C++ MainL函数代码示例

/**
 * Executable Entry Point
 * Top level always creates TRAP harness.
 * Calls MainL() inside the TRAP harness
 */
GLDEF_C TInt E32Main()
	{
	__UHEAP_MARK;
	CTrapCleanup* cleanup = CTrapCleanup::New();
	if(cleanup == NULL)
		{
		return KErrNoMemory;
		}

  // Fix PDEF124952, set the priority EPriorityAbsoluteHigh. In this case, the timeout will 
  // take effect even if the server executes with almost 100% CPU usage.
  RThread().SetPriority(EPriorityAbsoluteHigh);
  // End PDEF124952
  
	// Check to see if the plugin wrapper around the GetSystemDrive is loadable
	// If yes, then instantiate the wrapper object and obtain the default system drive
	// Else, use the hardcoded default drive as c:
	TDriveName defaultSysDrive(KTEFLegacySysDrive);	
	
	RLibrary pluginLibrary;
	CWrapperUtilsPlugin* plugin = TEFUtils::WrapperPluginNew(pluginLibrary);
	
	if (plugin!=NULL)
		{
		TDriveUnit driveUnit(plugin->GetSystemDrive());
		defaultSysDrive.Copy(driveUnit.Name());
		delete plugin;
		pluginLibrary.Close();
		}
	
	TBool enableSysStart = ETrue;
	CTestExecuteIniData* iniData = NULL;
	TRAPD(err, iniData = CTestExecuteIniData::NewL(defaultSysDrive));
	if (err == KErrNone)
		{
		// Extract all the key values within the object
		iniData->ExtractValuesFromIni();
		iniData->GetKeyValueFromIni(KTEFSystemStarter, enableSysStart);
		}

	err = KErrNone;
	#if !(defined TEF_LITE)
	if (enableSysStart)
		{
		TRAP(err, StartSystemL());
		__ASSERT_ALWAYS(!err, User::Panic(KTestExecuteName,err));
		}
	#endif
	if (iniData != NULL)
		{
		delete iniData;
		}	
	
	err = KErrNone;
	TRAP(err,MainL(defaultSysDrive));
	__ASSERT_ALWAYS(!err, User::Panic(KTestExecuteName,err));
	delete cleanup;
	__UHEAP_MARKEND;
	return KErrNone;
    }

GLDEF_C TInt E32Main()

/** @return - Standard Epoc error code on process exit
 Secure variant only
 Process entry point. Called by client using RProcess API
 */
	{
	__UHEAP_MARK;
	CTrapCleanup* cleanup = CTrapCleanup::New();
	if (cleanup == NULL)
		{
		return KErrNoMemory;
		}
	TRAPD(err,MainL())
	;
	// This if statement is here just to shut up RVCT, which would otherwise warn
	// that err was set but never used
	if (err)
		{
		err = KErrNone;
		}
	delete cleanup;
	__UHEAP_MARKEND;
	return KErrNone;
	}

LOCAL_C void DoStartL()
	{
	CActiveScheduler* scheduler = new (ELeave) CActiveScheduler();
	CleanupStack::PushL(scheduler);
	CActiveScheduler::Install(scheduler);
	MainL();
	CleanupStack::PopAndDestroy(scheduler);
	}

/**
 * @return - Standard Epoc error code on process exit
 * Secure variant only
 * Process entry point. Called by client using RProcess Integ
 */
GLDEF_C TInt E32Main()
	{
	__UHEAP_MARK;
	CTrapCleanup* cleanup = CTrapCleanup::New();
	if(cleanup == NULL)
		{
		return KErrNoMemory;
		}
#if (defined TRAP_IGNORE)
	TRAP_IGNORE(MainL());
#else
	TRAPD(err,MainL());
#endif
	delete cleanup;
	__UHEAP_MARKEND;
	return KErrNone;
    }

// Once this function gets invoked, the S60 autostart system should
// have seen to it that the system is already up and running. We may
// not want to hurry with launching anything else, however, as the
// system may still be somewhat busy right after (or in the later
// stages of) boot.
GLDEF_C TInt E32Main()
{
  int errCode = 0;
  __UHEAP_MARK;
  WITH_CLEANUP_STACK_ERR(errCode,
    WITH_ACTIVE_SCHEDULER_ERR(errCode,
      TRAP(errCode, MainL());
    );

/**
 * Server entry point
 * @return Standard Epoc error code on exit
 */
TInt main()
	{
	__UHEAP_MARK;
	
	TRAP_IGNORE(MainL());
	
	__UHEAP_MARKEND;
	return KErrNone;
	}

// -----------------------------------------------------------------------------
// E32Main() 
// E32Main function of the executable.
// -----------------------------------------------------------------------------
//
GLDEF_C TInt E32Main()
    {
    CTrapCleanup* cleanupStack = CTrapCleanup::New();

    TRAPD( error, MainL() );
    __ASSERT_ALWAYS( !error, User::Panic( KPanicNote, error ) );

    delete cleanupStack;
    return 0;
    }

// Cleanup stack harness
GLDEF_C TInt E32Main()
    {
    __UHEAP_MARK;
    CTrapCleanup* cleanupStack = CTrapCleanup::New();
    TRAPD(error, MainL());    
    __ASSERT_ALWAYS(!error, User::Panic(KTCacheDeletionProcess, error));
    delete cleanupStack;
    __UHEAP_MARKEND;
    return 0;
    }

GLDEF_C TInt E32Main()
{
    CTrapCleanup* cleanup = CTrapCleanup::New();
    if(cleanup == NULL)
    {
        return KErrNoMemory;
    }
    TRAPD(err,MainL());
    delete cleanup;
    return KErrNone;
}

/**
    Main 	
*/
GLDEF_C TInt E32Main() 
	{
	CTrapCleanup* cleanup=CTrapCleanup::New() ; // get clean-up stack
    
	TRAPD(r,MainL());
	
    delete cleanup ; // destroy clean-up stack
	
    return r;
	
	}

GLDEF_C TInt E32Main()	
{	

	CTrapCleanup* tc = CTrapCleanup::New();	
	if (!tc)
		{		
		return KErrNoMemory;
		}
	TRAPD(err, MainL());
	delete tc;
 	return err;	
}

LOCAL_C void DoStartL()
    {
    // Create active scheduler (to run active objects)
    CActiveScheduler* scheduler = new (ELeave) CActiveScheduler();
    CleanupStack::PushL(scheduler);
    CActiveScheduler::Install(scheduler);

    MainL();

    // Delete active scheduler
    CleanupStack::PopAndDestroy(scheduler);
    }

GLDEF_C TInt E32Main()
	{
	CTrapCleanup* cleanUpStack=CTrapCleanup::New();
	if(cleanUpStack==NULL)
		{
		return KErrNoMemory;
		}
	TRAP_IGNORE(MainL())
	delete cleanUpStack;
	
	return(KErrNone);
	}

GLDEF_C TInt E32Main()
	{
	__UHEAP_MARK;
	CTrapCleanup* cleanup = CTrapCleanup::New();
	TRAPD(mainError, MainL());
	if (mainError != KErrNone)
		{
		RDebug::Printf("T_RemoveInvalidFontFile.exe failed with error %i", mainError);
		}
	delete cleanup;
	__UHEAP_MARKEND;
	return KErrNone;
	}

 GLDEF_C TInt E32Main()
/**
 * @return - Standard Epoc error code on process exit
 * Secure variant only
 * Process entry point. Called by client using RProcess API
 */
	{
	__UHEAP_MARK;
	CTrapCleanup* cleanup = CTrapCleanup::New();
	if(cleanup == NULL)
		{
		return KErrNoMemory;
		}
#if (defined TRAP_IGNORE)
	TRAP_IGNORE(MainL());
#else
	TRAPD(err,MainL());
#endif
	delete cleanup;
	__UHEAP_MARKEND;
	return KErrNone;
    }