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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 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 <string.h>
#include <stdio.h>
#include "ompi/communicator/communicator.h"
#include "ompi/proc/proc.h"
#include "ompi/constants.h"
#include "ompi/mca/pml/pml.h"
#include "orte/dss/dss.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/ns/ns.h"
#include "orte/mca/gpr/gpr.h"
#include "orte/mca/rml/rml_types.h"
#if OMPI_HAVE_THREAD_SUPPORT
static opal_mutex_t ompi_port_lock;
#endif /* OMPI_HAVE_THREAD_SUPPORT */
#define OMPI_COMM_PORT_KEY "ompi-port-name"
int ompi_open_port(char *port_name)
{
ompi_proc_t **myproc=NULL;
char *name=NULL;
size_t size=0;
orte_rml_tag_t lport_id=0;
int rc;
/*
* The port_name is equal to the OOB-contact information
* and an integer. The reason for adding the integer is
* to make the port unique for multi-threaded scenarios.
*/
myproc = ompi_proc_self (&size);
if (ORTE_SUCCESS != (rc = orte_ns.get_proc_name_string (&name, &(myproc[0]->proc_name)))) {
return rc;
}
OPAL_THREAD_LOCK(&ompi_port_lock);
if (ORTE_SUCCESS != (rc = orte_ns.assign_rml_tag(&lport_id, NULL))) {
OPAL_THREAD_UNLOCK(&ompi_port_lock);
return rc;
}
OPAL_THREAD_UNLOCK(&ompi_port_lock);
sprintf (port_name, "%s:%d", name, lport_id);
free ( myproc );
free ( name );
return OMPI_SUCCESS;
}
/* takes a port_name and separates it into the process_name
and the tag
*/
char *ompi_parse_port (char *port_name, orte_rml_tag_t *tag)
{
char tmp_port[MPI_MAX_PORT_NAME], *tmp_string;
tmp_string = (char *) malloc (MPI_MAX_PORT_NAME);
if (NULL == tmp_string ) {
return NULL;
}
strncpy (tmp_port, port_name, MPI_MAX_PORT_NAME);
strncpy (tmp_string, strtok(tmp_port, ":"), MPI_MAX_PORT_NAME);
sscanf( strtok(NULL, ":"),"%d", (int*)tag);
return tmp_string;
}
/*
* publish the port_name using the service_name as a token
* jobid and vpid are used later to make
* sure, that only this process can unpublish the information.
*/
int ompi_comm_namepublish ( char *service_name, char *port_name )
{
orte_gpr_value_t *value;
int rc;
if (ORTE_SUCCESS != (rc = orte_gpr.create_value(&value, ORTE_GPR_TOKENS_AND | ORTE_GPR_OVERWRITE,
OMPI_NAMESPACE_SEGMENT, 1, 1))) {
ORTE_ERROR_LOG(rc);
return rc;
}
value->tokens[0] = strdup(service_name);
if (ORTE_SUCCESS != (rc = orte_gpr.create_keyval(&(value->keyvals[0]), OMPI_COMM_PORT_KEY, ORTE_STRING, port_name))) {
ORTE_ERROR_LOG(rc);
OBJ_RELEASE(value);
return rc;
}
if (ORTE_SUCCESS != (rc = orte_gpr.put(1, &value))) {
ORTE_ERROR_LOG(rc);
}
OBJ_RELEASE(value);
return rc;
}
char* ompi_comm_namelookup ( char *service_name )
{
char *token[2], *key[2];
orte_gpr_keyval_t **keyvals=NULL;
orte_gpr_value_t **values;
orte_std_cntr_t cnt=0;
char *stmp=NULL;
int ret;
token[0] = service_name;
token[1] = NULL;
key[0] = strdup(OMPI_COMM_PORT_KEY);
key[1] = NULL;
ret = orte_gpr.get(ORTE_GPR_TOKENS_AND, OMPI_NAMESPACE_SEGMENT,
token, key, &cnt, &values);
if (ORTE_SUCCESS != ret) {
return NULL;
}
if ( 0 < cnt && NULL != values[0] ) { /* should be only one, if any */
keyvals = values[0]->keyvals;
stmp = strdup((const char*)keyvals[0]->value->data);
OBJ_RELEASE(values[0]);
}
return (stmp);
}
/*
* delete the entry. Just the process who has published
* the service_name, has the right to remove this
* service. Will be done later, by adding jobid and vpid
* as tokens
*/
int ompi_comm_nameunpublish ( char *service_name )
{
char *token[2];
token[0] = service_name;
token[1] = NULL;
#if 0
return orte_gpr.delete_entries(ORTE_GPR_TOKENS_AND,
OMPI_NAMESPACE_SEGMENT,
token, NULL);
#endif
return OMPI_SUCCESS;
}
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