|
|
if (!ev) {
|
|
// we do not release doomed here since it may cause a delete on the
|
|
// wrong thread. better to leak than crash.
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
rv = target->Dispatch(ev, NS_DISPATCH_NORMAL);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("failed to post proxy release event");
|
|
// again, it is better to leak the doomed object than risk crashing as
|
|
// a result of deleting it on the wrong thread.
|
|
}
|
|
return rv;
|
|
}
|