reactos/reactos/drivers/filesystems/fastfat/close.c
Thomas Faber 7f5f21a52f [FASTFAT]
- Do not delete files that have open handles
- Delete on cleanup instead of close, and do not depend on FileObject->DeletePending (since the last file object is not necessarily the one that caused the delete)
CORE-9433

svn path=/trunk/; revision=66931
2015-03-28 16:58:53 +00:00

113 lines
2.7 KiB
C

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: drivers/filesystems/fastfat/close.c
* PURPOSE: VFAT Filesystem
* PROGRAMMER: Jason Filby (jasonfilby@yahoo.com)
*/
/* INCLUDES *****************************************************************/
#include "vfat.h"
#define NDEBUG
#include <debug.h>
/* FUNCTIONS ****************************************************************/
/*
* FUNCTION: Closes a file
*/
NTSTATUS
VfatCloseFile(
PDEVICE_EXTENSION DeviceExt,
PFILE_OBJECT FileObject)
{
PVFATFCB pFcb;
PVFATCCB pCcb;
NTSTATUS Status = STATUS_SUCCESS;
DPRINT("VfatCloseFile(DeviceExt %p, FileObject %p)\n",
DeviceExt, FileObject);
/* FIXME : update entry in directory? */
pCcb = (PVFATCCB) (FileObject->FsContext2);
pFcb = (PVFATFCB) (FileObject->FsContext);
if (pFcb == NULL)
{
return STATUS_SUCCESS;
}
if (pFcb->Flags & FCB_IS_VOLUME)
{
DPRINT("Volume\n");
FileObject->FsContext2 = NULL;
}
else
{
vfatReleaseFCB(DeviceExt, pFcb);
}
FileObject->FsContext2 = NULL;
FileObject->FsContext = NULL;
FileObject->SectionObjectPointer = NULL;
DeviceExt->OpenHandleCount--;
if (pCcb)
{
vfatDestroyCCB(pCcb);
}
#ifdef ENABLE_SWAPOUT
if (DeviceExt->OpenHandleCount == 0)
{
VfatCheckForDismount(DeviceExt, FALSE);
}
#endif
return Status;
}
/*
* FUNCTION: Closes a file
*/
NTSTATUS
VfatClose(
PVFAT_IRP_CONTEXT IrpContext)
{
NTSTATUS Status;
DPRINT("VfatClose(DeviceObject %p, Irp %p)\n", IrpContext->DeviceObject, IrpContext->Irp);
if (IrpContext->DeviceObject == VfatGlobalData->DeviceObject)
{
DPRINT("Closing file system\n");
Status = STATUS_SUCCESS;
goto ByeBye;
}
#if 0
/* There occurs a dead look at the call to CcRosDeleteFileCache/ObDereferenceObject/VfatClose
in CmLazyCloseThreadMain if VfatClose is execute asynchronous in a worker thread. */
if (!ExAcquireResourceExclusiveLite(&IrpContext->DeviceExt->DirResource, IrpContext->Flags & IRPCONTEXT_CANWAIT))
#else
if (!ExAcquireResourceExclusiveLite(&IrpContext->DeviceExt->DirResource, TRUE))
#endif
{
return VfatQueueRequest(IrpContext);
}
Status = VfatCloseFile(IrpContext->DeviceExt, IrpContext->FileObject);
ExReleaseResourceLite(&IrpContext->DeviceExt->DirResource);
ByeBye:
IrpContext->Irp->IoStatus.Status = Status;
IrpContext->Irp->IoStatus.Information = 0;
IoCompleteRequest(IrpContext->Irp, IO_NO_INCREMENT);
VfatFreeIrpContext(IrpContext);
return Status;
}
/* EOF */