1 files changed, 191 insertions, 0 deletions
diff --git a/cppu/source/threadpool/jobqueue.cxx b/cppu/source/threadpool/jobqueue.cxx
new file mode 100644
index 000000000000..2604af98dee4
--- /dev/null
+++ b/cppu/source/threadpool/jobqueue.cxx
@@ -0,0 +1,191 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_cppu.hxx"
+#include "jobqueue.hxx"
+#include "threadpool.hxx"
+
+#include <osl/diagnose.h>
+
+using namespace ::osl;
+
+namespace cppu_threadpool {
+
+    JobQueue::JobQueue() :
+        m_nToDo( 0 ),
+        m_bSuspended( sal_False ),
+        m_cndWait( osl_createCondition() )
+    {
+        osl_resetCondition( m_cndWait );
+    }
+
+    JobQueue::~JobQueue()
+    {
+        osl_destroyCondition( m_cndWait );
+    }
+
+
+    void JobQueue::add( void *pThreadSpecificData, RequestFun * doRequest )
+    {
+        MutexGuard guard( m_mutex );
+        Job job = { pThreadSpecificData , doRequest };
+        m_lstJob.push_back( job );
+        if( ! m_bSuspended )
+        {
+            osl_setCondition( m_cndWait );
+        }
+        m_nToDo ++;
+    }
+
+    void *JobQueue::enter( sal_Int64 nDisposeId , sal_Bool bReturnWhenNoJob )
+    {
+        void *pReturn = 0;
+        {
+            // synchronize with the dispose calls
+            MutexGuard guard( m_mutex );
+            if( DisposedCallerAdmin::getInstance()->isDisposed( nDisposeId ) )
+            {
+                return 0;
+            }
+            m_lstCallstack.push_front( nDisposeId );
+        }
+
+
+        while( sal_True )
+        {
+            if( bReturnWhenNoJob )
+            {
+                MutexGuard guard( m_mutex );
+                if( m_lstJob.empty() )
+                {
+                    break;
+                }
+            }
+
+            osl_waitCondition( m_cndWait , 0 );
+
+            struct Job job={0,0};
+            {
+                // synchronize with add and dispose calls
+                MutexGuard guard( m_mutex );
+
+                if( 0 == m_lstCallstack.front() )
+                {
+                    // disposed !
+                    break;
+                }
+
+                OSL_ASSERT( ! m_lstJob.empty() );
+                if( ! m_lstJob.empty() )
+                {
+                    job = m_lstJob.front();
+                    m_lstJob.pop_front();
+                }
+                if( m_lstJob.empty() )
+                {
+                    osl_resetCondition( m_cndWait );
+                }
+            }
+
+            if( job.doRequest )
+            {
+                job.doRequest( job.pThreadSpecificData );
+                m_nToDo --;
+            }
+            else
+            {
+                m_nToDo --;
+                pReturn = job.pThreadSpecificData;
+                break;
+            }
+        }
+
+        {
+            // synchronize with the dispose calls
+            MutexGuard guard( m_mutex );
+            m_lstCallstack.pop_front();
+        }
+
+        return pReturn;
+    }
+
+    void JobQueue::dispose( sal_Int64 nDisposeId )
+    {
+        MutexGuard guard( m_mutex );
+        for( CallStackList::iterator ii = m_lstCallstack.begin() ;
+             ii != m_lstCallstack.end() ;
+             ++ii )
+        {
+            if( (*ii) == nDisposeId )
+            {
+                (*ii) = 0;
+            }
+        }
+
+        if( !m_lstCallstack.empty()  && ! m_lstCallstack.front() )
+        {
+            // The thread is waiting for a disposed pCallerId, let it go
+            osl_setCondition( m_cndWait );
+        }
+    }
+
+    void JobQueue::suspend()
+    {
+        MutexGuard guard( m_mutex );
+        m_bSuspended = sal_True;
+    }
+
+    void JobQueue::resume()
+    {
+        MutexGuard guard( m_mutex );
+        m_bSuspended = sal_False;
+        if( ! m_lstJob.empty() )
+        {
+            osl_setCondition( m_cndWait );
+        }
+    }
+
+    sal_Bool JobQueue::isEmpty()
+    {
+        MutexGuard guard( m_mutex );
+        return m_lstJob.empty();
+    }
+
+    sal_Bool JobQueue::isCallstackEmpty()
+    {
+        MutexGuard guard( m_mutex );
+        return m_lstCallstack.empty();
+    }
+
+    sal_Bool JobQueue::isBusy()
+    {
+        return m_nToDo > 0;
+    }
+
+
+}