root/ompi/mpi/c/type_create_struct.c

DEFINITIONS

1. MPI_Type_create_struct

   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) 2004-2008 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) 2013      Los Alamos National Security, LLC.  All rights
  14  *                         reserved.
  15  * Copyright (c) 2015      Research Organization for Information Science
  16  *                         and Technology (RIST). All rights reserved.
  17  * $COPYRIGHT$
  18  *
  19  * Additional copyrights may follow
  20  *
  21  * $HEADER$
  22  */
  23 
  24 #include "ompi_config.h"
  25 
  26 #include "ompi/mpi/c/bindings.h"
  27 #include "ompi/runtime/params.h"
  28 #include "ompi/communicator/communicator.h"
  29 #include "ompi/errhandler/errhandler.h"
  30 #include "ompi/datatype/ompi_datatype.h"
  31 #include "ompi/memchecker.h"
  32 
  33 #if OMPI_BUILD_MPI_PROFILING
  34 #if OPAL_HAVE_WEAK_SYMBOLS
  35 #pragma weak MPI_Type_create_struct = PMPI_Type_create_struct
  36 #endif
  37 #define MPI_Type_create_struct PMPI_Type_create_struct
  38 #endif
  39 
  40 static const char FUNC_NAME[] = "MPI_Type_create_struct";
  41 
  42 
  43 int MPI_Type_create_struct(int count,
  44                            const int array_of_blocklengths[],
  45                            const MPI_Aint array_of_displacements[],
  46                            const MPI_Datatype array_of_types[],
  47                            MPI_Datatype *newtype)
  48 {
  49     int i, rc;
  50 
  51     if ( count > 0 ) {
  52         for ( i = 0; i < count; i++ ) {
  53             MEMCHECKER(
  54                 memchecker_datatype(array_of_types[i]);
  55                 );
  56         }
  57     }
  58 
  59     if( MPI_PARAM_CHECK ) {
  60         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  61         if( count < 0 ) {
  62             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COUNT,
  63                                           FUNC_NAME);
  64         } else if( (count > 0) && (NULL == array_of_blocklengths ||
  65                                    NULL == array_of_displacements ||
  66                                    NULL == array_of_types) ) {
  67             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG, FUNC_NAME);
  68         } else if (NULL == newtype) {
  69             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_TYPE, FUNC_NAME);
  70         }
  71         for ( i = 0; i < count; i++ ){
  72             if (NULL == array_of_types[i] ||
  73                 MPI_DATATYPE_NULL == array_of_types[i]) {
  74                 return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_TYPE,
  75                                               FUNC_NAME);
  76             } else if (array_of_blocklengths[i] < 0) {
  77                 return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
  78                                               FUNC_NAME);
  79             }
  80         }
  81     }
  82 
  83     OPAL_CR_ENTER_LIBRARY();
  84 
  85     rc = ompi_datatype_create_struct( count, array_of_blocklengths, array_of_displacements,
  86                                       array_of_types, newtype );
  87     if( rc != MPI_SUCCESS ) {
  88         ompi_datatype_destroy( newtype );
  89         OMPI_ERRHANDLER_RETURN( rc, MPI_COMM_WORLD,
  90                                 rc, FUNC_NAME );
  91     }
  92 
  93     {
  94         const int* a_i[2] = {&count, array_of_blocklengths};
  95 
  96         ompi_datatype_set_args( *newtype, count + 1, a_i, count, array_of_displacements,
  97                                 count, array_of_types, MPI_COMBINER_STRUCT );
  98     }
  99 
 100     OPAL_CR_EXIT_LIBRARY();
 101     return MPI_SUCCESS;
 102 }