Moving out ./eo/src/mpi/ content -> ./eompi/src/

eompi/src/eoTerminateJob.h

@@ -0,0 +1,140 @@
+/*
+(c) Thales group, 2012
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation;
+    version 2 of the License.
+
+    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
+Contact: http://eodev.sourceforge.net
+
+Authors:
+    Benjamin Bouvier <benjamin.bouvier@gmail.com>
+*/
+# ifndef __EO_TERMINATE_H__
+# define __EO_TERMINATE_H__
+
+# include "eoMpi.h"
+
+namespace eo
+{
+    namespace mpi
+    {
+        /**
+         * @ingroup MPI
+         * @{
+         */
+
+        /**
+         * @brief Send task functor which does nothing.
+         */
+        struct DummySendTaskFunction : public SendTaskFunction<void>
+        {
+            void operator()( int _ )
+            {
+                ++_;
+            }
+        };
+
+        /**
+         * @brief Handle response functor which does nothing.
+         */
+        struct DummyHandleResponseFunction : public HandleResponseFunction<void>
+        {
+            void operator()( int _ )
+            {
+                ++_;
+            }
+        };
+
+        /**
+         * @brief Process task functor which does nothing.
+         */
+        struct DummyProcessTaskFunction : public ProcessTaskFunction<void>
+        {
+            void operator()()
+            {
+                // nothing!
+            }
+        };
+
+        /**
+         * @brief Is finished functor which returns true everytime.
+         */
+        struct DummyIsFinishedFunction : public IsFinishedFunction<void>
+        {
+            bool operator()()
+            {
+                return true;
+            }
+        };
+
+        /**
+         * @brief Job store containing all dummy functors and containing no data.
+         */
+        struct DummyJobStore : public JobStore<void>
+        {
+            using JobStore<void>::_stf;
+            using JobStore<void>::_hrf;
+            using JobStore<void>::_ptf;
+            using JobStore<void>::_iff;
+
+            DummyJobStore()
+            {
+                _stf = new DummySendTaskFunction;
+                _stf->needDelete( true );
+                _hrf = new DummyHandleResponseFunction;
+                _hrf->needDelete( true );
+                _ptf = new DummyProcessTaskFunction;
+                _ptf->needDelete( true );
+                _iff = new DummyIsFinishedFunction;
+                _iff->needDelete( true );
+            }
+
+            void* data() { return 0; }
+        };
+
+        /**
+         * @brief Job to run after a Multi Job, so as to indicate that every workers should terminate.
+         */
+        struct EmptyJob : public OneShotJob<void>
+        {
+            /**
+             * @brief Main EmptyJob ctor
+             *
+             * @param algo Assignment (scheduling) algorithm used.
+             * @param masterRank The rank of the master process.
+             */
+            EmptyJob( AssignmentAlgorithm& algo, int masterRank ) :
+                OneShotJob<void>( algo, masterRank, *(new DummyJobStore) )
+                // the job store is deleted on destructor
+            {
+                // empty
+            }
+
+            ~EmptyJob()
+            {
+                std::vector< int > idles = assignmentAlgo.idles();
+                for(unsigned i = 0, size = idles.size(); i < size; ++i)
+                {
+                    comm.send( idles[i], Channel::Commands, Message::Kill );
+                }
+                delete & this->store;
+            }
+        };
+
+        /**
+         * @}
+         */
+    }
+}
+
+# endif // __EO_TERMINATE_H__