cleanup.c

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/*
*  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.
*/
/* $Id: cleanup.c 43790 2009-10-27 10:34:16Z dgorbachev $
*
* COPYRIGHT:        See COPYING in the top level directory
* PROJECT:          ReactOS kernel
* FILE:             services/fs/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(PDEVICE_EXTENSION DeviceExt,
                PFILE_OBJECT FileObject)
                /*
                * FUNCTION: Cleans up after a file has been closed.
                */
{

    DPRINT("CdfsCleanupFile(DeviceExt %x, FileObject %x)\n",
        DeviceExt,
        FileObject);


    /* Uninitialize file cache if initialized for this file object. */
    if (FileObject->SectionObjectPointer && FileObject->SectionObjectPointer->SharedCacheMap)
    {
        CcUninitializeCacheMap (FileObject, NULL, NULL);
    }

    return STATUS_SUCCESS;
}

NTSTATUS NTAPI
CdfsCleanup(PDEVICE_OBJECT DeviceObject,
            PIRP Irp)
{
    PDEVICE_EXTENSION DeviceExtension;
    PIO_STACK_LOCATION Stack;
    PFILE_OBJECT FileObject;
    NTSTATUS Status;

    DPRINT("CdfsCleanup() called\n");

    if (DeviceObject == CdfsGlobalData->DeviceObject)
    {
        DPRINT("Closing file system\n");
        Status = STATUS_SUCCESS;
        goto ByeBye;
    }

    Stack = IoGetCurrentIrpStackLocation(Irp);
    FileObject = Stack->FileObject;
    DeviceExtension = DeviceObject->DeviceExtension;

    KeEnterCriticalRegion();
    ExAcquireResourceExclusiveLite(&DeviceExtension->DirResource, TRUE);

    Status = CdfsCleanupFile(DeviceExtension, FileObject);

    ExReleaseResourceLite(&DeviceExtension->DirResource);
    KeLeaveCriticalRegion();


ByeBye:
    Irp->IoStatus.Status = Status;
    Irp->IoStatus.Information = 0;

    IoCompleteRequest(Irp, IO_NO_INCREMENT);
    return(Status);
}

/* EOF */