omadrm/drmengine/utils/src/procwatcher.cpp
changeset 0 95b198f216e5
child 84 b09186059647
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/omadrm/drmengine/utils/src/procwatcher.cpp	Thu Dec 17 08:52:27 2009 +0200
@@ -0,0 +1,134 @@
+/*
+* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Implementation of the process watcher
+*
+*/
+
+
+#include <e32def.h>
+#include <e32base.h>
+#include <f32file.h>
+#include <sysutil.h>
+#include "procwatcher.h"
+#include "drmlog.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+void CProcWatcher::ConstructL( const TDesC& aProcess, const TDesC& aFile )
+    {
+    DRMLOG( _L( "CProcWatcher::ConstructL <-" ) );
+
+    iProcessName.Copy( aProcess );
+    iFileName.Copy( aFile );
+    CActiveScheduler::Add( this );
+    
+    DRMLOG( _L( "CProcWatcher::ConstructL ->" ) );
+    }
+
+CProcWatcher* CProcWatcher::NewL( MWatcherObserver& aObserver, const TDesC& aProcess, const TDesC& aFile )
+    {
+    CProcWatcher* self = new( ELeave ) CProcWatcher( aObserver);
+    self->ConstructL( aProcess, aFile );
+    return self;
+    }
+
+CProcWatcher::CProcWatcher( MWatcherObserver& aObserver ):
+    CActive( EPriorityStandard ),
+    iObserver( aObserver )
+    {
+    DRMLOG( _L( "CProcWatcher::CProcWatcher ->" ) );
+    DRMLOG( _L( "CProcWatcher::CProcWatcher <-" ) );
+    }
+
+CProcWatcher::~CProcWatcher()
+    {
+    DRMLOG( _L( "CProcWatcher::~CProcWatcher ->" ) );
+    
+    Cancel();
+    
+    DRMLOG( _L( "CProcWatcher::~CProcWatcher <-" ) );
+    }
+
+TInt CProcWatcher::StartWatching()
+    {
+    TFullName name;
+    TFindProcess finder( iProcessName );
+    TInt r = KErrNone;
+    
+    DRMLOG( _L( "CProcWatcher::StartWatching ->" ) );
+    DRMLOG( iProcessName );
+    
+    r = finder.Next( name );
+    if ( r != KErrNone )
+        {
+        r = iProcess.Create( iFileName, KNullDesC );
+        if ( r == KErrNone )
+            {
+            iProcess.Resume();
+            }
+        }
+    else
+        {
+        iProcessName.Copy( name );
+        DRMLOG( iProcessName );
+        r = iProcess.Open( iProcessName );
+        }
+        
+    if ( r == KErrNone )
+        {
+        iProcess.Logon( iStatus );
+        SetActive();
+        DRMLOG( _L( "Active " ) );
+        }
+
+    DRMLOG( _L( "CProcWatcher::StartWatching <-" ) );
+    return r;
+    }
+    
+void CProcWatcher::DoCancel()
+    {
+    DRMLOG( _L( "CProcWatcher::DoCancel ->" ) );
+    
+    DRMLOG( _L( "CProcWatcher::DoCancel <-" ) );
+    }
+    
+void CProcWatcher::RunL()
+    {
+    TBuf<256> logBuffer;
+    TFileName object;
+    
+    DRMLOG( _L( "CProcWatcher::RunL ->" ) );
+    
+    DRMLOG( iProcessName );
+    logBuffer.AppendNum( iStatus.Int() );
+    logBuffer.Append( ' ' );
+    logBuffer.AppendNum( iProcess.ExitType() );
+    DRMLOG( logBuffer );
+    if ( iProcess.ExitType() != EExitPending )
+        {
+        object.Copy( KProcIdentifier );
+        object.Append( iProcessName );
+        iObserver.WatchedObjectChangedL( object );
+        }
+    else
+        {
+        if ( iProcess.Open( iProcessName ) == KErrNone )
+            {
+            iProcess.Logon( iStatus );
+            }
+        }
+    SetActive();
+    
+    DRMLOG( _L( "CProcWatcher::RunL <-" ) );
+    }