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 #ifdef KDBG
  52         pFcb->Flags |= FCB_CLOSED;
  53 #endif
  54         vfatReleaseFCB(DeviceExt, pFcb);
  55     }
  56
  57     FileObject->FsContext2 = NULL;
  58     FileObject->FsContext = NULL;
  59     FileObject->SectionObjectPointer = NULL;
  60
  61     if (pCcb)
  62     {
  63         vfatDestroyCCB(pCcb);
  64     }
  65
  66 #ifdef ENABLE_SWAPOUT
  67     if (IsVolume && DeviceExt->OpenHandleCount == 0)
  68     {
  69         VfatCheckForDismount(DeviceExt, FALSE);
  70     }
  71 #endif
  72
  73     return Status;
  74 }
  75
  76 /*
  77  * FUNCTION: Closes a file
  78  */
  79 NTSTATUS
  80 VfatClose(
  81     PVFAT_IRP_CONTEXT IrpContext)
  82 {
  83     NTSTATUS Status;
  84
  85     DPRINT("VfatClose(DeviceObject %p, Irp %p)\n", IrpContext->DeviceObject, IrpContext->Irp);
  86
  87     if (IrpContext->DeviceObject == VfatGlobalData->DeviceObject)
  88     {
  89         DPRINT("Closing file system\n");
  90         IrpContext->Irp->IoStatus.Information = 0;
  91         return STATUS_SUCCESS;
  92     }
  93     if (!ExAcquireResourceExclusiveLite(&IrpContext->DeviceExt->DirResource, BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT)))
  94     {
  95         return VfatMarkIrpContextForQueue(IrpContext);
  96     }
  97
  98     Status = VfatCloseFile(IrpContext->DeviceExt, IrpContext->FileObject);
  99     ExReleaseResourceLite(&IrpContext->DeviceExt->DirResource);
 100
 101     IrpContext->Irp->IoStatus.Information = 0;
 102
 103     return Status;
 104 }
 105
 106 /* EOF */