reactos/drivers/filesystems/fastfat/close.c

   1 /*
   2  * COPYRIGHT:        See COPYING in the top level directory
   3  * PROJECT:          ReactOS kernel
   4  * FILE:             drivers/filesystems/fastfat/close.c
   5  * PURPOSE:          VFAT Filesystem
   6  * PROGRAMMER:       Jason Filby (jasonfilby@yahoo.com)
   7  */
   8
   9 /* INCLUDES *****************************************************************/
  10
  11 #include "vfat.h"
  12
  13 #define NDEBUG
  14 #include <debug.h>
  15
  16 /* FUNCTIONS ****************************************************************/
  17
  18 /*
  19  * FUNCTION: Closes a file
  20  */
  21 NTSTATUS
  22 VfatCloseFile(
  23     PDEVICE_EXTENSION DeviceExt,
  24     PFILE_OBJECT FileObject)
  25 {
  26     PVFATFCB pFcb;
  27     PVFATCCB pCcb;
  28     BOOLEAN IsVolume;
  29     NTSTATUS Status = STATUS_SUCCESS;
  30
  31     DPRINT("VfatCloseFile(DeviceExt %p, FileObject %p)\n",
  32             DeviceExt, FileObject);
  33
  34     /* FIXME : update entry in directory? */
  35     pCcb = (PVFATCCB) (FileObject->FsContext2);
  36     pFcb = (PVFATFCB) (FileObject->FsContext);
  37
  38     if (pFcb == NULL)
  39     {
  40         return STATUS_SUCCESS;
  41     }
  42
  43     IsVolume = BooleanFlagOn(pFcb->Flags, FCB_IS_VOLUME);
  44     if (IsVolume)
  45     {
  46         DPRINT("Volume\n");
  47         FileObject->FsContext2 = NULL;
  48     }
  49     else
  50     {
  51         vfatReleaseFCB(DeviceExt, pFcb);
  52     }
  53
  54     FileObject->FsContext2 = NULL;
  55     FileObject->FsContext = NULL;
  56     FileObject->SectionObjectPointer = NULL;
  57
  58     if (pCcb)
  59     {
  60         vfatDestroyCCB(pCcb);
  61     }
  62
  63 #ifdef ENABLE_SWAPOUT
  64     if (IsVolume && DeviceExt->OpenHandleCount == 0)
  65     {
  66         VfatCheckForDismount(DeviceExt, FALSE);
  67     }
  68 #endif
  69
  70     return Status;
  71 }
  72
  73 /*
  74  * FUNCTION: Closes a file
  75  */
  76 NTSTATUS
  77 VfatClose(
  78     PVFAT_IRP_CONTEXT IrpContext)
  79 {
  80     NTSTATUS Status;
  81
  82     DPRINT("VfatClose(DeviceObject %p, Irp %p)\n", IrpContext->DeviceObject, IrpContext->Irp);
  83
  84     if (IrpContext->DeviceObject == VfatGlobalData->DeviceObject)
  85     {
  86         DPRINT("Closing file system\n");
  87         IrpContext->Irp->IoStatus.Information = 0;
  88         return STATUS_SUCCESS;
  89     }
  90     if (!ExAcquireResourceExclusiveLite(&IrpContext->DeviceExt->DirResource, BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT)))
  91     {
  92         return VfatMarkIrpContextForQueue(IrpContext);
  93     }
  94
  95     Status = VfatCloseFile(IrpContext->DeviceExt, IrpContext->FileObject);
  96     ExReleaseResourceLite(&IrpContext->DeviceExt->DirResource);
  97
  98     IrpContext->Irp->IoStatus.Information = 0;
  99
 100     return Status;
 101 }
 102
 103 /* EOF */