reactos/drivers/fs/vfat/close.c

   1 /* $Id: close.c,v 1.3 2000/12/29 23:17:12 dwelch Exp $
   2  *
   3  * COPYRIGHT:        See COPYING in the top level directory
   4  * PROJECT:          ReactOS kernel
   5  * FILE:             services/fs/vfat/close.c
   6  * PURPOSE:          VFAT Filesystem
   7  * PROGRAMMER:       Jason Filby (jasonfilby@yahoo.com)
   8  */
   9
  10 /* INCLUDES *****************************************************************/
  11
  12 #include <ddk/ntddk.h>
  13
  14 #define NDEBUG
  15 #include <debug.h>
  16
  17 #include "vfat.h"
  18
  19 /* FUNCTIONS ****************************************************************/
  20
  21 NTSTATUS
  22 VfatCloseFile (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject)
  23 /*
  24  * FUNCTION: Closes a file
  25  */
  26 {
  27   PVFATFCB pFcb;
  28   PVFATCCB pCcb;
  29   KIRQL oldIrql;
  30
  31   DPRINT ("FsdCloseFile(DeviceExt %x, FileObject %x)\n",
  32           DeviceExt, FileObject);
  33
  34   //FIXME : update entry in directory ?
  35   pCcb = (PVFATCCB) (FileObject->FsContext2);
  36
  37   DPRINT ("pCcb %x\n", pCcb);
  38   if (pCcb == NULL)
  39     {
  40       return (STATUS_SUCCESS);
  41     }
  42
  43   pFcb = pCcb->pFcb;
  44
  45   pFcb->RefCount--;
  46   if (pFcb->RefCount <= 0)
  47     {
  48       KeAcquireSpinLock (&DeviceExt->FcbListLock, &oldIrql);
  49       RemoveEntryList (&pFcb->FcbListEntry);
  50       KeReleaseSpinLock (&DeviceExt->FcbListLock, oldIrql);
  51       ExFreePool (pFcb);
  52     }
  53   ExFreePool (pCcb);
  54   return STATUS_SUCCESS;
  55 }
  56
  57 NTSTATUS STDCALL
  58 VfatClose (PDEVICE_OBJECT DeviceObject, PIRP Irp)
  59 /*
  60  * FUNCTION: Closes a file
  61  */
  62 {
  63   PIO_STACK_LOCATION Stack = IoGetCurrentIrpStackLocation (Irp);
  64   PFILE_OBJECT FileObject = Stack->FileObject;
  65   PDEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
  66   NTSTATUS Status;
  67
  68   DPRINT ("FsdClose(DeviceObject %x, Irp %x)\n", DeviceObject, Irp);
  69
  70   Status = VfatCloseFile (DeviceExtension, FileObject);
  71
  72   Irp->IoStatus.Status = Status;
  73   Irp->IoStatus.Information = 0;
  74
  75   IoCompleteRequest (Irp, IO_NO_INCREMENT);
  76   return (Status);
  77 }
  78
  79 /* EOF */