os/kernelhwsrv/userlibandfileserver/fileserver/sfile/sf_debug.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200 (2012-06-15)
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
     1 // Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
     2 // All rights reserved.
     3 // This component and the accompanying materials are made available
     4 // under the terms of the License "Eclipse Public License v1.0"
     5 // which accompanies this distribution, and is available
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
     7 //
     8 // Initial Contributors:
     9 // Nokia Corporation - initial contribution.
    10 //
    11 // Contributors:
    12 //
    13 // Description:
    14 // f32\sfile\sf_debug.cpp
    15 // 
    16 //
    17 
    18 #include "sf_std.h"
    19 #include <f32dbg.h>
    20 #include "f32image.h"
    21 #include <F32plugin.h>
    22 #include "sf_file_cache.h"
    23 
    24 
    25 #if defined(_DEBUG) || defined(_DEBUG_RELEASE)
    26 
    27 //
    28 // ONLY INCLUDED IN DEBUG BUILDS
    29 //
    30 
    31 void PrintHeapSize(const TDesC& aMessage)
    32 //
    33 // Display the total memory available
    34 //
    35 	{
    36 
    37 	TInt biggest;
    38 	TInt heapSize = User::Allocator().Available(biggest);
    39 	RDebug::Print(_L("%S size=0x%x largest cell=0x%x"),&aMessage,heapSize,biggest);
    40 	}
    41 
    42 static void SetAllocFailure(const RMessage2* aMessage)
    43 //
    44 // Set alloc failure after allocCount allocations
    45 //
    46 	{
    47 
    48 	UserHeapAllocFailCount=aMessage->Int1();
    49 	KernHeapAllocFailCount=UserHeapAllocFailCount;
    50 	if (UserHeapAllocFailCount>=0)
    51 		{
    52 		__UHEAP_FAILNEXT(UserHeapAllocFailCount);
    53 		__KHEAP_FAILNEXT(KernHeapAllocFailCount);
    54 		}
    55 	else
    56 		{
    57 		__UHEAP_RESET;
    58 		__KHEAP_RESET;
    59 		}	
    60 	}
    61 
    62 TInt FsDebugFunction(CFsRequest* aRequest)
    63 //
    64 // SetAllocFailure - Set alloc failure after allocCount allocations
    65 // SetErrorCondition - Set simulated error failure
    66 // SetDebugRegister - Trigger tracing output
    67 // DebugNotify - Request notification of a file server event - .FSY specific
    68 //
    69 	{
    70 
    71 	TInt r=KErrNone;
    72 	const RMessage2* message=&(aRequest->Message());
    73 	switch (message->Int0())
    74 		{
    75 	case EFsSetAllocFailure: 
    76 		SetAllocFailure(message); 
    77 		break;
    78 	case EFsSetErrorCondition:
    79 		ErrorCondition=message->Int1();
    80 		ErrorCount=message->Int2();
    81 		break;
    82 	case EFsSetDebugRegister:
    83 		DebugReg=message->Int1();
    84 		break;
    85 	case EFsDebugNotify:
    86 		{
    87 		TUint notifyType=(aRequest->Message().Int2())&KDebugNotifyMask;
    88 		if (notifyType)
    89 			{
    90 			CDebugChangeInfo* info=new CDebugChangeInfo;
    91 			if(!info)
    92 				return(KErrNoMemory);
    93 			const RMessage2& m=aRequest->Message();
    94 			info->Initialise(notifyType,(TRequestStatus*)m.Ptr3(),m,aRequest->Session());
    95 			r=FsNotify::AddDebug(info);
    96 			if(r!=KErrNone)
    97 				delete(info);
    98 			else
    99 				aRequest->SetCompleted(EFalse);
   100 			}
   101 		else
   102 			r=KErrArgument;
   103 		break;
   104 		}
   105 	default:
   106 		break;
   107 		};
   108 	return(r);
   109 	}
   110 
   111 TBool SimulateError(const RMessage2* aMessage)
   112 //
   113 // Return an error message if ErrorCount<=0
   114 //
   115 	{
   116 	TInt function = aMessage->Function() & KIpcFunctionMask;
   117 	
   118 	if (ErrorCondition!=KErrNone && 
   119 		(
   120 		function!=EFsDebugFunction || aMessage->Int0()!=EFsSetErrorCondition) &&
   121 		function!=EFsNotifyChangeCancel &&
   122 		function!=EFsNotifyChangeCancelEx &&
   123 		function!=EFsNotifyDiskSpaceCancel &&
   124 		function!=EFsFormatSubClose && 
   125 		function!=EFsDirSubClose  && 
   126 		function!=EFsFileSubClose && 
   127 		function!=EFsRawSubClose &&
   128 		function!=EFsUnclamp &&
   129 
   130         //-- this operation must not fail. It can only fail if the client's thread has died.
   131         //-- in this case whole session will be cleaned up.
   132 		function!=EFsFileAdopt 
   133         )
   134 		{
   135 		if (ErrorCount<=0)
   136 			return(ETrue);
   137 		ErrorCount--;
   138 		}
   139 	return(EFalse);
   140 	}
   141 
   142 
   143 TPtrC GetFunctionName(TInt aFunction)
   144 //
   145 // Print number of alloc fails to complete a given function
   146 //
   147 	{
   148 
   149 	switch (aFunction)
   150 		{
   151 	case EFsDebugFunction: return _L("EFsDebugFunction");
   152 	case EFsAddFileSystem: return _L("EFsAddFileSystem");
   153 	case EFsRemoveFileSystem: return _L("EFsRemoveFileSystem");
   154 	case EFsMountFileSystem: return _L("EFsMountFileSystem");
   155 	case EFsNotifyChange: return _L("EFsNotifyChange");
   156 	case EFsNotifyChangeCancel: return _L("EFsNotifyChangeCancel");
   157 	case EFsDriveList: return _L("EFsDriveList");
   158 	case EFsDrive: return _L("EFsDrive");
   159 	case EFsVolume: return _L("EFsVolume");
   160 	case EFsSetVolume: return _L("EFsSetVolume");
   161 	case EFsSubst: return _L("EFsSubst");
   162 	case EFsSetSubst: return _L("EFsSetSubst");
   163 	case EFsRealName: return _L("EFsRealName");
   164 	case EFsDefaultPath: return _L("EFsDefaultPath");
   165 	case EFsSetDefaultPath: return _L("EFsSetDefaultPath");
   166 	case EFsSessionPath: return _L("EFsSessionPath");
   167 	case EFsSetSessionPath: return _L("EFsSetSessionPath");
   168 	case EFsMkDir: return _L("EFsMkDir");
   169 	case EFsRmDir: return _L("EFsRmDir");
   170 	case EFsParse: return _L("EFsParse");
   171 	case EFsDelete: return _L("EFsDelete");
   172 	case EFsRename: return _L("EFsRename");
   173 	case EFsReplace: return _L("EFsReplace");
   174 	case EFsEntry: return _L("EFsEntry");
   175 	case EFsSetEntry: return _L("EFsSetEntry");
   176 	case EFsGetDriveName: return _L("EFsGetDriveName");
   177 	case EFsSetDriveName: return _L("EFsSetDriveName");
   178 	case EFsFormatSubClose: return _L("EFsFormatSubClose");
   179 	case EFsDirSubClose: return _L("EFsDirSubClose");
   180 	case EFsFileSubClose: return _L("EFsFileSubClose");
   181 	case EFsRawSubClose: return _L("EFsRawSubClose");
   182 	case EFsFileOpen: return _L("EFsFileOpen");
   183 	case EFsFileCreate: return _L("EFsFileCreate");
   184 	case EFsFileReplace: return _L("EFsFileReplace");
   185 	case EFsFileTemp: return _L("EFsFileTemp");
   186 	case EFsFileRead: return _L("EFsFileRead");
   187 	case EFsFileWrite: return _L("EFsFileWrite");
   188 	case EFsFileLock: return _L("EFsFileLock");
   189 	case EFsFileUnLock: return _L("EFsFileUnLock");
   190 	case EFsFileSeek: return _L("EFsFileSeek");
   191 	case EFsFileFlush: return _L("EFsFileFlush");
   192 	case EFsFileSize: return _L("EFsFileSize");
   193 	case EFsFileSetSize: return _L("EFsFileSetSize");
   194 	case EFsFileAtt: return _L("EFsFileAtt");
   195 	case EFsFileSetAtt: return _L("EFsFileSetAtt");
   196 	case EFsFileModified: return _L("EFsFileModified");
   197 	case EFsFileSetModified: return _L("EFsFileSetModified");
   198 	case EFsFileSet: return _L("EFsFileSet");
   199 	case EFsFileChangeMode: return _L("EFsFileChangeMode");
   200 	case EFsFileRename: return _L("EFsFileRename");
   201 	case EFsDirOpen: return _L("EFsDirOpen");
   202 	case EFsDirReadOne: return _L("EFsDirReadOne");
   203 	case EFsDirReadPacked: return _L("EFsDirReadPacked");
   204 	case EFsFormatOpen: return _L("EFsFormatOpen");
   205 	case EFsFormatNext: return _L("EFsFormatNext");
   206 	case EFsRawDiskOpen: return _L("EFsRawDiskOpen");
   207 	case EFsRawDiskRead: return _L("EFsRawDiskRead");
   208 	case EFsRawDiskWrite: return _L("EFsRawDiskWrite");
   209 	case EFsResourceCountMarkStart: return _L("EFsResourceCountMarkStart");
   210 	case EFsResourceCountMarkEnd: return _L("EFsResourceCountMarkEnd");
   211 	case EFsResourceCount: return _L("EFsResourceCount");
   212 	case EFsCheckDisk: return _L("EFsCheckDisk");
   213 	case EFsGetShortName: return _L("EFsGetShortName");
   214 	case EFsGetLongName: return _L("EFsGetLongName");
   215 	case EFsIsFileOpen: return _L("EFsIsFileOpen");
   216 	case EFsListOpenFiles: return _L("EFsListOpenFiles");
   217 	case EFsSetNotifyUser: return _L("EFsSetNotifyUser");
   218 	case EFsIsFileInRom: return _L("EFsIsFileInRom");
   219 	case EFsGetNotifyUser: return _L("EFsGetNotifyUser");
   220 	case EFsIsValidName: return _L("EFsIsValidName");
   221 	case EFsReadFileSection: return _L("EFsReadFileSection");
   222 	case EFsNotifyChangeEx: return _L("EFsNotifyChangeEx");
   223 	case EFsNotifyChangeCancelEx: return _L("EFsNotifyChangeCancelEx");
   224 	case EFsDismountFileSystem: return _L("EFsDismountFileSystem");
   225 	case EFsFileSystemName: return _L("EFsFileSystemName");
   226 	case EFsScanDrive: return _L("EFsScanDrive");
   227 	case EFsControlIo: return _L("EFsControlIo");
   228 	case EFsLockDrive: return _L("EFsLockDrive");
   229 	case EFsUnlockDrive: return _L("EFsUnlockDrive");
   230 	case EFsClearPassword: return _L("EFsClearPassword");
   231 	case EFsNotifyDiskSpace: return _L("EFsNotifyDiskSpace");
   232 	case EFsNotifyDiskSpaceCancel: return _L("EFsNotifyDiskSpaceCancel");
   233 	case EFsMountFileSystemScan: return _L("EFsMountFileSystemScan");
   234 	case EFsSessionToPrivate: return _L("EFsSessionToPrivate");
   235 	case EFsPrivatePath: return _L("EFsPrivatePath");
   236 	case EFsCreatePrivatePath: return _L("EFsCreatePrivatePath");
   237 	case EFsFileDrive: return _L("EFsFileDrive");
   238 	case EFsRemountDrive: return _L("EFsRemountDrive");
   239 	case EFsAddExtension: return _L("EFsAddExtension");
   240 	case EFsMountExtension: return _L("EFsMountExtension");
   241 	case EFsDismountExtension: return _L("EFsDismountExtension");
   242 	case EFsRemoveExtension: return _L("EFsRemoveExtension");
   243 	case EFsExtensionName: return _L("EFsExtensionName");
   244 	case EFsStartupInitComplete: return _L("EFsStartupInitComplete");
   245 	case EFsSetLocalDriveMapping: return _L("EFsSetLocalDriveMapping");
   246 	case EFsFileDuplicate: return _L("EFsFileDuplicate");
   247 	case EFsFileAdopt: return _L("EFsFileAdopt");
   248 	case EFsFinaliseDrive: return _L("EFsFinaliseDrive");
   249 	case EFsSwapFileSystem: return _L("EFsSwapFileSystem");
   250 	case EFsErasePassword: return _L("EFsErasePassword");
   251 	case EFsReserveDriveSpace: return _L("EFsReserveDriveSpace");
   252 	case EFsGetReserveAccess: return _L("EFsGetReserveAccess");
   253 	case EFsReleaseReserveAccess: return _L("EFsReleaseReserveAccess");
   254 	case EFsFileName: return _L("EFsFileName");
   255     case EFsGetMediaSerialNumber: return _L("EFsGetMediaSerialNumber");
   256 	case EFsFileFullName: return _L("EFsFileFullName");
   257 	case EFsAddPlugin: return _L("EFsAddPlugin");
   258 	case EFsRemovePlugin: return _L("EFsRemovePlugin");
   259 	case EFsMountPlugin: return _L("EFsMountPlugin");
   260 	case EFsDismountPlugin: return _L("EFsDismountPlugin");
   261 	case EFsPluginName: return _L("EFsPluginName");
   262 	case EFsPluginOpen: return _L("EFsPluginOpen");
   263 	case EFsPluginSubClose: return _L("EFsPluginSubClose");
   264 	case EFsPluginDoRequest: return _L("EFsPluginDoRequest");
   265 	case EFsPluginDoControl: return _L("EFsPluginDoControl");
   266 	case EFsPluginDoCancel: return _L("EFsPluginDoCancel");
   267 	case EFsNotifyDismount: return _L("EFsNotifyDismount");
   268 	case EFsNotifyDismountCancel: return _L("EFsNotifyDismountCancel");
   269 	case EFsAllowDismount: return _L("EFsAllowDismount");
   270 	case EFsSetStartupConfiguration: return _L("EFsSetStartupConfiguration");
   271 	case EFsFileReadCancel: return _L("EFsFileReadCancel");
   272 	case EFsAddCompositeMount: return _L("EFsAddCompositeMount");
   273 	case EFsSetSessionFlags: return _L("EFsSetSessionFlags");
   274 	case EFsSetSystemDrive: return _L("EFsSetSystemDrive");
   275 	case EFsBlockMap: return _L("EFsBlockMap");
   276 	case EFsUnclamp: return _L("EFsUnclamp");
   277 	case EFsFileClamp: return _L("EFsFileClamp");
   278 	case EFsQueryVolumeInfoExt: return _L("EFsQueryVolumeInfoExt");
   279 	case EFsInitialisePropertiesFile: return _L("EFsInitialisePropertiesFile");
   280 	case EFsFileWriteDirty: return _L("EFsFileWriteDirty");
   281 	case EFsSynchroniseDriveThread: return _L("EFsSynchroniseDriveThread");
   282 	case EFsAddProxyDrive: return _L("EFsAddProxyDrive");
   283 	case EFsRemoveProxyDrive: return _L("EFsRemoveProxyDrive");
   284 	case EFsMountProxyDrive: return _L("EFsMountProxyDrive");
   285 	case EFsDismountProxyDrive:  return _L("EFsDismountProxyDrive");
   286 	case EFsNotificationAdd : return _L("EFsNotificationAdd"); 
   287 	case EFsNotificationBuffer : return _L("EFsNotificationBuffer");
   288 	case EFsNotificationCancel : return _L("EFsNotificationCancel");
   289 	case EFsNotificationOpen : return _L("EFsNotificationOpen");
   290 	case EFsNotificationRemove : return _L("EFsNotificationRemove");
   291 	case EFsNotificationRequest : return _L("EFsNotificationRequest");
   292 	case EFsNotificationSubClose : return _L("EFsNotificationSubClose");
   293 	case EFsLoadCodePage: return _L("EFsLoadCodePage");
   294 	default:
   295 		return _L("Error unknown function");
   296 		}
   297 	}
   298 
   299 
   300 void PrintStartUpReason(TMachineStartupType aReason)
   301 //
   302 // Print the reason the machine is booting up
   303 //
   304 	{
   305 
   306 	TBuf<64> nameBuf;
   307 	switch (aReason)
   308 		{
   309 	case EStartupCold: nameBuf=_L("EStartupCold"); break;
   310 	case EStartupColdReset: nameBuf=_L("EStartupColdReset"); break;
   311 	case EStartupNewOs: nameBuf=_L("EStartupNewOs"); break;
   312 	case EStartupPowerFail: nameBuf=_L("StartupPowerFail"); break;
   313 	case EStartupWarmReset: nameBuf=_L("EStartupWarmReset"); break;
   314 	case EStartupKernelFault: nameBuf=_L("EStartupKernelFault"); break;
   315 	case EStartupSafeReset: nameBuf=_L("EStartupSafeReset"); break;
   316 	default:
   317 		nameBuf=_L("Error unknown startup type");
   318 		}
   319 	__PRINT1(_L("Machine startup - %S"),&nameBuf);
   320 	};
   321 
   322 LOCAL_C void AllocPrint(TInt aFunction)
   323 //
   324 // Print number of alloc fails to complete a given function
   325 //
   326 	{
   327 	if (UserHeapAllocFailCount || KernHeapAllocFailCount)
   328 		{	
   329 		TPtrC funcName=GetFunctionName(aFunction);
   330 			{
   331 			__PRINTALLOC(_L("Function %S UserAllocs %d KernAllocs %d"),&funcName,UserHeapAllocFailCount,KernHeapAllocFailCount);
   332 			}
   333 		}
   334 	}
   335 
   336 void SimulateAllocFailure(TInt aFunctionReturnValue,TInt aFunction)
   337 //
   338 // Simulate alloc failure
   339 //
   340 	{
   341 
   342 	
   343 	if (UserHeapAllocFailCount>=0 && (aFunctionReturnValue==KErrDiskFull || aFunctionReturnValue==KErrNoMemory))
   344 		{
   345 		if (KernHeapAllocFailCount<20)
   346 			{
   347 			__KHEAP_FAILNEXT(++KernHeapAllocFailCount);
   348 			__UHEAP_FAILNEXT(UserHeapAllocFailCount);
   349 			}
   350 		else
   351 			{
   352 			KernHeapAllocFailCount=0;
   353 			__UHEAP_FAILNEXT(++UserHeapAllocFailCount);
   354 			__KHEAP_FAILNEXT(KernHeapAllocFailCount);
   355 			}
   356 		if (UserHeapAllocFailCount<100)
   357 			return;
   358 		}
   359 	if (UserHeapAllocFailCount>=0)
   360 		{
   361 		AllocPrint(aFunction);
   362 		UserHeapAllocFailCount=0;
   363 		KernHeapAllocFailCount=0;
   364 		__UHEAP_FAILNEXT(UserHeapAllocFailCount);
   365 		__KHEAP_FAILNEXT(KernHeapAllocFailCount);
   366 		}
   367 	}
   368 
   369 #else
   370 TInt FsDebugFunction(CFsRequest* /*aRequest*/)
   371 //
   372 // Not in the release build
   373 //
   374 	{
   375 	return KErrNotSupported;
   376 	}
   377 #endif
   378 
   379 TInt TFsDebugFunc::DoRequestL(CFsRequest* aRequest)
   380 //
   381 // Not in the release build
   382 //
   383 	{
   384 	return FsDebugFunction(aRequest);
   385 	}
   386 
   387 TInt TFsDebugFunc::Initialise(CFsRequest* /*aRequest*/)
   388 //
   389 // Not in the release build
   390 //
   391 	{
   392 	return KErrNone;
   393 	}
   394 
   395 TInt TFsControlIo::DoRequestL(CFsRequest* aRequest)
   396 //
   397 // General purpose test interface - .FSY specific.
   398 // Not in the release build
   399 //
   400 	{
   401 	TInt command=aRequest->Message().Int1();
   402 	TAny* param1=(TAny*)aRequest->Message().Ptr2();
   403 	TAny* param2=(TAny*)aRequest->Message().Ptr3();
   404 
   405 
   406 #if defined(_DEBUG) || defined(_DEBUG_RELEASE)
   407 	switch(command)
   408 		{	//These are non-drive commands
   409 		case KControlIoGetCorruptLogRecord:
   410 			{
   411 			// number of the log record to be retrieved (1-based)
   412 			TInt logRecNum=(TInt)param2;
   413 			TFsDebugCorruptLogRecordBuf logBuf;
   414 			TInt r=TCorruptLogRec::GetLogRecord(logBuf,logRecNum);
   415 			if(r!=KErrNone)
   416 				return r;
   417 			r=aRequest->Write(2,logBuf,0);
   418 			return r;
   419 			}
   420 		case KControlIoGetNumberOfCorruptLogRecords:
   421 			{
   422 			TPtrC8 ptrHits((TUint8*)&gNumberOfCorruptHits,sizeof(gNumberOfCorruptHits));
   423 			TInt r=aRequest->Write(2,ptrHits,0);
   424 
   425 			return r;
   426 			}
   427 		case KControlIoGetCorruptListFile:
   428 			{
   429 			// Get name of file that contains the filenames nominated as "corrupt"
   430 			TBuf8<KMaxFileName> fileName8;
   431 			if(gCorruptFileNamesListFile)
   432 				{
   433 				fileName8.Copy(*gCorruptFileNamesListFile);
   434 				}
   435 			else
   436 				{
   437 				fileName8.SetLength(0);
   438 				}
   439 			TInt r=aRequest->Write(2,fileName8,0);
   440 			return r;
   441 			}
   442 		case KControlIoCorruptLogRecordReset:
   443 			{
   444 			TCorruptLogRec::DestroyList();
   445 			TCorruptNameRec::ResetListConsumed();
   446 			return KErrNone;
   447 			}
   448 		case KControlIoCacheCount:
   449 			{
   450 			TIOCacheValues cacheValues;
   451 			cacheValues.iCloseCount= RequestAllocator::CloseCount();
   452 			cacheValues.iFreeCount= RequestAllocator::FreeCount();
   453 			cacheValues.iAllocated=	RequestAllocator::AllocatedCount();
   454 			cacheValues.iTotalCount= RequestAllocator::TotalCount();
   455 			TPckgBuf<TIOCacheValues> pkgBuf(cacheValues);
   456 
   457 			// ensure we only write what the client buffer can hold -
   458 			// this allows TIOCacheValues to increase in size without breaking BC
   459 			pkgBuf.SetLength(Min(pkgBuf.MaxLength(), aRequest->Message().GetDesMaxLengthL(2)));
   460 			
   461 			TInt r=aRequest->Write(2,pkgBuf);
   462 			return r;
   463 			}
   464 		case KControlIoGetLocalDriveNumber:
   465 			{
   466 			return DriveNumberToLocalDriveNumber(aRequest->Drive()->DriveNumber());
   467 			}
   468 		case KControlIoCancelDeferredDismount:
   469 			{
   470 			// Cancel and clear deferred dismount information
   471 			aRequest->Drive()->ClearDeferredDismount();
   472 			return KErrNone;
   473 			}
   474 		case KControlIoFileCacheStats:
   475 			{
   476 			CCacheManager* manager = CCacheManagerFactory::CacheManager();
   477 			if (manager == NULL)
   478 				return KErrNotSupported;
   479 
   480 			TFileCacheStats& stats = manager->Stats();
   481 
   482 			TPckgBuf<TFileCacheStats> pkgBuf(stats);
   483 			TInt r=aRequest->Write(2,pkgBuf);
   484 			return r;
   485 			}
   486 		case KControlIoFileCacheConfig:
   487 			{
   488 			TInt driveNumber = aRequest->Drive()->DriveNumber();
   489 
   490 			TFileCacheSettings::TFileCacheConfig* driveConfig = NULL;
   491 			TInt r = TFileCacheSettings::GetFileCacheConfig(driveNumber, driveConfig);
   492 			if (( r != KErrNone) || (driveConfig == NULL))
   493 				return KErrNotSupported;
   494 
   495 			TFileCacheConfig config;
   496 			config.iDrive = driveConfig->iDrive;
   497 			config.iFlags = driveConfig->iFlags;
   498 			config.iFileCacheReadAsync = driveConfig->iFileCacheReadAsync;
   499 			config.iFairSchedulingLen = driveConfig->iFairSchedulingLen;
   500 			config.iCacheSize = driveConfig->iCacheSize;
   501 			config.iMaxReadAheadLen = driveConfig->iMaxReadAheadLen;
   502 			config.iClosedFileKeepAliveTime = driveConfig->iClosedFileKeepAliveTime;
   503 			config.iDirtyDataFlushTime = driveConfig->iDirtyDataFlushTime;
   504 
   505 			TPckgBuf<TFileCacheConfig> pkgBuf(config);
   506 			r=aRequest->Write(2,pkgBuf);
   507 			return r;
   508 			}
   509 		case KControlIoFileCacheFlagsWrite:
   510 			{
   511 			TInt drive = aRequest->Message().Int0();
   512 
   513 			TPckgBuf<TFileCacheFlags> driveFlagsPkg;
   514 			TFileCacheFlags& driveFlags = driveFlagsPkg();
   515 
   516 			TInt r = aRequest->Read(2, driveFlagsPkg);
   517 			if (r != KErrNone)
   518 				return r;
   519 
   520 			__CACHE_PRINT2(_L("CACHE: TFileCacheFlags %x on drive %d"), driveFlags, drive);
   521 			TFileCacheSettings::SetFlags(drive, driveFlags);
   522 
   523 			return r;
   524 			}
   525 		case KControlIoFlushClosedFiles:
   526 			{
   527 			TClosedFileUtils::Remove();
   528 			return KErrNone;
   529 			}
   530 		case KControlIoSimulateLockFailureMode:
   531 			{
   532 			TPckgBuf<TBool> enabledPkg;
   533 			TInt r = aRequest->Read(2, enabledPkg);
   534 			if (r != KErrNone)
   535 				return r;
   536 
   537 			CCacheManager* manager = CCacheManagerFactory::CacheManager();
   538 			if (manager == NULL)
   539 				return KErrNotSupported;
   540 			manager->SimulateLockFailureMode(enabledPkg());
   541 			return KErrNone;
   542 			}
   543 		case KControlIoSimulateFileCacheWriteFailure:
   544 			{
   545 			CCacheManager* manager = CCacheManagerFactory::CacheManager();
   546 			if (manager == NULL)
   547 				return KErrNotSupported;
   548 			manager->SimulateWriteFailure();
   549 			return KErrNone;
   550 			}
   551 		case KControlIoFileCacheDump:
   552 			{
   553 			CCacheManager* manager = CCacheManagerFactory::CacheManager();
   554 			if (manager == NULL)
   555 				return KErrNotSupported;
   556 			manager->DumpCache();
   557 			return KErrNone;
   558 			}
   559 		case KControlIoAllocateMaxSegments:
   560 			{
   561 			TPckgBuf<TBool> enabledPkg;
   562 			TInt r = aRequest->Read(2, enabledPkg);
   563 			if (r != KErrNone)
   564 				return r;
   565 
   566 			CCacheManager* manager = CCacheManagerFactory::CacheManager();
   567 			if (manager == NULL)
   568 				return KErrNotSupported;
   569 			manager->AllocateMaxSegments(enabledPkg());
   570 			return KErrNone;
   571 			}
   572 		case KControlIoDisableFatUtilityFunctions:
   573 			{
   574 			EnableFatUtilityFunctions = EFalse;
   575 			return KErrNone;
   576 			}
   577 		case KControlIoEnableFatUtilityFunctions:
   578 			{
   579 			EnableFatUtilityFunctions = ETrue;
   580 			return KErrNone;
   581 			}
   582 		}
   583 #endif
   584 
   585 	return(aRequest->Drive()->ControlIO(aRequest->Message(),command,param1,param2));
   586 	}
   587 
   588 TInt TFsControlIo::Initialise(CFsRequest* aRequest)
   589 //
   590 // General purpose test interface - .FSY specific.
   591 // Not in the release build
   592 //
   593 	{
   594 	TInt driveNumber=aRequest->Message().Int0();
   595 	if(driveNumber<0||driveNumber>=KMaxDrives)
   596 		return(KErrArgument);
   597 	ValidateDriveDoSubst(driveNumber,aRequest);
   598 	return KErrNone;
   599 	}
   600