wait.c

MPI stands for the Message Passing Interface. Written by the MPI Forum (a large committee comprising

/*
 * Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
 *                         University Research and Technology
 *                         Corporation.  All rights reserved.
 * Copyright (c) 2004-2005 The University of Tennessee and The University
 *                         of Tennessee Research Foundation.  All rights
 *                         reserved.
 * Copyright (c) 2004-2006 High Performance Computing Center Stuttgart, 
 *                         University of Stuttgart.  All rights reserved.
 * Copyright (c) 2004-2005 The Regents of the University of California.
 *                         All rights reserved.
 * Copyright (c) 2006      Cisco Systems, Inc.  All rights reserved.
 * $COPYRIGHT$
 * 
 * Additional copyrights may follow
 * 
 * $HEADER$
 */
#include "ompi_config.h"
#include <stdio.h>

#include "ompi/mpi/c/bindings.h"
#include "ompi/mca/pml/pml.h"
#include "ompi/request/request.h"

#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Wait = PMPI_Wait
#endif

#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif

static const char FUNC_NAME[] = "MPI_Wait";


int MPI_Wait(MPI_Request *request, MPI_Status *status)
{
    if ( MPI_PARAM_CHECK ) {
        int rc = MPI_SUCCESS;
        OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
        if (request == NULL) {
            rc = MPI_ERR_REQUEST;
        }
        OMPI_ERRHANDLER_CHECK(rc, MPI_COMM_WORLD, rc, FUNC_NAME);
    }

    if (MPI_REQUEST_NULL == *request) {
        if (MPI_STATUS_IGNORE != status) {
            status->MPI_SOURCE = MPI_PROC_NULL;
            status->MPI_TAG = MPI_ANY_TAG;
            status->MPI_ERROR = MPI_SUCCESS;
            status->_count = 0;
            status->_cancelled = 0;
        }
        return MPI_SUCCESS;
    }

    if (OMPI_SUCCESS == ompi_request_wait(request, status)) {
        return MPI_SUCCESS;
    }
    return ompi_errhandler_request_invoke(1, request, FUNC_NAME);
}