reactos/drivers/fs/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
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id: close.c,v 1.2 2002/05/01 13:15:42 ekohl Exp $
  20  *
  21  * COPYRIGHT:        See COPYING in the top level directory
  22  * PROJECT:          ReactOS kernel
  23  * FILE:             services/fs/cdfs/close.c
  24  * PURPOSE:          CDROM (ISO 9660) filesystem driver
  25  * PROGRAMMER:       Art Yerkes
  26  * UPDATE HISTORY:
  27  */
  28
  29 /* INCLUDES *****************************************************************/
  30
  31 #include <ddk/ntddk.h>
  32
  33 #define NDEBUG
  34 #include <debug.h>
  35
  36 #include "cdfs.h"
  37
  38
  39 /* FUNCTIONS ****************************************************************/
  40
  41 static NTSTATUS
  42 CdfsCloseFile(PDEVICE_EXTENSION DeviceExt,
  43               PFILE_OBJECT FileObject)
  44 /*
  45  * FUNCTION: Closes a file
  46  */
  47 {
  48   PCCB Ccb;
  49
  50   DPRINT("CdfsCloseFile(DeviceExt %x, FileObject %x)\n",
  51          DeviceExt,
  52          FileObject);
  53
  54   Ccb = (PCCB)(FileObject->FsContext2);
  55
  56   DPRINT("Ccb %x\n", Ccb);
  57   if (Ccb == NULL)
  58     {
  59       return(STATUS_SUCCESS);
  60     }
  61
  62   FileObject->FsContext2 = NULL;
  63
  64   if (FileObject->FileName.Buffer)
  65     {
  66       // This a FO, that was created outside from FSD.
  67       // Some FO's are created with IoCreateStreamFileObject() insid from FSD.
  68       // This FO's don't have a FileName.
  69       CdfsReleaseFCB(DeviceExt,
  70                      Ccb->Fcb);
  71     }
  72
  73   ExFreePool(Ccb);
  74
  75   return(STATUS_SUCCESS);
  76 }
  77
  78
  79 NTSTATUS STDCALL
  80 CdfsClose(PDEVICE_OBJECT DeviceObject,
  81           PIRP Irp)
  82 {
  83   PDEVICE_EXTENSION DeviceExtension;
  84   PIO_STACK_LOCATION Stack;
  85   PFILE_OBJECT FileObject;
  86   NTSTATUS Status;
  87
  88   DPRINT("CdfsClose() called\n");
  89
  90   Stack = IoGetCurrentIrpStackLocation(Irp);
  91   FileObject = Stack->FileObject;
  92   DeviceExtension = DeviceObject->DeviceExtension;
  93
  94   Status = CdfsCloseFile(DeviceExtension,FileObject);
  95
  96   Irp->IoStatus.Status = Status;
  97   Irp->IoStatus.Information = 0;
  98
  99   IoCompleteRequest(Irp, IO_NO_INCREMENT);
 100   return(Status);
 101 }
 102
 103 /* EOF */