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openmpi/ompi/mpi/c/info_dup.c
Josh Hursey dadca7da88 Merging in the jjhursey-ft-cr-stable branch (r13912 : HEAD).
This merge adds Checkpoint/Restart support to Open MPI. The initial
frameworks and components support a LAM/MPI-like implementation.

This commit follows the risk assessment presented to the Open MPI core
development group on Feb. 22, 2007.

This commit closes trac:158

More details to follow.

This commit was SVN r14051.

The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
  r13912

The following Trac tickets were found above:
  Ticket 158 --> https://svn.open-mpi.org/trac/ompi/ticket/158
2007-03-16 23:11:45 +00:00

86 строки
2.6 KiB
C

/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/mpi/c/bindings.h"
#include "ompi/info/info.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Info_dup = PMPI_Info_dup
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#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;
OPAL_CR_TEST_CHECKPOINT_READY();
/**
* 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) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (NULL == info || MPI_INFO_NULL == info || NULL == newinfo ||
ompi_info_is_freed(info)) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_INFO,
FUNC_NAME);
}
}
*newinfo = OBJ_NEW(ompi_info_t);
if (NULL == *newinfo) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_NO_MEM,
FUNC_NAME);
}
/*
* Now to actually duplicate all the values
*/
err = ompi_info_dup (info, newinfo);
OMPI_ERRHANDLER_RETURN(err, MPI_COMM_WORLD, err, FUNC_NAME);
}