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/* -*- 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) 2004-2005 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) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2018 Triad National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/info/info.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Info_dup = PMPI_Info_dup
#endif
#define MPI_Info_dup PMPI_Info_dup
#endif
static const char FUNC_NAME[] = "MPI_Info_dup";
/**
* MPI_Info_dup - Duplicate an 'MPI_Info' object
*
* @param info source info object (handle)
* @param newinfo pointer to the new info object (handle)
*
* @retval MPI_SUCCESS
* @retval MPI_ERR_INFO
* @retval MPI_ERR_NO_MEM
*
* Not only will the (key, value) pairs be duplicated, the order of keys
* will be the same in 'newinfo' as it is in 'info'.
* When an info object is no longer being used, it should be freed with
* 'MPI_Info_free'.
*/
int MPI_Info_dup(MPI_Info info, MPI_Info *newinfo) {
int err;
/**
* Here we need to do 2 things
* 1. Create a newinfo object using MPI_Info_create
* 2. Fetch all the values from info and copy them to
* newinfo using MPI_Info_set
* The new implementation facilitates traversal in many ways.
* I have chosen to get the number of elements on the list
* and copy them to newinfo one by one
*/
if (MPI_PARAM_CHECK) {
if (NULL == info || MPI_INFO_NULL == info || NULL == newinfo ||
ompi_info_is_freed(info)) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_INFO,
FUNC_NAME);
}
}
*newinfo = ompi_info_allocate();
if (NULL == *newinfo) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_NO_MEM,
FUNC_NAME);
}
/*
* Now to actually duplicate all the values
*/
err = ompi_info_dup (info, newinfo);
OMPI_ERRHANDLER_NOHANDLE_RETURN(err, err, FUNC_NAME);
}
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