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Bug 1117977, make script load handling during shutdown safer, r=mccr8

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--HG--
extra : rebase_source : d3f3b6961c97ae1a9b67e7b00f41247c1d67eea7
This commit is contained in:
Olli Pettay 2015-02-19 01:18:27 +02:00
parent ffdff69fd0
commit c8bd9f8dee
1 changed files with 19 additions and 0 deletions
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19
dom/base/nsScriptLoader.cpp
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@ -796,6 +796,8 @@ public:
: mRequest(aRequest), mLoader(aLoader), mToken(nullptr)
{}
virtual ~NotifyOffThreadScriptLoadCompletedRunnable();
void SetToken(void* aToken) {
MOZ_ASSERT(aToken && !mToken);
mToken = aToken;
@ -814,6 +816,23 @@ nsScriptLoader::ProcessOffThreadRequest(nsScriptLoadRequest* aRequest, void **aO
return rv;
}
NotifyOffThreadScriptLoadCompletedRunnable::~NotifyOffThreadScriptLoadCompletedRunnable()
{
if (MOZ_UNLIKELY(mRequest || mLoader) && !NS_IsMainThread()) {
nsCOMPtr<nsIThread> mainThread;
NS_GetMainThread(getter_AddRefs(mainThread));
if (mainThread) {
NS_ProxyRelease(mainThread, mRequest);
NS_ProxyRelease(mainThread, mLoader);
} else {
MOZ_ASSERT(false, "We really shouldn't leak!");
// Better to leak than crash.
unused << mRequest.forget();
unused << mLoader.forget();
}
}
}
NS_IMETHODIMP
NotifyOffThreadScriptLoadCompletedRunnable::Run()
{