root/ompi/mpi/c/comm_c2f.c

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DEFINITIONS

This source file includes following definitions.
  1. MPI_Comm_c2f

   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) 2006-2012 Cisco Systems, Inc.  All rights reserved.
  13  * Copyright (c) 2015      Research Organization for Information Science
  14  *                         and Technology (RIST). All rights reserved.
  15  * $COPYRIGHT$
  16  *
  17  * Additional copyrights may follow
  18  *
  19  * $HEADER$
  20  */
  21 #include "ompi_config.h"
  22 #include <stdio.h>
  23 
  24 #include "ompi/mpi/c/bindings.h"
  25 #include "ompi/runtime/params.h"
  26 #include "ompi/communicator/communicator.h"
  27 #include "ompi/errhandler/errhandler.h"
  28 #include "ompi/mpi/fortran/base/fint_2_int.h"
  29 #include "ompi/memchecker.h"
  30 
  31 #if OMPI_BUILD_MPI_PROFILING
  32 #if OPAL_HAVE_WEAK_SYMBOLS
  33 #pragma weak MPI_Comm_c2f = PMPI_Comm_c2f
  34 #endif
  35 #define MPI_Comm_c2f PMPI_Comm_c2f
  36 #endif
  37 
  38 static const char FUNC_NAME[] = "MPI_Comm_c2f";
  39 
  40 
  41 MPI_Fint MPI_Comm_c2f(MPI_Comm comm)
  42 {
  43     MEMCHECKER(
  44         memchecker_comm(comm);
  45     );
  46 
  47     OPAL_CR_NOOP_PROGRESS();
  48 
  49     if ( MPI_PARAM_CHECK) {
  50         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  51 
  52         /* Note that ompi_comm_invalid() explicitly checks for
  53            MPI_COMM_NULL, but MPI_COMM_C2F is supposed to treat
  54            MPI_COMM_NULL as a valid communicator (and therefore return
  55            a valid Fortran handle for it).  Hence, this function
  56            should not return an error if MPI_COMM_NULL is passed in.
  57 
  58            See a big comment in ompi/communicator/communicator.h about
  59            this. */
  60         if (ompi_comm_invalid (comm) && MPI_COMM_NULL != comm) {
  61             return OMPI_INT_2_FINT(-1);
  62         }
  63     }
  64 
  65     return OMPI_INT_2_FINT(comm->c_f_to_c_index);
  66 }

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