/**
* \brief Remove data manager from list, close it and free templates
*
* \param[in] output_manager Output Manager structure
* \param[in] old_manager Data Manager to remove and close
*/
void output_manager_remove(struct output_manager_config *output_manager, struct data_manager_config *old_manager)
{
struct data_manager_config *aux_conf = output_manager->data_managers;
if (aux_conf == old_manager) {
output_manager->data_managers = old_manager->next;
}
while (aux_conf->next) {
if (aux_conf->next == old_manager) {
aux_conf->next = old_manager->next;
if (output_manager->last == old_manager) {
output_manager->last = aux_conf;
}
break;
} else {
aux_conf = aux_conf->next;
}
}
if (output_manager->data_managers == NULL) {
output_manager->last = NULL;
}
uint32_t odid = old_manager->observation_domain_id;
data_manager_close(&old_manager);
tm_remove_all_odid_templates(template_mgr, odid);
}
/**
* \brief Remove data manager from list, close it and free templates
*
* \param[in] output_manager Output Manager structure
* \param[in] old_manager Data Manager to remove and close
*/
void output_manager_remove(struct output_manager_config *output_manager, struct data_manager_config *old_manager)
{
struct data_manager_config *aux_conf = output_manager->data_managers;
if (aux_conf == old_manager) {
output_manager->data_managers = old_manager->next;
}
while (aux_conf->next) {
if (aux_conf->next == old_manager) {
aux_conf->next = old_manager->next;
if (output_manager->last == old_manager) {
output_manager->last = aux_conf;
}
break;
} else {
aux_conf = aux_conf->next;
}
}
if (output_manager->data_managers == NULL) {
output_manager->last = NULL;
}
uint32_t odid = old_manager->observation_domain_id;
data_manager_close(&old_manager);
if (!output_manager->perman_odid_merge && output_manager->manager_mode != OM_SINGLE) {
tm_remove_all_odid_templates(template_mgr, odid);
} else {
// Single manager -> remove all templates
tm_remove_all_templates(template_mgr);
}
}
/**
* \brief Change mode of output manager
*
* Allow to change mode from single mode to multi mode and vice versa.
* If new mode is different from current mode, all data managers are removed.
* If the manager thread is running, it will be stopped and restarted later.
*
* \param[in] mode New mode of output manager
* \return 0 on successs
*/
int output_manager_set_mode(enum om_mode mode)
{
if (conf->perman_odid_merge) {
/* Nothing can be changed, permanent single manager mode enabled */
if (mode == OM_MULTIPLE) {
MSG_WARNING(msg_module, "Unable to change Output Manager mode. "
"Single manager mode permanently enabled ('-M' argument)");
}
return 0;
}
if (conf->manager_mode == mode) {
/* Mode is still the same */
return 0;
}
if (conf->running) {
MSG_DEBUG(msg_module, "Stopping Output Manager thread");
rbuffer_write(conf->in_queue, NULL, 1);
pthread_join(conf->thread_id, NULL);
}
/* Delete data managers */
struct data_manager_config *aux_config = conf->data_managers;
while (aux_config) {
struct data_manager_config *tmp = aux_config;
aux_config = aux_config->next;
data_manager_close(&tmp);
}
conf->data_managers = NULL;
conf->last = NULL;
conf->manager_mode = mode;
if (mode == OM_SINGLE) {
MSG_INFO(msg_module, "Switching Output Manager to single manager mode");
} else if (mode == OM_MULTIPLE) {
MSG_INFO(msg_module, "Switching Output Manager to multiple manager mode");
} else {
/* Unknown mode */
}
if (conf->running) {
/* Restart thread */
int retval;
MSG_DEBUG(msg_module, "Restarting Output Manager thread");
retval = pthread_create(&(conf->thread_id), NULL,
&output_manager_plugin_thread, (void *) conf);
if (retval != 0) {
MSG_ERROR(msg_module, "Unable to create Output Manager thread");
free(conf);
return -1;
}
}
return 0;
}
/**
* \brief Close Ouput Manager and all Data Managers
*/
void output_manager_close(void *config)
{
struct output_manager_config *manager = (struct output_manager_config *) config;
struct data_manager_config *aux_config = NULL, *tmp = NULL;
struct stat_thread *aux_thread = NULL, *tmp_thread = NULL;
/* Stop Output Manager thread and free input buffer */
if (manager->running) {
rbuffer_write(manager->in_queue, NULL, 1);
pthread_join(manager->thread_id, NULL);
rbuffer_free(manager->in_queue);
/* Close statistics thread */
if (manager->stat_interval > 0) {
manager->stats.done = 1;
pthread_kill(manager->stat_thread, SIGUSR1);
pthread_join(manager->stat_thread, NULL);
}
aux_config = manager->data_managers;
/* Close all data managers */
while (aux_config) {
tmp = aux_config;
aux_config = aux_config->next;
data_manager_close(&tmp);
}
/* Free input_info_list */
if (input_info_list) {
struct input_info_node *aux_node = input_info_list;
while (aux_node) {
struct input_info_node *aux_node_rm = aux_node;
aux_node = aux_node->next;
free(aux_node_rm);
}
}
/* Free all thread structures for statistics */
aux_thread = manager->stats.threads;
while (aux_thread) {
tmp_thread = aux_thread;
aux_thread = aux_thread->next;
free(tmp_thread);
}
}
free(manager);
}