drivers/filesystems/ntfs/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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
  18  *
  19  * COPYRIGHT:        See COPYING in the top level directory
  20  * PROJECT:          ReactOS kernel
  21  * FILE:             drivers/filesystem/ntfs/close.c
  22  * PURPOSE:          NTFS filesystem driver
  23  * PROGRAMMER:       Art Yerkes
  24  * UPDATE HISTORY:
  25  */
  26
  27 /* INCLUDES *****************************************************************/
  28
  29 #include "ntfs.h"
  30
  31 #define NDEBUG
  32 #include <debug.h>
  33
  34 /* FUNCTIONS ****************************************************************/
  35
  36 /*
  37  * FUNCTION: Closes a file
  38  */
  39 NTSTATUS
  40 NtfsCloseFile(PDEVICE_EXTENSION DeviceExt,
  41               PFILE_OBJECT FileObject)
  42 {
  43     PNTFS_CCB Ccb;
  44     PNTFS_FCB Fcb;
  45
  46     DPRINT("NtfsCloseFile(DeviceExt %p, FileObject %p)\n",
  47            DeviceExt,
  48            FileObject);
  49
  50     Ccb = (PNTFS_CCB)(FileObject->FsContext2);
  51     Fcb = (PNTFS_FCB)(FileObject->FsContext);
  52
  53     DPRINT("Ccb %p\n", Ccb);
  54     if (Ccb == NULL)
  55     {
  56         return STATUS_SUCCESS;
  57     }
  58
  59     FileObject->FsContext2 = NULL;
  60     FileObject->FsContext = NULL;
  61     FileObject->SectionObjectPointer = NULL;
  62     DeviceExt->OpenHandleCount--;
  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         NtfsReleaseFCB(DeviceExt, Fcb);
  70     }
  71
  72     if (Ccb->DirectorySearchPattern)
  73     {
  74         ExFreePool(Ccb->DirectorySearchPattern);
  75     }
  76
  77     ExFreePool(Ccb);
  78
  79     return STATUS_SUCCESS;
  80 }
  81
  82
  83 NTSTATUS
  84 NtfsClose(PNTFS_IRP_CONTEXT IrpContext)
  85 {
  86     PDEVICE_EXTENSION DeviceExtension;
  87     PFILE_OBJECT FileObject;
  88     NTSTATUS Status;
  89     PDEVICE_OBJECT DeviceObject;
  90
  91     DPRINT("NtfsClose() called\n");
  92
  93     DeviceObject = IrpContext->DeviceObject;
  94     if (DeviceObject == NtfsGlobalData->DeviceObject)
  95     {
  96         DPRINT("Closing file system\n");
  97         IrpContext->Irp->IoStatus.Information = 0;
  98         return STATUS_SUCCESS;
  99     }
 100
 101     FileObject = IrpContext->FileObject;
 102     DeviceExtension = DeviceObject->DeviceExtension;
 103
 104     if (!ExAcquireResourceExclusiveLite(&DeviceExtension->DirResource,
 105                                         BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT)))
 106     {
 107         return NtfsMarkIrpContextForQueue(IrpContext);
 108     }
 109
 110     Status = NtfsCloseFile(DeviceExtension, FileObject);
 111
 112     ExReleaseResourceLite(&DeviceExtension->DirResource);
 113
 114     if (Status == STATUS_PENDING)
 115     {
 116         return NtfsMarkIrpContextForQueue(IrpContext);
 117     }
 118
 119     IrpContext->Irp->IoStatus.Information = 0;
 120     return Status;
 121 }
 122
 123 /* EOF */