INTEGRATION: CWS readstorage (1.1.2); FILE ADDED

2004/01/06 09:37:20 mav 1.1.2.1: #114521# a common header

1 files changed, 167 insertions, 0 deletions

diff --git a/package/inc/mutexholder.hxx b/package/inc/mutexholder.hxx
new file mode 100644
index 000000000000..37c680b14bf7
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+++ b/package/inc/mutexholder.hxx
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+/*************************************************************************
+ *
+ *  $RCSfile: mutexholder.hxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: hr $ $Date: 2004-02-03 17:49:00 $
+ *
+ *  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 __MUTEXHOLDER_HXX_
+#define __MUTEXHOLDER_HXX_
+
+#ifndef _OSL_MUTEX_HXX_
+#include <osl/mutex.hxx>
+#endif
+
+class SotMutexHolder
+{
+    ::osl::Mutex m_aMutex;
+    sal_Int32    m_nRefCount;
+
+    public:
+    SotMutexHolder() : m_nRefCount( 0 ) {}
+
+    void AddRef()
+    {
+        m_nRefCount++;
+    }
+
+    void ReleaseRef()
+    {
+        if ( !--m_nRefCount )
+            delete this;
+    }
+
+    ::osl::Mutex& GetMutex() { return m_aMutex; }
+};
+
+class SotMutexHolderRef
+{
+    SotMutexHolder* m_pHolder;
+
+public:
+    SotMutexHolderRef()
+    : m_pHolder( NULL )
+    {}
+
+    SotMutexHolderRef( SotMutexHolder* pHolder )
+    : m_pHolder( pHolder )
+    {
+        if ( m_pHolder )
+            m_pHolder->AddRef();
+    }
+
+    SotMutexHolderRef( const SotMutexHolderRef& rRef )
+    : m_pHolder( rRef.m_pHolder )
+    {
+        if ( m_pHolder )
+            m_pHolder->AddRef();
+    }
+
+    ~SotMutexHolderRef()
+    {
+        if ( m_pHolder )
+            m_pHolder->ReleaseRef();
+    }
+
+    SotMutexHolderRef& operator =( const SotMutexHolderRef& rRef )
+    {
+        if ( m_pHolder )
+            m_pHolder->ReleaseRef();
+
+        m_pHolder = rRef.m_pHolder;
+
+        if ( m_pHolder )
+            m_pHolder->AddRef();
+
+        return *this;
+    }
+
+    SotMutexHolderRef& operator =( SotMutexHolder* pHolder )
+    {
+        if ( m_pHolder )
+            m_pHolder->ReleaseRef();
+
+        m_pHolder = pHolder;
+
+        if ( m_pHolder )
+            m_pHolder->AddRef();
+        return *this;
+    }
+
+    SotMutexHolder* operator ->() const
+    {
+        return m_pHolder;
+    }
+
+    SotMutexHolder& operator *() const
+    {
+        return *m_pHolder;
+    }
+
+    operator SotMutexHolder*() const
+    {
+        return m_pHolder;
+    }
+
+    sal_Bool Is() const
+    {
+        return m_pHolder != NULL;
+    }
+};
+
+#endif
+