The Tor Browser / file comparison
comparison: xpcom/glue/nsProxyRelease.cpp
xpcom/glue/nsProxyRelease.cpp
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:35d660eef706 |
|---|---|
| 1 /* vim:set ts=4 sw=4 sts=4 et cin: */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "nsProxyRelease.h" | |
| 7 #include "nsThreadUtils.h" | |
| 8 #include "nsAutoPtr.h" | |
| 9 | |
| 10 class nsProxyReleaseEvent : public nsRunnable | |
| 11 { | |
| 12 public: | |
| 13 nsProxyReleaseEvent(nsISupports *doomed) | |
| 14 : mDoomed(doomed) { | |
| 15 } | |
| 16 | |
| 17 NS_IMETHOD Run() | |
| 18 { | |
| 19 mDoomed->Release(); | |
| 20 return NS_OK; | |
| 21 } | |
| 22 | |
| 23 private: | |
| 24 nsISupports *mDoomed; | |
| 25 }; | |
| 26 | |
| 27 nsresult | |
| 28 NS_ProxyRelease(nsIEventTarget *target, nsISupports *doomed, | |
| 29 bool alwaysProxy) | |
| 30 { | |
| 31 nsresult rv; | |
| 32 | |
| 33 if (!doomed) { | |
| 34 // nothing to do | |
| 35 return NS_OK; | |
| 36 } | |
| 37 | |
| 38 if (!target) { | |
| 39 NS_RELEASE(doomed); | |
| 40 return NS_OK; | |
| 41 } | |
| 42 | |
| 43 if (!alwaysProxy) { | |
| 44 bool onCurrentThread = false; | |
| 45 rv = target->IsOnCurrentThread(&onCurrentThread); | |
| 46 if (NS_SUCCEEDED(rv) && onCurrentThread) { | |
| 47 NS_RELEASE(doomed); | |
| 48 return NS_OK; | |
| 49 } | |
| 50 } | |
| 51 | |
| 52 nsRefPtr<nsIRunnable> ev = new nsProxyReleaseEvent(doomed); | |
| 53 if (!ev) { | |
| 54 // we do not release doomed here since it may cause a delete on the | |
| 55 // wrong thread. better to leak than crash. | |
| 56 return NS_ERROR_OUT_OF_MEMORY; | |
| 57 } | |
| 58 | |
| 59 rv = target->Dispatch(ev, NS_DISPATCH_NORMAL); | |
| 60 if (NS_FAILED(rv)) { | |
| 61 NS_WARNING("failed to post proxy release event"); | |
| 62 // again, it is better to leak the doomed object than risk crashing as | |
| 63 // a result of deleting it on the wrong thread. | |
| 64 } | |
| 65 return rv; | |
| 66 } |
