author | Simon Howkins <simonh@symbian.org> |
Thu, 18 Nov 2010 13:26:55 +0000 | |
branch | RCL_3 |
changeset 69 | 71775bb0f6c0 |
parent 23 | 4740b34b83ce |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2007 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 "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: Monitors a folder in the file system for file changes |
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* |
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*/ |
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|
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|
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#include <e32base.h> |
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#include <pathinfo.h> |
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#include <driveinfo.h> |
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#include <mpxlog.h> |
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#include "mpxfoldermonitor.h" |
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#include "mpxfileadditionobserver.h" |
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#include "mpxfoldermonitorobserver.h" |
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|
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// CONSTANTS |
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_LIT( KMPXMusicPath, "\\Music\\"); |
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|
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|
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// --------------------------------------------------------------------------- |
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// Constructor |
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// --------------------------------------------------------------------------- |
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// |
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CMPXFolderMonitor::CMPXFolderMonitor( MMPXFolderMonitorObserver& aObserver, |
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RFs& aFs ) : CActive( EPriorityNormal ), |
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iObserver( aObserver ), |
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iFs( aFs ) |
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|
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{ |
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CActiveScheduler::Add( this ); |
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} |
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|
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|
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// --------------------------------------------------------------------------- |
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// Second Phase Constructor |
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// --------------------------------------------------------------------------- |
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// |
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void CMPXFolderMonitor::ConstructL() |
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{ |
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} |
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// --------------------------------------------------------------------------- |
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// Two-phased constructor |
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// --------------------------------------------------------------------------- |
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// |
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CMPXFolderMonitor* CMPXFolderMonitor::NewL( MMPXFolderMonitorObserver& aObserver, |
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RFs& aFs ) |
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{ |
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CMPXFolderMonitor* self = new( ELeave ) CMPXFolderMonitor( aObserver, aFs ); |
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CleanupStack::PushL( self ); |
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self->ConstructL(); |
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CleanupStack::Pop( self ); |
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return self; |
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} |
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|
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|
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// --------------------------------------------------------------------------- |
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// Destructor |
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// --------------------------------------------------------------------------- |
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// |
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CMPXFolderMonitor::~CMPXFolderMonitor() |
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{ |
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Cancel(); |
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delete iFolderName; |
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} |
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|
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// --------------------------------------------------------------------------- |
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// Starts monitoring a particular drive |
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// --------------------------------------------------------------------------- |
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// |
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void CMPXFolderMonitor::StartL( TDriveNumber aDrive ) |
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{ |
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MPX_DEBUG1("CMPXFolderMonitor::Start <---"); |
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|
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// What is the drive name? |
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delete iFolderName; |
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iFolderName = NULL; |
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|
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switch( aDrive ) |
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{ |
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case EDriveC: |
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{ |
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// Use the default path for the phone memory |
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iFolderName = |
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PathInfo::PhoneMemoryRootPath().AllocL(); |
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break; |
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} |
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default: |
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{ |
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// Ensure that the drive is available |
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// Get the drive status |
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TUint driveStatus(0); |
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const TInt err = DriveInfo::GetDriveStatus( |
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iFs, aDrive, driveStatus ); |
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|
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if ( ( err == KErrNone ) && |
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(driveStatus & DriveInfo::EDriveUserVisible ) ) |
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109 |
{ |
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// Use the music path for the drive |
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iFolderName = HBufC::NewL(KMaxFileName); |
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TPtr folderPtr( iFolderName->Des() ); |
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User::LeaveIfError( |
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PathInfo::GetRootPath( folderPtr, aDrive ) ); |
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folderPtr.Append( KMPXMusicPath() ); |
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} |
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117 |
else |
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118 |
{ |
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TChar driveChar; |
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User::LeaveIfError( |
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iFs.DriveToChar( aDrive, driveChar ) ); |
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MPX_DEBUG2("CMPXFolderMonitor::Start: Drive %c: not supported!", |
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(TUint)driveChar ); |
0
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User::Leave( KErrNotSupported ); |
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125 |
} |
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break; |
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} |
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} |
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MPX_DEBUG2("CMPXFolderMonitor::Start: Use %S path", iFolderName); |
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130 |
|
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// Start listening |
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132 |
// |
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TNotifyType notType = ENotifyFile; |
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iFs.NotifyChange( notType, iStatus, *iFolderName ); |
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SetActive(); |
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136 |
|
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MPX_DEBUG1("CMPXFolderMonitor::Start --->"); |
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138 |
} |
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139 |
|
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140 |
// --------------------------------------------------------------------------- |
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141 |
// Start monitoring a particular folder |
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142 |
// --------------------------------------------------------------------------- |
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143 |
// |
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144 |
void CMPXFolderMonitor::StartL( const TDesC& aFolder ) |
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145 |
{ |
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MPX_DEBUG1("CMPXFolderMonitor::StartL <---"); |
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147 |
|
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// Copy folder |
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149 |
// |
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delete iFolderName; |
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iFolderName = NULL; |
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iFolderName = aFolder.AllocL(); |
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153 |
|
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154 |
// Start listening |
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155 |
// |
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TNotifyType notType = ENotifyFile; |
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iFs.NotifyChange( notType, iStatus, *iFolderName ); |
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SetActive(); |
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159 |
|
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MPX_DEBUG1("CMPXFolderMonitor::StartL --->"); |
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161 |
} |
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162 |
|
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163 |
// --------------------------------------------------------------------------- |
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// RunL callback |
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// --------------------------------------------------------------------------- |
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166 |
// |
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167 |
void CMPXFolderMonitor::RunL() |
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168 |
{ |
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MPX_DEBUG1("CMPXFolderMonitor::RunL <---"); |
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170 |
|
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171 |
// Tell the observer that this folder has changed |
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// It should go and scan it for files? |
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173 |
iObserver.HandleDirectoryChangedL( *iFolderName ); |
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174 |
|
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175 |
// Listen again |
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176 |
TNotifyType notType(ENotifyFile); |
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iFs.NotifyChange( notType, iStatus, *iFolderName ); |
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SetActive(); |
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MPX_DEBUG1("CMPXFolderMonitor::RunL --->"); |
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180 |
} |
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181 |
|
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182 |
// --------------------------------------------------------------------------- |
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183 |
// Handle Cancelling |
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184 |
// --------------------------------------------------------------------------- |
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185 |
// |
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186 |
void CMPXFolderMonitor::DoCancel() |
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187 |
{ |
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MPX_DEBUG1("CMPXFolderMonitor::DoCancel <---"); |
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189 |
|
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// Stop monitoring |
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191 |
iFs.NotifyChangeCancel(); |
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192 |
} |
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193 |
|
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194 |
// ---------------------------------------------------------------------------- |
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// Handles a leave occurring in the request completion event handler RunL() |
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// ---------------------------------------------------------------------------- |
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197 |
// |
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TInt CMPXFolderMonitor::RunError(TInt aError) |
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199 |
{ |
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MPX_DEBUG2("CMPXFolderMonitor::RunError(%d)", aError ); |
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201 |
(void)aError; |
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202 |
|
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// Listen again |
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TNotifyType notType(ENotifyFile); |
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iFs.NotifyChange( notType, iStatus, *iFolderName ); |
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SetActive(); |
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|
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return KErrNone; |
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} |