When building a trivial request handler for C API interaction, export…

… the nested C request address.
boostorg · Oct 28, 2019 · a7379ac · a7379ac
1 parent 3614030
commit a7379ac
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Showing 3 changed files with 10 additions and 9 deletions.
diff --git a/include/boost/mpi/detail/request_handlers.hpp b/include/boost/mpi/detail/request_handlers.hpp
@@ -530,13 +530,6 @@ class request::dynamic_handler : public request::handler {
   MPI_Request      m_requests[2];
 };
 
-inline
-request request::make_trivial(MPI_Request const& r) {
-  trivial_handler *handler = new trivial_handler;
-  handler->m_request = r;
-  return request(handler);
-}
-
 template<typename T> 
 request request::make_serialized(communicator const& comm, int source, int tag, T& value) {
 #if defined(BOOST_MPI_USE_IMPROBE)

diff --git a/include/boost/mpi/request.hpp b/include/boost/mpi/request.hpp
@@ -39,9 +39,10 @@ class BOOST_MPI_DECL request
   request();
 
   /** 
-   * Just make a request from a C API request.
+   * Just make a request from a C API request and provide its address 
+   * for future assignement.
    */
-  static request make_trivial(MPI_Request const& r);
+  static request make_trivial(MPI_Request*& r);
   /**
    * Send a known number of primitive objects in one MPI request.
    */

diff --git a/src/request.cpp b/src/request.cpp
@@ -26,6 +26,13 @@ request::preserve(boost::shared_ptr<void> d) {
 }
 request request::make_dynamic() { return request(new dynamic_handler()); }
 
+request request::make_trivial(MPI_Request*& r) {
+  trivial_handler *handler = new trivial_handler;
+  r = &(handler->m_request);
+  return request(handler);
+}
+
+
 request
 request::make_bottom_send(communicator const& comm, int dest, int tag, MPI_Datatype tp) {
   trivial_handler* handler = new trivial_handler;