PIRP DequeueDeferredClientIrp ( PCLASS_PRIVATE_FDO_DATA FdoData )

Definition at line 47 of file clntirp.c.

{
    KIRQL oldIrql;
    PLIST_ENTRY listEntry;
    PIRP irp;

    KeAcquireSpinLock(&FdoData->SpinLock, &oldIrql);
    if (IsListEmpty(&FdoData->DeferredClientIrpList)){
        listEntry = NULL;
    }
    else {
        listEntry = RemoveHeadList(&FdoData->DeferredClientIrpList);
    }
    KeReleaseSpinLock(&FdoData->SpinLock, oldIrql);

    if (listEntry == NULL) {
        irp = NULL;
    } else {
        irp = CONTAINING_RECORD(listEntry, IRP, Tail.Overlay.ListEntry);
        ASSERT(irp->Type == IO_TYPE_IRP);
        InitializeListHead(&irp->Tail.Overlay.ListEntry);
    }

    return irp;
}

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