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

#include "mpioimpl.h"
#include <string.h>

#ifdef HAVE_WEAK_SYMBOLS
/* Include mapping from MPI->PMPI */
#define MPIO_BUILD_PROFILING
#include "mpioprof.h"
#endif

extern int ADIO_Init_keyval;

/* common code to stuff an attribute on a communicator for the purpose of
 * cleaning up in MPI_Finalize() */

void MPIR_MPIOInit(int *error_code)
{

    int flag;
    char myname[] = "MPIR_MPIOInit";

    /* first check if ADIO has been initialized. If not, initialize it */
    if (ADIO_Init_keyval == MPI_KEYVAL_INVALID) {
        MPI_Initialized(&flag);

        /* --BEGIN ERROR HANDLING-- */
        if (!flag) {
            *error_code = MPIO_Err_create_code(MPI_SUCCESS,
                                               MPIR_ERR_RECOVERABLE, myname, __LINE__,
                                               MPI_ERR_OTHER, "**initialized", 0);
            *error_code = MPIO_Err_return_file(MPI_FILE_NULL, *error_code);
            return;
        }
        /* --END ERROR HANDLING-- */

        MPI_Keyval_create(MPI_NULL_COPY_FN, ADIOI_End_call, &ADIO_Init_keyval, (void *) 0);

        /* put a dummy attribute on MPI_COMM_SELF, because we want the delete
         * function to be called when MPI_COMM_SELF is freed. Clarified
         * in MPI-2 section 4.8, the standard mandates that attributes on
         * MPI_COMM_SELF get cleaned up early in MPI_Finalize */

        MPI_Attr_put(MPI_COMM_SELF, ADIO_Init_keyval, (void *) 0);

        /* initialize ADIO */
        ADIO_Init((int *) 0, (char ***) 0, error_code);
    }
    *error_code = MPI_SUCCESS;
}
