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 }