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openmpi/ompi/communicator/comm_publish.c
Brian Barrett 84d1512fba Add the potential for doing some basic error checking on mutexes during
single threaded builds.  In its default configuration, all this does
is ensure that there's at least a good chance of threads building
based on non-threaded development (since the variable names will be
checked).  There is also code to make sure that a "mutex" is never
"double locked" when using the conditional macro mutex operations.
This is off by default because there are a number of places in both
ORTE and OMPI where this alarm spews mega bytes of errors on a
simple test.  So we have some work to do on our path towards
thread support.

Also removed the macro versions of the non-conditional thread locks,
as the only places they were used, the author of the code intended
to use the conditional thread locks.  So now you have upper-case
macros for conditional thread locks and lowercase functions for
non-conditional locks.  Simple, right? :).

This commit was SVN r15011.
2007-06-12 16:25:26 +00:00

172 строки
4.6 KiB
C

/*
* 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 (c) 2007 Cisco, Inc. 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"
static opal_mutex_t ompi_port_lock;
#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;
}