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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) 2004-2008 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) 2006-2015 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008 University of Houston, Inc. All rights reserved.
* Copyright (c) 2013 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2015 Intel, Inc. All rights reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "opal/util/show_help.h"
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/runtime/mpiruntime.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/info/info.h"
#include "ompi/dpm/dpm.h"
#include "ompi/memchecker.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Comm_accept = PMPI_Comm_accept
#endif
#define MPI_Comm_accept PMPI_Comm_accept
#endif
static const char FUNC_NAME[] = "MPI_Comm_accept";
int MPI_Comm_accept(const char *port_name, MPI_Info info, int root,
MPI_Comm comm, MPI_Comm *newcomm)
{
int rank, rc;
bool send_first=false; /* we receive first */
ompi_communicator_t *newcomp=MPI_COMM_NULL;
MEMCHECKER(
memchecker_comm(comm);
);
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);
}
if ( OMPI_COMM_IS_INTER(comm)) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COMM,
FUNC_NAME);
}
if ( (0 > root) || (ompi_comm_size(comm) <= root) ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
if ( NULL == newcomm ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
if (NULL == info || ompi_info_is_freed(info)) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_INFO,
FUNC_NAME);
}
}
rank = ompi_comm_rank ( comm );
if ( MPI_PARAM_CHECK ) {
if ( rank == root ) {
if ( NULL == port_name )
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
}
if (!ompi_mpi_dynamics_is_enabled(FUNC_NAME)) {
return OMPI_ERRHANDLER_INVOKE(comm, OMPI_ERR_NOT_SUPPORTED, FUNC_NAME);
}
/* parse info object. no prefedined values for this function in MPI-2
* so lets ignore it for the moment.
* if ( rank == root && MPI_INFO_NULL != info ) {
* }
*/
#if OPAL_ENABLE_FT_MPI
/*
* We must not call ompi_comm_iface_create_check() here, because that
* risks leaving the connect side dangling on an unmatched operation.
* We will let the connect_accept logic proceed and discover the
* issue internally so that all sides get informed.
*/
#endif
if ( rank == root ) {
rc = ompi_dpm_connect_accept (comm, root, port_name, send_first,
&newcomp);
}
else {
rc = ompi_dpm_connect_accept (comm, root, NULL, send_first,
&newcomp);
}
if (OPAL_ERR_NOT_SUPPORTED == rc) {
opal_show_help("help-mpi-api.txt",
"MPI function not supported",
true,
FUNC_NAME,
"Underlying runtime environment does not support accept/connect functionality");
}
*newcomm = newcomp;
OMPI_ERRHANDLER_RETURN(rc, comm, rc, FUNC_NAME );
}
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