2 * Copyright (c) 2008, 2009, 2010, 2011 Kernel Drivers, LLC.
3 * Copyright (c) 2009, 2010, 2011 Your File System, Inc.
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7 * modification, are permitted provided that the following conditions
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36 // File: AFSWorker.cpp
39 #include "AFSCommon.h"
42 // Function: AFSInitializeWorkerPool
46 // This function initializes the worker thread pool
50 // A status is returned for the function
54 AFSInitializeWorkerPool()
57 NTSTATUS ntStatus = STATUS_SUCCESS;
58 AFSWorkQueueContext *pCurrentWorker = NULL, *pLastWorker = NULL;
59 AFSDeviceExt *pDevExt = NULL;
64 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
67 // Initialize the worker threads.
70 pDevExt->Specific.Library.WorkerCount = 0;
72 KeInitializeEvent( &pDevExt->Specific.Library.WorkerQueueHasItems,
77 // Initialize the queue resource
80 ExInitializeResourceLite( &pDevExt->Specific.Library.QueueLock);
82 while( pDevExt->Specific.Library.WorkerCount < AFS_WORKER_COUNT)
85 pCurrentWorker = (AFSWorkQueueContext *)AFSLibExAllocatePoolWithTag( NonPagedPool,
86 sizeof( AFSWorkQueueContext),
89 if( pCurrentWorker == NULL)
92 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
93 AFS_TRACE_LEVEL_ERROR,
94 "AFSInitializeWorkerPool Failed to allocate worker context\n");
96 ntStatus = STATUS_INSUFFICIENT_RESOURCES;
101 RtlZeroMemory( pCurrentWorker,
102 sizeof( AFSWorkQueueContext));
104 ntStatus = AFSInitWorkerThread( pCurrentWorker,
105 (PKSTART_ROUTINE)AFSWorkerThread);
107 if( !NT_SUCCESS( ntStatus))
110 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
111 AFS_TRACE_LEVEL_ERROR,
112 "AFSInitializeWorkerPool Failed to initialize worker thread Status %08lX\n", ntStatus);
114 ExFreePool( pCurrentWorker);
119 if( pDevExt->Specific.Library.PoolHead == NULL)
122 pDevExt->Specific.Library.PoolHead = pCurrentWorker;
127 pLastWorker->fLink = pCurrentWorker;
130 pLastWorker = pCurrentWorker;
132 pDevExt->Specific.Library.WorkerCount++;
136 // If there was a failure but there is at least one worker, then go with it.
139 if( !NT_SUCCESS( ntStatus) &&
140 pDevExt->Specific.Library.WorkerCount == 0)
143 try_return( ntStatus);
146 ntStatus = STATUS_SUCCESS;
149 // Now our IO Worker queue
152 pDevExt->Specific.Library.IOWorkerCount = 0;
154 KeInitializeEvent( &pDevExt->Specific.Library.IOWorkerQueueHasItems,
155 SynchronizationEvent,
159 // Initialize the queue resource
162 ExInitializeResourceLite( &pDevExt->Specific.Library.IOQueueLock);
164 while( pDevExt->Specific.Library.IOWorkerCount < AFS_IO_WORKER_COUNT)
167 pCurrentWorker = (AFSWorkQueueContext *)AFSLibExAllocatePoolWithTag( NonPagedPool,
168 sizeof( AFSWorkQueueContext),
171 if( pCurrentWorker == NULL)
174 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
175 AFS_TRACE_LEVEL_ERROR,
176 "AFSInitializeWorkerPool Failed to allocate IO worker context\n");
178 ntStatus = STATUS_INSUFFICIENT_RESOURCES;
183 RtlZeroMemory( pCurrentWorker,
184 sizeof( AFSWorkQueueContext));
186 ntStatus = AFSInitWorkerThread( pCurrentWorker,
187 (PKSTART_ROUTINE)AFSIOWorkerThread);
189 if( !NT_SUCCESS( ntStatus))
192 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
193 AFS_TRACE_LEVEL_ERROR,
194 "AFSInitializeWorkerPool Failed to initialize IO worker thread Status %08lX\n", ntStatus);
196 ExFreePool( pCurrentWorker);
201 if( pDevExt->Specific.Library.IOPoolHead == NULL)
204 pDevExt->Specific.Library.IOPoolHead = pCurrentWorker;
209 pLastWorker->fLink = pCurrentWorker;
212 pLastWorker = pCurrentWorker;
214 pDevExt->Specific.Library.IOWorkerCount++;
218 // If there was a failure but there is at least one worker, then go with it.
221 if( !NT_SUCCESS( ntStatus) &&
222 pDevExt->Specific.Library.IOWorkerCount == 0)
225 try_return( ntStatus);
230 if( !NT_SUCCESS( ntStatus))
234 // Failed to initialize the pool so tear it down
237 AFSRemoveWorkerPool();
245 // Function: AFSRemoveWorkerPool
249 // This function tears down the worker thread pool
253 // A status is returned for the function
257 AFSRemoveWorkerPool()
260 NTSTATUS ntStatus = STATUS_SUCCESS;
262 AFSWorkQueueContext *pCurrentWorker = NULL, *pNextWorker = NULL;
263 AFSDeviceExt *pDevExt = NULL;
265 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
268 // Loop through the workers shutting them down in two stages.
269 // First, clear AFS_WORKER_PROCESS_REQUESTS so that workers
270 // stop processing requests. Second, call AFSShutdownWorkerThread()
271 // to wake the workers and wait for them to exit.
274 pCurrentWorker = pDevExt->Specific.Library.PoolHead;
276 while( index < pDevExt->Specific.Library.WorkerCount)
279 ClearFlag( pCurrentWorker->State, AFS_WORKER_PROCESS_REQUESTS);
281 pCurrentWorker = pCurrentWorker->fLink;
283 if ( pCurrentWorker == NULL)
292 pCurrentWorker = pDevExt->Specific.Library.PoolHead;
296 while( index < pDevExt->Specific.Library.WorkerCount)
299 ntStatus = AFSShutdownWorkerThread( pCurrentWorker);
301 pNextWorker = pCurrentWorker->fLink;
303 ExFreePool( pCurrentWorker);
305 pCurrentWorker = pNextWorker;
307 if( pCurrentWorker == NULL)
316 pDevExt->Specific.Library.PoolHead = NULL;
318 ExDeleteResourceLite( &pDevExt->Specific.Library.QueueLock);
321 // Loop through the IO workers shutting them down in two stages.
322 // First, clear AFS_WORKER_PROCESS_REQUESTS so that workers
323 // stop processing requests. Second, call AFSShutdownWorkerThread()
324 // to wake the workers and wait for them to exit.
327 pCurrentWorker = pDevExt->Specific.Library.IOPoolHead;
331 while( index < pDevExt->Specific.Library.IOWorkerCount)
334 ClearFlag( pCurrentWorker->State, AFS_WORKER_PROCESS_REQUESTS);
336 pCurrentWorker = pCurrentWorker->fLink;
338 if ( pCurrentWorker == NULL)
347 pCurrentWorker = pDevExt->Specific.Library.IOPoolHead;
351 while( index < pDevExt->Specific.Library.IOWorkerCount)
354 ntStatus = AFSShutdownIOWorkerThread( pCurrentWorker);
356 pNextWorker = pCurrentWorker->fLink;
358 ExFreePool( pCurrentWorker);
360 pCurrentWorker = pNextWorker;
362 if( pCurrentWorker == NULL)
371 pDevExt->Specific.Library.IOPoolHead = NULL;
373 ExDeleteResourceLite( &pDevExt->Specific.Library.IOQueueLock);
379 AFSInitVolumeWorker( IN AFSVolumeCB *VolumeCB)
382 NTSTATUS ntStatus = STATUS_SUCCESS;
383 AFSWorkQueueContext *pWorker = &VolumeCB->VolumeWorkerContext;
385 AFSDeviceExt *pControlDeviceExt = (AFSDeviceExt *)AFSControlDeviceObject->DeviceExtension;
386 PKSTART_ROUTINE pStartRoutine = NULL;
392 if( VolumeCB == AFSGlobalRoot)
395 pStartRoutine = AFSPrimaryVolumeWorkerThread;
400 pStartRoutine = AFSVolumeWorkerThread;
404 // Initialize the worker thread
407 KeInitializeEvent( &pWorker->WorkerThreadReady,
412 // Set the worker to process requests
415 pWorker->State = AFS_WORKER_PROCESS_REQUESTS;
421 ntStatus = PsCreateSystemThread( &hThread,
429 if( NT_SUCCESS( ntStatus))
432 ObReferenceObjectByHandle( hThread,
433 GENERIC_READ | GENERIC_WRITE,
436 (PVOID *)&pWorker->WorkerThreadObject,
439 ntStatus = KeWaitForSingleObject( &pWorker->WorkerThreadReady,
445 lCount = InterlockedIncrement( &pControlDeviceExt->Specific.Control.VolumeWorkerThreadCount);
450 KeClearEvent( &pControlDeviceExt->Specific.Control.VolumeWorkerCloseEvent);
461 // Function: AFSInitWorkerThread
465 // This function initializes a worker thread in the pool
469 // A status is returned for the function
473 AFSInitWorkerThread( IN AFSWorkQueueContext *PoolContext,
474 IN PKSTART_ROUTINE WorkerRoutine)
477 NTSTATUS ntStatus = STATUS_SUCCESS;
481 // INitialize the worker signal thread
484 KeInitializeEvent( &PoolContext->WorkerThreadReady,
489 // Set the worker to process requests
492 PoolContext->State = AFS_WORKER_PROCESS_REQUESTS;
498 ntStatus = PsCreateSystemThread( &Handle,
504 (void *)PoolContext);
506 if( NT_SUCCESS( ntStatus))
509 ObReferenceObjectByHandle( Handle,
510 GENERIC_READ | GENERIC_WRITE,
513 (PVOID *)&PoolContext->WorkerThreadObject,
516 ntStatus = KeWaitForSingleObject( &PoolContext->WorkerThreadReady,
529 AFSShutdownVolumeWorker( IN AFSVolumeCB *VolumeCB)
532 NTSTATUS ntStatus = STATUS_SUCCESS;
533 AFSWorkQueueContext *pWorker = &VolumeCB->VolumeWorkerContext;
535 if( pWorker->WorkerThreadObject != NULL &&
536 BooleanFlagOn( pWorker->State, AFS_WORKER_INITIALIZED))
540 // Clear the 'keep processing' flag
543 ClearFlag( pWorker->State, AFS_WORKER_PROCESS_REQUESTS);
545 ntStatus = KeWaitForSingleObject( pWorker->WorkerThreadObject,
551 ObDereferenceObject( pWorker->WorkerThreadObject);
553 pWorker->WorkerThreadObject = NULL;
560 // Function: AFSShutdownWorkerThread
564 // This function shutsdown a worker thread in the pool
568 // A status is returned for the function
572 AFSShutdownWorkerThread( IN AFSWorkQueueContext *PoolContext)
575 NTSTATUS ntStatus = STATUS_SUCCESS;
576 AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
578 if( PoolContext->WorkerThreadObject != NULL &&
579 BooleanFlagOn( PoolContext->State, AFS_WORKER_INITIALIZED))
583 // Wake up the thread if it is a sleep
586 KeSetEvent( &pDeviceExt->Specific.Library.WorkerQueueHasItems,
590 ntStatus = KeWaitForSingleObject( PoolContext->WorkerThreadObject,
596 ObDereferenceObject( PoolContext->WorkerThreadObject);
598 PoolContext->WorkerThreadObject = NULL;
605 // Function: AFSShutdownIOWorkerThread
609 // This function shutsdown an IO worker thread in the pool
613 // A status is returned for the function
617 AFSShutdownIOWorkerThread( IN AFSWorkQueueContext *PoolContext)
620 NTSTATUS ntStatus = STATUS_SUCCESS;
621 AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
623 if( PoolContext->WorkerThreadObject != NULL &&
624 BooleanFlagOn( PoolContext->State, AFS_WORKER_INITIALIZED))
628 // Wake up the thread if it is a sleep
631 KeSetEvent( &pDeviceExt->Specific.Library.IOWorkerQueueHasItems,
635 ntStatus = KeWaitForSingleObject( PoolContext->WorkerThreadObject,
641 ObDereferenceObject( PoolContext->WorkerThreadObject);
643 PoolContext->WorkerThreadObject = NULL;
650 // Function: AFSWorkerThread
654 // This is the worker thread entry point.
658 // A status is returned for the function
662 AFSWorkerThread( IN PVOID Context)
665 NTSTATUS ntStatus = STATUS_SUCCESS;
666 AFSWorkQueueContext *pPoolContext = (AFSWorkQueueContext *)Context;
667 AFSWorkItem *pWorkItem;
668 BOOLEAN freeWorkItem = TRUE;
669 AFSDeviceExt *pLibraryDevExt = NULL;
672 pLibraryDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
675 // Indicate that we are initialized and ready
678 KeSetEvent( &pPoolContext->WorkerThreadReady,
683 // Indicate we are initialized
686 SetFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
688 ntStatus = KeWaitForSingleObject( &pLibraryDevExt->Specific.Library.WorkerQueueHasItems,
694 while( BooleanFlagOn( pPoolContext->State, AFS_WORKER_PROCESS_REQUESTS))
697 if( !NT_SUCCESS( ntStatus))
700 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
701 AFS_TRACE_LEVEL_ERROR,
702 "AFSWorkerThread Wait for queue items failed Status %08lX\n", ntStatus);
704 ntStatus = STATUS_SUCCESS;
709 pWorkItem = AFSRemoveWorkItem();
711 if( pWorkItem == NULL)
714 ntStatus = KeWaitForSingleObject( &pLibraryDevExt->Specific.Library.WorkerQueueHasItems,
726 // Switch on the type of work item to process
729 switch( pWorkItem->RequestType)
732 case AFS_WORK_FLUSH_FCB:
735 ntStatus = AFSFlushExtents( pWorkItem->Specific.Fcb.Fcb,
736 &pWorkItem->AuthGroup);
738 if( !NT_SUCCESS( ntStatus))
741 AFSReleaseExtentsWithFlush( pWorkItem->Specific.Fcb.Fcb,
742 &pWorkItem->AuthGroup);
745 ASSERT( pWorkItem->Specific.Fcb.Fcb->OpenReferenceCount != 0);
747 lCount = InterlockedDecrement( &pWorkItem->Specific.Fcb.Fcb->OpenReferenceCount);
752 case AFS_WORK_ASYNCH_READ:
755 ASSERT( pWorkItem->Specific.AsynchIo.CallingProcess != NULL);
757 (VOID) AFSCommonRead( pWorkItem->Specific.AsynchIo.Device,
758 pWorkItem->Specific.AsynchIo.Irp,
759 pWorkItem->Specific.AsynchIo.CallingProcess);
764 case AFS_WORK_ASYNCH_WRITE:
767 ASSERT( pWorkItem->Specific.AsynchIo.CallingProcess != NULL);
769 (VOID) AFSCommonWrite( pWorkItem->Specific.AsynchIo.Device,
770 pWorkItem->Specific.AsynchIo.Irp,
771 pWorkItem->Specific.AsynchIo.CallingProcess);
775 case AFS_WORK_ENUMERATE_GLOBAL_ROOT:
778 AFSEnumerateGlobalRoot( NULL);
783 case AFS_WORK_INVALIDATE_OBJECT:
786 AFSPerformObjectInvalidate( pWorkItem->Specific.Invalidate.ObjectInfo,
787 pWorkItem->Specific.Invalidate.InvalidateReason);
794 case AFS_WORK_START_IOS:
804 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
805 AFS_TRACE_LEVEL_ERROR,
806 "AFSWorkerThread Unknown request type %d\n", pWorkItem->RequestType);
814 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
817 ntStatus = STATUS_SUCCESS;
820 } // worker thread loop
822 ClearFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
824 // Wake up another worker so they too can exit
826 KeSetEvent( &pLibraryDevExt->Specific.Library.WorkerQueueHasItems,
830 PsTerminateSystemThread( 0);
836 AFSIOWorkerThread( IN PVOID Context)
839 NTSTATUS ntStatus = STATUS_SUCCESS;
840 AFSWorkQueueContext *pPoolContext = (AFSWorkQueueContext *)Context;
841 AFSWorkItem *pWorkItem;
842 BOOLEAN freeWorkItem = TRUE;
843 AFSDeviceExt *pLibraryDevExt = NULL, *pRdrDevExt = NULL;
845 pLibraryDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
848 // Indicate that we are initialized and ready
851 KeSetEvent( &pPoolContext->WorkerThreadReady,
857 // Indicate we are initialized
860 SetFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
862 ntStatus = KeWaitForSingleObject( &pLibraryDevExt->Specific.Library.IOWorkerQueueHasItems,
868 while( BooleanFlagOn( pPoolContext->State, AFS_WORKER_PROCESS_REQUESTS))
871 if( !NT_SUCCESS( ntStatus))
874 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
875 AFS_TRACE_LEVEL_ERROR,
876 "AFSIOWorkerThread Wait for queue items failed Status %08lX\n", ntStatus);
878 ntStatus = STATUS_SUCCESS;
883 pWorkItem = AFSRemoveIOWorkItem();
885 if( pWorkItem == NULL)
888 ntStatus = KeWaitForSingleObject( &pLibraryDevExt->Specific.Library.IOWorkerQueueHasItems,
900 // Switch on the type of work item to process
903 switch( pWorkItem->RequestType)
906 case AFS_WORK_START_IOS:
909 pRdrDevExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
912 // The final status is in the gather io
915 ntStatus = AFSStartIos( pWorkItem->Specific.CacheAccess.CacheFileObject,
916 pWorkItem->Specific.CacheAccess.FunctionCode,
917 pWorkItem->Specific.CacheAccess.RequestFlags,
918 pWorkItem->Specific.CacheAccess.IoRuns,
919 pWorkItem->Specific.CacheAccess.RunCount,
920 pWorkItem->Specific.CacheAccess.GatherIo);
923 // Regardless of the status we we do the complete - there may
925 // Decrement the count - setting the event if we were told
926 // to. This may trigger completion.
929 AFSCompleteIo( pWorkItem->Specific.CacheAccess.GatherIo, ntStatus );
938 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
939 AFS_TRACE_LEVEL_ERROR,
940 "AFSWorkerThread Unknown request type %d\n", pWorkItem->RequestType);
948 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
951 ntStatus = STATUS_SUCCESS;
954 } // worker thread loop
956 ClearFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
958 // Wake up another IOWorker so they too can exit
960 KeSetEvent( &pLibraryDevExt->Specific.Library.IOWorkerQueueHasItems,
964 PsTerminateSystemThread( 0);
970 AFSPrimaryVolumeWorkerThread( IN PVOID Context)
973 NTSTATUS ntStatus = STATUS_SUCCESS;
974 AFSWorkQueueContext *pPoolContext = (AFSWorkQueueContext *)&AFSGlobalRoot->VolumeWorkerContext;
975 AFSDeviceExt *pControlDeviceExt = NULL;
976 AFSDeviceExt *pRDRDeviceExt = NULL;
977 LARGE_INTEGER DueTime;
980 BOOLEAN bFoundOpenEntry = FALSE;
981 AFSObjectInfoCB *pCurrentObject = NULL, *pNextObject = NULL, *pCurrentChildObject = NULL;
982 AFSDirectoryCB *pCurrentDirEntry = NULL, *pNextDirEntry = NULL;
983 BOOLEAN bReleaseVolumeLock = FALSE;
984 AFSVolumeCB *pVolumeCB = NULL, *pNextVolume = NULL;
987 LARGE_INTEGER liCurrentTime;
988 BOOLEAN bVolumeObject = FALSE;
991 pControlDeviceExt = (AFSDeviceExt *)AFSControlDeviceObject->DeviceExtension;
993 pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
995 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
996 AFS_TRACE_LEVEL_VERBOSE,
997 "AFSPrimaryVolumeWorkerThread Initialized\n");
1000 // Initialize the timer for the worker thread
1003 DueTime.QuadPart = -(5000);
1007 KeInitializeTimerEx( &Timer,
1008 SynchronizationTimer);
1010 KeSetTimerEx( &Timer,
1016 // Indicate that we are initialized and ready
1019 KeSetEvent( &pPoolContext->WorkerThreadReady,
1024 // Indicate we are initialized
1027 SetFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
1029 while( BooleanFlagOn( pPoolContext->State, AFS_WORKER_PROCESS_REQUESTS))
1032 KeWaitForSingleObject( &Timer,
1039 // This is the primary volume worker so it will traverse the volume list
1040 // looking for cleanup or volumes requiring private workers
1043 AFSAcquireShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock,
1046 pVolumeCB = pRDRDeviceExt->Specific.RDR.VolumeListHead;
1048 while( pVolumeCB != NULL)
1051 if( pVolumeCB == AFSGlobalRoot ||
1052 !AFSAcquireExcl( pVolumeCB->VolumeLock,
1056 pVolumeCB = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1061 if( pVolumeCB->ObjectInfoListHead == NULL)
1064 AFSReleaseResource( pVolumeCB->VolumeLock);
1066 AFSReleaseResource( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1068 AFSAcquireExcl( pRDRDeviceExt->Specific.RDR.VolumeTree.TreeLock,
1071 AFSAcquireExcl( &pRDRDeviceExt->Specific.RDR.VolumeListLock,
1074 if( !AFSAcquireExcl( pVolumeCB->VolumeLock,
1078 AFSConvertToShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1080 AFSReleaseResource( pRDRDeviceExt->Specific.RDR.VolumeTree.TreeLock);
1082 pVolumeCB = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1087 KeQueryTickCount( &liCurrentTime);
1089 pNextVolume = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1091 if( pVolumeCB->ObjectInfoListHead == NULL &&
1092 pVolumeCB->DirectoryCB->OpenReferenceCount == 0 &&
1093 pVolumeCB->VolumeReferenceCount == 1 &&
1094 ( pVolumeCB->RootFcb == NULL ||
1095 pVolumeCB->RootFcb->OpenReferenceCount == 0) &&
1096 pVolumeCB->ObjectInformation.ObjectReferenceCount == 0)
1099 if( pVolumeCB->RootFcb != NULL)
1102 AFSRemoveRootFcb( pVolumeCB->RootFcb);
1105 AFSRemoveVolume( pVolumeCB);
1110 AFSReleaseResource( pVolumeCB->VolumeLock);
1113 AFSConvertToShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1115 AFSReleaseResource( pRDRDeviceExt->Specific.RDR.VolumeTree.TreeLock);
1117 pVolumeCB = pNextVolume;
1123 // Don't need this lock anymore now that we have a volume cb to work with
1126 AFSReleaseResource( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1129 // For now we only need the volume lock shared
1132 AFSConvertToShared( pVolumeCB->VolumeLock);
1134 if( AFSAcquireShared( pVolumeCB->ObjectInfoTree.TreeLock,
1138 pCurrentObject = pVolumeCB->ObjectInfoListHead;
1142 bReleaseVolumeLock = TRUE;
1144 while( pCurrentObject != NULL)
1147 if( pCurrentObject != &pVolumeCB->ObjectInformation)
1150 pNextObject = (AFSObjectInfoCB *)pCurrentObject->ListEntry.fLink;
1152 if( pNextObject == NULL &&
1153 pVolumeCB != AFSGlobalRoot) // Don't free up the root of the global
1156 pNextObject = &pVolumeCB->ObjectInformation;
1159 bVolumeObject = FALSE;
1166 bVolumeObject = TRUE;
1169 if( pCurrentObject->FileType == AFS_FILE_TYPE_DIRECTORY &&
1170 !BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN)) // If we are in shutdown mode skip directories
1174 // If this object is deleted then remove it from the parent, if we can
1177 if( BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DELETED) &&
1178 pCurrentObject->ObjectReferenceCount == 0 &&
1179 ( pCurrentObject->Fcb == NULL ||
1180 pCurrentObject->Fcb->OpenReferenceCount == 0) &&
1181 pCurrentObject->Specific.Directory.DirectoryNodeListHead == NULL &&
1182 pCurrentObject->Specific.Directory.ChildOpenReferenceCount == 0)
1185 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1188 // Dropping the TreeLock permits the
1189 // pCurrentObject->ObjectReferenceCount to change
1192 if( AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1196 if ( pCurrentObject->ObjectReferenceCount == 0)
1199 if( pCurrentObject->Fcb != NULL)
1202 AFSRemoveFcb( &pCurrentObject->Fcb);
1205 if( pCurrentObject->Specific.Directory.PIOCtlDirectoryCB != NULL)
1208 if( pCurrentObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb != NULL)
1211 AFSRemoveFcb( &pCurrentObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb);
1214 AFSDeleteObjectInfo( pCurrentObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation);
1216 ExDeleteResourceLite( &pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged->Lock);
1218 AFSExFreePool( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged);
1220 AFSExFreePool( pCurrentObject->Specific.Directory.PIOCtlDirectoryCB);
1223 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1224 AFS_TRACE_LEVEL_VERBOSE,
1225 "AFSPrimaryVolumeWorkerThread Deleting deleted object %08lX\n",
1228 AFSDeleteObjectInfo( pCurrentObject);
1231 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1233 pCurrentObject = pNextObject;
1240 bReleaseVolumeLock = FALSE;
1246 if( pCurrentObject->Specific.Directory.ChildOpenReferenceCount > 0 ||
1247 ( pCurrentObject->Fcb != NULL &&
1248 pCurrentObject->Fcb->OpenReferenceCount > 0) ||
1249 pCurrentObject->Specific.Directory.DirectoryNodeListHead == NULL)
1252 pCurrentObject = pNextObject;
1257 if( !AFSAcquireShared( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
1261 pCurrentObject = pNextObject;
1266 KeQueryTickCount( &liCurrentTime);
1268 pCurrentDirEntry = pCurrentObject->Specific.Directory.DirectoryNodeListHead;
1270 while( pCurrentDirEntry != NULL)
1273 if( pCurrentDirEntry->OpenReferenceCount > 0 ||
1274 ( pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1275 pCurrentDirEntry->ObjectInformation->Fcb->OpenReferenceCount > 0) ||
1276 liCurrentTime.QuadPart <= pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart ||
1277 liCurrentTime.QuadPart - pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart <
1278 pControlDeviceExt->Specific.Control.ObjectLifeTimeCount.QuadPart ||
1279 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY &&
1280 ( pCurrentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeListHead != NULL ||
1281 pCurrentDirEntry->ObjectInformation->Specific.Directory.ChildOpenReferenceCount > 0)) ||
1282 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_FILE &&
1283 pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1284 pCurrentDirEntry->ObjectInformation->Fcb->Specific.File.ExtentsDirtyCount > 0))
1290 pCurrentDirEntry = (AFSDirectoryCB *)pCurrentDirEntry->ListEntry.fLink;
1293 if( pCurrentDirEntry != NULL)
1296 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1298 pCurrentObject = pNextObject;
1303 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1305 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1308 // Now acquire the locks excl
1311 if( AFSAcquireExcl( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
1315 if( AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1319 if( pCurrentObject->Specific.Directory.ChildOpenReferenceCount > 0)
1322 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1324 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1326 pCurrentObject = pNextObject;
1331 KeQueryTickCount( &liCurrentTime);
1333 pCurrentDirEntry = pCurrentObject->Specific.Directory.DirectoryNodeListHead;
1335 while( pCurrentDirEntry != NULL)
1338 if( pCurrentDirEntry->OpenReferenceCount > 0 ||
1339 ( pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1340 pCurrentDirEntry->ObjectInformation->Fcb->OpenReferenceCount > 0) ||
1341 liCurrentTime.QuadPart <= pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart ||
1342 liCurrentTime.QuadPart - pCurrentDirEntry->ObjectInformation->LastAccessCount.QuadPart <
1343 pControlDeviceExt->Specific.Control.ObjectLifeTimeCount.QuadPart ||
1344 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY &&
1345 ( pCurrentDirEntry->ObjectInformation->Specific.Directory.DirectoryNodeListHead != NULL ||
1346 pCurrentDirEntry->ObjectInformation->Specific.Directory.ChildOpenReferenceCount > 0)) ||
1347 ( pCurrentDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_FILE &&
1348 pCurrentDirEntry->ObjectInformation->Fcb != NULL &&
1349 pCurrentDirEntry->ObjectInformation->Fcb->Specific.File.ExtentsDirtyCount > 0))
1355 pCurrentDirEntry = (AFSDirectoryCB *)pCurrentDirEntry->ListEntry.fLink;
1358 if( pCurrentDirEntry != NULL)
1361 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1363 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1365 pCurrentObject = pNextObject;
1370 pCurrentDirEntry = pCurrentObject->Specific.Directory.DirectoryNodeListHead;
1372 while( pCurrentDirEntry != NULL)
1375 pNextDirEntry = (AFSDirectoryCB *)pCurrentDirEntry->ListEntry.fLink;
1377 pCurrentChildObject = pCurrentDirEntry->ObjectInformation;
1381 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1382 AFS_TRACE_LEVEL_VERBOSE,
1383 "AFSPrimaryVolumeWorkerThread Deleting DE %wZ Object %08lX\n",
1384 &pCurrentDirEntry->NameInformation.FileName,
1385 pCurrentChildObject);
1387 AFSDeleteDirEntry( pCurrentObject,
1390 if( pCurrentChildObject->ObjectReferenceCount == 0)
1393 if( pCurrentChildObject->Fcb != NULL)
1396 pFcb = (AFSFcb *) InterlockedCompareExchangePointer( (PVOID *)&pCurrentChildObject->Fcb, NULL, (PVOID)pCurrentChildObject->Fcb);
1398 lFileType = pCurrentChildObject->FileType;
1401 if( pCurrentChildObject->FileType == AFS_FILE_TYPE_DIRECTORY &&
1402 pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB != NULL)
1405 if( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb != NULL)
1408 AFSRemoveFcb( &pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation->Fcb);
1411 AFSDeleteObjectInfo( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->ObjectInformation);
1413 ExDeleteResourceLite( &pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged->Lock);
1415 AFSExFreePool( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB->NonPaged);
1417 AFSExFreePool( pCurrentChildObject->Specific.Directory.PIOCtlDirectoryCB);
1420 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1421 AFS_TRACE_LEVEL_VERBOSE,
1422 "AFSPrimaryVolumeWorkerThread Deleting object %08lX\n",
1423 pCurrentChildObject);
1425 AFSDeleteObjectInfo( pCurrentChildObject);
1428 pCurrentDirEntry = pNextDirEntry;
1433 if( lFileType == AFS_FILE_TYPE_FILE)
1436 // We must not hold pVolumeCB->ObjectInfoTree.TreeLock exclusive
1437 // across an AFSCleanupFcb call since it can deadlock with an
1438 // invalidation call from the service.
1441 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1444 // Dropping the TreeLock permits the
1445 // pCurrentObject->ObjectReferenceCount to change
1448 AFSCleanupFcb( pFcb,
1451 AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1455 AFSRemoveFcb( &pFcb);
1459 pCurrentObject->Specific.Directory.DirectoryNodeListHead = NULL;
1461 pCurrentObject->Specific.Directory.DirectoryNodeListTail = NULL;
1463 pCurrentObject->Specific.Directory.ShortNameTree = NULL;
1465 pCurrentObject->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead = NULL;
1467 pCurrentObject->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead = NULL;
1469 pCurrentObject->Specific.Directory.DirectoryNodeCount = 0;
1471 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
1472 AFS_TRACE_LEVEL_VERBOSE,
1473 "AFSPrimaryVolumeWorkerThread Reset count to 0 on parent FID %08lX-%08lX-%08lX-%08lX\n",
1474 pCurrentObject->FileId.Cell,
1475 pCurrentObject->FileId.Volume,
1476 pCurrentObject->FileId.Vnode,
1477 pCurrentObject->FileId.Unique);
1480 // Clear our enumerated flag on this object so we retrieve info again on next access
1483 ClearFlag( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED);
1485 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1487 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1492 AFSReleaseResource( pCurrentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
1494 bReleaseVolumeLock = FALSE;
1503 // Try to grab the volume lock again ... no problem if we don't
1506 if( !AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1510 bReleaseVolumeLock = FALSE;
1516 if( pCurrentObject != &pVolumeCB->ObjectInformation)
1519 pCurrentObject = (AFSObjectInfoCB *)pCurrentObject->ListEntry.fLink;
1521 if( pCurrentObject == NULL &&
1522 pVolumeCB != AFSGlobalRoot)
1525 pCurrentObject = &pVolumeCB->ObjectInformation;
1531 pCurrentObject = NULL;
1536 else if( pCurrentObject->FileType == AFS_FILE_TYPE_FILE)
1539 if( BooleanFlagOn( pCurrentObject->Flags, AFS_OBJECT_FLAGS_DELETED) &&
1540 pCurrentObject->ObjectReferenceCount == 0 &&
1541 ( pCurrentObject->Fcb == NULL ||
1542 pCurrentObject->Fcb->OpenReferenceCount == 0))
1545 pFcb = (AFSFcb *) InterlockedCompareExchangePointer( (PVOID *)&pCurrentObject->Fcb, NULL, (PVOID)pCurrentObject->Fcb);
1550 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1553 // Dropping the TreeLock permits the
1554 // pCurrentObject->ObjectReferenceCount to change
1557 AFSCleanupFcb( pFcb,
1560 AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1563 AFSRemoveFcb( &pFcb);
1566 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1568 if( AFSAcquireExcl( pVolumeCB->ObjectInfoTree.TreeLock,
1572 AFSDeleteObjectInfo( pCurrentObject);
1574 AFSConvertToShared( pVolumeCB->ObjectInfoTree.TreeLock);
1576 pCurrentObject = pNextObject;
1583 bReleaseVolumeLock = FALSE;
1588 else if( pCurrentObject->Fcb != NULL)
1591 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1594 // Dropping the TreeLock permits the
1595 // pCurrentObject->ObjectReferenceCount to change
1598 AFSCleanupFcb( pCurrentObject->Fcb,
1601 AFSAcquireShared( pVolumeCB->ObjectInfoTree.TreeLock,
1606 pCurrentObject = pNextObject;
1609 if( bReleaseVolumeLock)
1612 AFSReleaseResource( pVolumeCB->ObjectInfoTree.TreeLock);
1620 AFSReleaseResource( pVolumeCB->VolumeLock);
1622 AFSAcquireShared( &pRDRDeviceExt->Specific.RDR.VolumeListLock,
1625 pVolumeCB = (AFSVolumeCB *)pVolumeCB->ListEntry.fLink;
1628 AFSReleaseResource( &pRDRDeviceExt->Specific.RDR.VolumeListLock);
1630 } // worker thread loop
1632 KeCancelTimer( &Timer);
1634 AFSDbgLogMsg( AFS_SUBSYSTEM_CLEANUP_PROCESSING,
1635 AFS_TRACE_LEVEL_VERBOSE,
1636 "AFSPrimaryVolumeWorkerThread Exiting\n");
1638 lCount = InterlockedDecrement( &pControlDeviceExt->Specific.Control.VolumeWorkerThreadCount);
1643 KeSetEvent( &pControlDeviceExt->Specific.Control.VolumeWorkerCloseEvent,
1648 PsTerminateSystemThread( 0);
1654 AFSVolumeWorkerThread( IN PVOID Context)
1657 NTSTATUS ntStatus = STATUS_SUCCESS;
1658 AFSVolumeCB *pVolumeCB = (AFSVolumeCB * )Context;
1659 AFSWorkQueueContext *pPoolContext = (AFSWorkQueueContext *)&pVolumeCB->VolumeWorkerContext;
1660 AFSDeviceExt *pControlDeviceExt = NULL;
1661 AFSDeviceExt *pRDRDeviceExt = NULL;
1662 BOOLEAN exitThread = FALSE;
1663 LARGE_INTEGER DueTime;
1668 pControlDeviceExt = (AFSDeviceExt *)AFSControlDeviceObject->DeviceExtension;
1670 pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1673 // Initialize the timer for the worker thread
1676 DueTime.QuadPart = -(5000);
1680 KeInitializeTimerEx( &Timer,
1681 SynchronizationTimer);
1683 KeSetTimerEx( &Timer,
1689 // Indicate that we are initialized and ready
1692 KeSetEvent( &pPoolContext->WorkerThreadReady,
1697 // Indicate we are initialized
1700 SetFlag( pPoolContext->State, AFS_WORKER_INITIALIZED);
1702 while( BooleanFlagOn( pPoolContext->State, AFS_WORKER_PROCESS_REQUESTS))
1705 ntStatus = KeWaitForSingleObject( &Timer,
1711 if( !NT_SUCCESS( ntStatus))
1714 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1715 AFS_TRACE_LEVEL_ERROR,
1716 "AFSVolumeWorkerThread Wait for queue items failed Status %08lX\n", ntStatus);
1722 // If we are in shutdown mode and the dirty flag is clear then get out now
1725 if( BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN))
1731 } // worker thread loop
1733 KeCancelTimer( &Timer);
1735 lCount = InterlockedDecrement( &pControlDeviceExt->Specific.Control.VolumeWorkerThreadCount);
1740 KeSetEvent( &pControlDeviceExt->Specific.Control.VolumeWorkerCloseEvent,
1745 PsTerminateSystemThread( 0);
1751 AFSInsertWorkitem( IN AFSWorkItem *WorkItem)
1754 NTSTATUS ntStatus = STATUS_SUCCESS;
1755 AFSDeviceExt *pDevExt = NULL;
1758 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1760 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1761 AFS_TRACE_LEVEL_VERBOSE,
1762 "AFSInsertWorkitem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1763 &pDevExt->Specific.Library.QueueLock,
1764 PsGetCurrentThread());
1766 AFSAcquireExcl( &pDevExt->Specific.Library.QueueLock,
1769 lCount = InterlockedIncrement( &pDevExt->Specific.Library.QueueItemCount);
1771 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1772 AFS_TRACE_LEVEL_VERBOSE,
1773 "AFSInsertWorkitem Inserting work item %08lX Count %08lX\n",
1777 if( pDevExt->Specific.Library.QueueTail != NULL) // queue already has nodes
1780 pDevExt->Specific.Library.QueueTail->next = WorkItem;
1785 pDevExt->Specific.Library.QueueHead = WorkItem;
1788 WorkItem->next = NULL;
1789 pDevExt->Specific.Library.QueueTail = WorkItem;
1791 // indicate that the queue has nodes
1792 KeSetEvent( &(pDevExt->Specific.Library.WorkerQueueHasItems),
1796 AFSReleaseResource( &pDevExt->Specific.Library.QueueLock);
1802 AFSInsertIOWorkitem( IN AFSWorkItem *WorkItem)
1805 NTSTATUS ntStatus = STATUS_SUCCESS;
1806 AFSDeviceExt *pDevExt = NULL;
1809 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1811 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1812 AFS_TRACE_LEVEL_VERBOSE,
1813 "AFSInsertIOWorkitem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1814 &pDevExt->Specific.Library.IOQueueLock,
1815 PsGetCurrentThread());
1817 AFSAcquireExcl( &pDevExt->Specific.Library.IOQueueLock,
1820 lCount = InterlockedIncrement( &pDevExt->Specific.Library.IOQueueItemCount);
1822 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1823 AFS_TRACE_LEVEL_VERBOSE,
1824 "AFSInsertWorkitem Inserting IO work item %08lX Count %08lX\n",
1828 if( pDevExt->Specific.Library.IOQueueTail != NULL) // queue already has nodes
1831 pDevExt->Specific.Library.IOQueueTail->next = WorkItem;
1836 pDevExt->Specific.Library.IOQueueHead = WorkItem;
1839 WorkItem->next = NULL;
1840 pDevExt->Specific.Library.IOQueueTail = WorkItem;
1842 // indicate that the queue has nodes
1843 KeSetEvent( &(pDevExt->Specific.Library.IOWorkerQueueHasItems),
1847 AFSReleaseResource( &pDevExt->Specific.Library.IOQueueLock);
1853 AFSInsertWorkitemAtHead( IN AFSWorkItem *WorkItem)
1856 NTSTATUS ntStatus = STATUS_SUCCESS;
1857 AFSDeviceExt *pDevExt = NULL;
1860 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1862 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1863 AFS_TRACE_LEVEL_VERBOSE,
1864 "AFSInsertWorkitemAtHead Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1865 &pDevExt->Specific.Library.QueueLock,
1866 PsGetCurrentThread());
1868 AFSAcquireExcl( &pDevExt->Specific.Library.QueueLock,
1871 WorkItem->next = pDevExt->Specific.Library.QueueHead;
1873 pDevExt->Specific.Library.QueueHead = WorkItem;
1875 lCount = InterlockedIncrement( &pDevExt->Specific.Library.QueueItemCount);
1877 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1878 AFS_TRACE_LEVEL_VERBOSE,
1879 "AFSInsertWorkitemAtHead Inserting work item %08lX Count %08lX\n",
1884 // indicate that the queue has nodes
1887 KeSetEvent( &(pDevExt->Specific.Library.WorkerQueueHasItems),
1891 AFSReleaseResource( &pDevExt->Specific.Library.QueueLock);
1900 NTSTATUS ntStatus = STATUS_SUCCESS;
1901 AFSWorkItem *pWorkItem = NULL;
1902 AFSDeviceExt *pDevExt = NULL;
1905 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1907 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1908 AFS_TRACE_LEVEL_VERBOSE,
1909 "AFSRemoveWorkItem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1910 &pDevExt->Specific.Library.QueueLock,
1911 PsGetCurrentThread());
1913 AFSAcquireExcl( &pDevExt->Specific.Library.QueueLock,
1916 if( pDevExt->Specific.Library.QueueHead != NULL) // queue has nodes
1919 pWorkItem = pDevExt->Specific.Library.QueueHead;
1921 lCount = InterlockedDecrement( &pDevExt->Specific.Library.QueueItemCount);
1923 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1924 AFS_TRACE_LEVEL_VERBOSE,
1925 "AFSRemoveWorkItem Removing work item %08lX Count %08lX Thread %08lX\n",
1928 PsGetCurrentThreadId());
1930 pDevExt->Specific.Library.QueueHead = pDevExt->Specific.Library.QueueHead->next;
1932 if( pDevExt->Specific.Library.QueueHead == NULL) // if queue just became empty
1935 pDevExt->Specific.Library.QueueTail = NULL;
1941 // Wake up another worker
1944 KeSetEvent( &(pDevExt->Specific.Library.WorkerQueueHasItems),
1950 AFSReleaseResource( &pDevExt->Specific.Library.QueueLock);
1956 AFSRemoveIOWorkItem()
1959 NTSTATUS ntStatus = STATUS_SUCCESS;
1960 AFSWorkItem *pWorkItem = NULL;
1961 AFSDeviceExt *pDevExt = NULL;
1964 pDevExt = (AFSDeviceExt *)AFSLibraryDeviceObject->DeviceExtension;
1966 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
1967 AFS_TRACE_LEVEL_VERBOSE,
1968 "AFSRemoveIOWorkItem Acquiring Control QueueLock lock %08lX EXCL %08lX\n",
1969 &pDevExt->Specific.Library.IOQueueLock,
1970 PsGetCurrentThread());
1972 AFSAcquireExcl( &pDevExt->Specific.Library.IOQueueLock,
1975 if( pDevExt->Specific.Library.IOQueueHead != NULL) // queue has nodes
1978 pWorkItem = pDevExt->Specific.Library.IOQueueHead;
1980 lCount = InterlockedDecrement( &pDevExt->Specific.Library.IOQueueItemCount);
1982 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
1983 AFS_TRACE_LEVEL_VERBOSE,
1984 "AFSRemoveWorkItem Removing work item %08lX Count %08lX Thread %08lX\n",
1987 PsGetCurrentThreadId());
1989 pDevExt->Specific.Library.IOQueueHead = pDevExt->Specific.Library.IOQueueHead->next;
1991 if( pDevExt->Specific.Library.IOQueueHead == NULL) // if queue just became empty
1994 pDevExt->Specific.Library.IOQueueTail = NULL;
2000 // Wake up another worker
2003 KeSetEvent( &(pDevExt->Specific.Library.IOWorkerQueueHasItems),
2009 AFSReleaseResource( &pDevExt->Specific.Library.IOQueueLock);
2015 AFSQueueWorkerRequest( IN AFSWorkItem *WorkItem)
2018 NTSTATUS ntStatus = STATUS_SUCCESS;
2019 AFSDeviceExt *pDevExt = NULL;
2020 BOOLEAN bWait = BooleanFlagOn( WorkItem->RequestFlags, AFS_SYNCHRONOUS_REQUEST);
2023 // Submit the work item to the worker
2026 ntStatus = AFSInsertWorkitem( WorkItem);
2032 // Sync request so block on the work item event
2035 ntStatus = KeWaitForSingleObject( &WorkItem->Event,
2046 AFSQueueIOWorkerRequest( IN AFSWorkItem *WorkItem)
2049 NTSTATUS ntStatus = STATUS_SUCCESS;
2050 AFSDeviceExt *pDevExt = NULL;
2051 BOOLEAN bWait = BooleanFlagOn( WorkItem->RequestFlags, AFS_SYNCHRONOUS_REQUEST);
2054 // Submit the work item to the worker
2057 ntStatus = AFSInsertIOWorkitem( WorkItem);
2063 // Sync request so block on the work item event
2066 ntStatus = KeWaitForSingleObject( &WorkItem->Event,
2077 AFSQueueWorkerRequestAtHead( IN AFSWorkItem *WorkItem)
2080 NTSTATUS ntStatus = STATUS_SUCCESS;
2081 AFSDeviceExt *pDevExt = NULL;
2082 BOOLEAN bWait = BooleanFlagOn( WorkItem->RequestFlags, AFS_SYNCHRONOUS_REQUEST);
2085 // Submit the work item to the worker
2088 ntStatus = AFSInsertWorkitemAtHead( WorkItem);
2094 // Sync request so block on the work item event
2097 ntStatus = KeWaitForSingleObject( &WorkItem->Event,
2108 AFSQueueFlushExtents( IN AFSFcb *Fcb,
2112 NTSTATUS ntStatus = STATUS_SUCCESS;
2113 AFSDeviceExt *pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
2114 AFSWorkItem *pWorkItem = NULL;
2120 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2121 AFS_TRACE_LEVEL_VERBOSE,
2122 "AFSQueueFlushExtents Queuing request for FID %08lX-%08lX-%08lX-%08lX\n",
2123 Fcb->ObjectInformation->FileId.Cell,
2124 Fcb->ObjectInformation->FileId.Volume,
2125 Fcb->ObjectInformation->FileId.Vnode,
2126 Fcb->ObjectInformation->FileId.Unique);
2129 // Increment our flush count here just to keep the number of items in the
2130 // queue down. We'll decrement it just below.
2133 lCount = InterlockedIncrement( &Fcb->Specific.File.QueuedFlushCount);
2138 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2139 AFS_TRACE_LEVEL_VERBOSE,
2140 "AFSQueueFlushExtents Max queued items for FID %08lX-%08lX-%08lX-%08lX\n",
2141 Fcb->ObjectInformation->FileId.Cell,
2142 Fcb->ObjectInformation->FileId.Volume,
2143 Fcb->ObjectInformation->FileId.Vnode,
2144 Fcb->ObjectInformation->FileId.Unique);
2146 try_return( ntStatus);
2149 if( BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN))
2152 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2153 AFS_TRACE_LEVEL_ERROR,
2154 "AFSQueueFlushExtents Failing request, in shutdown\n");
2156 try_return( ntStatus = STATUS_TOO_LATE);
2160 // Allocate our request structure and send it to the worker
2163 pWorkItem = (AFSWorkItem *)AFSLibExAllocatePoolWithTag( NonPagedPool,
2164 sizeof( AFSWorkItem),
2167 if( pWorkItem == NULL)
2170 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2171 AFS_TRACE_LEVEL_ERROR,
2172 "AFSQueueFlushExtents Failed to allocate work item\n");
2174 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2177 RtlZeroMemory( pWorkItem,
2178 sizeof( AFSWorkItem));
2180 pWorkItem->Size = sizeof( AFSWorkItem);
2182 pWorkItem->ProcessID = (ULONGLONG)PsGetCurrentProcessId();
2184 pWorkItem->RequestType = AFS_WORK_FLUSH_FCB;
2186 RtlCopyMemory( &pWorkItem->AuthGroup,
2190 pWorkItem->Specific.Fcb.Fcb = Fcb;
2192 lCount = InterlockedIncrement( &Fcb->OpenReferenceCount);
2194 AFSDbgLogMsg( AFS_SUBSYSTEM_FCB_REF_COUNTING,
2195 AFS_TRACE_LEVEL_VERBOSE,
2196 "AFSQueueFlushExtents Increment count on Fcb %08lX Cnt %d\n",
2200 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2201 AFS_TRACE_LEVEL_VERBOSE,
2202 "AFSQueueFlushExtents Workitem %08lX for FID %08lX-%08lX-%08lX-%08lX\n",
2204 Fcb->ObjectInformation->FileId.Cell,
2205 Fcb->ObjectInformation->FileId.Volume,
2206 Fcb->ObjectInformation->FileId.Vnode,
2207 Fcb->ObjectInformation->FileId.Unique);
2209 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2213 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2214 AFS_TRACE_LEVEL_VERBOSE,
2215 "AFSQueueFlushExtents Request complete Status %08lX FID %08lX-%08lX-%08lX-%08lX\n",
2216 Fcb->ObjectInformation->FileId.Cell,
2217 Fcb->ObjectInformation->FileId.Volume,
2218 Fcb->ObjectInformation->FileId.Vnode,
2219 Fcb->ObjectInformation->FileId.Unique,
2223 // Remove the count we added above
2226 lCount = InterlockedDecrement( &Fcb->Specific.File.QueuedFlushCount);
2231 KeSetEvent( &Fcb->NPFcb->Specific.File.QueuedFlushEvent,
2236 if( !NT_SUCCESS( ntStatus))
2239 if( pWorkItem != NULL)
2242 lCount = InterlockedDecrement( &Fcb->OpenReferenceCount);
2244 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2247 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2248 AFS_TRACE_LEVEL_ERROR,
2249 "AFSQueueFlushExtents Failed to queue request Status %08lX\n", ntStatus);
2252 __except( AFSExceptionFilter( GetExceptionCode(), GetExceptionInformation()) )
2257 "EXCEPTION - AFSQueueFlushExtents\n");
2264 AFSQueueAsyncRead( IN PDEVICE_OBJECT DeviceObject,
2266 IN HANDLE CallerProcess)
2269 NTSTATUS ntStatus = STATUS_SUCCESS;
2270 AFSWorkItem *pWorkItem = NULL;
2275 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2276 AFS_TRACE_LEVEL_VERBOSE,
2277 "AFSQueueAsyncRead Queuing request for Irp %08lX\n",
2280 pWorkItem = (AFSWorkItem *) AFSLibExAllocatePoolWithTag( NonPagedPool,
2281 sizeof(AFSWorkItem),
2283 if (NULL == pWorkItem)
2286 AFSDbgLogMsg( AFS_SUBSYSTEM_IO_PROCESSING,
2287 AFS_TRACE_LEVEL_ERROR,
2288 "AFSQueueAsyncRead Failed to allocate work item\n");
2290 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES );
2293 RtlZeroMemory( pWorkItem,
2294 sizeof(AFSWorkItem));
2296 pWorkItem->Size = sizeof( AFSWorkItem);
2298 pWorkItem->RequestType = AFS_WORK_ASYNCH_READ;
2300 pWorkItem->Specific.AsynchIo.Device = DeviceObject;
2302 pWorkItem->Specific.AsynchIo.Irp = Irp;
2304 pWorkItem->Specific.AsynchIo.CallingProcess = CallerProcess;
2306 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2307 AFS_TRACE_LEVEL_VERBOSE,
2308 "AFSQueueAsyncRead Workitem %08lX for Irp %08lX\n",
2312 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2316 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2317 AFS_TRACE_LEVEL_VERBOSE,
2318 "AFSQueueAsyncRead Request for Irp %08lX complete Status %08lX\n",
2322 if( !NT_SUCCESS( ntStatus))
2325 if( pWorkItem != NULL)
2328 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2331 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2332 AFS_TRACE_LEVEL_ERROR,
2333 "AFSQueueAsyncRead Failed to queue request Status %08lX\n", ntStatus);
2336 __except( AFSExceptionFilter( GetExceptionCode(), GetExceptionInformation()) )
2341 "EXCEPTION - AFSQueueAsyncRead\n");
2348 AFSQueueAsyncWrite( IN PDEVICE_OBJECT DeviceObject,
2350 IN HANDLE CallerProcess)
2353 NTSTATUS ntStatus = STATUS_SUCCESS;
2354 AFSWorkItem *pWorkItem = NULL;
2359 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2360 AFS_TRACE_LEVEL_VERBOSE,
2361 "AFSQueueAsyncWrite Queuing request for Irp %08lX\n",
2364 pWorkItem = (AFSWorkItem *) AFSLibExAllocatePoolWithTag( NonPagedPool,
2365 sizeof(AFSWorkItem),
2367 if (NULL == pWorkItem)
2370 AFSDbgLogMsg( AFS_SUBSYSTEM_IO_PROCESSING,
2371 AFS_TRACE_LEVEL_ERROR,
2372 "AFSQueueAsyncWrite Failed to allocate work item\n");
2374 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES );
2377 RtlZeroMemory( pWorkItem,
2378 sizeof(AFSWorkItem));
2380 pWorkItem->Size = sizeof( AFSWorkItem);
2382 pWorkItem->RequestType = AFS_WORK_ASYNCH_WRITE;
2384 pWorkItem->Specific.AsynchIo.Device = DeviceObject;
2386 pWorkItem->Specific.AsynchIo.Irp = Irp;
2388 pWorkItem->Specific.AsynchIo.CallingProcess = CallerProcess;
2390 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2391 AFS_TRACE_LEVEL_VERBOSE,
2392 "AFSQueueAsyncWrite Workitem %08lX for Irp %08lX\n",
2396 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2400 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2401 AFS_TRACE_LEVEL_VERBOSE,
2402 "AFSQueueAsyncWrite Request for Irp %08lX complete Status %08lX\n",
2406 if( !NT_SUCCESS( ntStatus))
2409 if( pWorkItem != NULL)
2412 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2415 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2416 AFS_TRACE_LEVEL_ERROR,
2417 "AFSQueueAsyncWrite Failed to queue request Status %08lX\n", ntStatus);
2420 __except( AFSExceptionFilter( GetExceptionCode(), GetExceptionInformation()) )
2425 "EXCEPTION - AFSQueueAsyncWrite\n");
2432 AFSQueueGlobalRootEnumeration()
2435 NTSTATUS ntStatus = STATUS_SUCCESS;
2436 AFSWorkItem *pWorkItem = NULL;
2441 pWorkItem = (AFSWorkItem *) AFSLibExAllocatePoolWithTag( NonPagedPool,
2442 sizeof(AFSWorkItem),
2444 if (NULL == pWorkItem)
2447 AFSDbgLogMsg( AFS_SUBSYSTEM_IO_PROCESSING,
2448 AFS_TRACE_LEVEL_ERROR,
2449 "AFSQueueGlobalRootEnumeration Failed to allocate work item\n");
2451 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES );
2454 RtlZeroMemory( pWorkItem,
2455 sizeof(AFSWorkItem));
2457 pWorkItem->Size = sizeof( AFSWorkItem);
2459 pWorkItem->RequestType = AFS_WORK_ENUMERATE_GLOBAL_ROOT;
2461 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2462 AFS_TRACE_LEVEL_VERBOSE,
2463 "AFSQueueGlobalRootEnumeration Workitem %08lX\n",
2466 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2470 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2471 AFS_TRACE_LEVEL_VERBOSE,
2472 "AFSQueueGlobalRootEnumeration Request complete Status %08lX\n",
2475 if( !NT_SUCCESS( ntStatus))
2478 if( pWorkItem != NULL)
2481 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2484 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2485 AFS_TRACE_LEVEL_ERROR,
2486 "AFSQueueGlobalRootEnumeration Failed to queue request Status %08lX\n",
2490 __except( AFSExceptionFilter( GetExceptionCode(), GetExceptionInformation()) )
2495 "EXCEPTION - AFSQueueGlobalRootEnumeration\n");
2502 AFSQueueStartIos( IN PFILE_OBJECT CacheFileObject,
2503 IN UCHAR FunctionCode,
2504 IN ULONG RequestFlags,
2505 IN AFSIoRun *IoRuns,
2507 IN AFSGatherIo *GatherIo)
2510 NTSTATUS ntStatus = STATUS_SUCCESS;
2511 AFSDeviceExt *pRDRDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
2512 AFSWorkItem *pWorkItem = NULL;
2517 if( BooleanFlagOn( pRDRDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN))
2520 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2521 AFS_TRACE_LEVEL_ERROR,
2522 "AFSQueueStartIos Failing request, in shutdown\n");
2524 try_return( ntStatus = STATUS_TOO_LATE);
2528 // Allocate our request structure and send it to the worker
2531 pWorkItem = (AFSWorkItem *)AFSLibExAllocatePoolWithTag( NonPagedPool,
2532 sizeof( AFSWorkItem),
2535 if( pWorkItem == NULL)
2538 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2539 AFS_TRACE_LEVEL_ERROR,
2540 "AFSQueueStartIos Failed to allocate work item\n");
2542 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2545 RtlZeroMemory( pWorkItem,
2546 sizeof( AFSWorkItem));
2548 KeInitializeEvent( &pWorkItem->Event,
2552 pWorkItem->Size = sizeof( AFSWorkItem);
2554 pWorkItem->ProcessID = (ULONGLONG)PsGetCurrentProcessId();
2556 pWorkItem->RequestType = AFS_WORK_START_IOS;
2558 pWorkItem->Specific.CacheAccess.CacheFileObject = CacheFileObject;
2560 pWorkItem->Specific.CacheAccess.FunctionCode = FunctionCode;
2562 pWorkItem->Specific.CacheAccess.RequestFlags = RequestFlags;
2564 pWorkItem->Specific.CacheAccess.IoRuns = IoRuns;
2566 pWorkItem->Specific.CacheAccess.RunCount = RunCount;
2568 pWorkItem->Specific.CacheAccess.GatherIo = GatherIo;
2570 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2571 AFS_TRACE_LEVEL_VERBOSE,
2572 "AFSQueueStartIos Queuing IO Workitem %08lX\n",
2575 ntStatus = AFSQueueIOWorkerRequest( pWorkItem);
2579 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2580 AFS_TRACE_LEVEL_VERBOSE,
2581 "AFSQueueStartIos Request complete Status %08lX\n",
2584 if( !NT_SUCCESS( ntStatus))
2587 if( pWorkItem != NULL)
2590 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2594 __except( AFSExceptionFilter( GetExceptionCode(), GetExceptionInformation()) )
2599 "EXCEPTION - AFSQueueStartIos\n");
2606 AFSQueueInvalidateObject( IN AFSObjectInfoCB *ObjectInfo,
2607 IN ULONG InvalidateReason)
2610 NTSTATUS ntStatus = STATUS_SUCCESS;
2611 AFSWorkItem *pWorkItem = NULL;
2616 pWorkItem = (AFSWorkItem *) AFSLibExAllocatePoolWithTag( NonPagedPool,
2617 sizeof(AFSWorkItem),
2619 if (NULL == pWorkItem)
2622 AFSDbgLogMsg( AFS_SUBSYSTEM_IO_PROCESSING,
2623 AFS_TRACE_LEVEL_ERROR,
2624 "AFSQueueInvalidateObject Failed to allocate work item\n");
2626 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES );
2629 RtlZeroMemory( pWorkItem,
2630 sizeof(AFSWorkItem));
2632 pWorkItem->Size = sizeof( AFSWorkItem);
2634 pWorkItem->RequestType = AFS_WORK_INVALIDATE_OBJECT;
2636 pWorkItem->Specific.Invalidate.ObjectInfo = ObjectInfo;
2638 pWorkItem->Specific.Invalidate.InvalidateReason = InvalidateReason;
2640 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2641 AFS_TRACE_LEVEL_VERBOSE,
2642 "AFSQueueInvalidateObject Workitem %08lX\n",
2645 ntStatus = AFSQueueWorkerRequest( pWorkItem);
2649 AFSDbgLogMsg( AFS_SUBSYSTEM_WORKER_PROCESSING,
2650 AFS_TRACE_LEVEL_VERBOSE,
2651 "AFSQueueInvalidateObject Request complete Status %08lX\n",
2654 if( !NT_SUCCESS( ntStatus))
2657 if( pWorkItem != NULL)
2659 ExFreePoolWithTag( pWorkItem, AFS_WORK_ITEM_TAG);
2662 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2663 AFS_TRACE_LEVEL_ERROR,
2664 "AFSQueueInvalidateObject Failed to queue request Status %08lX\n",
2668 __except( AFSExceptionFilter( GetExceptionCode(), GetExceptionInformation()) )
2673 "EXCEPTION - AFSQueueInvalidateObject\n");