reactos/drivers/filesystems/cdfs/cleanup.c
2017-11-05 13:57:41 +01:00

130 lines
3.6 KiB
C

/*
* ReactOS kernel
* Copyright (C) 2002 ReactOS Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: drivers/filesystems/cdfs/cleanup.c
* PURPOSE: CDROM (ISO 9660) filesystem driver
* PROGRAMMER:
* UPDATE HISTORY:
*/
/* INCLUDES *****************************************************************/
#include "cdfs.h"
#define NDEBUG
#include <debug.h>
/* FUNCTIONS ****************************************************************/
static NTSTATUS
CdfsCleanupFile(PCDFS_IRP_CONTEXT IrpContext,
PFILE_OBJECT FileObject)
/*
* FUNCTION: Cleans up after a file has been closed.
*/
{
PDEVICE_EXTENSION DeviceExt;
PFCB Fcb;
DPRINT("CdfsCleanupFile(IrpContext %p, FileObject %p)\n",
IrpContext,
FileObject);
DeviceExt = IrpContext->DeviceObject->DeviceExtension;
Fcb = FileObject->FsContext;
if (!Fcb)
{
return STATUS_SUCCESS;
}
DeviceExt->OpenHandleCount--;
/* Notify about the cleanup */
FsRtlNotifyCleanup(DeviceExt->NotifySync,
&(DeviceExt->NotifyList),
FileObject->FsContext2);
if (!CdfsFCBIsDirectory(Fcb) &&
FsRtlAreThereCurrentFileLocks(&Fcb->FileLock))
{
FsRtlFastUnlockAll(&Fcb->FileLock,
FileObject,
IoGetRequestorProcess(IrpContext->Irp),
NULL);
}
/* Uninitialize file cache if initialized for this file object. */
if (FileObject->SectionObjectPointer && FileObject->SectionObjectPointer->SharedCacheMap)
{
CcUninitializeCacheMap (FileObject, NULL, NULL);
}
/* Inform cleanup is complete */
FileObject->Flags |= FO_CLEANUP_COMPLETE;
return STATUS_SUCCESS;
}
NTSTATUS NTAPI
CdfsCleanup(
PCDFS_IRP_CONTEXT IrpContext)
{
PIRP Irp;
PDEVICE_OBJECT DeviceObject;
PDEVICE_EXTENSION DeviceExtension;
PIO_STACK_LOCATION Stack;
PFILE_OBJECT FileObject;
NTSTATUS Status;
DPRINT("CdfsCleanup() called\n");
ASSERT(IrpContext);
Irp = IrpContext->Irp;
DeviceObject = IrpContext->DeviceObject;
Stack = IrpContext->Stack;
if (DeviceObject == CdfsGlobalData->CdFsDeviceObject || DeviceObject == CdfsGlobalData->HddFsDeviceObject)
{
DPRINT("Closing file system\n");
Status = STATUS_SUCCESS;
goto ByeBye;
}
FileObject = Stack->FileObject;
DeviceExtension = DeviceObject->DeviceExtension;
KeEnterCriticalRegion();
ExAcquireResourceExclusiveLite(&DeviceExtension->DirResource, TRUE);
Status = CdfsCleanupFile(IrpContext, FileObject);
ExReleaseResourceLite(&DeviceExtension->DirResource);
KeLeaveCriticalRegion();
ByeBye:
Irp->IoStatus.Information = 0;
return(Status);
}
/* EOF */