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

/*

 *

 *  (C) 2009 by Argonne National Laboratory.

 *      See COPYRIGHT in top-level directory.

 */

#include <mpi.h>

#include <stdlib.h>

#include <stdio.h>

#include "mpitest.h"

/* tests multiple invocations of MPI_Comm_free_keyval on the same keyval */

int delete_fn(MPI_Comm comm, int keyval, void *attr, void *extra);

int delete_fn(MPI_Comm comm, int keyval, void *attr, void *extra)

{

    MPI_Comm_free_keyval(&keyval);

    return MPI_SUCCESS;

}

int main(int argc, char **argv)

{

    MPI_Comm duped;

    int keyval = MPI_KEYVAL_INVALID;

    int keyval_copy = MPI_KEYVAL_INVALID;

    int errs = 0;

    MTest_Init(&argc, &argv);

    MPI_Comm_dup(MPI_COMM_SELF, &duped);

    MPI_Comm_create_keyval(MPI_NULL_COPY_FN, delete_fn, &keyval, NULL);

    keyval_copy = keyval;

    MPI_Comm_set_attr(MPI_COMM_SELF, keyval, NULL);

    MPI_Comm_set_attr(duped, keyval, NULL);

    MPI_Comm_free(&duped);      /* first MPI_Comm_free_keyval */

    MPI_Comm_free_keyval(&keyval);      /* second MPI_Comm_free_keyval */

    MPI_Comm_free_keyval(&keyval_copy); /* third MPI_Comm_free_keyval */

    MTest_Finalize(errs);

    return MTestReturnValue(errs);

}