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

/*

 *

 *  (C) 2001 by Argonne National Laboratory.

 *      See COPYRIGHT in top-level directory.

 */

#include <stdio.h>

#include "mpi.h"

#include "mpitest.h"

int main(int argc, char **argv)

{

    int errs = 0;

    void *v;

    int flag;

    int rank, size;

    int base[1024];

    MPI_Aint n;

    int disp;

    MPI_Win win;

    MTest_Init(&argc, &argv);

    MPI_Comm_size(MPI_COMM_WORLD, &size);

    MPI_Comm_rank(MPI_COMM_WORLD, &rank;;

    /* Create a window; then extract the values */

    n = 1024;

    disp = 4;

    MPI_Win_create(base, n, disp, MPI_INFO_NULL, MPI_COMM_WORLD, &win);

    MPI_Win_get_attr(win, MPI_WIN_BASE, &v, &flag;;

    if (!flag) {

        errs++;

        fprintf(stderr, "Could not get WIN_BASE\n");

    }

    else {

        /* MPI 2.1, section 11.2.2.  v must be a pointer to the start of the

         * window.  It is not a pointer to a pointer to the start of the window.

         */

        if ((int *) v != base) {

            errs++;

            fprintf(stderr, "Got incorrect value for WIN_BASE (%p, should be %p)", v, base);

        }

    }

    MPI_Win_get_attr(win, MPI_WIN_SIZE, &v, &flag;;

    if (!flag) {

        errs++;

        fprintf(stderr, "Could not get WIN_SIZE\n");

    }

    else {

        MPI_Aint vval = *(MPI_Aint *) v;

        if (vval != n) {

            errs++;

            fprintf(stderr, "Got wrong value for WIN_SIZE (%ld, should be %ld)\n",

                    (long) vval, (long) n);

        }

    }

    MPI_Win_get_attr(win, MPI_WIN_DISP_UNIT, &v, &flag;;

    if (!flag) {

        errs++;

        fprintf(stderr, "Could not get WIN_DISP_UNIT\n");

    }

    else {

        int vval = *(int *) v;

        if (vval != disp) {

            errs++;

            fprintf(stderr, "Got wrong value for WIN_DISP_UNIT (%d, should be %d)\n", vval, disp);

        }

    }

    MPI_Win_free(&win);

    MTest_Finalize(errs);

    MPI_Finalize();

    return 0;

}