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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) 2013 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2015-2019 Intel, Inc. All rights reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2015-2018 Cisco Systems, Inc. All rights reserved
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "opal/class/opal_list.h"
#include "opal/mca/pmix/pmix-internal.h"
#include "opal/util/show_help.h"
#include "opal/util/string_copy.h"
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/info/info.h"
#include "ompi/communicator/communicator.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Lookup_name = PMPI_Lookup_name
#endif
#define MPI_Lookup_name PMPI_Lookup_name
#endif
static const char FUNC_NAME[] = "MPI_Lookup_name";
int MPI_Lookup_name(const char *service_name, MPI_Info info, char *port_name)
{
int flag=0, ret;
pmix_status_t rc;
pmix_pdata_t pdat;
pmix_info_t pinfo;
pmix_data_range_t rng;
if ( MPI_PARAM_CHECK ) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if ( NULL == port_name ) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_ARG,
FUNC_NAME);
}
if ( NULL == service_name ) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_ARG,
FUNC_NAME);
}
if (NULL == info || ompi_info_is_freed(info)) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_INFO,
FUNC_NAME);
}
}
/* OMPI supports info keys to pass the range to
* be searched for the given key */
if (MPI_INFO_NULL != info) {
opal_cstring_t *info_str;
ompi_info_get (info, "range", &info_str, &flag);
if (flag) {
if (0 == strcmp(info_str->string, "nspace")) {
rng = PMIX_RANGE_NAMESPACE; // share only with procs in same nspace
} else if (0 == strcmp(info_str->string, "session")) {
rng = PMIX_RANGE_SESSION; // share only with procs in same session
} else {
/* unrecognized scope */
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_ARG,
FUNC_NAME);
}
OBJ_RELEASE(info_str);
}
}
PMIX_INFO_LOAD(&pinfo, PMIX_RANGE, &rng, PMIX_DATA_RANGE);
/* collect the findings */
PMIX_PDATA_CONSTRUCT(&pdat);
PMIX_LOAD_KEY(pdat.key, service_name);
rc = PMIx_Lookup(&pdat, 1, &pinfo, 1);
PMIX_INFO_DESTRUCT(&pinfo);
if (PMIX_SUCCESS != rc ||
PMIX_STRING != pdat.value.type ||
NULL == pdat.value.data.string) {
if (PMIX_ERR_NOT_SUPPORTED == rc) {
ret = OMPI_ERR_NOT_SUPPORTED;
opal_show_help("help-mpi-api.txt",
"MPI function not supported",
true,
FUNC_NAME,
"Underlying runtime environment does not support name lookup functionality");
} else {
ret = MPI_ERR_NAME;
}
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(ret, FUNC_NAME);
}
opal_string_copy( port_name, pdat.value.data.string,
MPI_MAX_PORT_NAME );
PMIX_PDATA_DESTRUCT(&pdat);
return MPI_SUCCESS;
}
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