root/ompi/mpi/c/comm_f2c.c

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DEFINITIONS

This source file includes following definitions.
  1. MPI_Comm_f2c

   1 /* -*- Mode: C; c-basic-offset:4 ; -*- */
   2 /*
   3  * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
   4  *                         University Research and Technology
   5  *                         Corporation.  All rights reserved.
   6  * Copyright (c) 2004-2007 The University of Tennessee and The University
   7  *                         of Tennessee Research Foundation.  All rights
   8  *                         reserved.
   9  * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
  10  *                         University of Stuttgart.  All rights reserved.
  11  * Copyright (c) 2004-2005 The Regents of the University of California.
  12  *                         All rights reserved.
  13  * Copyright (c) 2006-2012 Cisco Systems, Inc.  All rights reserved.
  14  * Copyright (c) 2015      Research Organization for Information Science
  15  *                         and Technology (RIST). All rights reserved.
  16  * $COPYRIGHT$
  17  *
  18  * Additional copyrights may follow
  19  *
  20  * $HEADER$
  21  */
  22 #include "ompi_config.h"
  23 #include <stdio.h>
  24 
  25 #include "ompi/mpi/c/bindings.h"
  26 #include "ompi/runtime/params.h"
  27 #include "ompi/communicator/communicator.h"
  28 #include "ompi/errhandler/errhandler.h"
  29 #include "ompi/mpi/fortran/base/fint_2_int.h"
  30 
  31 #if OMPI_BUILD_MPI_PROFILING
  32 #if OPAL_HAVE_WEAK_SYMBOLS
  33 #pragma weak MPI_Comm_f2c = PMPI_Comm_f2c
  34 #endif
  35 #define MPI_Comm_f2c PMPI_Comm_f2c
  36 #endif
  37 
  38 static const char FUNC_NAME[] = "MPI_Comm_f2c";
  39 
  40 
  41 MPI_Comm MPI_Comm_f2c(MPI_Fint comm)
  42 {
  43     int o_index= OMPI_FINT_2_INT(comm);
  44 
  45     OPAL_CR_NOOP_PROGRESS();
  46 
  47     if ( MPI_PARAM_CHECK ) {
  48         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  49     }
  50 
  51     /* Per MPI-2:4.12.4, do not invoke an error handler if we get an
  52        invalid fortran handle.  If we get an invalid fortran handle,
  53        return an invalid C handle. */
  54 
  55     if ( 0 > o_index ||
  56          o_index >= opal_pointer_array_get_size(&ompi_comm_f_to_c_table)) {
  57         return NULL;
  58     }
  59 
  60     return (MPI_Comm)opal_pointer_array_get_item(&ompi_comm_f_to_c_table, o_index);
  61 }

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