1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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) 2004-2005 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) 2008 Cisco Systems, Inc. All rights reserved.
14 * Copyright (c) 2015-2017 Research Organization for Information Science
15 * and Technology (RIST). All rights reserved.
16 * Copyright (c) 2016-2017 Los Alamos National Security, LLC. All rights
17 * reserved.
18 * $COPYRIGHT$
19 *
20 * Additional copyrights may follow
21 *
22 * $HEADER$
23 */
24
25 #include "ompi_config.h"
26
27 #include "ompi/mpi/c/bindings.h"
28 #include "ompi/runtime/params.h"
29 #include "ompi/communicator/communicator.h"
30 #include "ompi/errhandler/errhandler.h"
31 #include "ompi/file/file.h"
32
33 #if OMPI_BUILD_MPI_PROFILING
34 #if OPAL_HAVE_WEAK_SYMBOLS
35 #pragma weak MPI_File_get_errhandler = PMPI_File_get_errhandler
36 #endif
37 #define MPI_File_get_errhandler PMPI_File_get_errhandler
38 #endif
39
40 static const char FUNC_NAME[] = "MPI_File_get_errhandler";
41
42
43 int MPI_File_get_errhandler( MPI_File file, MPI_Errhandler *errhandler)
44 {
45 OPAL_CR_NOOP_PROGRESS();
46
47 /* Error checking */
48
49 if (MPI_PARAM_CHECK) {
50 OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
51
52 /* Note that MPI-2:9.7 (p265 in the ps; 261 in the pdf) explicitly
53 says that you are allowed to set the error handler on
54 MPI_FILE_NULL */
55
56 if (NULL == file) {
57 return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_FILE,
58 "MPI_File_get_errhandler");
59 } else if (NULL == errhandler) {
60 return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
61 "MPI_File_get_errhandler");
62 }
63 }
64
65 OPAL_THREAD_LOCK(&file->f_lock);
66 /* Retain the errhandler, corresponding to object refcount
67 decrease in errhandler_free.c. */
68 *errhandler = file->error_handler;
69 OBJ_RETAIN(file->error_handler);
70 OPAL_THREAD_UNLOCK(&file->f_lock);
71
72 /* All done */
73
74 return MPI_SUCCESS;
75 }