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Bug 891891 - Print diagnostics when an XPCWrappedJS is QI-ed off-main-thread. r=mrbkap

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Let's try to figure out which XPCWrappedJS is causing this. I've filed a reminder
for myself to back this out by sept 3.
This commit is contained in:
Bobby Holley 2013-08-22 12:40:29 -07:00
parent 7e6715d905
commit 222832d3b4
1 changed files with 16 additions and 0 deletions
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16
js/xpconnect/src/XPCWrappedJSClass.cpp
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@ -573,6 +573,22 @@ nsXPCWrappedJSClass::DelegatedQueryInterface(nsXPCWrappedJS* self,
REFNSIID aIID,
void** aInstancePtr)
{
if (MOZ_UNLIKELY(!NS_IsMainThread())) {
printf("Uh oh! DelegatedQueryInterface called off-main-thread!\n");
printf("Name: %s\n", GetInterfaceName());
JSCompartment *c = js::GetObjectCompartment(self->GetJSObjectPreserveColor());
char *origin = nullptr;
nsresult rv = xpc::GetCompartmentPrincipal(c)->GetOrigin(&origin);
if (NS_SUCCEEDED(rv)) {
printf("Principal origin: %s\n", origin);
NS_Free(origin);
} else {
printf("Unable to get origin from principal :-(\n");
}
nsAutoCString loc(EnsureCompartmentPrivate(c)->GetLocation());
printf("Global's Location: %s\n", loc.get());
MOZ_CRASH();
}
if (aIID.Equals(NS_GET_IID(nsIXPConnectJSObjectHolder))) {
NS_ADDREF(self);
*aInstancePtr = (void*) static_cast<nsIXPConnectJSObjectHolder*>(self);