sysstatemgmt/systemstarter/amastartsrc/amastartsrv.cpp
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     1 // Copyright (c) 2007-2009 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 "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 /**
       
    17  @file
       
    18 */
       
    19 
       
    20 #include <e32debug.h>
       
    21 
       
    22 #include "amastartsrv.h"
       
    23 
       
    24 
       
    25 
       
    26 /**
       
    27  * Used to create a new CAmaStartServer
       
    28  * @return A pointer to the CAmaStartServer
       
    29  * @leave One of the system-wide error codes if construction fails.
       
    30  */
       
    31 EXPORT_C CAmaStartServer* CAmaStartServer::NewLC()
       
    32 	{
       
    33 	DEBUGPRINT1A( ">CAmaStartServer::NewLC" );
       
    34 	CAmaStartServer* self = new(ELeave) CAmaStartServer();	
       
    35 	CleanupStack::PushL( self );
       
    36 	self->ConstructL();
       
    37 	DEBUGPRINT1A( "CAmaStartServer::NewLC>" );
       
    38 	return self;	
       
    39 	}
       
    40 
       
    41 
       
    42 
       
    43 /**
       
    44  * Static function used to create and start CAmaStartServer
       
    45  * 
       
    46  * @return KErrAlreadyExists if the server is already running
       
    47  */
       
    48 EXPORT_C TInt CAmaStartServer::StartAmaStartSrv()
       
    49 	{
       
    50 	DEBUGPRINT1A( ">CAmaStartServer::StartAmaStartSrv" );
       
    51 	
       
    52 	const TInt KAmaStartSrvMinHeapSize = 0x2000;
       
    53 	const TInt KAmaStartSrvMaxHeapSize = 10 * KAmaStartSrvMinHeapSize;
       
    54 	RThread srvThread;
       
    55 
       
    56 	TInt err = srvThread.Create( KAmaStartSrvName, &CAmaStartServer::AmaStartSrvThreadFn, 
       
    57 								 KDefaultStackSize, KAmaStartSrvMinHeapSize, KAmaStartSrvMaxHeapSize, 
       
    58 								 NULL, EOwnerProcess );
       
    59 
       
    60 	if( KErrNone == err )
       
    61 		{
       
    62 		TRequestStatus trs;
       
    63 		srvThread.Rendezvous( trs );
       
    64 		if ( trs != KRequestPending)
       
    65 			{
       
    66 			srvThread.Kill(trs.Int());
       
    67 			srvThread.Close();
       
    68 			DEBUGPRINT1A( "CAmaStartServer::StartAmaStartSrv> (Not Request pending)" );
       
    69 			return trs.Int();
       
    70 			}
       
    71 		srvThread.Resume();
       
    72 		User::WaitForRequest( trs );
       
    73 		srvThread.Close();
       
    74 		err = trs.Int();
       
    75 		}
       
    76 
       
    77 	DEBUGPRINT1A( "CAmaStartServer::StartAmaStartSrv>" );
       
    78 	return err;
       
    79 	}
       
    80 
       
    81 
       
    82 
       
    83 CAmaStartServer::~CAmaStartServer()
       
    84 	{
       
    85 	DEBUGPRINT1A( ">CAmaStartServer::~CAmaStartServer" );
       
    86 	TInt i = 0;
       
    87 	TInt count = iSessionInfoArray.Count();
       
    88 	for(; i < count; i++ )
       
    89 		{
       
    90 		delete iSessionInfoArray[ i ].iStarter;
       
    91 		iSessionInfoArray[ i ].iStarter = NULL;
       
    92 		}
       
    93 	iSessionInfoArray.Close();
       
    94 	DEBUGPRINT1A( "CAmaStartServer::~CAmaStartServer>" );
       
    95 	}
       
    96 
       
    97 
       
    98 
       
    99 void CAmaStartServer::StartDscL( const TUid& aDscId, const RMessage2& aMessage, const TInt aSessionIndex )
       
   100 	{
       
   101 	DEBUGPRINT1A( ">CAmaStartServer::StartDscL" );
       
   102 	
       
   103 	if( !__IN_RANGE(aSessionIndex, iSessionInfoArray.Count()) )
       
   104 		{
       
   105 		User::Leave( KErrArgument );
       
   106 		}
       
   107 	iSessionInfoArray[ aSessionIndex ].iStarter = CAmaStartAsync::NewL( aMessage );
       
   108 	iSessionInfoArray[ aSessionIndex ].iMessagePtr = aMessage;
       
   109 	iSessionInfoArray[ aSessionIndex ].iStarter->StartL( aDscId );
       
   110 	
       
   111 	DEBUGPRINT1A( "CAmaStartServer::StartDscL>" );
       
   112 	}
       
   113 
       
   114 
       
   115 
       
   116 /**
       
   117  * Locate the CommandListExecutor associated with the session calling CommandListCancel.
       
   118  * Delete the Command list (which cancels its AO) then complete the client's RMessage with KErrCancel.
       
   119  */
       
   120 void CAmaStartServer::StartDscCancel( const TInt aSessionIndex )
       
   121 	{
       
   122 	DEBUGPRINT1A( ">CAmaStartServer::StartDscCancel" );
       
   123 	__ASSERT_DEBUG( __IN_RANGE( aSessionIndex, iSessionInfoArray.Count()), User::Panic( KAmaStartSrvBadIdx, KAmaStartSrvArrayIndexInvalid ) );
       
   124 
       
   125 	iSessionInfoArray[ aSessionIndex ].iStarter->Cancel();
       
   126 	
       
   127 	DEBUGPRINT1A( "CAmaStartServer::StartDscCancel>" );
       
   128 	}
       
   129 	
       
   130 
       
   131 
       
   132 /**
       
   133  * Iterate through iSessionInfoArray to find an unused array element
       
   134  * If found, use it. Otherwise, Append() a new TAmaStartSessionInfo.
       
   135  * Called during CSession construction.
       
   136  */
       
   137 void CAmaStartServer::RegisterSessionL( TInt& aSessionIndex )
       
   138 	{
       
   139 	DEBUGPRINT1A( ">CAmaStartServer::RegisterSessionL" );
       
   140 	
       
   141 	TInt i = 0;
       
   142 	TInt count = iSessionInfoArray.Count();
       
   143 	TBool slotFound = EFalse;
       
   144 	
       
   145 	for(; i < count; i++ )
       
   146 		{
       
   147 		if( iSessionInfoArray[ i ].iInUse )
       
   148 			{
       
   149 			continue;
       
   150 			}
       
   151 		else
       
   152 			{
       
   153 			iSessionInfoArray[ i ].iInUse = ETrue;
       
   154 			iSessionInfoArray[ i ].iStarter = NULL;
       
   155 			aSessionIndex = i;
       
   156 			slotFound = ETrue;
       
   157 			iSessionCount++;
       
   158 			break;
       
   159 			}
       
   160 		}
       
   161 	
       
   162 	if( !slotFound )
       
   163 		{
       
   164 		TAmaStartSessionInfo sessionInfo;
       
   165 		sessionInfo.iStarter = NULL;
       
   166 		sessionInfo.iInUse = ETrue;
       
   167 		iSessionInfoArray.AppendL( sessionInfo );
       
   168 		aSessionIndex = iSessionCount++;
       
   169 		}
       
   170 	
       
   171 	DEBUGPRINT2A( "Registered in slot %d", aSessionIndex );
       
   172 	DEBUGPRINT1A( "CAmaStartServer::RegisterSessionL>" );
       
   173 	}
       
   174 
       
   175 
       
   176 
       
   177 /**
       
   178  * Called from CSession destructor.
       
   179  */
       
   180 void CAmaStartServer::DeregisterSession( const TInt& aSessionIndex )
       
   181 	{
       
   182 	DEBUGPRINT1A( ">CAmaStartServer::DeregisterSession" );
       
   183 	__ASSERT_DEBUG( __IN_RANGE(aSessionIndex, iSessionInfoArray.Count()), User::Panic(KAmaStartSrvBadIdx, KAmaStartSrvArrayIndexInvalid) );
       
   184 	
       
   185 	if( iSessionInfoArray[ aSessionIndex ].iStarter )
       
   186 		{
       
   187 		delete iSessionInfoArray[ aSessionIndex ].iStarter;
       
   188 		iSessionInfoArray[ aSessionIndex ].iStarter = NULL;
       
   189 		}
       
   190 	iSessionInfoArray[ aSessionIndex ].iInUse = EFalse;
       
   191 	iSessionCount--;
       
   192 	
       
   193 	DEBUGPRINT2A( "De-registered slot %d", aSessionIndex );
       
   194 	DEBUGPRINT1A( "CAmaStartServer::DeregisterSession>" );
       
   195 	}
       
   196 
       
   197 
       
   198 
       
   199 /**
       
   200  * Used to create a new server-side session.
       
   201  * @return A pointer to the new instance of CSession2.
       
   202  * @leave KErrNotSupported if versions are incompatible.
       
   203  */
       
   204 EXPORT_C CSession2* CAmaStartServer::NewSessionL( const TVersion& aVersion, const RMessage2& /*aMessage*/ ) const
       
   205 	{
       
   206 	DEBUGPRINT1A( ">CAmaStartServer::NewSessionL" );
       
   207     CAmaStartServer& mutatedSelf = MUTABLE_CAST( CAmaStartServer&, *this );
       
   208 	if( !User::QueryVersionSupported(iVersion, aVersion) )
       
   209 		{
       
   210 		User::Leave( KErrNotSupported );
       
   211 		}
       
   212 	DEBUGPRINT1A( "CAmaStartServer::NewSessionL>" );
       
   213 	return CAmaStartSession::NewL( mutatedSelf ); 
       
   214 	}
       
   215 
       
   216 
       
   217 
       
   218 CAmaStartServer::CAmaStartServer()
       
   219 : CServer2( EPriorityHigh, EUnsharableSessions ),
       
   220   iVersion( KAmaStartSrvVersionMajor, KAmaStartSrvVersionMinor, KAmaStartSrvVersionBuild )
       
   221 	{
       
   222 	DEBUGPRINT1A( ">CAmaStartServer::CAmaStartServer> (Empty constructor)" );
       
   223 	}
       
   224 	
       
   225 	
       
   226 	
       
   227 void CAmaStartServer::ConstructL()
       
   228 	{
       
   229 	DEBUGPRINT1A( ">CAmaStartServer::ConstructL" );
       
   230 	StartL( KAmaStartSrvName );
       
   231 	// The starting thread is signalled in the thread function.
       
   232 	DEBUGPRINT1A( "CAmaStartServer::ConstructL>" );
       
   233 	}
       
   234 	
       
   235 
       
   236 // Static functions
       
   237 	
       
   238 TInt CAmaStartServer::AmaStartSrvThreadFn( TAny* /*aAny*/ )
       
   239 	{
       
   240 	DEBUGPRINT1A( ">CAmaStartServer::AmaStartSrvThreadFn" );
       
   241     CTrapCleanup* cleanup = CTrapCleanup::New();
       
   242     TRAPD( err, AmaStartSrvThreadRunL() ); 
       
   243     delete cleanup;
       
   244     DEBUGPRINT1A( "CAmaStartServer::AmaStartSrvThreadFn>" );
       
   245     return err;
       
   246 	}
       
   247 
       
   248 
       
   249 
       
   250 void CAmaStartServer::AmaStartSrvThreadRunL()
       
   251 	{
       
   252 	DEBUGPRINT1A( ">CAmaStartServer::AmaStartSrvThreadRunL" );
       
   253     CActiveScheduler* sched = new(ELeave) CActiveScheduler();
       
   254     CleanupStack::PushL( sched );
       
   255     CActiveScheduler::Install( sched );
       
   256     CAmaStartServer* amaStartSrv = CAmaStartServer::NewLC();
       
   257     RThread::Rendezvous( KErrNone );
       
   258     CActiveScheduler::Start();
       
   259 
       
   260     CleanupStack::PopAndDestroy( 2, sched );
       
   261     DEBUGPRINT1A( "CAmaStartServer::AmaStartSrvThreadRunL>" );
       
   262 	} //lint !e529 not subsequently referenced (amaStartSrv)