/* -*- Mode: c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
 *  (C) 2013 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */

/* Regression test for ticket #1785, contributed by Jed Brown.  The test was
 * hanging indefinitely under a buggy version of ch3:sock. */

#include <mpi.h>
#include <stdio.h>
#include <unistd.h>

int main(int argc, char *argv[])
{
    MPI_Request barrier;
    int rank, i, done;

    MPI_Init(&argc, &argv);
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Ibarrier(MPI_COMM_WORLD, &barrier);
    for (i = 0, done = 0; !done; i++) {
        usleep(1000);
        /*printf("[%d] MPI_Test: %d\n",rank,i); */
        MPI_Test(&barrier, &done, MPI_STATUS_IGNORE);
    }

    if (rank == 0)
        printf(" No Errors\n");

    MPI_Finalize();
    return 0;
}