openmpi/src/mpi/c/errhandler_f2c.c

/*
 * Copyright (c) 2004-2005 The Trustees of Indiana University.
 *                         All rights reserved.
 * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
 *                         All rights reserved.
 * $COPYRIGHT$
 * 
 * Additional copyrights may follow
 * 
 * $HEADER$
 */

#include "ompi_config.h"

#include "mpi.h"
#include "mpi/c/bindings.h"
#include "mpi/f77/fint_2_int.h"
#include "errhandler/errhandler.h"
#include "communicator/communicator.h"

#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Errhandler_f2c = PMPI_Errhandler_f2c
#endif

#if OMPI_PROFILING_DEFINES
#include "mpi/c/profile/defines.h"
#endif

static const char FUNC_NAME[] = "MPI_Errhandler_f2c";


MPI_Errhandler MPI_Errhandler_f2c(MPI_Fint errhandler_f)
{
    int eh_index = OMPI_FINT_2_INT(errhandler_f);

    /* Error checking */

    if (MPI_PARAM_CHECK) {
        OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
    }
        
    /* Per MPI-2:4.12.4, do not invoke an error handler if we get an
       invalid fortran handle */
    
    if (eh_index < 0 || 
        eh_index >= 
        ompi_pointer_array_get_size(ompi_errhandler_f_to_c_table)) {
        return MPI_ERRHANDLER_NULL;
    }

    return ompi_pointer_array_get_item(ompi_errhandler_f_to_c_table,
                                       eh_index);
}