mirror of
https://github.com/reactos/reactos.git
synced 2024-11-07 15:10:53 +00:00
144 lines
4.1 KiB
C
144 lines
4.1 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: drivers/fs/vfat/cleanup.c
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* PURPOSE: VFAT Filesystem
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* PROGRAMMER: Jason Filby (jasonfilby@yahoo.com)
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*/
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/* INCLUDES *****************************************************************/
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#define NDEBUG
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#include "vfat.h"
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/* FUNCTIONS ****************************************************************/
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/*
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* FUNCTION: Cleans up after a file has been closed.
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*/
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static NTSTATUS
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VfatCleanupFile(PVFAT_IRP_CONTEXT IrpContext)
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{
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PVFATFCB pFcb;
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PFILE_OBJECT FileObject = IrpContext->FileObject;
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DPRINT("VfatCleanupFile(DeviceExt %p, FileObject %p)\n",
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IrpContext->DeviceExt, FileObject);
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/* FIXME: handle file/directory deletion here */
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pFcb = (PVFATFCB) FileObject->FsContext;
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if (!pFcb)
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return STATUS_SUCCESS;
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if (pFcb->Flags & FCB_IS_VOLUME)
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{
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pFcb->OpenHandleCount--;
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if (pFcb->OpenHandleCount != 0)
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{
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IoRemoveShareAccess(FileObject, &pFcb->FCBShareAccess);
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}
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}
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else
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{
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if(!ExAcquireResourceExclusiveLite (&pFcb->MainResource,
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(BOOLEAN)(IrpContext->Flags & IRPCONTEXT_CANWAIT)))
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{
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return STATUS_PENDING;
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}
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if(!ExAcquireResourceExclusiveLite (&pFcb->PagingIoResource,
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(BOOLEAN)(IrpContext->Flags & IRPCONTEXT_CANWAIT)))
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{
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ExReleaseResourceLite (&pFcb->MainResource);
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return STATUS_PENDING;
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}
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pFcb->OpenHandleCount--;
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if (!(*pFcb->Attributes & FILE_ATTRIBUTE_DIRECTORY) &&
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FsRtlAreThereCurrentFileLocks(&pFcb->FileLock))
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{
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/* remove all locks this process have on this file */
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FsRtlFastUnlockAll(&pFcb->FileLock,
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FileObject,
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IoGetRequestorProcess(IrpContext->Irp),
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NULL);
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}
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if (pFcb->Flags & FCB_IS_DIRTY)
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{
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VfatUpdateEntry (pFcb);
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}
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if (pFcb->Flags & FCB_DELETE_PENDING &&
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pFcb->OpenHandleCount == 0)
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{
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PFILE_OBJECT tmpFileObject;
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tmpFileObject = pFcb->FileObject;
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if (tmpFileObject != NULL)
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{
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pFcb->FileObject = NULL;
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CcUninitializeCacheMap(tmpFileObject, NULL, NULL);
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ObDereferenceObject(tmpFileObject);
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}
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CcPurgeCacheSection(FileObject->SectionObjectPointer, NULL, 0, FALSE);
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}
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/* Uninitialize the cache (should be done even if caching was never initialized) */
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CcUninitializeCacheMap(FileObject, &pFcb->RFCB.FileSize, NULL);
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if (pFcb->OpenHandleCount != 0)
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{
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IoRemoveShareAccess(FileObject, &pFcb->FCBShareAccess);
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}
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FileObject->Flags |= FO_CLEANUP_COMPLETE;
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ExReleaseResourceLite (&pFcb->PagingIoResource);
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ExReleaseResourceLite (&pFcb->MainResource);
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}
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return STATUS_SUCCESS;
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}
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/*
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* FUNCTION: Cleans up after a file has been closed.
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*/
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NTSTATUS VfatCleanup(PVFAT_IRP_CONTEXT IrpContext)
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{
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NTSTATUS Status;
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DPRINT("VfatCleanup(DeviceObject %p, Irp %p)\n", IrpContext->DeviceObject, IrpContext->Irp);
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if (IrpContext->DeviceObject == VfatGlobalData->DeviceObject)
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{
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Status = STATUS_SUCCESS;
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goto ByeBye;
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}
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if (!ExAcquireResourceExclusiveLite (&IrpContext->DeviceExt->DirResource,
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(BOOLEAN)(IrpContext->Flags & IRPCONTEXT_CANWAIT)))
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{
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return VfatQueueRequest (IrpContext);
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}
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Status = VfatCleanupFile(IrpContext);
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ExReleaseResourceLite (&IrpContext->DeviceExt->DirResource);
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if (Status == STATUS_PENDING)
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{
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return VfatQueueRequest(IrpContext);
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}
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ByeBye:
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IrpContext->Irp->IoStatus.Status = Status;
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IrpContext->Irp->IoStatus.Information = 0;
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IoCompleteRequest (IrpContext->Irp, IO_NO_INCREMENT);
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VfatFreeIrpContext(IrpContext);
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return (Status);
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}
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/* EOF */
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