text: /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
  /*
   * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
   *                         University Research and Technology
   *                         Corporation.  All rights reserved.
   * Copyright (c) 2004-2020 The University of Tennessee and The University
   *                         of Tennessee Research Foundation.  All rights
   *                         reserved.
   * Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
   *                         University of Stuttgart.  All rights reserved.
   * Copyright (c) 2004-2005 The Regents of the University of California.
   *                         All rights reserved.
   * Copyright (c) 2007-2009 Cisco Systems, Inc.  All rights reserved.
   * Copyright (c) 2015-2017 Research Organization for Information Science
   *                         and Technology (RIST). All rights reserved.
   * Copyright (c) 2016-2017 Los Alamos National Security, LLC. All rights
   *                         reserved.
   * $COPYRIGHT$
   *
   * Additional copyrights may follow
   *
   * $HEADER$
   */
  #include "ompi_config.h"
  #include <stdio.h>
  
  #include "ompi/mpi/c/bindings.h"
  #include "ompi/runtime/params.h"
  #include "ompi/communicator/communicator.h"
  #include "ompi/errhandler/errhandler.h"
  #include "ompi/memchecker.h"
  
  #if OMPI_BUILD_MPI_PROFILING
  #if OPAL_HAVE_WEAK_SYMBOLS
  #pragma weak MPI_Comm_get_errhandler = PMPI_Comm_get_errhandler
  #endif
  #define MPI_Comm_get_errhandler PMPI_Comm_get_errhandler
  #endif
  
  
  static const char FUNC_NAME[] = "MPI_Comm_get_errhandler";
  
  
  int MPI_Comm_get_errhandler(MPI_Comm comm, MPI_Errhandler *errhandler)
  {
      /* Error checking */
      MEMCHECKER(
          memchecker_comm(comm);
      );
  
      OPAL_CR_NOOP_PROGRESS();
  
      /* Error checking */
  
      if (MPI_PARAM_CHECK) {
        OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
        if (ompi_comm_invalid(comm)) {
          return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_COMM,
                                        FUNC_NAME);
        } else if (NULL == errhandler) {
          return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_ARG,
                                        FUNC_NAME);
        }
      }
  
      OPAL_THREAD_LOCK(&(comm->c_lock));
      /* Retain the errhandler, corresponding to object refcount decrease
         in errhandler_free.c. */
      OBJ_RETAIN(comm->error_handler);
      *errhandler = comm->error_handler;
      OPAL_THREAD_UNLOCK(&(comm->c_lock));
  
      /* All done */
  
      return MPI_SUCCESS;
  }
  