#85529# new threadsafe mechanism

1 files changed, 163 insertions, 0 deletions

diff --git a/framework/inc/threadhelp/transactionbase.hxx b/framework/inc/threadhelp/transactionbase.hxx
new file mode 100644
index 0000000000..faca3bffb1
--- /dev/null
+++ b/framework/inc/threadhelp/transactionbase.hxx
@@ -0,0 +1,163 @@
+/*************************************************************************
+ *
+ *  $RCSfile: transactionbase.hxx,v $
+ *
+ *  $Revision: 1.1 $
+ *
+ *  last change: $Author: as $ $Date: 2001-05-02 13:00:41 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (the "License"); You may not use this file
+ *  except in compliance with the License. You may obtain a copy of the
+ *  License at http://www.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#ifndef __FRAMEWORK_THREADHELP_TRANSACTIONBASE_H_
+#define __FRAMEWORK_THREADHELP_TRANSACTIONBASE_H_
+
+//_________________________________________________________________________________________________________________
+//	my own includes
+//_________________________________________________________________________________________________________________
+
+#ifndef __FRAMEWORK_THREADHELP_TRANSACTIONMANAGER_HXX_
+#include <threadhelp/transactionmanager.hxx>
+#endif
+
+//_________________________________________________________________________________________________________________
+//	interface includes
+//_________________________________________________________________________________________________________________
+
+//_________________________________________________________________________________________________________________
+//	other includes
+//_________________________________________________________________________________________________________________
+
+//_________________________________________________________________________________________________________________
+//	namespace
+//_________________________________________________________________________________________________________________
+
+namespace framework{
+
+//_________________________________________________________________________________________________________________
+//	const
+//_________________________________________________________________________________________________________________
+
+//_________________________________________________________________________________________________________________
+//	declarations
+//_________________________________________________________________________________________________________________
+
+/*-************************************************************************************************************//**
+    @short          make it possible to instanciate a transacion manager as first member!
+    @descr          If you use a transaction manager as a member of your class and whish to use it earlier then other ones
+                    you should have a look on this implementation. You must use it as the first base class
+                    of your implementation - because base classes are initialized by his order and before your
+                    member! Thats why ist a good place to declare this member.
+
+    @implements		-
+    @base			-
+
+    @devstatus		ready to use
+*//*-*************************************************************************************************************/
+struct TransactionBase
+{
+    //-------------------------------------------------------------------------------------------------------------
+    //	public Methods
+    //-------------------------------------------------------------------------------------------------------------
+    public:
+
+        /*-****************************************************************************************************//**
+            @short      return a reference to a static manager
+            @descr      Sometimes we need the global member! (e.g. in our own static methods)
+                        We create our own "class global static" member threadsafe.
+                        It will be created at first call only!
+                        All other requests use these created one then directly.
+
+            @seealso	-
+
+            @param		-
+            @return     A reference to a static member.
+
+            @onerror	No error should occure.
+        *//*-*****************************************************************************************************/
+
+        static TransactionManager& getGlobalTransactionManager()
+        {
+            // Initialize static member only for one time!
+            static TransactionManager* pManager = NULL;
+            // If these method first called (member not already exist!) ...
+            if( pManager == NULL )
+            {
+                // ... we must create a new one. Protect follow code with the global mutex -
+                // It must be - we create a static variable!
+                ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
+                // We must check our pointer again - because ... another instance of ouer class could be faster then these one!
+                if( pManager == NULL )
+                {
+                    // Create the new manager and set it for return on static variable.
+                    static TransactionManager aManager;
+                    pManager = &aManager;
+                }
+            }
+            // Return new created or already existing object.
+            return *pManager;
+        }
+
+    //-------------------------------------------------------------------------------------------------------------
+    //	public member
+    //-------------------------------------------------------------------------------------------------------------
+    public:
+
+        mutable TransactionManager    m_aTransactionManager    ;   /// "your" public manager-member!
+                                                                   /// Make it mutable for using in const functions!
+
+};      //  struct TransactionBase
+
+}		//	namespace framework
+
+#endif  //  #ifndef __FRAMEWORK_THREADHELP_TRANSACTIONBASE_H_