1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Symbian Foundation License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // processlaunch.cpp

    15 // 

    16 //

    17 

    18 #include <f32file.h>

    19 #include "cprocesslaunch.h"

    20 

    21 //----------------------------------------------------------------------------	

    22 

    23 /** called by the launcher! Launch the process by specified parameters

    24 find the process and launch it

    25 

    26 @param aParams A reference to TProcessStartParams object

    27 @return Symbian error code

    28 @see TProcessStartParams

    29 @internalTechnology

    30 @released

    31  */

    32 TInt CProcessLaunch::ProcessLaunch(TProcessStartParams& aParams)

    33 // now prevents multiple instances of the same image being launched!

    34 // So P&S servers now look like realCServer2 servers.

    35 	{

    36 	TFullName fullName;

    37 	_LIT(KStar, "*");

    38 	TParse parser;

    39 	parser.SetNoWild(aParams.GetProcessFileName(), NULL, NULL);

    40 	fullName.Append(parser.NameAndExt());

    41 	fullName.Append(KStar);

    42 	

    43 	TFindProcess processFinder(fullName);

    44 	TInt err = KErrNotFound;

    45 	while (err = processFinder.Next(fullName), err == KErrNone)

    46 		{

    47 		RProcess process;

    48 		TInt processOpenErr = process.Open(processFinder);

    49 		if (processOpenErr == KErrNone)

    50 			{

    51 			TExitType exitType = process.ExitType();

    52 			if (exitType == EExitPending)

    53 				{

    54 				// Found a running instance of the process,

    55 				// so return without starting another instance.

    56 				process.Close();

    57 				return KErrNone;

    58 				}

    59 			}

    60 			process.Close();		

    61 		}

    62 	

    63 	// No running instance found, so start one.

    64 	return (DoProcessLaunch(aParams));

    65 	}

    66 

    67 /** Create the process by specified parameters and wait for the request

    68 

    69 @param aParams A reference to TProcessStartParams object

    70 @return Symbian error code

    71 @see TProcessStartParams

    72 @internalTechnology

    73 @released

    74  */

    75 TInt CProcessLaunch::DoProcessLaunch(TProcessStartParams& aParams)

    76 	{

    77 	RProcess process;

    78  	

    79  	TInt r=process.Create(aParams.GetProcessFileName(),aParams.GetAsCommandLine());

    80 	if (r!=KErrNone)

    81 		{

    82 		return r;

    83 		}

    84 	// are we expecing to rendezvous with the process we have created above

    85 	if(aParams.GetRendezvousRequired())

    86 		{

    87 		TRequestStatus stat;

    88 		process.Rendezvous(stat);

    89 		if (stat!=KRequestPending)

    90 			{

    91 			process.Kill(0);

    92 			}

    93 		else

    94 			{

    95 			process.Resume();

    96 			}

    97 		User::WaitForRequest(stat);

    98 		r=(process.ExitType()==EExitPanic) ? KErrGeneral : stat.Int();

    99 		}

   100 	process.Close();

   101 	return r;

   102 	}