--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hti/HtiWatchDog/src/HtiWatchDog.cpp	Tue Feb 02 01:57:15 2010 +0200
@@ -0,0 +1,165 @@
+/*
+* Copyright (c) 2009 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:  HtiWatchDog implementation.
+*
+*/
+
+
+// INCLUDE FILES
+#include <e32base.h>
+
+#ifdef __ENABLE_LOGGING__
+
+#include <flogger.h>
+_LIT( KLogFolder, "hti" );
+_LIT( KLogFile,   "htiwatchdog.txt" );
+
+#define HTI_LOG_TEXT(a1) {_LIT(temp, a1); RFileLogger::Write(KLogFolder, KLogFile, EFileLoggingModeAppend, temp);}
+#define HTI_LOG_DES(a1) {RFileLogger::Write(KLogFolder, KLogFile, EFileLoggingModeAppend, a1);}
+#define HTI_LOG_FORMAT(a1,a2) {_LIT(temp, a1); RFileLogger::WriteFormat(KLogFolder, KLogFile, EFileLoggingModeAppend, temp, (a2));}
+
+#else   // !__ENABLE_LOGGING__
+
+#define HTI_LOG_TEXT(a1)
+#define HTI_LOG_DES(a1)
+#define HTI_LOG_FORMAT(a1,a2)
+
+#endif // __ENABLE_LOGGING__
+
+// CONSTANTS
+_LIT( KHtiFrameworkExeName,    "HtiFramework.exe" );
+_LIT( KHtiMainThreadName,      "HtiMain" );
+_LIT( KHtiWatchDogName,        "HtiWatchDog" );
+_LIT( KHtiAdminStartParameter, "admin" );
+
+const TTimeIntervalSeconds minInterval( 60 );
+
+// MACROS
+
+// LOCAL CONSTANTS AND MACROS
+
+// MODULE DATA STRUCTURES
+
+// LOCAL FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+
+// ============================ LOCAL FUNCTIONS ===============================
+
+LOCAL_C void StartHtiProcessL()
+    {
+    RProcess htiProcess;
+    User::LeaveIfError( htiProcess.Create(
+            KHtiFrameworkExeName, KHtiAdminStartParameter ) );
+    htiProcess.Resume();
+    htiProcess.Close();
+    }
+
+
+LOCAL_C TInt StartL()
+    {
+    HTI_LOG_TEXT( "HtiWatchDog starting..." );
+    TFullName threadName;
+    TFullName matchPattern;
+    matchPattern.Append( _L( "*" ) );
+    matchPattern.Append( KHtiMainThreadName );
+    matchPattern.Append( _L( "*" ) );
+
+    TTime startTime;
+    startTime.HomeTime();
+
+    TTimeIntervalSeconds elapsedTime;
+    TTime now;
+
+    while ( true )
+        {
+        // Use thread finder to find the HTI main thread
+        TFindThread threadFinder;
+        threadFinder.Find( matchPattern );
+        HTI_LOG_TEXT( "Trying to find HTI main thread" );
+        TInt err =  threadFinder.Next( threadName );
+        if ( err )
+            {
+            HTI_LOG_FORMAT( "HTI main thread not found, err: %d", err );
+            User::Panic( _L( "HTI find err" ), err );
+            }
+
+        HTI_LOG_TEXT( "HTI main thread found, opening it" );
+        RThread thread;
+        err = thread.Open( threadName );
+        if ( err )
+            {
+            HTI_LOG_FORMAT( "Could not open HTI main thread, err: %d", err );
+            User::Panic( _L( "HTI open err" ), err );
+            }
+
+        // Logon to HTI main thread and wait for its death
+        HTI_LOG_TEXT( "HTI main thread opened, waiting for its death" );
+        TRequestStatus status;
+        thread.Logon( status );
+        User::WaitForRequest( status );
+        thread.Close();
+
+        // try to restart only if minimum interval time has elapsed
+        now.HomeTime();
+        now.SecondsFrom( startTime, elapsedTime );
+        if ( elapsedTime < minInterval )
+            {
+            HTI_LOG_FORMAT( "HTI died too quickly, in %d seconds", elapsedTime.Int() );
+            HTI_LOG_TEXT( "Giving up" );
+            break;
+            }
+
+        // reset the startTime
+        startTime.HomeTime();
+
+        // try to restart HTI
+        HTI_LOG_TEXT( "HTI died, trying to restart it" );
+        TRAP( err, StartHtiProcessL() );
+        if ( err )
+            {
+            HTI_LOG_FORMAT( "Could not restart HTI, err: %d", err );
+            User::Panic( _L( "HTI start err" ), err );
+            }
+
+        // wait a while for HTI process to start
+        User::After( 5 * 100 * 1000 );
+        }
+
+    HTI_LOG_TEXT( "HtiWatchDog shutting down" );
+    return KErrNone;
+    }
+
+GLDEF_C TInt E32Main()
+    {
+    __UHEAP_MARK;
+
+    CTrapCleanup* cleanup = CTrapCleanup::New();
+    CActiveScheduler *scheduler = new(ELeave) CActiveScheduler;
+    CActiveScheduler::Install( scheduler );
+
+    User::RenameThread( KHtiWatchDogName );
+
+    TRAPD( err, StartL() );
+
+    delete scheduler;
+    delete cleanup;
+
+   __UHEAP_MARKEND;
+
+    return err;
+    }
+
+
+// End of File