root/ompi/mpi/c/file_iwrite_at_all.c

DEFINITIONS

1. MPI_File_iwrite_at_all

   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      University of Houston.  All rights reserved.
  17  * Copyright (c) 2015      Research Organization for Information Science
  18  *                         and Technology (RIST). All rights reserved.
  19  * Copyright (c) 2017      IBM Corporation.  All rights reserved.
  20  * $COPYRIGHT$
  21  *
  22  * Additional copyrights may follow
  23  *
  24  * $HEADER$
  25  */
  26 
  27 #include "ompi_config.h"
  28 
  29 #include "ompi/mpi/c/bindings.h"
  30 #include "ompi/runtime/params.h"
  31 #include "ompi/errhandler/errhandler.h"
  32 #include "ompi/datatype/ompi_datatype.h"
  33 #include "ompi/file/file.h"
  34 #include "ompi/mca/io/io.h"
  35 #include "ompi/mca/io/base/io_base_request.h"
  36 #include "ompi/memchecker.h"
  37 
  38 #if OMPI_BUILD_MPI_PROFILING
  39 #if OPAL_HAVE_WEAK_SYMBOLS
  40 #pragma weak MPI_File_iwrite_at_all = PMPI_File_iwrite_at_all
  41 #endif
  42 #define MPI_File_iwrite_at_all PMPI_File_iwrite_at_all
  43 #endif
  44 
  45 static const char FUNC_NAME[] = "MPI_File_iwrite_at_all";
  46 
  47 
  48 int MPI_File_iwrite_at_all(MPI_File fh, MPI_Offset offset, const void *buf,
  49                            int count, MPI_Datatype datatype,
  50                            MPI_Request *request)
  51 {
  52     int rc;
  53 
  54     MEMCHECKER(
  55         memchecker_datatype(datatype);
  56         memchecker_call(&opal_memchecker_base_isdefined, buf, count, datatype);
  57     );
  58 
  59     if (MPI_PARAM_CHECK) {
  60         rc = MPI_SUCCESS;
  61         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  62         if (ompi_file_invalid(fh)) {
  63             fh = MPI_FILE_NULL;
  64             rc = MPI_ERR_FILE;
  65         } else if (count < 0) {
  66             rc = MPI_ERR_COUNT;
  67         } else if (NULL == request) {
  68             rc = MPI_ERR_REQUEST;
  69         } else {
  70            OMPI_CHECK_DATATYPE_FOR_SEND(rc, datatype, count);
  71         }
  72         OMPI_ERRHANDLER_CHECK(rc, fh, rc, FUNC_NAME);
  73     }
  74 
  75     OPAL_CR_ENTER_LIBRARY();
  76 
  77     /* Call the back-end io component function */
  78     switch (fh->f_io_version) {
  79     case MCA_IO_BASE_V_2_0_0:
  80         if( OPAL_UNLIKELY(NULL == fh->f_io_selected_module.v2_0_0.io_module_file_iwrite_at_all) ) {
  81             rc = MPI_ERR_UNSUPPORTED_OPERATION;
  82         }
  83         else {
  84             rc = fh->f_io_selected_module.v2_0_0.
  85                 io_module_file_iwrite_at_all(fh, offset, buf, count, datatype,
  86                                              request);
  87         }
  88         break;
  89 
  90     default:
  91         rc = MPI_ERR_INTERN;
  92         break;
  93     }
  94 
  95     /* All done */
  96 
  97     OMPI_ERRHANDLER_RETURN(rc, fh, rc, FUNC_NAME);
  98 }