reactos/drivers/filesystems/cdfs/close.c

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 2002 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License along
  16  *  with this program; if not, write to the Free Software Foundation, Inc.,
  17  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19 /*
  20  * COPYRIGHT:        See COPYING in the top level directory
  21  * PROJECT:          ReactOS kernel
  22  * FILE:             services/fs/cdfs/close.c
  23  * PURPOSE:          CDROM (ISO 9660) filesystem driver
  24  * PROGRAMMER:       Art Yerkes
  25  * UPDATE HISTORY:
  26  */
  27
  28 /* INCLUDES *****************************************************************/
  29
  30 #include "cdfs.h"
  31
  32 #define NDEBUG
  33 #include <debug.h>
  34
  35 /* FUNCTIONS ****************************************************************/
  36
  37 NTSTATUS
  38 CdfsCloseFile(PDEVICE_EXTENSION DeviceExt,
  39               PFILE_OBJECT FileObject)
  40               /*
  41               * FUNCTION: Closes a file
  42               */
  43 {
  44     PCCB Ccb;
  45
  46     DPRINT("CdfsCloseFile(DeviceExt %p, FileObject %p)\n",
  47         DeviceExt,
  48         FileObject);
  49
  50     Ccb = (PCCB)(FileObject->FsContext2);
  51
  52     DPRINT("Ccb %p\n", Ccb);
  53     if (Ccb == NULL)
  54     {
  55         return(STATUS_SUCCESS);
  56     }
  57
  58     FileObject->FsContext2 = NULL;
  59
  60     if (FileObject->FileName.Buffer)
  61     {
  62         // This a FO, that was created outside from FSD.
  63         // Some FO's are created with IoCreateStreamFileObject() insid from FSD.
  64         // This FO's don't have a FileName.
  65         CdfsReleaseFCB(DeviceExt, FileObject->FsContext);
  66     }
  67
  68     if (Ccb->DirectorySearchPattern.Buffer)
  69     {
  70         ExFreePoolWithTag(Ccb->DirectorySearchPattern.Buffer, TAG_CCB);
  71     }
  72     ExFreePoolWithTag(Ccb, TAG_CCB);
  73
  74     return(STATUS_SUCCESS);
  75 }
  76
  77
  78 NTSTATUS NTAPI
  79 CdfsClose(PDEVICE_OBJECT DeviceObject,
  80           PIRP Irp)
  81 {
  82     PDEVICE_EXTENSION DeviceExtension;
  83     PIO_STACK_LOCATION Stack;
  84     PFILE_OBJECT FileObject;
  85     NTSTATUS Status;
  86
  87     DPRINT("CdfsClose() called\n");
  88
  89     if (DeviceObject == CdfsGlobalData->DeviceObject)
  90     {
  91         DPRINT("Closing file system\n");
  92         Status = STATUS_SUCCESS;
  93         goto ByeBye;
  94     }
  95
  96     Stack = IoGetCurrentIrpStackLocation(Irp);
  97     FileObject = Stack->FileObject;
  98     DeviceExtension = DeviceObject->DeviceExtension;
  99
 100     Status = CdfsCloseFile(DeviceExtension,FileObject);
 101
 102 ByeBye:
 103     Irp->IoStatus.Status = Status;
 104     Irp->IoStatus.Information = 0;
 105
 106     IoCompleteRequest(Irp, IO_NO_INCREMENT);
 107     return(Status);
 108 }
 109
 110 /* EOF */