reactos/drivers/fs/vfat/close.c

   1 /* $Id: close.c,v 1.1 2000/07/07 02:14:14 ekohl 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 FsdCloseFile(PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject)
  22 /*
  23  * FUNCTION: Closes a file
  24  */
  25 {
  26    PVFATFCB pFcb;
  27    PVFATCCB pCcb;
  28    KIRQL oldIrql;
  29
  30    DPRINT("FsdCloseFile(DeviceExt %x, FileObject %x)\n",
  31           DeviceExt,FileObject);
  32
  33  //FIXME : update entry in directory ?
  34    pCcb = (PVFATCCB)(FileObject->FsContext2);
  35
  36    DPRINT("pCcb %x\n",pCcb);
  37    if (pCcb == NULL)
  38      {
  39         return(STATUS_SUCCESS);
  40      }
  41
  42    pFcb = pCcb->pFcb;
  43
  44    pFcb->RefCount--;
  45    if(pFcb->RefCount<=0)
  46    {
  47       KeAcquireSpinLock(&DeviceExt->FcbListLock, &oldIrql);
  48       RemoveEntryList(&pFcb->FcbListEntry);
  49       KeReleaseSpinLock(&DeviceExt->FcbListLock, oldIrql);
  50       ExFreePool(pFcb);
  51    }
  52    ExFreePool(pCcb);
  53    return STATUS_SUCCESS;
  54 }
  55
  56 NTSTATUS FsdClose(PDEVICE_OBJECT DeviceObject, PIRP Irp)
  57 /*
  58  * FUNCTION: Closes a file
  59  */
  60 {
  61    PIO_STACK_LOCATION Stack = IoGetCurrentIrpStackLocation(Irp);
  62    PFILE_OBJECT FileObject = Stack->FileObject;
  63    PDEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
  64    NTSTATUS Status;
  65
  66    DPRINT("FsdClose(DeviceObject %x, Irp %x)\n",DeviceObject, Irp);
  67
  68    Status = FsdCloseFile(DeviceExtension,FileObject);
  69
  70    Irp->IoStatus.Status = Status;
  71    Irp->IoStatus.Information = 0;
  72
  73    IoCompleteRequest(Irp, IO_NO_INCREMENT);
  74    return(Status);
  75 }
  76
  77 /* EOF */