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// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// f32\sfile\sf_notifier.cpp
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//
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//
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#include "sf_notifier.h"
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#include "sf_file_cache.h"
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CFsObjectCon* FsNotificationManager::iNotifyRequests = NULL;
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RFastLock FsNotificationManager::iChainLock;
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TInt FsNotificationManager::iFilterRegister[];
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CFsPool<CFsNotificationBlock>* FsNotificationManager::iPool;
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CFsNotificationPathFilter* CFsNotificationPathFilter::NewL(const TDesC& aPath, const TDesC& aFilename)
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{
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CFsNotificationPathFilter* self = new (ELeave) CFsNotificationPathFilter();
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CleanupStack::PushL(self);
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self->ConstructL(aPath,aFilename);
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CleanupStack::Pop(self);
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return self;
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}
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void CFsNotificationPathFilter::ConstructL(const TDesC& aPath, const TDesC& aFilename)
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{
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//Allocate the path and filename
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iPath = aPath.AllocL();
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iFilename = aFilename.AllocL();
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}
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CFsNotificationPathFilter::~CFsNotificationPathFilter()
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{
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if(iFilename)
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delete iFilename;
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if(iPath)
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delete iPath;
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}
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CFsNotificationPathFilter::CFsNotificationPathFilter()
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: iPath(NULL), iFilename(NULL)
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{
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}
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CFsNotifyRequest* CFsNotifyRequest::NewL()
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{
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CFsNotifyRequest* self = new(ELeave) CFsNotifyRequest();
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CleanupStack::PushL(self);
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self->ConstructL();
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CleanupStack::Pop();
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return self;
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}
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void CFsNotifyRequest::ConstructL()
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{
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User::LeaveIfError(iClientSyncLock.CreateLocal());
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User::LeaveIfError(iTailSemaphore.CreateLocal());
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}
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CFsNotifyRequest::CFsNotifyRequest()
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{
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SetActive(EInactive);
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}
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CFsNotifyRequest::~CFsNotifyRequest()
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{
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__PRINT(_L("CFsNotifyRequest::~CFsNotifyRequest()"));
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RemoveFilters();
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if(ClientMsgHandle()!=0)
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iClientMsg.Complete(KErrCancel);
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if(iBufferMsg.Handle()!=0)
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iBufferMsg.Complete(KErrCancel);
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iClientSyncLock.Close();
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iTailSemaphore.Close();
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}
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/*
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* Returns the Array of TypeFilters.
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* Each TFsNotificationTypeFilter matches to a particular TFsNotification::TFsNotificationType
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* and has a CFsNotificationFilter which stores the iPath and iName associated with this filter type.
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*
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* (These are speerated so that we can have multiple type filters for every name filter)
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*/
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TFsNotificationTypeArray* CFsNotifyRequest::FilterTypeList(TInt aDrive,TInt aIndex)
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{
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__ASSERT_DEBUG(aIndex < KNumRegisterableFilters,Fault(ENotificationFault));
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TFsNotificationTypeDriveArray* filters = iDrivesTypesFiltersMap.Find(aDrive);
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if(filters)
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return &((*filters)[aIndex]);
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else
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return NULL;
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}
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//Sets filter's notification request status
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void CFsNotifyRequest::SetActive(TNotifyRequestStatus aValue)
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{
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iNotifyRequestStatus = aValue;
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}
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CFsNotifyRequest::TNotifyRequestStatus CFsNotifyRequest::ActiveStatus()
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{
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return (TNotifyRequestStatus)iNotifyRequestStatus;
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}
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//Completes and frees notification request
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//In case of KErrNone must be called with iChainLock already held
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void CFsNotifyRequest::CompleteClientRequest(TInt aReason,TBool aIsCancel)
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{
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__PRINT(_L("CFsNotifyRequest::CompleteClientRequest()"));
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iClientSyncLock.Wait();
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if(aReason==KErrNone)
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{
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__PRINT(_L("CFsNotifyRequest::CompleteClientRequest() - Complete KErrNone"));
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//Synchronising the current iServerTail to the client.
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iClientHead = iClientTail; //Client has read all previous entries
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iClientTail = iServerTail; //Client's new tail is everything the server has been writing since this function was last called
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TInt clientTail = iClientTail;
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TPckg<TInt> tailDes(clientTail);
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iClientMsg.Write(KMsgPtr0,tailDes);
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}
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else if(aIsCancel)
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{
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__PRINT(_L("CFsNotifyRequest::CompleteClientRequest() - Complete isCancel"));
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iServerTail = 0;
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iClientTail = 0;
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iClientHead = 0;
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TPckgBuf<TInt> tailDes(iClientTail);
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//Perhaps client has crashed so no point checking return:
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iClientMsg.Write(KMsgPtr0,tailDes);
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}
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__PRINT(_L("CFsNotifyRequest::CompleteClientRequest() - Complete Request"));
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iClientMsg.Complete(aReason);
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iClientSyncLock.Signal();
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}
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TInt CFsNotifyRequest::SynchroniseBuffer(CFsNotificationBlock& aBlock,TInt aServerTail, TInt aNotificationSize)
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{
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TPtrC8 blockDes((TText8*)aBlock.Data(),aNotificationSize);
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return iBufferMsg.Write(KMsgPtr0,blockDes,aServerTail);
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}
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//Removes all filters.
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//Deletes iPath, iFilename
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TInt CFsNotifyRequest::RemoveFilters()
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{
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__PRINT(_L("CFsNotifyRequest::RemoveFilters()"));
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//For every drive with filters set...
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RHashMap<TInt,TFsNotificationTypeDriveArray>::TIter iterator(iDrivesTypesFiltersMap);
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TFsNotificationTypeDriveArray* currentDriveFilters = (TFsNotificationTypeDriveArray*)iterator.NextValue();
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while(currentDriveFilters)
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{
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//For every filter array (1 for each type of TFsNotificationType)
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for(TInt filterType = 0; filterType < KNumRegisterableFilters; filterType++)
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{
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TFsNotificationTypeArray& filterList = (*currentDriveFilters)[filterType];
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TInt filterTypeCount = filterList.Count();
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if(filterTypeCount)
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{
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//Remove this type from the filter register
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TFsNotification::TFsNotificationType type = FsNotificationHelper::NotificationType(filterType);
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FsNotificationManager::SetFilterRegister(type,EFalse,filterTypeCount);
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}
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filterList.Reset();
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filterList.Close();
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}
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currentDriveFilters->Reset();
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currentDriveFilters->Close();
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iterator.RemoveCurrent();
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currentDriveFilters = (TFsNotificationTypeDriveArray*)iterator.NextValue();
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}
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iDrivesTypesFiltersMap.Close();
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iPathFilterList.ResetAndDestroy();
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iPathFilterList.Close();
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return KErrNone;
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}
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TInt CFsNotifyRequest::AddFilterL(CFsNotificationPathFilter* aFilter, TUint aMask)
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{
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__PRINT(_L("CFsNotifyRequest::AddFilterL"));
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iPathFilterList.AppendL(aFilter);
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//Get the drive number to so know which drive array to add the filter(s) to.
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TInt driveNum = FsNotificationHelper::DriveNumber(aFilter->iPath->Des());
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TInt notifyType = 1;
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TInt r = KErrNone;
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//Create/Add a TypeFilter for each type in aMask
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while((notifyType & KNotificationValidFiltersMask) && (aMask & KNotificationValidFiltersMask))
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{
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//If this notifyType is present in aMask
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if(aMask & notifyType)
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{
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TFsNotificationTypeFilter typeFilter;
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typeFilter.iNotificationType = (TFsNotification::TFsNotificationType) notifyType;
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typeFilter.iPathFilter = aFilter;
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TInt index = FsNotificationHelper::TypeToIndex(typeFilter.iNotificationType);
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//If the per-drive-filterLists have not
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//been set up yet then do so now.
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TFsNotificationTypeDriveArray* driveArray = iDrivesTypesFiltersMap.Find(driveNum);
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if(!driveArray)
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{
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TFsNotificationTypeDriveArray dArray;
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r = iDrivesTypesFiltersMap.Insert(driveNum,dArray);
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User::LeaveIfError(r);
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driveArray = iDrivesTypesFiltersMap.Find(driveNum);
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//Create filter arrays for every type
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for(TInt i =0; i< KNumRegisterableFilters; i++)
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{
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TFsNotificationTypeArray filterArray;
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driveArray->Append(filterArray);
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}
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}
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TFsNotificationTypeArray& filterArray= (*driveArray)[index];
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filterArray.Append(typeFilter);
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//Remove this type from our mask
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//and continue
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aMask ^= notifyType;
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}
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notifyType <<= 1;
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}
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return r;
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}
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TInt CFsNotifyRequest::SetClientMessage(const RMessage2& aClientMsg)
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{
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__PRINT(_L("CFsNotifyRequest::SetClientMessage"));
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iClientMsg = aClientMsg;
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return KErrNone;
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}
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TInt CFsNotifyRequest::ClientMsgHandle()
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{
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return iClientMsg.Handle();
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}
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void CFsNotifyRequest::CloseNotification()
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{
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__PRINT(_L("CFsNotifyRequest::CloseNotification()"));
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iBufferMsg.Complete(KErrNone);
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if(ClientMsgHandle()!=0)
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CompleteClientRequest(KErrCancel,EFalse);
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}
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//New notification request from client
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void FsNotificationManager::AddNotificationRequestL(CFsNotifyRequest* aNotificationRequest)
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{
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__PRINT(_L("FsNotificationManager::AddNotificationRequestL"));
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Lock();
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iNotifyRequests->AddL(aNotificationRequest,ETrue);
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Unlock();
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}
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//Notification request cancelled
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//Must be called with iChainLock held
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void FsNotificationManager::RemoveNotificationRequest(CFsNotifyRequest* aNotificationRequest)
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{
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__PRINT(_L("FsNotificationManager::RemoveNotificationRequest"));
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iNotifyRequests->Remove(aNotificationRequest,ETrue);
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}
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void FsNotificationManager::RemoveNotificationRequest(CSessionFs* aSession)
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{
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__PRINT(_L("FsNotificationManager::RemoveNotificationRequest(CSessionFs*)"));
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TInt count = Count();
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if(count)
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{
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Lock();
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count = Count(); //check again just incase it's changed before we got the lock
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if(count)
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{
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for(TInt i=0; i < count; i++)
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{
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//Remove all notification requests associated with this session.
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CFsNotifyRequest* notify = (CFsNotifyRequest*)(*iNotifyRequests)[i];
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if(notify->iSession == aSession)
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{
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RemoveNotificationRequest(notify);
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delete notify;
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}
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}
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if(!Count())
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{
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__PRINT(_L("FsNotificationManager::RemoveNotificationRequest(CSessionFs*) - Closing Manager"));
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Close();
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}
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}
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Unlock();
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}
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}
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TBool FsNotificationManager::IsInitialised()
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{
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__PRINT(_L("FsNotificationManager::IsInitialised()"));
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return (TBool)iNotifyRequests;
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}
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void FsNotificationManager::OpenL()
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{
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__PRINT(_L("FsNotificationManager::InitialiseL()"));
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if(!iNotifyRequests)
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{
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if(iChainLock.Handle() == 0)
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{
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User::LeaveIfError(iChainLock.CreateLocal());
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}
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iNotifyRequests = TheContainer->CreateL();
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iPool = CFsPool<CFsNotificationBlock>::New(KNotificationPoolSize);
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User::LeaveIfNull(iPool);
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}
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}
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void FsNotificationManager::SetFilterRegister(TUint aFilter, TBool aAdd, TInt aCount)
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{
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__PRINT2(_L("FsNotificationManager::SetFilterRegister(aFilter=%u,aAdd=%d)"),aFilter,aAdd);
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TInt index = FsNotificationHelper::TypeToIndex((TFsNotification::TFsNotificationType)aFilter);
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TInt& fr = FsNotificationManager::FilterRegister(index);
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__ASSERT_DEBUG((aAdd) ? fr >= 0 : fr > 0,Fault(ENotificationFault));
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fr+= aAdd ? aCount : -aCount;
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}
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void FsNotificationManager::SetFilterRegisterMask(TUint aMask,TBool aAdd)
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{
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__PRINT(_L("FsNotificationManager::RegisterFilterMask()"));
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TInt notifyType = 1;
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while(notifyType & KNotificationValidFiltersMask && aMask & KNotificationValidFiltersMask)
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{
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if(aMask & notifyType)
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{
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SetFilterRegister(notifyType,aAdd);
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aMask ^= notifyType;
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}
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notifyType <<= 1;
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}
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}
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TInt& FsNotificationManager::FilterRegister(TInt aIndex)
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{
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__PRINT(_L("FsNotificationManager::FilterRegister()"));
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__ASSERT_DEBUG(aIndex < KNumRegisterableFilters,Fault(ENotificationFault));
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|
365 |
return iFilterRegister[aIndex];
|
|
|
366 |
}
|
|
|
367 |
|
|
|
368 |
//Must be called with the iChainLock
|
|
|
369 |
void FsNotificationManager::Close()
|
|
|
370 |
{
|
|
|
371 |
__PRINT(_L("FsNotificationManager::Stop()"));
|
|
|
372 |
CFsObjectCon*& request = iNotifyRequests;
|
|
|
373 |
if(request)
|
|
|
374 |
{
|
|
|
375 |
TheContainer->Delete(request);
|
|
|
376 |
delete iPool;
|
|
|
377 |
iPool = NULL;
|
|
|
378 |
}
|
|
|
379 |
request = NULL;
|
|
|
380 |
}
|
|
|
381 |
|
|
|
382 |
TInt FsNotificationManager::Count()
|
|
|
383 |
{
|
|
|
384 |
__PRINT(_L("FsNotificationManager::Count()"));
|
|
|
385 |
if(IsInitialised())
|
|
|
386 |
return iNotifyRequests->Count();
|
|
|
387 |
return 0;
|
|
|
388 |
}
|
|
|
389 |
|
|
|
390 |
void FsNotificationManager::Lock()
|
|
|
391 |
{
|
|
|
392 |
__PRINT(_L("--->FsNotificationManager::Lock()"));
|
|
|
393 |
iChainLock.Wait();
|
|
|
394 |
}
|
|
|
395 |
|
|
|
396 |
void FsNotificationManager::Unlock()
|
|
|
397 |
{
|
|
|
398 |
__PRINT(_L("<---FsNotificationManager::Unlock()"));
|
|
|
399 |
iChainLock.Signal();
|
|
|
400 |
}
|
|
|
401 |
|
|
|
402 |
//Get the notification type based on the TFsMessage function
|
|
|
403 |
void FsNotificationHelper::NotificationType(TInt aFunction,TFsNotification::TFsNotificationType& aNotificationType)
|
|
|
404 |
{
|
|
|
405 |
__PRINT(_L("FsNotificationHelper::NotificationType"));
|
|
|
406 |
switch(aFunction)
|
|
|
407 |
{
|
|
|
408 |
case EFsFileWrite:
|
|
|
409 |
case EFsFileWriteDirty:
|
|
|
410 |
case EFsFileSetSize:
|
|
|
411 |
{
|
|
|
412 |
aNotificationType = TFsNotification::EFileChange;
|
|
|
413 |
break;
|
|
|
414 |
}
|
|
|
415 |
case EFsRename:
|
|
|
416 |
case EFsFileRename:
|
|
|
417 |
case EFsReplace:
|
|
|
418 |
{
|
|
|
419 |
aNotificationType = TFsNotification::ERename;
|
|
|
420 |
break;
|
|
|
421 |
}
|
|
|
422 |
case EFsMkDir:
|
|
|
423 |
case EFsFileCreate:
|
|
|
424 |
case EFsFileReplace:
|
|
|
425 |
{
|
|
|
426 |
aNotificationType = TFsNotification::ECreate;
|
|
|
427 |
break;
|
|
|
428 |
}
|
|
|
429 |
case EFsFileSetAtt:
|
|
|
430 |
case EFsFileSet:
|
|
|
431 |
case EFsSetEntry:
|
|
|
432 |
{
|
|
|
433 |
aNotificationType = TFsNotification::EAttribute;
|
|
|
434 |
break;
|
|
|
435 |
}
|
|
|
436 |
case EFsDelete:
|
|
|
437 |
case EFsRmDir:
|
|
|
438 |
{
|
|
|
439 |
aNotificationType = TFsNotification::EDelete;
|
|
|
440 |
break;
|
|
|
441 |
}
|
|
|
442 |
case EFsSetVolume:
|
|
|
443 |
{
|
|
|
444 |
aNotificationType = TFsNotification::EVolumeName;
|
|
|
445 |
break;
|
|
|
446 |
}
|
|
|
447 |
case EFsSetDriveName:
|
|
|
448 |
{
|
|
|
449 |
aNotificationType = TFsNotification::EDriveName;
|
|
|
450 |
break;
|
|
|
451 |
}
|
|
|
452 |
case EFsDismountFileSystem:
|
|
|
453 |
case EFsMountFileSystem:
|
|
|
454 |
case EFsFormatNext:
|
|
|
455 |
case EFsRawDiskWrite:
|
|
|
456 |
case EFsMountFileSystemScan:
|
|
|
457 |
{
|
|
|
458 |
aNotificationType = TFsNotification::EMediaChange;
|
|
|
459 |
break;
|
|
|
460 |
}
|
|
|
461 |
default:
|
|
|
462 |
{
|
|
|
463 |
aNotificationType = (TFsNotification::TFsNotificationType)0;
|
|
|
464 |
break;
|
|
|
465 |
}
|
|
|
466 |
}
|
|
|
467 |
}
|
|
|
468 |
|
|
|
469 |
//=====CFsNotificationBlock============================
|
|
|
470 |
// Uses CFsPool
|
|
|
471 |
|
|
|
472 |
CFsNotificationBlock* CFsNotificationBlock::New()
|
|
|
473 |
{
|
|
|
474 |
return new CFsNotificationBlock();
|
|
|
475 |
}
|
|
|
476 |
CFsNotificationBlock::CFsNotificationBlock()
|
|
|
477 |
{
|
|
|
478 |
}
|
|
|
479 |
CFsNotificationBlock::~CFsNotificationBlock()
|
|
|
480 |
{
|
|
|
481 |
//Nothing to do here
|
|
|
482 |
}
|
|
|
483 |
TAny* CFsNotificationBlock::Data()
|
|
|
484 |
{
|
|
|
485 |
return (TAny*)&iData;
|
|
|
486 |
}
|
|
|
487 |
|
|
|
488 |
|
|
|
489 |
//=====FsNotificationManager===========================
|
|
|
490 |
|
|
|
491 |
//Get the path of the file, folder or drive name based on the TFsMessage function
|
|
|
492 |
void FsNotificationHelper::PathName(CFsClientMessageRequest& aRequest, TDes& aPath)
|
|
|
493 |
{
|
|
|
494 |
__PRINT(_L("FsNotificationHelper::PathName"));
|
|
|
495 |
//Get the notification type
|
|
|
496 |
TInt function = aRequest.Operation()->Function();
|
|
|
497 |
|
|
|
498 |
//Get the filename(s)
|
|
|
499 |
switch(function)
|
|
|
500 |
{
|
|
|
501 |
case EFsFileWrite: //EParseSrc | EFileShare
|
|
|
502 |
case EFsFileSetSize: //EParseSrc | EFileShare
|
|
|
503 |
case EFsFileSetAtt: //EParseDst | EParseSrc, - should not use these; has share.
|
|
|
504 |
case EFsFileSet:
|
|
|
505 |
case EFsFileWriteDirty: //EFileShare
|
|
|
506 |
{
|
|
|
507 |
CFileShare* share = NULL;
|
|
|
508 |
CFileCB* file = NULL;
|
|
|
509 |
GetFileFromScratch(&aRequest,share,file);
|
|
|
510 |
aPath.Append(file->DriveNumber() + 'A');
|
|
|
511 |
aPath.Append(':');
|
|
|
512 |
aPath.Append(file->FileName().Des());
|
|
|
513 |
break;
|
|
|
514 |
}
|
|
|
515 |
case EFsFileCreate: //EParseSrc
|
|
|
516 |
case EFsDelete: //EParseSrc
|
|
|
517 |
case EFsSetEntry: //EParseSrc,
|
|
|
518 |
case EFsFileRename: //EParseDst | EParseSrc,
|
|
|
519 |
case EFsRename: //EParseDst | EParseSrc,
|
|
|
520 |
case EFsReplace: //EParseDst | EParseSrc,
|
|
|
521 |
case EFsFileReplace: //EParseSrc
|
|
|
522 |
{
|
|
|
523 |
aPath.Copy(aRequest.Src().FullName());
|
|
|
524 |
break;
|
|
|
525 |
}
|
|
|
526 |
case EFsRmDir: //EParseSrc
|
|
|
527 |
case EFsMkDir: //EParseSrc
|
|
|
528 |
{
|
|
|
529 |
aPath.Copy(aRequest.Src().DriveAndPath());
|
|
|
530 |
break;
|
|
|
531 |
}
|
|
|
532 |
case EFsFormatNext: //EParseSrc
|
|
|
533 |
case EFsDismountFileSystem: //0
|
|
|
534 |
case EFsMountFileSystem: //0
|
|
|
535 |
case EFsSetVolume: //0
|
|
|
536 |
case EFsSetDriveName: //ESync
|
|
|
537 |
case EFsRawDiskWrite: //EParseSrc
|
|
|
538 |
case EFsMountFileSystemScan:
|
|
|
539 |
{
|
|
|
540 |
_LIT(KFormatDrive,"?:");
|
|
|
541 |
TBuf<2> drive;
|
|
|
542 |
drive.Append(KFormatDrive);
|
|
|
543 |
drive[0] = TText(aRequest.Drive()->DriveNumber() + 'A');
|
|
|
544 |
aPath.Copy(drive);
|
|
|
545 |
break;
|
|
|
546 |
}
|
|
|
547 |
default:
|
|
|
548 |
ASSERT(0);
|
|
|
549 |
break;
|
|
|
550 |
}
|
|
|
551 |
}
|
|
|
552 |
|
|
|
553 |
//Get the new path of the file, folder or drive name based on the TFsMessage function
|
|
|
554 |
void FsNotificationHelper::NewPathName(CFsClientMessageRequest& aRequest, TPtrC& aNewPath)
|
|
|
555 |
{
|
|
|
556 |
__PRINT(_L("FsNotificationHelper::NewPathName"));
|
|
|
557 |
//Get the notification type
|
|
|
558 |
TInt function = aRequest.Operation()->Function();
|
|
|
559 |
|
|
|
560 |
//Get the filename(s)
|
|
|
561 |
switch(function)
|
|
|
562 |
{
|
|
|
563 |
case EFsFileRename: //EParseDst | EParseSrc,
|
|
|
564 |
case EFsRename: //EParseDst | EParseSrc,
|
|
|
565 |
case EFsReplace: //EParseDst | EParseSrc,
|
|
|
566 |
{
|
|
|
567 |
aNewPath.Set(aRequest.Dest().FullName());
|
|
|
568 |
break;
|
|
|
569 |
}
|
|
|
570 |
case EFsSetDriveName: //ESync
|
|
|
571 |
{
|
|
|
572 |
TFileName name;
|
|
|
573 |
aRequest.ReadL(KMsgPtr1, name);
|
|
|
574 |
aNewPath.Set(name);
|
|
|
575 |
break;
|
|
|
576 |
}
|
|
|
577 |
case EFsSetVolume: //0
|
|
|
578 |
{
|
|
|
579 |
TFileName name;
|
|
|
580 |
aRequest.ReadL(KMsgPtr0, name);
|
|
|
581 |
aNewPath.Set(name);
|
|
|
582 |
break;
|
|
|
583 |
}
|
|
|
584 |
default:
|
|
|
585 |
{
|
|
|
586 |
ASSERT(0);
|
|
|
587 |
break;
|
|
|
588 |
}
|
|
|
589 |
}
|
|
|
590 |
}
|
|
|
591 |
|
|
|
592 |
//Get the size of the notification based on its type
|
|
|
593 |
TInt FsNotificationHelper::NotificationSize(CFsClientMessageRequest& aRequest, TFsNotification::TFsNotificationType aNotificationType, const TDesC& aName)
|
|
|
594 |
{
|
|
|
595 |
__PRINT(_L("FsNotificationHelper::NotificationSize"));
|
|
|
596 |
|
|
|
597 |
/*
|
|
|
598 |
* If there are no new names, the order of the data in the buffer is:
|
|
|
599 |
* Word1 : NotificationSize (2 bytes) , PathSize (2 bytes)
|
|
|
600 |
* Word2 : NotificationType (Lower 2 bytes)
|
|
|
601 |
* Word(s) : Path (TText8) , [Any sub-class members]
|
|
|
602 |
*
|
|
|
603 |
* Else for notification types ERename, EVolumeName and EDriveName the order is:
|
|
|
604 |
* Word1 : NotificationSize (2 bytes) , PathSize (2 bytes)
|
|
|
605 |
* Word2 : NewNameSize (2 bytes) , NotificationType (2 bytes)
|
|
|
606 |
* Word(s) : Path (TText8) , NewName (TText8)
|
|
|
607 |
*
|
|
|
608 |
* EOverflow size: KNotificationHeaderSize
|
|
|
609 |
*/
|
|
|
610 |
|
|
|
611 |
TInt size = KNotificationHeaderSize + Align4(aName.Size());
|
|
|
612 |
|
|
|
613 |
switch(aNotificationType)
|
|
|
614 |
{
|
|
|
615 |
//NewName
|
|
|
616 |
case TFsNotification::ERename:
|
|
|
617 |
case TFsNotification::EVolumeName:
|
|
|
618 |
case TFsNotification::EDriveName:
|
|
|
619 |
{
|
|
|
620 |
TPtrC dest;
|
|
|
621 |
NewPathName(aRequest,dest);
|
|
|
622 |
size += Align4(dest.Size());
|
|
|
623 |
break;
|
|
|
624 |
}
|
|
|
625 |
case TFsNotification::EFileChange:
|
|
|
626 |
{
|
|
|
627 |
size += sizeof(TInt64);
|
|
|
628 |
break;
|
|
|
629 |
}
|
|
|
630 |
case TFsNotification::EAttribute:
|
|
|
631 |
{
|
|
|
632 |
size += sizeof(TUint64);
|
|
|
633 |
break;
|
|
|
634 |
}
|
|
|
635 |
case TFsNotification::ECreate:
|
|
|
636 |
case TFsNotification::EDelete:
|
|
|
637 |
case TFsNotification::EMediaChange:
|
|
|
638 |
{
|
|
|
639 |
break;
|
|
|
640 |
}
|
|
|
641 |
default:
|
|
|
642 |
{
|
|
|
643 |
ASSERT(0);
|
|
|
644 |
break;
|
|
|
645 |
}
|
|
|
646 |
}
|
|
|
647 |
return (TUint16) size;
|
|
|
648 |
}
|
|
|
649 |
|
|
|
650 |
TFsNotification::TFsNotificationType FsNotificationHelper::NotificationType(TInt& aIndex)
|
|
|
651 |
{
|
|
|
652 |
__PRINT(_L("FsNotificationHelper::NotificationType(TInt)"));
|
|
|
653 |
__ASSERT_DEBUG(aIndex < KNumRegisterableFilters, Fault(ENotificationFault));
|
|
|
654 |
|
|
|
655 |
switch(aIndex) //No break statements here on purpose
|
|
|
656 |
{
|
|
|
657 |
case 7 : return TFsNotification::EMediaChange;
|
|
|
658 |
case 6 : return TFsNotification::EDriveName;
|
|
|
659 |
case 5 : return TFsNotification::EVolumeName;
|
|
|
660 |
case 4 : return TFsNotification::EDelete;
|
|
|
661 |
case 3 : return TFsNotification::EAttribute;
|
|
|
662 |
case 2 : return TFsNotification::ECreate;
|
|
|
663 |
case 1 : return TFsNotification::ERename;
|
|
|
664 |
case 0 : return TFsNotification::EFileChange;
|
|
|
665 |
default: ASSERT(0); return (TFsNotification::TFsNotificationType) 0;
|
|
|
666 |
}
|
|
|
667 |
}
|
|
|
668 |
|
|
|
669 |
//Get the array index of the notification based on its type
|
|
|
670 |
TInt FsNotificationHelper::TypeToIndex(TFsNotification::TFsNotificationType aType)
|
|
|
671 |
{
|
|
|
672 |
__PRINT(_L("FsNotificationHelper::ArrayIndex"));
|
|
|
673 |
|
|
|
674 |
TInt index = 0;
|
|
|
675 |
switch(aType) //No break statements here on purpose
|
|
|
676 |
{
|
|
|
677 |
case TFsNotification::EMediaChange: index++;
|
|
|
678 |
case TFsNotification::EDriveName: index++;
|
|
|
679 |
case TFsNotification::EVolumeName: index++;
|
|
|
680 |
case TFsNotification::EDelete: index++;
|
|
|
681 |
case TFsNotification::EAttribute: index++;
|
|
|
682 |
case TFsNotification::ECreate: index++;
|
|
|
683 |
case TFsNotification::ERename: index++;
|
|
|
684 |
case TFsNotification::EFileChange: // skip;
|
|
|
685 |
default: break;
|
|
|
686 |
}
|
|
|
687 |
__ASSERT_DEBUG(index < KNumRegisterableFilters, Fault(ENotificationFault));
|
|
|
688 |
return index;
|
|
|
689 |
}
|
|
|
690 |
|
|
|
691 |
TInt FsNotificationHelper::DriveNumber(const TPtrC& aPath)
|
|
|
692 |
{
|
|
|
693 |
if(aPath.Length() >= 2 && ((TChar)aPath[1])==(TChar)':')
|
|
|
694 |
{
|
|
|
695 |
TChar driveChar = ((TChar)aPath[0]);
|
|
|
696 |
driveChar.UpperCase();
|
|
|
697 |
TInt driveNum = driveChar-(TChar)'A';
|
|
|
698 |
return driveNum;
|
|
|
699 |
}
|
|
|
700 |
else
|
|
|
701 |
{
|
|
|
702 |
return KErrNotFound;
|
|
|
703 |
}
|
|
|
704 |
}
|
|
|
705 |
|
|
|
706 |
//Get the attributes set and cleared
|
|
|
707 |
void FsNotificationHelper::Attributes(CFsClientMessageRequest& aRequest, TUint& aSet, TUint& aClear)
|
|
|
708 |
{
|
|
|
709 |
__PRINT(_L("FsNotificationHelper::Attributes"));
|
|
|
710 |
|
|
|
711 |
TInt function = aRequest.Operation()->Function();
|
|
|
712 |
const RMessage2& msg = aRequest.Message();
|
|
|
713 |
|
|
|
714 |
switch(function)
|
|
|
715 |
{
|
|
|
716 |
case EFsFileSet:
|
|
|
717 |
{
|
|
|
718 |
aSet = msg.Int1();
|
|
|
719 |
aClear = msg.Int2();
|
|
|
720 |
break;
|
|
|
721 |
}
|
|
|
722 |
case EFsFileSetAtt:
|
|
|
723 |
{
|
|
|
724 |
aSet = msg.Int0();
|
|
|
725 |
aClear = msg.Int1();
|
|
|
726 |
break;
|
|
|
727 |
}
|
|
|
728 |
case EFsSetEntry:
|
|
|
729 |
{
|
|
|
730 |
aSet = msg.Int2();
|
|
|
731 |
aClear = msg.Int3();
|
|
|
732 |
break;
|
|
|
733 |
}
|
|
|
734 |
default:
|
|
|
735 |
{
|
|
|
736 |
ASSERT(0);
|
|
|
737 |
break;
|
|
|
738 |
}
|
|
|
739 |
}
|
|
|
740 |
}
|
|
|
741 |
|
|
|
742 |
|
|
|
743 |
TBool CFsNotifyRequest::ValidateNotification(TInt aNotificationSize, TInt& aServerTail)
|
|
|
744 |
{
|
|
|
745 |
__PRINT(_L("CFsNotifyRequest::ValidateNotification"));
|
|
|
746 |
//RDebug::Print(_L("CFsNotifyRequest::ValidateNotification - iServerTail=%d, aServerTail=%d, iClientTail=%d,iClientHead=%d, aNotificationSize=%d"),iServerTail,aServerTail,iClientTail,iClientHead,aNotificationSize);
|
|
|
747 |
//
|
|
|
748 |
//Start Validation
|
|
|
749 |
//
|
|
|
750 |
TBool overflow = EFalse;
|
|
|
751 |
|
|
|
752 |
//Check that we have not filled the buffer
|
|
|
753 |
//Also if iClientMsg is present this is the first notification
|
|
|
754 |
if (aServerTail == iClientHead && ClientMsgHandle()==0)
|
|
|
755 |
{
|
|
|
756 |
//Overflow
|
|
|
757 |
overflow = ETrue;
|
|
|
758 |
return overflow;
|
|
|
759 |
}
|
|
|
760 |
|
|
|
761 |
//Work out remaining size taking account of whether the end position is
|
|
|
762 |
//before or after the overflow position.
|
|
|
763 |
TInt remainingSize = (iClientHead > aServerTail)
|
|
|
764 |
? iClientHead - aServerTail
|
|
|
765 |
: iClientBufferSize - (aServerTail - iClientHead);
|
|
|
766 |
|
|
|
767 |
//In order to ensure that we can always fit in an overflow notification,
|
|
|
768 |
//Remove the size of an overflow notification from the total free space in the buffer
|
|
|
769 |
remainingSize -= KNotificationHeaderSize;
|
|
|
770 |
|
|
|
771 |
//Check whether there is any chance of this notification fitting in the buffer
|
|
|
772 |
if (aNotificationSize > remainingSize)
|
|
|
773 |
{
|
|
|
774 |
//Overflow
|
|
|
775 |
overflow = ETrue;
|
|
|
776 |
}
|
|
|
777 |
//Check that the notification fits in a contiguous chunk.
|
|
|
778 |
//If we've wrapped around already..
|
|
|
779 |
else if (iClientHead > aServerTail)
|
|
|
780 |
{
|
|
|
781 |
//Does it fit?
|
|
|
782 |
if ((iClientHead - aServerTail) < aNotificationSize)
|
|
|
783 |
{
|
|
|
784 |
//Overflow
|
|
|
785 |
overflow = ETrue;
|
|
|
786 |
}
|
|
|
787 |
}
|
|
|
788 |
//Else, We've not wrapped around yet.
|
|
|
789 |
//Does it fit at the end?
|
|
|
790 |
else if ((iClientBufferSize - aServerTail) < aNotificationSize)
|
|
|
791 |
{
|
|
|
792 |
//Notification won't fit in the space at the end of the buffer
|
|
|
793 |
//Fill end of buffer with KNotificationBufferFiller (if we're not at the very end already)
|
|
|
794 |
if(iServerTail != iClientBufferSize)
|
|
|
795 |
{
|
|
|
796 |
//If there is any dead space it should always be at least 1 word big
|
|
|
797 |
TPtrC8 fillerDes((TText8*) &KNotificationBufferFiller, sizeof(TUint));
|
|
|
798 |
iBufferMsg.Write(KMsgPtr0, fillerDes, aServerTail);
|
|
|
799 |
}
|
|
|
800 |
|
|
|
801 |
//It doesn't fit at the end,
|
|
|
802 |
//does it fit at the beginning?
|
|
|
803 |
if (iClientHead < aNotificationSize)
|
|
|
804 |
{
|
|
|
805 |
//Overflow
|
|
|
806 |
overflow = ETrue;
|
|
|
807 |
}
|
|
|
808 |
//Notification would fit at the beginning...
|
|
|
809 |
else
|
|
|
810 |
{
|
|
|
811 |
//...however we need to ensure that there is
|
|
|
812 |
//still space for overflow next time.
|
|
|
813 |
if ((iClientHead - aNotificationSize) < KNotificationHeaderSize)
|
|
|
814 |
{
|
|
|
815 |
overflow = ETrue;
|
|
|
816 |
}
|
|
|
817 |
else
|
|
|
818 |
{
|
|
|
819 |
//Everything was ok, update aServerTail
|
|
|
820 |
aServerTail = 0;
|
|
|
821 |
}
|
|
|
822 |
}
|
|
|
823 |
}
|
|
|
824 |
|
|
|
825 |
//
|
|
|
826 |
//End Validation
|
|
|
827 |
//
|
|
|
828 |
return overflow;
|
|
|
829 |
}
|
|
|
830 |
|
|
|
831 |
// Called from FsNotificationManager::HandleChange().
|
|
|
832 |
// Sends notifications into the client's buffer.
|
|
|
833 |
// If there is a iClientMsg then this is the first time this
|
|
|
834 |
// has been called since the client called RequestNotifications.
|
|
|
835 |
// In this situation we complete the client request.
|
|
|
836 |
TInt CFsNotifyRequest::NotifyChange(CFsClientMessageRequest* aRequest,const TDesC& aName, TFsNotification::TFsNotificationType aNotificationType, CFsNotificationBlock& aBlock)
|
|
|
837 |
{
|
|
|
838 |
/*
|
|
|
839 |
* Different notification types have different data associated with them.
|
|
|
840 |
*
|
|
|
841 |
* All types EXCEPT for ERename, EVolumeName and EDriveName have the following data
|
|
|
842 |
* and are aligned in the buffer like so:
|
|
|
843 |
* Word1 : NotificationSize (2 bytes) , PathSize (2 bytes)
|
|
|
844 |
* Word2 : NotificationType (Lower 2 bytes)
|
|
|
845 |
* Word(s) : Path (TText8) , [Any sub-class members]
|
|
|
846 |
*
|
|
|
847 |
* Else for notification types ERename, EVolumeName and EDriveName the order is:
|
|
|
848 |
* Word1 : NotificationSize (2 bytes) , PathSize (2 bytes)
|
|
|
849 |
* Word2 : NewNameSize (2 bytes) , NotificationType (2 bytes)
|
|
|
850 |
* Word(s) : Path (TText8) , NewName (TText8)
|
|
|
851 |
*
|
|
|
852 |
* Overflow notification type doesn't have a name, so its namesize is 0
|
|
|
853 |
* and there will be no Word3.
|
|
|
854 |
*/
|
|
|
855 |
|
|
|
856 |
__PRINT(_L("CFsNotifyRequest::NotifyChange()"));
|
|
|
857 |
|
|
|
858 |
TInt notificationSize = FsNotificationHelper::NotificationSize(*aRequest,aNotificationType,aName);
|
|
|
859 |
|
|
|
860 |
iClientSyncLock.Wait();
|
|
|
861 |
iTailSemaphore.Wait();
|
|
|
862 |
|
|
|
863 |
TInt tail = iServerTail;
|
|
|
864 |
|
|
|
865 |
//Validation
|
|
|
866 |
TBool overflow = ValidateNotification(notificationSize, tail);
|
|
|
867 |
|
|
|
868 |
//Now that we know there is enough space in the buffer we can write
|
|
|
869 |
//the standard attributes that all notifications have.
|
|
|
870 |
|
|
|
871 |
//We can store the size of the notification
|
|
|
872 |
//and the size of the name in the same word.
|
|
|
873 |
|
|
|
874 |
TUint16 nameLen = 0; //Overflow has no name
|
|
|
875 |
TInt notifSize = KNotificationHeaderSize;
|
|
|
876 |
if(!overflow)
|
|
|
877 |
{
|
|
|
878 |
nameLen = (TUint16)aName.Size();
|
|
|
879 |
notifSize = notificationSize;
|
|
|
880 |
}
|
|
|
881 |
else
|
|
|
882 |
{
|
|
|
883 |
aNotificationType = TFsNotification::EOverflow;
|
|
|
884 |
}
|
|
|
885 |
|
|
|
886 |
iServerTail = tail + notifSize;
|
|
|
887 |
iTailSemaphore.Signal();
|
|
|
888 |
|
|
|
889 |
TInt writeOffset = 0; //Where to write in the block
|
|
|
890 |
|
|
|
891 |
//Store notification Size and NameSize (Word1)
|
|
|
892 |
TUint sizeNameLen = (notifSize << 16) | nameLen;
|
|
|
893 |
memcpy((TText8*)aBlock.Data()+writeOffset,&sizeNameLen,sizeof(TUint));
|
|
|
894 |
writeOffset+=sizeof(TUint);
|
|
|
895 |
|
|
|
896 |
TPtrC newName;
|
|
|
897 |
|
|
|
898 |
if (aNotificationType == TFsNotification::ERename ||
|
|
|
899 |
aNotificationType == TFsNotification::EVolumeName ||
|
|
|
900 |
aNotificationType == TFsNotification::EDriveName)
|
|
|
901 |
{
|
|
|
902 |
FsNotificationHelper::NewPathName(*aRequest,newName);
|
|
|
903 |
//Store NewNameSize and notification Type (Word2)
|
|
|
904 |
TUint typeNewNameLen = ((TUint16)newName.Size() << 16) | (TUint16)aNotificationType;
|
|
|
905 |
memcpy((TText8*)aBlock.Data()+writeOffset,&typeNewNameLen,sizeof(TUint));
|
|
|
906 |
}
|
|
|
907 |
else
|
|
|
908 |
{
|
|
|
909 |
//Store notification Type (Word2)
|
|
|
910 |
memcpy((TText8*)aBlock.Data()+writeOffset,&aNotificationType,sizeof(TUint));
|
|
|
911 |
}
|
|
|
912 |
writeOffset+=sizeof(TUint);
|
|
|
913 |
|
|
|
914 |
CFileShare* share = NULL;
|
|
|
915 |
CFileCB* file = NULL;
|
|
|
916 |
if(aRequest) //Don't always have a request such as when called from localdrives.
|
|
|
917 |
{
|
|
|
918 |
GetFileFromScratch(aRequest, share, file);
|
|
|
919 |
}
|
|
|
920 |
|
|
|
921 |
//
|
|
|
922 |
//Store UID
|
|
|
923 |
/*
|
|
|
924 |
TUid uid;
|
|
|
925 |
uid.iUid = KErrUnknown;
|
|
|
926 |
if(aRequest && aRequest->Operation()->iFunction == EFsFileWriteDirty)
|
|
|
927 |
{
|
|
|
928 |
uid = aRequest->iUID;
|
|
|
929 |
}
|
|
|
930 |
else if(aRequest)
|
|
|
931 |
{
|
|
|
932 |
uid = aRequest->Message().Identity();
|
|
|
933 |
}
|
|
|
934 |
memcpy((TText8*)aBlock.Data()+writeOffset,&uid.iUid,sizeof(TUint32));
|
|
|
935 |
writeOffset+=sizeof(TUint32);
|
|
|
936 |
*/
|
|
|
937 |
|
|
|
938 |
if(!overflow)
|
|
|
939 |
{
|
|
|
940 |
//Store Name (Word3)
|
|
|
941 |
memcpy((TText8*)aBlock.Data()+writeOffset,aName.Ptr(),aName.Size());
|
|
|
942 |
writeOffset += Align4(aName.Size());
|
|
|
943 |
|
|
|
944 |
|
|
|
945 |
switch (aNotificationType)
|
|
|
946 |
{
|
|
|
947 |
case TFsNotification::EFileChange:
|
|
|
948 |
{
|
|
|
949 |
TInt64 size = 0;
|
|
|
950 |
size = file->CachedSize64();
|
|
|
951 |
memcpy((TText8*)aBlock.Data()+writeOffset,&size,sizeof(TInt64));
|
|
|
952 |
writeOffset += sizeof(TInt64);
|
|
|
953 |
break;
|
|
|
954 |
}
|
|
|
955 |
case TFsNotification::ERename:
|
|
|
956 |
case TFsNotification::EVolumeName:
|
|
|
957 |
case TFsNotification::EDriveName:
|
|
|
958 |
{
|
|
|
959 |
//Store NewName
|
|
|
960 |
memcpy((TText8*)aBlock.Data()+writeOffset,newName.Ptr(),newName.Size());
|
|
|
961 |
writeOffset += Align4(newName.Size());
|
|
|
962 |
break;
|
|
|
963 |
}
|
|
|
964 |
case TFsNotification::EAttribute:
|
|
|
965 |
{
|
|
|
966 |
TUint set=0;
|
|
|
967 |
TUint clear=0;
|
|
|
968 |
FsNotificationHelper::Attributes(*aRequest,set,clear);
|
|
|
969 |
TUint64 att = MAKE_TUINT64(set,clear);
|
|
|
970 |
memcpy((TText8*)aBlock.Data()+writeOffset,&att,sizeof(TUint64));
|
|
|
971 |
writeOffset += sizeof(TUint64);
|
|
|
972 |
break;
|
|
|
973 |
}
|
|
|
974 |
default:
|
|
|
975 |
{
|
|
|
976 |
break;
|
|
|
977 |
}
|
|
|
978 |
}
|
|
|
979 |
}
|
|
|
980 |
|
|
|
981 |
//Write to client buffer
|
|
|
982 |
TInt r = SynchroniseBuffer(aBlock,tail,notifSize);
|
|
|
983 |
|
|
|
984 |
//Signal the iClientSyncLock.
|
|
|
985 |
//When all locks on this are signaled then CompleteClientRequest can be called.
|
|
|
986 |
//This signal moves when we have a cache system
|
|
|
987 |
iClientSyncLock.Signal();
|
|
|
988 |
|
|
|
989 |
//We need to complete if this was the first
|
|
|
990 |
//write to the client's buffer
|
|
|
991 |
if(ClientMsgHandle()!=0 && r==KErrNone)
|
|
|
992 |
{
|
|
|
993 |
__PRINT4(_L("CFsNotifyRequest::NotifyChange iClientHead(%d) iClientTail(%d) iServerTail(%d) iClientBufferSize(%d)"),iClientHead,iClientTail,iServerTail,iClientBufferSize);
|
|
|
994 |
CompleteClientRequest(KErrNone);
|
|
|
995 |
}
|
|
|
996 |
else if(!overflow)
|
|
|
997 |
{
|
|
|
998 |
SetActive(CFsNotifyRequest::EOutstanding);
|
|
|
999 |
}
|
|
|
1000 |
else
|
|
|
1001 |
{
|
|
|
1002 |
SetActive(CFsNotifyRequest::EOutstandingOverflow);
|
|
|
1003 |
}
|
|
|
1004 |
|
|
|
1005 |
if(r!= KErrNone)
|
|
|
1006 |
{
|
|
|
1007 |
//RDebug::Print(_L("sf_notifier.cpp line %d function = %d, r = %d"),__LINE__, aRequest->FsFunction(),r);
|
|
|
1008 |
//RDebug::Print(_L("iServerTail=%d, tail=%d, iClientBufferSize=%d, overflow=%d"),iServerTail,tail,iClientBufferSize,overflow);
|
|
|
1009 |
SetActive(CFsNotifyRequest::EInactive);
|
|
|
1010 |
}
|
|
|
1011 |
return r;
|
|
|
1012 |
}
|
|
|
1013 |
|
|
|
1014 |
#ifdef SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
1015 |
|
|
|
1016 |
//A change has occurred in f32 represented by this
|
|
|
1017 |
//request object. Work out which CfsNotify’s are interested
|
|
|
1018 |
// (if any) and call CfsNotifyRequest::NotifyChange.
|
|
|
1019 |
void FsNotificationManager::HandleChange(CFsClientMessageRequest* aRequest,const TDesC& aOperationName, TFsNotification::TFsNotificationType aType)
|
|
|
1020 |
{
|
|
|
1021 |
__PRINT2(_L("FsNotificationManager::HandleChange() aRequest=0x%x, aType=%d"),&aRequest,aType);
|
|
|
1022 |
|
|
|
1023 |
Lock(); //ToDo: Read Lock (Read/Write Lock)
|
|
|
1024 |
if(Count())
|
|
|
1025 |
{
|
|
|
1026 |
//Only search while there are filters of this type set up.
|
|
|
1027 |
TInt index = FsNotificationHelper::TypeToIndex(aType);
|
|
|
1028 |
TInt& filterCount = FsNotificationManager::FilterRegister(index);
|
|
|
1029 |
TInt seenFilter = filterCount; //Number of requests set up for this type
|
|
|
1030 |
|
|
|
1031 |
//Iterate CFsNotifyRequests
|
|
|
1032 |
TInt count = iNotifyRequests->Count();
|
|
|
1033 |
|
|
|
1034 |
if(aType == TFsNotification::EMediaChange)
|
|
|
1035 |
seenFilter = count;
|
|
|
1036 |
|
|
|
1037 |
//If there aren't any requests then breakout
|
|
|
1038 |
if(count == 0)
|
|
|
1039 |
{
|
|
|
1040 |
Unlock();
|
|
|
1041 |
return;
|
|
|
1042 |
}
|
|
|
1043 |
|
|
|
1044 |
TInt driveNum = FsNotificationHelper::DriveNumber(aOperationName);
|
|
|
1045 |
|
|
|
1046 |
//For every notification request.
|
|
|
1047 |
for(TInt i=0; i<count && seenFilter; ++i)
|
|
|
1048 |
{
|
|
|
1049 |
CFsNotifyRequest* notifyRequest = (CFsNotifyRequest*)(*iNotifyRequests)[i];
|
|
|
1050 |
CFsNotifyRequest::TNotifyRequestStatus status = notifyRequest->ActiveStatus();
|
|
|
1051 |
if(! (status==CFsNotifyRequest::EActive ||
|
|
|
1052 |
status==CFsNotifyRequest::EOutstanding))
|
|
|
1053 |
{
|
|
|
1054 |
//Not active; check next notification request
|
|
|
1055 |
continue;
|
|
|
1056 |
}
|
|
|
1057 |
|
|
|
1058 |
//Check whether we are interested in this change.
|
|
|
1059 |
//Get the filters associated with this operation on this drive
|
|
|
1060 |
TFsNotificationTypeArray* filterList = notifyRequest->FilterTypeList(driveNum,index);
|
|
|
1061 |
DoHandleChange(filterList,seenFilter,aRequest,notifyRequest,aOperationName,aType);
|
|
|
1062 |
|
|
|
1063 |
if(aType==TFsNotification::EMediaChange)
|
|
|
1064 |
continue; //next request
|
|
|
1065 |
|
|
|
1066 |
//If there are still filters to check
|
|
|
1067 |
if(seenFilter)
|
|
|
1068 |
{
|
|
|
1069 |
//Check changes that are not tied to a particular drive
|
|
|
1070 |
filterList = notifyRequest->FilterTypeList(KErrNotFound,index);
|
|
|
1071 |
DoHandleChange(filterList,seenFilter,aRequest,notifyRequest,aOperationName,aType);
|
|
|
1072 |
}
|
|
|
1073 |
}
|
|
|
1074 |
}
|
|
|
1075 |
Unlock();
|
|
|
1076 |
}
|
|
|
1077 |
|
|
|
1078 |
//A change has occurred in f32 represented by this
|
|
|
1079 |
//request object. Work out which CfsNotify’s are interested
|
|
|
1080 |
// (if any) and call CfsNotifyRequest::NotifyChange.
|
|
|
1081 |
void FsNotificationManager::HandleChange(CFsClientMessageRequest& aRequest, TFsNotification::TFsNotificationType aType)
|
|
|
1082 |
{
|
|
|
1083 |
__PRINT(_L("FsNotificationManager::HandleChange"));
|
|
|
1084 |
TFileName currentOperationsName;
|
|
|
1085 |
FsNotificationHelper::PathName(aRequest, currentOperationsName);
|
|
|
1086 |
if(currentOperationsName.Length())
|
|
|
1087 |
HandleChange(&aRequest,currentOperationsName,aType);
|
|
|
1088 |
}
|
|
|
1089 |
|
|
|
1090 |
//A change has occurred in f32 represented by this
|
|
|
1091 |
//request object. Work out which CfsNotify’s are interested
|
|
|
1092 |
// (if any) and call CfsNotifyRequest::NotifyChange.
|
|
|
1093 |
void FsNotificationManager::HandleChange(CFsClientMessageRequest& aRequest)
|
|
|
1094 |
{
|
|
|
1095 |
if(Count() && aRequest.Message().Handle() != KLocalMessageHandle)
|
|
|
1096 |
{
|
|
|
1097 |
__PRINT(_L("FsNotificationManager::HandleChange"));
|
|
|
1098 |
TFsNotification::TFsNotificationType operationNotificationType;
|
|
|
1099 |
FsNotificationHelper::NotificationType(aRequest.FsFunction(), operationNotificationType);
|
|
|
1100 |
HandleChange(aRequest,operationNotificationType);
|
|
|
1101 |
}
|
|
|
1102 |
}
|
|
|
1103 |
|
|
|
1104 |
|
|
|
1105 |
////
|
|
|
1106 |
#else
|
|
|
1107 |
////
|
|
|
1108 |
|
|
|
1109 |
void FsNotificationManager::HandleChange(CFsClientMessageRequest* ,const TDesC&, TFsNotification::TFsNotificationType)
|
|
|
1110 |
{
|
|
|
1111 |
return;
|
|
|
1112 |
}
|
|
|
1113 |
|
|
|
1114 |
void FsNotificationManager::HandleChange(CFsClientMessageRequest& , TFsNotification::TFsNotificationType)
|
|
|
1115 |
{
|
|
|
1116 |
return;
|
|
|
1117 |
}
|
|
|
1118 |
|
|
|
1119 |
void FsNotificationManager::HandleChange(CFsClientMessageRequest&)
|
|
|
1120 |
{
|
|
|
1121 |
return;
|
|
|
1122 |
}
|
|
|
1123 |
|
|
|
1124 |
#endif //SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
1125 |
|
|
|
1126 |
//Called from FsNotificationManager::DoHandleChange
|
|
|
1127 |
FsNotificationManager::TFsNotificationFilterMatch FsNotificationManager::DoMatchFilter(CFsClientMessageRequest* aRequest, const TDesC& aOperationName,CFsNotificationPathFilter& aFilter)
|
|
|
1128 |
{
|
|
|
1129 |
TFsNotificationFilterMatch filterMatch = EDifferent;
|
|
|
1130 |
TParsePtrC parseOp(aOperationName);
|
|
|
1131 |
TPtrC pathOpDes = parseOp.DriveAndPath();
|
|
|
1132 |
TPtrC nameOpDes = parseOp.NameAndExt();
|
|
|
1133 |
TInt pathLength = aFilter.iPath->Des().Length();
|
|
|
1134 |
TInt nameLength = aFilter.iFilename->Des().Length();
|
|
|
1135 |
TInt paths = -1;
|
|
|
1136 |
TInt names = -1;
|
|
|
1137 |
if(pathLength != 0)
|
|
|
1138 |
{
|
|
|
1139 |
paths = pathOpDes.MatchF(aFilter.iPath->Des());
|
|
|
1140 |
}
|
|
|
1141 |
else //if no path filter was set up
|
|
|
1142 |
// then we need to ensure we don't notify on data-caged areas which we shouldn't
|
|
|
1143 |
{
|
|
|
1144 |
TInt r = PathCheck(aRequest,aOperationName.Mid(2),&KCapFsSysFileTemp,&KCapFsPriFileTemp,&KCapFsROFileTemp, __PLATSEC_DIAGNOSTIC_STRING("FsNotificationManager::DoHandleChange"));
|
|
|
1145 |
if(r != KErrNone)
|
|
|
1146 |
return EContinue; //next filter
|
|
|
1147 |
}
|
|
|
1148 |
|
|
|
1149 |
if(nameLength != 0)
|
|
|
1150 |
{
|
|
|
1151 |
names = nameOpDes.MatchF(aFilter.iFilename->Des());
|
|
|
1152 |
}
|
|
|
1153 |
//Check: Path & Names Match
|
|
|
1154 |
if((paths == 0 || pathLength==0) && // paths match &&
|
|
|
1155 |
(names >= 0 || (nameLength==0 && nameOpDes.Length()==0))) // names match OR there are no names (i.e. operation is a dir and no filename filter)
|
|
|
1156 |
{
|
|
|
1157 |
filterMatch = EMatch;
|
|
|
1158 |
}
|
|
|
1159 |
return filterMatch;
|
|
|
1160 |
}
|
|
|
1161 |
|
|
|
1162 |
// This is called on a per drive basis.
|
|
|
1163 |
void FsNotificationManager::DoHandleChange(TFsNotificationTypeArray* aFilterTypeArray,TInt& aSeenFilter, CFsClientMessageRequest* aRequest, CFsNotifyRequest* aNotifyRequest, const TDesC& aOperationName, TFsNotification::TFsNotificationType& aType)
|
|
|
1164 |
{
|
|
|
1165 |
__PRINT(_L("FsNotificationManager::DoHandleChange()"));
|
|
|
1166 |
|
|
|
1167 |
if(!aFilterTypeArray)
|
|
|
1168 |
return;
|
|
|
1169 |
|
|
|
1170 |
TInt numFilters = aFilterTypeArray->Count();
|
|
|
1171 |
|
|
|
1172 |
if(aType == TFsNotification::EMediaChange)
|
|
|
1173 |
numFilters = 1; //Only need to notify once per drive.
|
|
|
1174 |
|
|
|
1175 |
//For every filter in this request
|
|
|
1176 |
for(TInt j = 0; j < numFilters;++j)
|
|
|
1177 |
{
|
|
|
1178 |
//Is the correct notification type
|
|
|
1179 |
aSeenFilter--;
|
|
|
1180 |
|
|
|
1181 |
TBool filterMatch = EDifferent;
|
|
|
1182 |
if(aType != TFsNotification::EMediaChange)
|
|
|
1183 |
{
|
|
|
1184 |
CFsNotificationPathFilter& filter = *(((*aFilterTypeArray)[j]).iPathFilter);
|
|
|
1185 |
__PRINT2(_L("FsNotificationManager::DoHandleChange() operationName=%S, filterName=%S"),&aOperationName,filter.iPath);
|
|
|
1186 |
|
|
|
1187 |
filterMatch = DoMatchFilter(aRequest,aOperationName,filter);
|
|
|
1188 |
if(filterMatch == FsNotificationManager::EContinue)
|
|
|
1189 |
continue; //triggers for data cages
|
|
|
1190 |
|
|
|
1191 |
//We need to check for changes coming in to a directory when its rename
|
|
|
1192 |
if(aType == TFsNotification::ERename && filterMatch==FsNotificationManager::EDifferent)
|
|
|
1193 |
{
|
|
|
1194 |
TPtrC aDestinationNamePtrC;
|
|
|
1195 |
FsNotificationHelper::NewPathName(*aRequest,aDestinationNamePtrC);
|
|
|
1196 |
__PRINT2(_L("FsNotificationManager::DoHandleChange() destinationName=%S, filterName=%S"),&aDestinationNamePtrC,filter.iPath);
|
|
|
1197 |
filterMatch = DoMatchFilter(aRequest,aDestinationNamePtrC,filter);
|
|
|
1198 |
}
|
|
|
1199 |
}
|
|
|
1200 |
|
|
|
1201 |
if(filterMatch || (aType == TFsNotification::EMediaChange))//Match or MediaChange (report regardless of filters)
|
|
|
1202 |
{
|
|
|
1203 |
//Matching - Handle change
|
|
|
1204 |
|
|
|
1205 |
//Get a CFsNotificationBlock to use
|
|
|
1206 |
//So that we can do IPC from a single place.
|
|
|
1207 |
CFsNotificationBlock* block = iPool->Allocate();
|
|
|
1208 |
|
|
|
1209 |
TInt r = aNotifyRequest->NotifyChange(aRequest,aOperationName,aType,*block);
|
|
|
1210 |
|
|
|
1211 |
//Free block
|
|
|
1212 |
iPool->Free(block);
|
|
|
1213 |
|
|
|
1214 |
if(r != KErrNone)
|
|
|
1215 |
{
|
|
|
1216 |
//Something went wrong writing to the client's buffer
|
|
|
1217 |
aNotifyRequest->SetActive(CFsNotifyRequest::EInactive);
|
|
|
1218 |
if(aNotifyRequest->ClientMsgHandle()!=0)
|
|
|
1219 |
aNotifyRequest->CompleteClientRequest(r,EFalse);
|
|
|
1220 |
break; //Go to outer for (i.e. next request in HandleChange)
|
|
|
1221 |
}
|
|
|
1222 |
}
|
|
|
1223 |
continue; //next filter
|
|
|
1224 |
}
|
|
|
1225 |
}
|