1 /* 2 * ReactOS kernel 3 * Copyright (C) 2002 ReactOS Team 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License along 16 * with this program; if not, write to the Free Software Foundation, Inc., 17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 18 */ 19 /* 20 * COPYRIGHT: See COPYING in the top level directory 21 * PROJECT: ReactOS kernel 22 * FILE: drivers/filesystems/cdfs/cleanup.c 23 * PURPOSE: CDROM (ISO 9660) filesystem driver 24 * PROGRAMMER: 25 * UPDATE HISTORY: 26 */ 27 28 /* INCLUDES *****************************************************************/ 29 30 #include "cdfs.h" 31 32 #define NDEBUG 33 #include <debug.h> 34 35 /* FUNCTIONS ****************************************************************/ 36 37 static NTSTATUS 38 CdfsCleanupFile(PCDFS_IRP_CONTEXT IrpContext, 39 PFILE_OBJECT FileObject) 40 /* 41 * FUNCTION: Cleans up after a file has been closed. 42 */ 43 { 44 PDEVICE_EXTENSION DeviceExt; 45 PFCB Fcb; 46 47 DPRINT("CdfsCleanupFile(IrpContext %p, FileObject %p)\n", 48 IrpContext, 49 FileObject); 50 51 DeviceExt = IrpContext->DeviceObject->DeviceExtension; 52 Fcb = FileObject->FsContext; 53 if (!Fcb) 54 { 55 return STATUS_SUCCESS; 56 } 57 58 DeviceExt->OpenHandleCount--; 59 60 /* Notify about the cleanup */ 61 FsRtlNotifyCleanup(DeviceExt->NotifySync, 62 &(DeviceExt->NotifyList), 63 FileObject->FsContext2); 64 65 if (!CdfsFCBIsDirectory(Fcb) && 66 FsRtlAreThereCurrentFileLocks(&Fcb->FileLock)) 67 { 68 FsRtlFastUnlockAll(&Fcb->FileLock, 69 FileObject, 70 IoGetRequestorProcess(IrpContext->Irp), 71 NULL); 72 } 73 74 /* Uninitialize file cache if initialized for this file object. */ 75 if (FileObject->SectionObjectPointer && FileObject->SectionObjectPointer->SharedCacheMap) 76 { 77 CcUninitializeCacheMap (FileObject, NULL, NULL); 78 } 79 80 /* Inform cleanup is complete */ 81 FileObject->Flags |= FO_CLEANUP_COMPLETE; 82 83 return STATUS_SUCCESS; 84 } 85 86 NTSTATUS NTAPI 87 CdfsCleanup( 88 PCDFS_IRP_CONTEXT IrpContext) 89 { 90 PIRP Irp; 91 PDEVICE_OBJECT DeviceObject; 92 PDEVICE_EXTENSION DeviceExtension; 93 PIO_STACK_LOCATION Stack; 94 PFILE_OBJECT FileObject; 95 NTSTATUS Status; 96 97 DPRINT("CdfsCleanup() called\n"); 98 99 ASSERT(IrpContext); 100 101 Irp = IrpContext->Irp; 102 DeviceObject = IrpContext->DeviceObject; 103 Stack = IrpContext->Stack; 104 105 if (DeviceObject == CdfsGlobalData->CdFsDeviceObject || DeviceObject == CdfsGlobalData->HddFsDeviceObject) 106 { 107 DPRINT("Closing file system\n"); 108 Status = STATUS_SUCCESS; 109 goto ByeBye; 110 } 111 112 FileObject = Stack->FileObject; 113 DeviceExtension = DeviceObject->DeviceExtension; 114 115 KeEnterCriticalRegion(); 116 ExAcquireResourceExclusiveLite(&DeviceExtension->DirResource, TRUE); 117 118 Status = CdfsCleanupFile(IrpContext, FileObject); 119 120 ExReleaseResourceLite(&DeviceExtension->DirResource); 121 KeLeaveCriticalRegion(); 122 123 ByeBye: 124 Irp->IoStatus.Information = 0; 125 126 return(Status); 127 } 128 129 /* EOF */ 130