Request.cpp

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//
// Class Request
//   A communication request handle for non-blocking communication.
//
#include "Communicate/Request.h"
 
namespace ippl {
    namespace mpi {
 
        Request::~Request() {
            if (request_m != MPI_REQUEST_NULL) {
                this->free();
            }
        }
 
        bool Request::completed() {
            int flag = 0;
 
            Status status;
 
            // MPI_STATUS_IGNORE
            MPI_Request_get_status(request_m, &flag, status);
 
            if (flag != 0) {
                // valid Status instance
                MPI_Test(&request_m, &flag, status);
            } else {
                // Although we free the request, any ongoing communication
                // associated with this request is allowed to complete.
                this->free();
            }
 
            return (flag != 0);
        }
    }  // namespace mpi
}  // namespace ippl