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

/*

 *  (C) 2009 UChicago/Argonne LLC

 *      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;

}

/*

 * vim: ts=8 sts=4 sw=4 noexpandtab

 */