reactos/drivers/filesystems/fastfat/close.c
Cameron Gutman 2b82fe44ea [WLAN-BRINGUP]
- Create a branch to drop my ndisuio work

svn path=/branches/wlan-bringup/; revision=54809
2012-01-02 20:53:24 +00:00

111 lines
2.6 KiB
C

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: drivers/fs/vfat/close.c
* PURPOSE: VFAT Filesystem
* PROGRAMMER: Jason Filby (jasonfilby@yahoo.com)
*/
/* INCLUDES *****************************************************************/
#define NDEBUG
#include "vfat.h"
/* FUNCTIONS ****************************************************************/
NTSTATUS
VfatCloseFile (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject)
/*
* FUNCTION: Closes a file
*/
{
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)
{
DPRINT1("Volume\n");
pFcb->RefCount--;
FileObject->FsContext2 = NULL;
}
else
{
if (FileObject->DeletePending)
{
if (pFcb->Flags & FCB_DELETE_PENDING)
{
VfatDelEntry (DeviceExt, pFcb);
}
else
{
Status = STATUS_DELETE_PENDING;
}
}
vfatReleaseFCB (DeviceExt, pFcb);
}
FileObject->FsContext2 = NULL;
FileObject->FsContext = NULL;
FileObject->SectionObjectPointer = NULL;
if (pCcb)
{
vfatDestroyCCB(pCcb);
}
return Status;
}
NTSTATUS VfatClose (PVFAT_IRP_CONTEXT IrpContext)
/*
* FUNCTION: Closes a file
*/
{
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 */