56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
#include "nsProxyRelease.h"
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PR_STATIC_CALLBACK(void*)
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HandleProxyReleaseEvent(PLEvent *self)
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{
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nsISupports* owner = (nsISupports*) self->owner;
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NS_RELEASE(owner);
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return nsnull;
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}
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PR_STATIC_CALLBACK(void)
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DestroyProxyReleaseEvent(PLEvent *self)
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{
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delete self;
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}
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NS_COM nsresult
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NS_ProxyRelease(nsIEventTarget *target, nsISupports *doomed, PRBool alwaysProxy)
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{
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nsresult rv;
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if (!target) {
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NS_RELEASE(doomed);
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return NS_OK;
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}
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if (!alwaysProxy) {
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PRBool onCurrentThread = PR_FALSE;
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rv = target->IsOnCurrentThread(&onCurrentThread);
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if (NS_SUCCEEDED(rv) && onCurrentThread) {
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NS_RELEASE(doomed);
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return NS_OK;
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}
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}
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PLEvent *ev = new PLEvent;
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if (!ev) {
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// we do not release doomed here since it may cause a delete on the
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// wrong thread. better to leak than crash.
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return NS_ERROR_OUT_OF_MEMORY;
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}
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PL_InitEvent(ev, doomed,
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HandleProxyReleaseEvent,
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DestroyProxyReleaseEvent);
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rv = target->PostEvent(ev);
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if (NS_FAILED(rv)) {
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NS_WARNING("failed to post proxy release event");
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PL_DestroyEvent(ev);
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// again, it is better to leak the doomed object than risk crashing as
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// a result of deleting it on the wrong thread.
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}
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return rv;
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}
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