119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
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/*++
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Copyright (c) 1998-1999 Microsoft Corporation
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Module Name:
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notify.c
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Abstract:
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User-mode interface to UL.SYS.
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Author:
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Paul McDaniel (paulmcd) 07-Mar-2000
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Revision History:
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--*/
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#include "precomp.h"
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//
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// Private macros.
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//
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//
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// Private prototypes.
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//
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//
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// Public functions.
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//
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/***************************************************************************++
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Routine Description:
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SrWaitForNotificaiton is used to receive volume activity notifications
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from the driver. This includes new volume, delete volume, and out of disk
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space for a volume.
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Arguments:
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ControlHandle - the HANDLE from SrCreateControlHandle.
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pNotification - the buffer to hold the NOTIFICATION_RECORD.
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NotificationLength - the length in bytes of pNotification
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pOverlapped - an OVERLAPPED structure if async io is enabled on the
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HANDLE.
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Return Value:
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ULONG - Completion status.
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--***************************************************************************/
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ULONG
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WINAPI
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SrWaitForNotification(
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IN HANDLE ControlHandle,
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OUT PSR_NOTIFICATION_RECORD pNotification,
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IN ULONG NotificationLength,
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IN LPOVERLAPPED pOverlapped OPTIONAL
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)
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{
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NTSTATUS Status;
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#if DBG
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RtlFillMemory( pNotification, NotificationLength, '\xcc' );
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#endif
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//
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// Make the request.
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//
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if (pOverlapped == NULL)
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{
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Status = SrpSynchronousDeviceControl(
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ControlHandle, // FileHandle
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IOCTL_SR_WAIT_FOR_NOTIFICATION, // IoControlCode
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NULL, // pInputBuffer
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0, // InputBufferLength
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pNotification, // pOutputBuffer
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NotificationLength, // OutputBufferLength
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NULL // pBytesTransferred
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);
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}
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else
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{
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Status = SrpOverlappedDeviceControl(
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ControlHandle, // FileHandle
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pOverlapped, // pOverlapped
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IOCTL_SR_WAIT_FOR_NOTIFICATION, // IoControlCode
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NULL, // pInputBuffer
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0, // InputBufferLength
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pNotification, // pOutputBuffer
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NotificationLength, // OutputBufferLength
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NULL // pBytesTransferred
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);
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}
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return SrpNtStatusToWin32Status( Status );
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} // SrWaitForNotification
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//
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// Private functions.
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//
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