root/ompi/mpi/c/type_get_attr.c

DEFINITIONS

1. MPI_Type_get_attr

   1 /*
   2  * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
   3  *                         University Research and Technology
   4  *                         Corporation.  All rights reserved.
   5  * Copyright (c) 2004-2006 The University of Tennessee and The University
   6  *                         of Tennessee Research Foundation.  All rights
   7  *                         reserved.
   8  * Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
   9  *                         University of Stuttgart.  All rights reserved.
  10  * Copyright (c) 2004-2005 The Regents of the University of California.
  11  *                         All rights reserved.
  12  * Copyright (c) 2015      Research Organization for Information Science
  13  *                         and Technology (RIST). All rights reserved.
  14  * $COPYRIGHT$
  15  *
  16  * Additional copyrights may follow
  17  *
  18  * $HEADER$
  19  */
  20 
  21 #include "ompi_config.h"
  22 
  23 #include "ompi/mpi/c/bindings.h"
  24 #include "ompi/runtime/params.h"
  25 #include "ompi/communicator/communicator.h"
  26 #include "ompi/errhandler/errhandler.h"
  27 #include "ompi/attribute/attribute.h"
  28 #include "ompi/datatype/ompi_datatype.h"
  29 #include "ompi/memchecker.h"
  30 
  31 #if OMPI_BUILD_MPI_PROFILING
  32 #if OPAL_HAVE_WEAK_SYMBOLS
  33 #pragma weak MPI_Type_get_attr = PMPI_Type_get_attr
  34 #endif
  35 #define MPI_Type_get_attr PMPI_Type_get_attr
  36 #endif
  37 
  38 static const char FUNC_NAME[] = "MPI_Type_get_attr";
  39 
  40 
  41 int MPI_Type_get_attr (MPI_Datatype type,
  42                        int type_keyval,
  43                        void *attribute_val,
  44                        int *flag)
  45 {
  46     int ret;
  47 
  48     MEMCHECKER(
  49         memchecker_datatype(type);
  50     );
  51 
  52     if (MPI_PARAM_CHECK) {
  53         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  54         if (NULL == type || MPI_DATATYPE_NULL == type) {
  55             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_TYPE,
  56                                           FUNC_NAME );
  57         } else if ((NULL == attribute_val) || (NULL == flag)) {
  58             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD,
  59                                           MPI_ERR_ARG,
  60                                           FUNC_NAME);
  61         } else if (MPI_KEYVAL_INVALID == type_keyval) {
  62             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_KEYVAL,
  63                                           FUNC_NAME);
  64         }
  65     }
  66 
  67     OPAL_CR_ENTER_LIBRARY();
  68 
  69     /* This stuff is very confusing.  Be sure to see
  70        src/attribute/attribute.c for a lengthy comment explaining Open
  71        MPI attribute behavior. */
  72 
  73     ret = ompi_attr_get_c(type->d_keyhash, type_keyval,
  74                           (void**)attribute_val, flag);
  75     OMPI_ERRHANDLER_RETURN(ret, MPI_COMM_WORLD,
  76                            MPI_ERR_OTHER, FUNC_NAME);
  77 }