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/*
* 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/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/info/info.h"
#include <stdlib.h>
#include <string.h>
#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Info_get = PMPI_Info_get
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Info_get";
/**
* MPI_Info_get - Get a (key, value) pair from an 'MPI_Info' object
*
* @param info info object (handle)
* @param key null-terminated character string of the index key
* @param valuelen maximum length of 'value' (integer)
* @param value null-terminated character string of the value
* @param flag true (1) if 'key' defined on 'info', false (0) if not
* (logical)
*
* @retval MPI_SUCCESS
* @retval MPI_ERR_ARG
* @retval MPI_ERR_INFO
* @retval MPI_ERR_INFO_KEY
* @retval MPI_ERR_INFO_VALUE
*
* In C and C++, 'valuelen' should be one less than the allocated space
* to allow for for the null terminator.
*/
int MPI_Info_get(MPI_Info info, char *key, int valuelen,
char *value, int *flag)
{
int err;
int key_length;
/*
* Simple function. All we need to do is search for the value
* having the "key" associated with it and then populate the
* necessary structures.
*/
if (MPI_PARAM_CHECK) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (NULL == info || MPI_INFO_NULL == info ||
ompi_info_is_freed(info)) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_INFO,
FUNC_NAME);
}
if (0 > valuelen){
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
FUNC_NAME);
}
key_length = (key) ? (int)strlen (key) : 0;
if ((NULL == key) || (0 == key_length) ||
(MPI_MAX_INFO_KEY <= key_length)) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_INFO_KEY,
FUNC_NAME);
}
if (NULL == value) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_INFO_VALUE,
FUNC_NAME);
}
if (NULL == flag) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
FUNC_NAME);
}
}
OPAL_CR_ENTER_LIBRARY();
err = ompi_info_get (info, key, valuelen, value, flag);
OMPI_ERRHANDLER_RETURN(err, MPI_COMM_WORLD, err, FUNC_NAME);
}
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