C++ (Cpp) Serenum_FDO_Power示例

示例#1

文件： power.c 项目： kcrazy/winekit

NTSTATUS
Serenum_Power (
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    )
/*++
--*/
{
    PIO_STACK_LOCATION  irpStack;
    NTSTATUS            status;
    PCOMMON_DEVICE_DATA commonData;

    status = STATUS_SUCCESS;
    irpStack = IoGetCurrentIrpStackLocation (Irp);
    ASSERT (IRP_MJ_POWER == irpStack->MajorFunction);

    commonData = (PCOMMON_DEVICE_DATA) DeviceObject->DeviceExtension;

    if (commonData->IsFDO) {
        status =
            Serenum_FDO_Power ((PFDO_DEVICE_DATA) DeviceObject->DeviceExtension,
                Irp);
    } else {
        status =
            Serenum_PDO_Power ((PPDO_DEVICE_DATA) DeviceObject->DeviceExtension,
                Irp);
    }

    return status;
}

示例#2

文件： power.c 项目： 340211173/Windows-driver-samples

NTSTATUS
Serenum_Power (
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    )
/*++
--*/
{
#if DBG
    PIO_STACK_LOCATION  irpStack;
#endif 
    NTSTATUS            status;
    PCOMMON_DEVICE_DATA commonData;


	commonData = (PCOMMON_DEVICE_DATA) DeviceObject->DeviceExtension;
	status=IoAcquireRemoveLock(&commonData->RemoveLock,Irp);
	if(!NT_SUCCESS(status)){
		Irp->IoStatus.Information=0;
		Irp->IoStatus.Status=status;
		IoCompleteRequest(Irp,IO_NO_INCREMENT);
		// The Device Object has been removed 
		//PoStartNextPowerIrp(Irp);
		return status;
	}

#if DBG
    
    irpStack = IoGetCurrentIrpStackLocation (Irp);
    ASSERT (IRP_MJ_POWER == irpStack->MajorFunction);

#endif    
    if (commonData->IsFDO) {
        status =
            Serenum_FDO_Power ((PFDO_DEVICE_DATA) DeviceObject->DeviceExtension,
                Irp);
    } else {
        status =
            Serenum_PDO_Power ((PPDO_DEVICE_DATA) DeviceObject->DeviceExtension,
                Irp);
    }

    return status;
}