datacommsserver/esockserver/ssock/SS_MAIN.CPP
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     1 // Copyright (c) 1997-2009 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 #include <ss_std.h>
       
    17 #include <ss_glob.h>
       
    18 #include <comms-infras/ss_log.h>
       
    19 //#include <comms-infras/ss_thread.h>
       
    20 #include <comms-infras/ss_roles.h>
       
    21 #include <es_ini.h>
       
    22 #include <f32file.h>
       
    23 #include <commdb.h>
       
    24 #include <ss_subconnprov.h>
       
    25 #include <ss_protprov.h>
       
    26 #include <ss_connprov.h>
       
    27 #include <comms-infras/ss_metaconnprov.h>
       
    28 #include <comms-infras/ss_subconnflow.h>
       
    29 #ifdef SYMBIAN_ZERO_COPY_NETWORKING
       
    30 #include <comms-infras/commsbufpondop.h>
       
    31 #else
       
    32 #include <es_mbman.h>
       
    33 #endif // SYMBIAN_ZERO_COPY_NETWORKING
       
    34 
       
    35 
       
    36 using namespace Den;
       
    37 
       
    38 void SocketServer::InitL(CWorkerThread* aWorker)
       
    39 	{
       
    40 	if(aWorker->WorkerId() == TWorkerThreadPublicInfo::EMainThread)
       
    41 		{
       
    42 		// ESock Startup
       
    43 		// Check for the existence of ESock sub-directories
       
    44 
       
    45 		TAutoClose<RFs> fs;
       
    46 		User::LeaveIfError(fs.iObj.Connect());
       
    47 		fs.PushL();
       
    48 
       
    49 		// Create Private Path for ESock in system drive
       
    50 		TInt retCode = 0;
       
    51 		if(fs.iObj.CreatePrivatePath(RFs::GetSystemDrive()) != KErrNone)
       
    52 			{
       
    53 			// Error creating Private Path
       
    54 			User::Leave(retCode);
       
    55 			}
       
    56 
       
    57 		// Create ESock Directories in the system drive if they're not already there..
       
    58 		// We rely on undocumented behavior that the default path is on the system drive
       
    59 		retCode = fs.iObj.MkDirAll(KEsockIniFileDir);
       
    60 		if(retCode != KErrNone && retCode != KErrAlreadyExists)
       
    61 			{
       
    62 			// Error creating \esock Directory
       
    63 			User::Leave(retCode);
       
    64 			}
       
    65 
       
    66 		retCode = fs.iObj.MkDirAll(KEsockNoBackupDir);
       
    67 		if(retCode != KErrNone && retCode != KErrAlreadyExists)
       
    68 			{
       
    69 			// Error creating \nobackup directory
       
    70 			User::Leave(retCode);
       
    71 			}
       
    72 
       
    73 		fs.Pop();
       
    74 		}
       
    75 
       
    76 	LOG( ESockLog::Printf(_L("SocketServer::InitL() Done!")); )
       
    77 	}
       
    78 
       
    79 void SocketServer::ShutDown()
       
    80 /**
       
    81 free data structures and close the protocol manager
       
    82 */
       
    83 	{
       
    84 	// Mark ourself as on the way out
       
    85 	CSockManData* globals=SockManGlobals::Get();
       
    86 	LOG( ESockLog::Printf(_L("--------------- SocketServer W%d starting shutdown ---------------"), globals->iWorkerThread->WorkerId()) );
       
    87 
       
    88 	// The sub-connection and connection (specially) factories needs to be deleted
       
    89 	// before ShutdownExtensions() is called since connection factories may hold a
       
    90 	// valid NifSession ref which may become invalid if Nifman is unloaded through
       
    91 	// ShutdownExtensions()
       
    92 	//destroy factories before anything else gets destroyed
       
    93 	globals->UninstallFactoryContainers();
       
    94 
       
    95 	ShutdownExtensions(); // including Nifman
       
    96 
       
    97 	ProtocolManager::ShutDown();
       
    98 
       
    99 	__CFLOG_STMT(TInt id = globals->iWorkerThread->WorkerId());
       
   100 
       
   101 	__CFLOG_1(KESockComponentTag, KESockServerTag, _L8("SocketServer W%d: objects destroyed, waiting to drop Scheduler"), id);
       
   102 	}
       
   103 
       
   104 void SocketServer::ShutdownExtensions()
       
   105 /**
       
   106 Shutdown extention DLLs
       
   107 */
       
   108 	{
       
   109 	TDblQue<CSocketServExtRef>& list = SockManGlobals::Get()->iExtensions;
       
   110 	CSocketServExtRef *xref;
       
   111 	TDblQueIter<CSocketServExtRef> iter(list);
       
   112 	iter.SetToLast();
       
   113 	while (xref = iter--, xref!=NULL)
       
   114 		{
       
   115 		xref->Remove();
       
   116 		}
       
   117 
       
   118 	while (!list.IsEmpty())
       
   119 		{
       
   120 		xref = list.Last();
       
   121 		xref->Close();
       
   122 		delete xref;
       
   123 		}
       
   124 	}
       
   125 
       
   126 TBool SocketServer::IsShuttingDown()
       
   127 /**
       
   128 Used for Protocol shutdown to tell us whether protocols must be closed
       
   129 immediately.
       
   130 */
       
   131 	{
       
   132 	return (SockManGlobals::Get()->SelfWorker()->ShuttingDown());
       
   133 	}
       
   134 #ifdef SYMBIAN_ZERO_COPY_NETWORKING
       
   135 RCommsBufPond SocketServer::GetCommsBufPond()
       
   136 /**
       
   137 return context for the Mbuf manager.
       
   138 */
       
   139 	{
       
   140 	return TCommsBufPondTLSOp::Get();
       
   141 	}
       
   142 #else
       
   143 CMBufManager* SocketServer::GetMBufManager()
       
   144 /**
       
   145 return context for the Mbuf manager.
       
   146 */
       
   147   	{
       
   148     return CMBufManager::Context();
       
   149     }
       
   150 #endif
       
   151 
       
   152 CDeltaTimer* SocketServer::GetTimer()
       
   153 /**
       
   154 return context for the global timer.
       
   155 */
       
   156 	{
       
   157 	// PERF: doesn't appear to be used by us now? switched to just-in-time addition
       
   158 	CDeltaTimer* timer = SockManGlobals::Get()->iTimer;
       
   159 	if(!timer->IsAdded())
       
   160 		{
       
   161 		LOG( ESockLog::Printf(_L8("SocketServer::GetTimer() - adding upon first use")); )
       
   162 		CActiveScheduler::Add(timer);
       
   163 		}
       
   164 	return timer;
       
   165 	}
       
   166 
       
   167 CSocketServer* SocketServer::GetSocketServer()
       
   168 /**
       
   169 return context for the CServer
       
   170 
       
   171 */
       
   172 	{
       
   173 	return SockManGlobals::Get()->iSocketServer;
       
   174 	}
       
   175 
       
   176 #if defined(_DEBUG_SOCKET_FUNCTIONS)
       
   177 EXPORT_C void SocketServer::__DbgForceLoadMBufManagerL()
       
   178 /**
       
   179  Force loading the MBuf manager and, just in case it gets lonely, make a timer.
       
   180  DEPRECATED
       
   181 */
       
   182 	{
       
   183 	}
       
   184 
       
   185 EXPORT_C void SocketServer::__DbgForceKillMBufManager()
       
   186 /**
       
   187  Force unloading the MBuf manager
       
   188  DEPRECATED
       
   189 */
       
   190 	{
       
   191 	}
       
   192 #else
       
   193 EXPORT_C void SocketServer::__DbgForceLoadMBufManagerL()
       
   194 /**
       
   195 do nothing for UREL builds
       
   196 */
       
   197 	{
       
   198 	}
       
   199 
       
   200 EXPORT_C void SocketServer::__DbgForceKillMBufManager()
       
   201 /**
       
   202 do nothing for UREL builds
       
   203 */
       
   204 	{
       
   205 	}
       
   206 
       
   207 #endif
       
   208 
       
   209 void SocketServer::InstallExtensionL(const TDesC& aDllName, const TDesC& aArgs)
       
   210 /**
       
   211 Installs an Esock extension dll
       
   212 
       
   213 */
       
   214 	{
       
   215 	CSocketServExtRef* xr = new (ELeave) CSocketServExtRef;
       
   216 	CleanupStack::PushL(xr);
       
   217 	xr->InstallL(aDllName, aArgs);
       
   218 	CSockManData* globals = SockManGlobals::Get();
       
   219 	globals->iExtensions.AddLast(*xr);	//lint -e429	// extension list does have ownership
       
   220 	CleanupStack::Pop();
       
   221 	}
       
   222 
       
   223 void SocketServer::NewSession()
       
   224 /**
       
   225 Increment the session counter - if we were about to shutdown, stop.
       
   226 */
       
   227 	{
       
   228 	LOG( ESockLog::Printf(_L8("SocketServer::NewSession()")) );
       
   229 	}
       
   230 
       
   231 void SocketServer::SessionClosing()
       
   232 /**
       
   233 A session is closing, if it's the last one take our stumps home.
       
   234 */
       
   235 	{
       
   236 	LOG( ESockLog::Printf(_L8("SocketServer::SessionClosing()")) );
       
   237 	}