root/ompi/mpi/c/type_get_extent_x.c

DEFINITIONS

1. MPI_Type_get_extent_x

   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) 2004-2005 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) 2013      Los Alamos National Security, LLC. All rights
  13  *                         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 
  23 #include "ompi_config.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/datatype/ompi_datatype.h"
  30 #include "ompi/memchecker.h"
  31 
  32 #if OMPI_BUILD_MPI_PROFILING
  33 #if OPAL_HAVE_WEAK_SYMBOLS
  34 #pragma weak MPI_Type_get_extent_x = PMPI_Type_get_extent_x
  35 #endif
  36 #define MPI_Type_get_extent_x PMPI_Type_get_extent_x
  37 #endif
  38 
  39 static const char FUNC_NAME[] = "MPI_Type_get_extent_x";
  40 
  41 int MPI_Type_get_extent_x(MPI_Datatype type, MPI_Count *lb, MPI_Count *extent)
  42 {
  43   MPI_Aint alb, aextent;
  44   int rc;
  45 
  46   MEMCHECKER(
  47     memchecker_datatype(type);
  48   );
  49 
  50   if (MPI_PARAM_CHECK) {
  51     OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  52     if (NULL == type || MPI_DATATYPE_NULL == type) {
  53       return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_TYPE, FUNC_NAME);
  54     } else if (NULL == lb || NULL == extent) {
  55       return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG, FUNC_NAME);
  56     }
  57   }
  58 
  59   OPAL_CR_ENTER_LIBRARY();
  60 
  61   rc = ompi_datatype_get_extent( type, &alb, &aextent );
  62   if (OMPI_SUCCESS == rc) {
  63     *lb = (MPI_Count) alb;
  64     *extent = (MPI_Count) aextent;
  65   }
  66 
  67   OMPI_ERRHANDLER_RETURN(rc, MPI_COMM_WORLD, rc, FUNC_NAME );
  68 }