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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) 2004-2008 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 Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "orte_config.h"
#include "orte/constants.h"
#include "orte/types.h"
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include "opal/mca/base/mca_base_param.h"
#include "opal/util/output.h"
#include "opal/class/opal_pointer_array.h"
#include "opal/dss/dss.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/rml/rml.h"
#include "orte/runtime/orte_globals.h"
#include "orte/util/name_fns.h"
#include "orte/runtime/orte_wait.h"
#include "orte/runtime/orte_data_server.h"
/* define an object to hold data */
typedef struct {
/* base object */
opal_object_t super;
/* index of this object in the storage array */
orte_std_cntr_t index;
/* process that owns this data - only the
* owner can remove it
*/
orte_process_name_t owner;
/* service name */
char *service;
/* port */
char *port;
} orte_data_object_t;
static void construct(orte_data_object_t *ptr)
{
ptr->index = -1;
ptr->service = NULL;
ptr->port = NULL;
}
static void destruct(orte_data_object_t *ptr)
{
if (NULL != ptr->service) free(ptr->service);
if (NULL != ptr->port) free(ptr->port);
}
OBJ_CLASS_INSTANCE(orte_data_object_t,
opal_object_t,
construct, destruct);
/* local globals */
static opal_pointer_array_t *orte_data_server_store=NULL;
static bool recv_issued=false;
int orte_data_server_init(void)
{
int rc;
orte_data_server_store = OBJ_NEW(opal_pointer_array_t);
if (ORTE_SUCCESS != (rc = opal_pointer_array_init(orte_data_server_store,
1,
INT_MAX,
1))) {
ORTE_ERROR_LOG(rc);
return rc;
}
if (!recv_issued) {
if (ORTE_SUCCESS != (rc = orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_DATA_SERVER,
ORTE_RML_NON_PERSISTENT,
orte_data_server,
NULL))) {
ORTE_ERROR_LOG(rc);
}
recv_issued = true;
}
return ORTE_SUCCESS;
}
void orte_data_server_finalize(void)
{
orte_std_cntr_t i;
orte_data_object_t **data;
int rc;
if (NULL != orte_data_server_store) {
data = (orte_data_object_t**)orte_data_server_store->addr;
for (i=0; i < orte_data_server_store->size; i++) {
if (NULL != data[i]) OBJ_RELEASE(data[i]);
}
OBJ_RELEASE(orte_data_server_store);
}
if (recv_issued) {
if (ORTE_SUCCESS != (rc = orte_rml.recv_cancel(ORTE_NAME_WILDCARD, ORTE_RML_TAG_DATA_SERVER))) {
ORTE_ERROR_LOG(rc);
}
recv_issued = false;
}
}
static orte_data_object_t *lookup(char *service)
{
orte_std_cntr_t i;
orte_data_object_t **data;
data = (orte_data_object_t**)orte_data_server_store->addr;
for (i=0; i < orte_data_server_store->size; i++) {
if (NULL != data[i]) {
if (0 == strcmp(data[i]->service, service)) {
return data[i];
}
}
}
/* get here if not found - return NULL */
return NULL;
}
static void process_message(int fd, short event, void *evdat)
{
orte_message_event_t *mev = (orte_message_event_t*)evdat;
orte_process_name_t *sender = &mev->sender;
opal_buffer_t *buffer = mev->buffer;
orte_data_server_cmd_t command;
orte_std_cntr_t count;
char *service_name, *port_name;
orte_data_object_t *data;
opal_buffer_t answer;
int rc, ret;
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &command, &count, ORTE_DATA_SERVER_CMD))) {
ORTE_ERROR_LOG(rc);
return;
}
OBJ_CONSTRUCT(&answer, opal_buffer_t);
switch(command) {
case ORTE_DATA_SERVER_PUBLISH:
/* unpack the service name */
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &service_name, &count, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto SEND_ERROR;
}
/* unpack the port name */
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &port_name, &count, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto SEND_ERROR;
}
OPAL_OUTPUT_VERBOSE((1, orte_debug_output,
"%s data server: publishing service %s port %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
service_name, port_name));
/* check the current data store to see if this service name has already
* been published
*/
if (NULL != lookup(service_name)) {
/* already exists - return ORTE_EXISTS error code */
OPAL_OUTPUT_VERBOSE((1, orte_debug_output,
"%s data server: publishing service %s port %s already exists",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
service_name, port_name));
ret = ORTE_EXISTS;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&answer, &ret, 1, OPAL_INT))) {
ORTE_ERROR_LOG(rc);
/* if we can't pack it, we probably can't pack the
* rc value either, so just send whatever is there
*/
}
goto SEND_ANSWER;
}
/* create a new data object */
data = OBJ_NEW(orte_data_object_t);
/* pass over the data values - these were malloc'd when unpacked,
* so we don't need to strdup them here
*/
data->service = service_name;
data->port = port_name;
data->owner.jobid = sender->jobid;
data->owner.vpid = sender->vpid;
/* store the data */
data->index = opal_pointer_array_add(orte_data_server_store, data);
OPAL_OUTPUT_VERBOSE((1, orte_debug_output,
"%s data server: successfully published service %s port %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
service_name, port_name));
/* tell the user it was wonderful... */
ret = ORTE_SUCCESS;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&answer, &ret, 1, OPAL_INT))) {
ORTE_ERROR_LOG(rc);
/* if we can't pack it, we probably can't pack the
* rc value either, so just send whatever is there
*/
}
goto SEND_ANSWER;
break;
case ORTE_DATA_SERVER_LOOKUP:
/* unpack the service name */
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &service_name, &count, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto SEND_ERROR;
}
OPAL_OUTPUT_VERBOSE((1, orte_debug_output,
"%s data server: lookup on service %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
service_name));
/* locate this record in the data store */
if (NULL == (data = lookup(service_name))) {
OPAL_OUTPUT_VERBOSE((1, orte_debug_output,
"%s data server: service %s not found",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
service_name));
/* return ORTE_ERR_NOT_FOUND error code */
ret = ORTE_ERR_NOT_FOUND;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&answer, &ret, 1, OPAL_INT))) {
ORTE_ERROR_LOG(rc);
/* if we can't pack it, we probably can't pack the
* rc value either, so just send whatever is there
*/
}
goto SEND_ANSWER;
}
OPAL_OUTPUT_VERBOSE((1, orte_debug_output,
"%s data server: successful lookup on service %s port %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
service_name, data->port));
/* pack success so the unpack on the other end can
* always unpack an int first
*/
ret = ORTE_SUCCESS;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&answer, &ret, 1, OPAL_INT))) {
ORTE_ERROR_LOG(rc);
/* if we can't pack it, we probably can't pack the
* rc value either, so just send whatever is there
*/
goto SEND_ANSWER;
}
/* pack the returned port */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&answer, &data->port, 1, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
/* if we can't pack it, we probably can't pack the
* rc value either, so just send whatever is there
*/
}
goto SEND_ANSWER;
break;
case ORTE_DATA_SERVER_UNPUBLISH:
/* unpack the service name */
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &service_name, &count, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto SEND_ERROR;
}
OPAL_OUTPUT_VERBOSE((1, orte_debug_output,
"%s data server: unpublish on service %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
service_name));
/* locate this record in the data store */
if (NULL == (data = lookup(service_name))) {
OPAL_OUTPUT_VERBOSE((1, orte_debug_output,
"%s data server: service %s not found",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
service_name));
/* return ORTE_ERR_NOT_FOUND error code */
ret = ORTE_ERR_NOT_FOUND;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&answer, &ret, 1, OPAL_INT))) {
ORTE_ERROR_LOG(rc);
/* if we can't pack it, we probably can't pack the
* rc value either, so just send whatever is there
*/
}
goto SEND_ANSWER;
}
/* check to see if the sender owns it - must be exact match */
if (OPAL_EQUAL != orte_util_compare_name_fields(ORTE_NS_CMP_ALL,
&data->owner, sender)) {
OPAL_OUTPUT_VERBOSE((1, orte_debug_output,
"%s data server: service %s not owned by sender %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
service_name, ORTE_NAME_PRINT(sender)));
/* nope - return ORTE_ERR_PERM error code */
ret = ORTE_ERR_PERM;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&answer, &ret, 1, OPAL_INT))) {
ORTE_ERROR_LOG(rc);
/* if we can't pack it, we probably can't pack the
* rc value either, so just send whatever is there
*/
}
goto SEND_ANSWER;
}
/* delete the object from the data store */
opal_pointer_array_set_item(orte_data_server_store, data->index, NULL);
OBJ_RELEASE(data);
OPAL_OUTPUT_VERBOSE((1, orte_debug_output,
"%s data server: service %s unpublished",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
service_name));
/* tell the sender this succeeded */
ret = ORTE_SUCCESS;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&answer, &ret, 1, OPAL_INT))) {
ORTE_ERROR_LOG(rc);
/* if we can't pack it, we probably can't pack the
* rc value either, so just send whatever is there
*/
}
goto SEND_ANSWER;
break;
default:
ORTE_ERROR_LOG(ORTE_ERR_BAD_PARAM);
rc = ORTE_ERR_BAD_PARAM;
break;
}
SEND_ERROR:
/* pack the error code */
if (ORTE_SUCCESS != (ret = opal_dss.pack(&answer, &rc, 1, OPAL_INT))) {
ORTE_ERROR_LOG(ret);
}
SEND_ANSWER:
if (0 > (rc = orte_rml.send_buffer(sender, &answer, ORTE_RML_TAG_DATA_CLIENT, 0))) {
ORTE_ERROR_LOG(rc);
}
OBJ_DESTRUCT(&answer);
OBJ_RELEASE(mev);
}
void orte_data_server(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata)
{
int rc;
OPAL_OUTPUT_VERBOSE((1, orte_debug_output,
"%s data server got message from %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(sender)));
/* don't process this right away - we need to get out of the recv before
* we process the message as it may ask us to do something that involves
* more messaging! Instead, setup an event so that the message gets processed
* as soon as we leave the recv.
*
* The macro makes a copy of the buffer, which we release above - the incoming
* buffer, however, is NOT released here, although its payload IS transferred
* to the message buffer for later processing
*/
ORTE_MESSAGE_EVENT(sender, buffer, tag, process_message);
/* reissue the recv */
if (ORTE_SUCCESS != (rc = orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_DATA_SERVER,
ORTE_RML_NON_PERSISTENT,
orte_data_server,
NULL))) {
ORTE_ERROR_LOG(rc);
}
}
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