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Fix really really big Mutex/APC bug. Killing GUI Threads from taskmanager should now work flawlessly, and gui apps should work better; the bug had probably tiny important impact in them

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svn path=/trunk/; revision=14264
This commit is contained in:
Alex Ionescu 2005-03-22 03:06:03 +00:00
parent efa9275d99
commit 2700763b70
1 changed files with 18 additions and 0 deletions
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18
reactos/ntoskrnl/ke/mutex.c
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@ -162,10 +162,28 @@ KeReleaseMutant(IN PKMUTANT Mutant,
/* Check if the signal state is only single */ /* Check if the signal state is only single */
if (Mutant->Header.SignalState == 1) { if (Mutant->Header.SignalState == 1) {
/* Check if it's below 0 now */
if (PreviousState <= 0) { if (PreviousState <= 0) {
/* Remove the mutant from the list */
DPRINT("Removing Mutant\n"); DPRINT("Removing Mutant\n");
RemoveEntryList(&Mutant->MutantListEntry); RemoveEntryList(&Mutant->MutantListEntry);
/* Reenable APCs */
DPRINT("Re-enabling APCs\n");
CurrentThread->KernelApcDisable += Mutant->ApcDisable;
/* Force an Interrupt if Apcs are pending */
if (!IsListEmpty(&CurrentThread->ApcState.ApcListHead[KernelMode])) {
/* Make sure they aren't disabled though */
if (!CurrentThread->KernelApcDisable) {
/* Request the Interrupt */
DPRINT("Requesting APC Interupt\n");
HalRequestSoftwareInterrupt(APC_LEVEL);
}
}
} }
/* Remove the Owning Thread and wake it */ /* Remove the Owning Thread and wake it */