--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cmmanager/cmmgr/cmmcommon/src/cmmclistatic.cpp	Tue Aug 31 15:35:44 2010 +0300
@@ -0,0 +1,129 @@
+/*
+* Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:
+* Launches the Connection Method Manager Server.
+*
+*/
+
+
+#include "cmmclistatic.h"
+
+/**
+ * LaunchServer
+ *
+ * Launches the CmManager server.
+ *
+ * Return KErrNone if CmManager server is launched successfully,
+ * otherwise one of the system wide error codes.
+ */
+TInt TCmManagerLauncher::LaunchServer(
+        const TDesC& aServerFileName,
+        const TUid& aServerUid3 )
+    {
+    RMutex mutex;
+    TInt err( KErrNone );
+    const TUidType serverUid( KNullUid, KNullUid, aServerUid3 );
+
+    //
+    // EPOC and EKA2 is easy, we just create a new server process. Simultaneous
+    // launching of two such processes should be detected when the second one
+    // attempts to create the server object, failing with KErrAlreadyExists.
+    //
+
+    // Try obtaining a lock. If that fails, server has already been started.
+    // If something fails with obtaining the lock, propagate the error to user.
+    if ( !ServerStartupLock( mutex, err ) )
+        {
+        ServerStartupUnlock( mutex );
+        return err;
+        }
+
+    RProcess server;
+    err = server.Create( aServerFileName, KNullDesC, serverUid );
+
+    if ( err != KErrNone )
+        {
+        ServerStartupUnlock( mutex );
+        return err;
+        }
+
+    TRequestStatus stat;
+    server.Rendezvous( stat );
+    if ( stat != KRequestPending )
+        {
+        server.Kill( 0 ); // Abort startup.
+        }
+    else
+        {
+        server.Resume(); // Logon OK - start the server.
+        }
+    User::WaitForRequest( stat ); // Wait for start or death.
+    // We can't use the 'exit reason' if the server panicked as this
+    // is the panic 'reason' and may be '0' which cannot be distinguished
+    // from KErrNone.
+    err = ( server.ExitType() == EExitPanic ) ? KErrGeneral : stat.Int();
+    server.Close();
+
+    ServerStartupUnlock( mutex );
+    return err;
+    }
+
+/**
+ * ServerStartupLock
+ *
+ * Returns true if obtains the lock without waiting. That is, the
+ * mutex is not created before this call.
+ *
+ * Return false if mutex is created.
+ */
+TBool TCmManagerLauncher::ServerStartupLock( RMutex& mutex, TInt& err )
+    {
+    TInt retval( ETrue );
+
+    // Create handle to mutex.
+    err = mutex.CreateGlobal( KCmManagerStartupMutex );
+    if ( err != KErrNone )
+        {
+        // Mutex already created, wait until done.
+        retval = EFalse;
+        err = mutex.OpenGlobal( KCmManagerStartupMutex );
+        if ( err == KErrNone )
+            {
+            // Wait for completion
+            mutex.Wait();
+            // Server already running, return.
+            return EFalse;
+            }
+        // Else opening failed, err will be propagated to user.
+        }
+    // Else Obtained lock without waiting (retval is ETrue).
+    // The next call completes instantly.
+    mutex.Wait();
+    return retval;
+    }
+
+/**
+ * ServerStartupUnlock
+ *
+ * Frees and closes the mutex.
+ */
+void TCmManagerLauncher::ServerStartupUnlock( RMutex& mutex )
+    {
+    // Let others run
+    mutex.Signal();
+    // Destroy handle
+    mutex.Close();
+    }
+
+// End of file