/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */

/*

 *  (C) 2006 by Argonne National Laboratory.

 *      See COPYRIGHT in top-level directory.

 */

#include "mpi.h"

#include <stdio.h>

#include <stdlib.h>

#include "mpitest.h"

/*

static char MTEST_Descrip[] = "Test of sending to self (with a preposted receive)";

*/

int main(int argc, char *argv[])

{

    int errs = 0, err;

    int rank, size;

    int count;

    MPI_Comm comm;

    MPI_Request req;

    MTestDatatype sendtype, recvtype;

    MTest_Init(&argc, &argv);

    comm = MPI_COMM_WORLD;

    MPI_Comm_rank(comm, &rank;;

    MPI_Comm_size(comm, &size);

    /* To improve reporting of problems about operations, we

     * change the error handler to errors return */

    MPI_Comm_set_errhandler(comm, MPI_ERRORS_RETURN);

    MTEST_DATATYPE_FOR_EACH_COUNT(count) {

        while (MTestGetDatatypes(&sendtype, &recvtype, count)) {

            sendtype.InitBuf(&sendtype);

            recvtype.InitBuf(&recvtype);

            err = MPI_Irecv(recvtype.buf, recvtype.count, recvtype.datatype, rank, 0, comm, &req;;

            if (err) {

                errs++;

                if (errs < 10) {

                    MTestPrintError(err);

                }

            }

            err = MPI_Send(sendtype.buf, sendtype.count, sendtype.datatype, rank, 0, comm);

            if (err) {

                errs++;

                if (errs < 10) {

                    MTestPrintError(err);

                }

            }

            err = MPI_Wait(&req, MPI_STATUS_IGNORE);

            err = MTestCheckRecv(0, &recvtype);

            if (err) {

                if (errs < 10) {

                    printf

                        ("Data in target buffer did not match for destination datatype %s and source datatype %s, count = %d\n",

                         MTestGetDatatypeName(&recvtype), MTestGetDatatypeName(&sendtype), count);

                    recvtype.printErrors = 1;

                    (void) MTestCheckRecv(0, &recvtype);

                }

                errs += err;

            }

            err = MPI_Irecv(recvtype.buf, recvtype.count, recvtype.datatype, rank, 0, comm, &req;;

            if (err) {

                errs++;

                if (errs < 10) {

                    MTestPrintError(err);

                }

            }

            err = MPI_Ssend(sendtype.buf, sendtype.count, sendtype.datatype, rank, 0, comm);

            if (err) {

                errs++;

                if (errs < 10) {

                    MTestPrintError(err);

                }

            }

            err = MPI_Wait(&req, MPI_STATUS_IGNORE);

            err = MTestCheckRecv(0, &recvtype);

            if (err) {

                if (errs < 10) {

                    printf

                        ("Data in target buffer did not match for destination datatype %s and source datatype %s, count = %d\n",

                         MTestGetDatatypeName(&recvtype), MTestGetDatatypeName(&sendtype), count);

                    recvtype.printErrors = 1;

                    (void) MTestCheckRecv(0, &recvtype);

                }

                errs += err;

            }

            err = MPI_Irecv(recvtype.buf, recvtype.count, recvtype.datatype, rank, 0, comm, &req;;

            if (err) {

                errs++;

                if (errs < 10) {

                    MTestPrintError(err);

                }

            }

            err = MPI_Rsend(sendtype.buf, sendtype.count, sendtype.datatype, rank, 0, comm);

            if (err) {

                errs++;

                if (errs < 10) {

                    MTestPrintError(err);

                }

            }

            err = MPI_Wait(&req, MPI_STATUS_IGNORE);

            err = MTestCheckRecv(0, &recvtype);

            if (err) {

                if (errs < 10) {

                    printf

                        ("Data in target buffer did not match for destination datatype %s and source datatype %s, count = %d\n",

                         MTestGetDatatypeName(&recvtype), MTestGetDatatypeName(&sendtype), count);

                    recvtype.printErrors = 1;

                    (void) MTestCheckRecv(0, &recvtype);

                }

                errs += err;

            }

            MTestFreeDatatype(&sendtype);

            MTestFreeDatatype(&recvtype);

        }

    }

    MTest_Finalize(errs);

    MPI_Finalize();

    return 0;

}