KiSignalSynchronizationObject.c

VOID KiSignalSynchronizationObject(PKPRCB Prcb, PDISPATCHER_HEADER SyncObject)
{
	PKWAIT_BLOCK WaitBlock,WaitBlockNext;
	PLIST_ENTRY WaitListHead,WaitEntry;
	/*the wait list head is in the DISPATCHER_HEADER structure*/
	WaitListHead = &SyncObject->WaitListHead;
	WaitEntry = WaitListHead->Flink;
	WaitBlock = CONTAINING_RECORD(WaitEntry,KWAIT_BLOCK,WaitListEntry);
	WaitBlockNext = NULL;
	/*Check if the wait list is empty*/
	while(WaitListHead != WaitEntry)
	{
		/*
		We will unlink and deal with a KWAIT_BLOCK structure update the WaitEntry to point to the next LIST_ENTRY
		and also get a pointer to the KWAIT_BLOCK.
		*/
		WaitEntry = WaitEntry->Flink;
		WaitBlockNext = CONTAINING_RECORD(WaitEntry,KWAIT_BLOCK,WaitListEntry);
		/*Unlink the current the wait block from the wait list*/
		WaitBlock->WaitListEntry.Blink->Flink = WaitBlock->WaitListEntry.Flink;
		WaitBlock->WaitListEntry.Flink->Blink = WaitBlock->WaitListEntry.Blink;
		if(WaitBlock->WaitType == WaitAny)
		{
			if( KiTryUnwaitThread(Prcb,(NTSTATUS)WaitBlock->WaitKey,NULL,WaitBlock) )
			{
				/*break if the synchronization object became non-signaled*/
				if(--SyncObject->SignalState == 0)
					break;
			}
		}
		/*loc_45652E*/
		else
		{
			KiTryUnwaitThread(Prcb,STATUS_KERNEL_APC,NULL,WaitBlock);
		}
		WaitBlock = WaitBlockNext;
	}
}