misc.c File Reference

#include "sermouse.h"
#include <debug.h>

Include dependency graph for misc.c:

Go to the source code of this file.

Functions
static NTSTATUS NTAPI	ForwardIrpAndWaitCompletion (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp, IN PVOID Context)
NTSTATUS	ForwardIrpAndWait (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
NTSTATUS NTAPI	ForwardIrpAndForget (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)

Variables
static IO_COMPLETION_ROUTINE	ForwardIrpAndWaitCompletion

Function Documentation

ForwardIrpAndForget()

NTSTATUS NTAPI ForwardIrpAndForget	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PIRP	Irp
	)

Definition at line 53 of file misc.c.

{
    PDEVICE_OBJECT LowerDevice = ((PSERMOUSE_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->LowerDevice;

    IoSkipCurrentIrpStackLocation(Irp);
    return IoCallDriver(LowerDevice, Irp);
}

ForwardIrpAndWait()

NTSTATUS ForwardIrpAndWait	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PIRP	Irp
	)

Definition at line 27 of file misc.c.

{
    PDEVICE_OBJECT LowerDevice = ((PSERMOUSE_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->LowerDevice;
    KEVENT Event;
    NTSTATUS Status;

    KeInitializeEvent(&Event, NotificationEvent, FALSE);
    IoCopyCurrentIrpStackLocationToNext(Irp);

    TRACE_(SERMOUSE, "Calling lower device %p\n", LowerDevice);
    IoSetCompletionRoutine(Irp, ForwardIrpAndWaitCompletion, &Event, TRUE, TRUE, TRUE);

    Status = IoCallDriver(LowerDevice, Irp);
    if (Status == STATUS_PENDING)
    {
        Status = KeWaitForSingleObject(&Event, Suspended, KernelMode, FALSE, NULL);
        if (NT_SUCCESS(Status))
            Status = Irp->IoStatus.Status;
    }

    return Status;
}

ForwardIrpAndWaitCompletion()

static NTSTATUS NTAPI ForwardIrpAndWaitCompletion ( IN PDEVICE_OBJECT  DeviceObject, IN PIRP  Irp, IN PVOID  Context  )

static

Definition at line 16 of file misc.c.

{
    if (Irp->PendingReturned)
        KeSetEvent((PKEVENT)Context, IO_NO_INCREMENT, FALSE);
    return STATUS_MORE_PROCESSING_REQUIRED;
}

Variable Documentation

ForwardIrpAndWaitCompletion

IO_COMPLETION_ROUTINE ForwardIrpAndWaitCompletion

static

Definition at line 13 of file misc.c.

Referenced by ForwardIrpAndWait().