// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "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:

// Helper app to launch debug targets. Uses command-line parameters as follows using a + sign:

//  +n<number of applications to launch>

//  +m<number of times to launch each application>

//  +o<order of launch, 1 means launch in reverse order>

//

#include <e32base.h>

#include <e32base_private.h>

#include <e32cons.h>

#include <e32test.h>

#include <e32ldr.h>

#include <e32cmn.h>

#include <e32cmn_private.h>

#include <f32dbg.h>

#include <f32file.h>

#include <hal.h>

#include <u32hal.h>

#include <e32property.h>

#include "t_target_launcher.h"

/**

  Launch a process

  @param aProcess The RProcess object to use to create the process

  @param aExeName File name of the executable to create the process from

  @param aCommandLine The command line to pass to the new process

  @return KErrNone on success, or one of the other system wide error codes

  */

TInt LaunchProcess(RProcess& aProcess, TDesC & aExeName, TPtr & aCommandLine )

    {

    TPtrC commandLine( aCommandLine );

    TInt err = aProcess.Create( aExeName, commandLine );

    // check that there was no error raised

    if(err != KErrNone)

        {

        return err;

        }

    TRequestStatus status = KRequestPending;

    aProcess.Rendezvous(status);

    if(KRequestPending != status.Int())

        {

        // startup failed so kill the process

        RDebug::Printf( "> RProcess Rendezvous() failed with %d. Killing process", status.Int() );

        aProcess.Kill(KErrNone);

        return status.Int();

        }

    else

        {

        // start up succeeded so resume the process

        aProcess.Resume();

        User::WaitForRequest(status);

        if(KErrNone != status.Int())

            {

            RDebug::Printf( "> RProcess Resume() failed with %d. Killing process", status.Int() );

            aProcess.Kill(KErrNone);

            }

        return status.Int();

        }

    }

/**

 * Read command line parameters and control the launching of targets. 

 * Create global launch semaphore KLaunchMutexName

 */

void MainL()

    {

    TInt numApps = KNumApps;

    TInt numLaunches = KNumLaunches;

    TInt launchControl = 0;

    TInt argc = User::CommandLineLength();

    HBufC* commandLine = NULL;

    RDebug::Printf( ">Launcher Process() argc=%d", argc );

    if( argc )

        {

        commandLine = HBufC::NewLC(argc);

        TPtr commandLineBuffer = commandLine->Des();

        User::CommandLine(commandLineBuffer);

        RBuf printCommandLine;

        CleanupClosePushL( printCommandLine );

        printCommandLine.CreateL( commandLine->Des().Length() );

        printCommandLine.Copy( commandLine->Des() );

        printCommandLine.Collapse();

        RDebug::Printf( ">command line = %S", &printCommandLine );

        CleanupStack::PopAndDestroy( &printCommandLine );

        // create a lexer and read through the command line

        TLex lex(*commandLine);

        while (!lex.Eos())

            {

            // only look for options with first character '+', other switches are for the targets

            if (lex.Get() == '+')

                {

                TChar arg = lex.Get();

                switch (arg)

                    {

                    case 'n':

                        lex.Val( numApps );

                        RDebug::Printf("parsed numApps as %d", numApps);

                        break;

                    case 'm':

                        lex.Val( numLaunches );

                        RDebug::Printf("parsed numLaunches as %d", numLaunches );

                        break;

                    case 'o':

                        lex.Val( launchControl );

                        RDebug::Printf("parsed launchControl as %d", launchControl);

                        break;

                    default:

                        // unknown argument ignore it

                        break;             

                    }//switch

                }// if +

            }//while

        }//if argc

   RSemaphore launchMutex;

   TInt ret = KErrNone;

   CleanupClosePushL( launchMutex );

   ret = launchMutex.CreateGlobal( KLaunchMutexName, 0 );

   RDebug::Printf( ">Target Launcher : RSemaphore.CreateGlobal ret %d", ret);

   User::LeaveIfError( ret );

   ret = launchMutex.OpenGlobal( KLaunchMutexName );

   RDebug::Printf( ">Target Launcher : RSemaphore.OpenGlobal ret %d", ret);

   User::LeaveIfError( ret );

   //Now launch the requested number of apps for the requested number of launches

   for( ; numLaunches > 0; numLaunches-- )

       { 

       for( TInt launchIndex = numApps; launchIndex > 0; launchIndex-- )  

           {

           RDebug::Printf( ">Target Launcher:  Mutex wait app %d, launch %d", launchIndex, numLaunches );

           launchMutex.Wait();

           RBuf targetName;

           CleanupClosePushL( targetName );

           RDebug::Printf( ">Target Launcher:  targetName.Create %d, launch %d", launchIndex, numLaunches );

           targetName.Create( KTargetExe().Length() + 2 );

           if( launchControl == 1 )

               {

               // Reverse the order of the apps launched by reversing the index in the name

               RDebug::Printf( ">Target Launcher:  targetName.Format %d, launch %d", numApps - launchIndex + 1, numLaunches );

               targetName.Format( KTargetExe(), numApps - launchIndex + 1 );

               }

           else

               {

               RDebug::Printf( ">Target Launcher:  targetName.Format %d, launch %d", launchIndex, numLaunches );

               targetName.Format( KTargetExe(), launchIndex );

               }

           RProcess aProc;

           CleanupClosePushL( aProc ); 

           RDebug::Printf( ">Target Launcher: LaunchProcess %d, launch %d", launchIndex, numLaunches );

           RDebug::Printf( ">LaunchProcess %lS", &targetName );

           TPtr cmdLinePtr( commandLine->Des() );

           ret = LaunchProcess( aProc, targetName, cmdLinePtr );

           CleanupStack::PopAndDestroy( &aProc );

           RDebug::Printf( "<Target Launcher: LaunchProcess returned %d", ret );

           CleanupStack::PopAndDestroy( &targetName );

           User::LeaveIfError( ret );

           //By now the add proc event should have been delivered to the

           //test app agent.

           }

       }

    CleanupStack::PopAndDestroy( &launchMutex );

    if( commandLine )

       CleanupStack::PopAndDestroy( commandLine );

    }

GLDEF_C TInt E32Main()

	{

	RDebug::Printf( ">Launcher Process()" );

	CTrapCleanup* trap = CTrapCleanup::New();

	if (!trap)

		return KErrNoMemory;

	TRAPD(err, MainL());

	RDebug::Printf( "< Target launching returned %d", err);

	delete trap;

	return err;

	}