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+// (C) Copyright 2006 Douglas Gregor <doug.gregor -at- gmail.com>
+
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// Authors: Douglas Gregor
+
+/** @file communicator.cpp
+ *
+ * This file reflects the Boost.MPI @c communicator class into
+ * Python.
+ */
+#include <boost/python.hpp>
+#include <boost/mpi.hpp>
+#include <boost/mpi/python/serialize.hpp>
+#include "request_with_value.hpp"
+
+using namespace boost::python;
+using namespace boost::mpi;
+
+namespace boost { namespace mpi { namespace python {
+
+extern const char* communicator_docstring;
+extern const char* communicator_default_constructor_docstring;
+extern const char* communicator_rank_docstring;
+extern const char* communicator_size_docstring;
+extern const char* communicator_send_docstring;
+extern const char* communicator_recv_docstring;
+extern const char* communicator_isend_docstring;
+extern const char* communicator_irecv_docstring;
+extern const char* communicator_probe_docstring;
+extern const char* communicator_iprobe_docstring;
+extern const char* communicator_barrier_docstring;
+extern const char* communicator_split_docstring;
+extern const char* communicator_split_key_docstring;
+extern const char* communicator_abort_docstring;
+
+object
+communicator_recv(const communicator& comm, int source, int tag,
+ bool return_status)
+{
+ using boost::python::make_tuple;
+
+ object result;
+ status stat = comm.recv(source, tag, result);
+ if (return_status)
+ return make_tuple(result, stat);
+ else
+ return result;
+}
+
+request_with_value
+communicator_irecv(const communicator& comm, int source, int tag)
+{
+ boost::shared_ptr<object> result(new object());
+ request_with_value req(comm.irecv(source, tag, *result));
+ req.m_internal_value = result;
+ return req;
+}
+
+object
+communicator_iprobe(const communicator& comm, int source, int tag)
+{
+ if (boost::optional<status> result = comm.iprobe(source, tag))
+ return object(*result);
+ else
+ return object();
+}
+
+extern void export_skeleton_and_content(class_<communicator>&);
+
+void export_communicator()
+{
+ using boost::python::arg;
+ using boost::python::object;
+
+ class_<communicator> comm("Communicator", communicator_docstring);
+ comm
+ .def(init<>())
+ .add_property("rank", &communicator::rank, communicator_rank_docstring)
+ .add_property("size", &communicator::size, communicator_size_docstring)
+ .def("send",
+ (void (communicator::*)(int, int, const object&) const)
+ &communicator::send<object>,
+ (arg("dest"), arg("tag") = 0, arg("value") = object()),
+ communicator_send_docstring)
+ .def("recv", &communicator_recv,
+ (arg("source") = any_source, arg("tag") = any_tag,
+ arg("return_status") = false),
+ communicator_recv_docstring)
+ .def("isend",
+ (request (communicator::*)(int, int, const object&) const)
+ &communicator::isend<object>,
+ (arg("dest"), arg("tag") = 0, arg("value") = object()),
+ communicator_isend_docstring)
+ .def("irecv", &communicator_irecv,
+ (arg("source") = any_source, arg("tag") = any_tag),
+ communicator_irecv_docstring)
+ .def("probe", &communicator::probe,
+ (arg("source") = any_source, arg("tag") = any_tag),
+ communicator_probe_docstring)
+ .def("iprobe", &communicator_iprobe,
+ (arg("source") = any_source, arg("tag") = any_tag),
+ communicator_iprobe_docstring)
+ .def("barrier", &communicator::barrier, communicator_barrier_docstring)
+ .def("__nonzero__", &communicator::operator bool)
+ .def("split",
+ (communicator (communicator::*)(int) const)&communicator::split,
+ (arg("color")), communicator_split_docstring)
+ .def("split",
+ (communicator (communicator::*)(int, int) const)&communicator::split,
+ (arg("color"), arg("key")))
+ .def("abort", &communicator::abort, arg("errcode"),
+ communicator_abort_docstring)
+ ;
+
+ // Module-level attributes
+ scope().attr("any_source") = any_source;
+ scope().attr("any_tag") = any_tag;
+
+ {
+ communicator world;
+ scope().attr("world") = world;
+ scope().attr("rank") = world.rank();
+ scope().attr("size") = world.size();
+ }
+
+ // Export skeleton and content
+ export_skeleton_and_content(comm);
+}
+
+} } } // end namespace boost::mpi::python