openmpi/src/mpi/c/bsend_init.c

/*
 * $HEADER$
 */
#include "ompi_config.h"
#include <stdio.h>

#include "mpi.h"
#include "mpi/c/bindings.h"
#include "mca/pml/pml.h"
#include "mca/pml/base/pml_base_bsend.h"

#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Bsend_init = PMPI_Bsend_init
#endif

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

static const char FUNC_NAME[] = "MPI_Bsend_init";


int MPI_Bsend_init(void *buf, int count, MPI_Datatype type,
                   int dest, int tag, MPI_Comm comm, MPI_Request *request) 
{
    int rc;
    if (dest == MPI_PROC_NULL) {
        return MPI_SUCCESS;
    }
    
    if ( MPI_PARAM_CHECK ) {
        rc = MPI_SUCCESS;
        OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
        if (ompi_comm_invalid(comm)) {
            return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM, FUNC_NAME);
        } else if (count < 0) {
            rc = MPI_ERR_COUNT;
        } else if (type == MPI_DATATYPE_NULL) {
            rc = MPI_ERR_TYPE;
        } else if (tag < 0 || tag > MPI_TAG_UB_VALUE) {
            rc = MPI_ERR_TAG;
        } else if (ompi_comm_peer_invalid(comm, dest)) {
            rc = MPI_ERR_RANK;
        } else if (request == NULL) {
            rc = MPI_ERR_REQUEST;
        }
        OMPI_ERRHANDLER_CHECK(rc, comm, rc, FUNC_NAME);
    }

    rc = mca_pml.pml_isend_init(buf,count,type,dest,tag,MCA_PML_BASE_SEND_BUFFERED,comm,request);
    if(OMPI_SUCCESS != rc)
        goto error_return;

    rc = mca_pml_base_bsend_request_init(*request, true);
    if(OMPI_SUCCESS != rc)
        goto error_return;

error_return:
    OMPI_ERRHANDLER_RETURN(rc, comm, rc, FUNC_NAME);
}