root/ompi/mpi/c/file_set_view.c

DEFINITIONS

1. MPI_File_set_view

   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) 2008      Sun Microsystems, Inc.  All rights reserved.
  14  * Copyright (c) 2013      Los Alamos National Security, LLC.  All rights
  15  *                         reserved.
  16  * Copyright (c) 2015-2018 Research Organization for Information Science
  17  *                         and Technology (RIST). All rights reserved.
  18  * Copyright (c) 2017      IBM Corporation. All rights reserved.
  19  * $COPYRIGHT$
  20  *
  21  * Additional copyrights may follow
  22  *
  23  * $HEADER$
  24  */
  25 
  26 #include "ompi_config.h"
  27 
  28 #include "ompi/mpi/c/bindings.h"
  29 #include "ompi/runtime/params.h"
  30 #include "ompi/errhandler/errhandler.h"
  31 #include "ompi/datatype/ompi_datatype.h"
  32 #include "ompi/info/info.h"
  33 #include "ompi/file/file.h"
  34 #include "ompi/memchecker.h"
  35 
  36 #if OMPI_BUILD_MPI_PROFILING
  37 #if OPAL_HAVE_WEAK_SYMBOLS
  38 #pragma weak MPI_File_set_view = PMPI_File_set_view
  39 #endif
  40 #define MPI_File_set_view PMPI_File_set_view
  41 #endif
  42 
  43 static const char FUNC_NAME[] = "MPI_File_set_view";
  44 
  45 
  46 int MPI_File_set_view(MPI_File fh, MPI_Offset disp, MPI_Datatype etype,
  47                       MPI_Datatype filetype, const char *datarep, MPI_Info info)
  48 {
  49     int rc;
  50 
  51     MEMCHECKER(
  52         memchecker_datatype(etype);
  53     );
  54 
  55     if (MPI_PARAM_CHECK) {
  56         rc = MPI_SUCCESS;
  57         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  58         if (ompi_file_invalid(fh)) {
  59             rc = MPI_ERR_FILE;
  60             fh = MPI_FILE_NULL;
  61         } else {
  62            OMPI_CHECK_DATATYPE_FOR_VIEW(rc, etype, 0);
  63            if (MPI_SUCCESS == rc) {
  64                OMPI_CHECK_DATATYPE_FOR_VIEW(rc, filetype, 0);
  65            }
  66         }
  67         if ( NULL == datarep) {
  68             rc = MPI_ERR_UNSUPPORTED_DATAREP;
  69             fh = MPI_FILE_NULL;            
  70         }
  71         OMPI_ERRHANDLER_CHECK(rc, fh, rc, FUNC_NAME);
  72     }
  73 
  74     OPAL_CR_ENTER_LIBRARY();
  75 
  76     /* Call the back-end io component function */
  77 
  78     switch (fh->f_io_version) {
  79     case MCA_IO_BASE_V_2_0_0:
  80         rc = fh->f_io_selected_module.v2_0_0.
  81           io_module_file_set_view(fh, disp, etype, filetype, datarep, &(info->super));
  82         break;
  83 
  84     default:
  85         rc = MPI_ERR_INTERN;
  86         break;
  87     }
  88 
  89     /* All done */
  90 
  91     OMPI_ERRHANDLER_RETURN(rc, fh, rc, FUNC_NAME);
  92 }