/**
* Initializes a work queue.
*
* \param WorkQueue A work queue object.
* \param MinimumThreads The suggested minimum number of threads to keep alive, even
* when there is no work to be performed.
* \param MaximumThreads The suggested maximum number of threads to create.
* \param NoWorkTimeout The number of milliseconds after which threads without work
* will terminate.
*/
VOID PhInitializeWorkQueue(
_Out_ PPH_WORK_QUEUE WorkQueue,
_In_ ULONG MinimumThreads,
_In_ ULONG MaximumThreads,
_In_ ULONG NoWorkTimeout
)
{
PhInitializeRundownProtection(&WorkQueue->RundownProtect);
WorkQueue->Terminating = FALSE;
InitializeListHead(&WorkQueue->QueueListHead);
PhInitializeQueuedLock(&WorkQueue->QueueLock);
PhInitializeQueuedLock(&WorkQueue->QueueEmptyCondition);
WorkQueue->MinimumThreads = MinimumThreads;
WorkQueue->MaximumThreads = MaximumThreads;
WorkQueue->NoWorkTimeout = NoWorkTimeout;
PhInitializeQueuedLock(&WorkQueue->StateLock);
WorkQueue->SemaphoreHandle = NULL;
WorkQueue->CurrentThreads = 0;
WorkQueue->BusyCount = 0;
#ifdef DEBUG
PhAcquireQueuedLockExclusive(&PhDbgWorkQueueListLock);
PhAddItemList(PhDbgWorkQueueList, WorkQueue);
PhReleaseQueuedLockExclusive(&PhDbgWorkQueueListLock);
#endif
}
/**
* Initializes a work queue.
*
* \param WorkQueue A work queue object.
* \param MinimumThreads The suggested minimum number of threads to keep alive, even
* when there is no work to be performed.
* \param MaximumThreads The suggested maximum number of threads to create.
* \param NoWorkTimeout The number of milliseconds after which threads without work
* will terminate.
*/
VOID PhInitializeWorkQueue(
__out PPH_WORK_QUEUE WorkQueue,
__in ULONG MinimumThreads,
__in ULONG MaximumThreads,
__in ULONG NoWorkTimeout
)
{
PhInitializeRundownProtection(&WorkQueue->RundownProtect);
WorkQueue->Terminating = FALSE;
InitializeListHead(&WorkQueue->QueueListHead);
PhInitializeQueuedLock(&WorkQueue->QueueLock);
WorkQueue->MinimumThreads = MinimumThreads;
WorkQueue->MaximumThreads = MaximumThreads;
WorkQueue->NoWorkTimeout = NoWorkTimeout;
PhInitializeQueuedLock(&WorkQueue->StateLock);
NtCreateSemaphore(&WorkQueue->SemaphoreHandle, SEMAPHORE_ALL_ACCESS, NULL, 0, MAXLONG);
WorkQueue->CurrentThreads = 0;
WorkQueue->BusyThreads = 0;
#ifdef DEBUG
PhAcquireQueuedLockExclusive(&PhDbgWorkQueueListLock);
InsertTailList(&PhDbgWorkQueueListHead, &WorkQueue->DbgListEntry);
PhReleaseQueuedLockExclusive(&PhDbgWorkQueueListLock);
#endif
}
