/*
 * Copyright (C) by Argonne National Laboratory
 *     See COPYRIGHT in top-level directory
 */

#include "mpi.h"
#include <stdio.h>
#include "mpitest.h"

/*
static char MTestDescrip[] = "Test creating and inserting attributes in \
different orders to ensure that the list management code handles all cases.";
*/

int checkAttrs(MPI_Comm comm, int n, int key[], int attrval[]);
int checkNoAttrs(MPI_Comm comm, int n, int key[]);

int main(int argc, char *argv[])
{
    int errs = 0;
    int key[3], attrval[3];
    int i;
    MPI_Comm comm;

    MTest_Init(&argc, &argv);

    {
        comm = MPI_COMM_WORLD;
        /* Create key values */
        for (i = 0; i < 3; i++) {
            MPI_Comm_create_keyval(MPI_NULL_COPY_FN, MPI_NULL_DELETE_FN, &key[i], (void *) 0);
            attrval[i] = 1024 * i;
        }

        /* Insert attribute in several orders.  Test after put with get,
         * then delete, then confirm delete with get. */

        MPI_Comm_set_attr(comm, key[2], &attrval[2]);
        MPI_Comm_set_attr(comm, key[1], &attrval[1]);
        MPI_Comm_set_attr(comm, key[0], &attrval[0]);

        errs += checkAttrs(comm, 3, key, attrval);

        MPI_Comm_delete_attr(comm, key[0]);
        MPI_Comm_delete_attr(comm, key[1]);
        MPI_Comm_delete_attr(comm, key[2]);

        errs += checkNoAttrs(comm, 3, key);

        MPI_Comm_set_attr(comm, key[1], &attrval[1]);
        MPI_Comm_set_attr(comm, key[2], &attrval[2]);
        MPI_Comm_set_attr(comm, key[0], &attrval[0]);

        errs += checkAttrs(comm, 3, key, attrval);

        MPI_Comm_delete_attr(comm, key[2]);
        MPI_Comm_delete_attr(comm, key[1]);
        MPI_Comm_delete_attr(comm, key[0]);

        errs += checkNoAttrs(comm, 3, key);

        MPI_Comm_set_attr(comm, key[0], &attrval[0]);
        MPI_Comm_set_attr(comm, key[1], &attrval[1]);
        MPI_Comm_set_attr(comm, key[2], &attrval[2]);

        errs += checkAttrs(comm, 3, key, attrval);

        MPI_Comm_delete_attr(comm, key[1]);
        MPI_Comm_delete_attr(comm, key[2]);
        MPI_Comm_delete_attr(comm, key[0]);

        errs += checkNoAttrs(comm, 3, key);

        for (i = 0; i < 3; i++) {
            MPI_Comm_free_keyval(&key[i]);
        }
    }

    MTest_Finalize(errs);
    return MTestReturnValue(errs);
}

int checkAttrs(MPI_Comm comm, int n, int key[], int attrval[])
{
    int errs = 0;
    int i, flag, *val_p;

    for (i = 0; i < n; i++) {
        MPI_Comm_get_attr(comm, key[i], &val_p, &flag);
        if (!flag) {
            errs++;
            fprintf(stderr, "Attribute for key %d not set\n", i);
        } else if (val_p != &attrval[i]) {
            errs++;
            fprintf(stderr, "Attribute value for key %d not correct\n", i);
        }
    }

    return errs;
}

int checkNoAttrs(MPI_Comm comm, int n, int key[])
{
    int errs = 0;
    int i, flag, *val_p;

    for (i = 0; i < n; i++) {
        MPI_Comm_get_attr(comm, key[i], &val_p, &flag);
        if (flag) {
            errs++;
            fprintf(stderr, "Attribute for key %d set but should be deleted\n", i);
        }
    }

    return errs;
}
