/* called on reload, so drop all redirection and trigger source checkup and
* rebuild all stat mountpoints
*/
void slave_restart (void)
{
restart_connection_thread = 1;
slave_update_all_mounts ();
update_all_sources = 1;
streamlist_check = 0;
}
void *source_client_thread (void *arg)
{
source_t *source = arg;
stats_event_inc(NULL, "source_client_connections");
stats_event (source->mount, "listeners", "0");
source_main (source);
source_free_source (source);
slave_update_all_mounts();
return NULL;
}
void event_config_read(void *arg)
{
int ret;
ice_config_t *config;
ice_config_t new_config;
/* reread config file */
config = config_grab_config(); /* Both to get the lock, and to be able
to find out the config filename */
xmlSetGenericErrorFunc ("config", log_parse_failure);
ret = config_parse_file(config->config_filename, &new_config);
if(ret < 0) {
ICECAST_LOG_ERROR("Error parsing config, not replacing existing config");
switch(ret) {
case CONFIG_EINSANE:
ICECAST_LOG_ERROR("Config filename null or blank");
break;
case CONFIG_ENOROOT:
ICECAST_LOG_ERROR("Root element not found in %s", config->config_filename);
break;
case CONFIG_EBADROOT:
ICECAST_LOG_ERROR("Not an icecast2 config file: %s",
config->config_filename);
break;
default:
ICECAST_LOG_ERROR("Parse error in reading %s", config->config_filename);
break;
}
config_release_config();
}
else {
config_clear(config);
config_set_config(&new_config);
config = config_get_config_unlocked();
restart_logging (config);
yp_recheck_config (config);
fserve_recheck_mime_types (config);
stats_global (config);
config_release_config();
slave_update_all_mounts();
}
}
int relay_toggle (relay_server *relay)
{
source_t *source = relay->source;
client_t *client;
int ret = 0;
thread_rwlock_wlock (&source->lock);
client = source->client;
thread_rwlock_unlock (&source->lock);
if (relay->running == 0)
{
client->ops = &relay_init_ops;
ret = 1;
}
relay->running = relay->running ? 0 : 1;
client->schedule_ms = 0;
worker_wakeup (client->worker);
slave_update_all_mounts();
return ret;
}
/* wrapper for starting the provided relay stream */
static void check_relay_stream (relay_server *relay)
{
if (relay->source == NULL)
{
if (relay->localmount[0] != '/')
{
ICECAST_LOG_WARN("relay mountpoint \"%s\" does not start with /, skipping",
relay->localmount);
return;
}
/* new relay, reserve the name */
relay->source = source_reserve (relay->localmount);
if (relay->source)
{
ICECAST_LOG_DEBUG("Adding relay source at mountpoint \"%s\"", relay->localmount);
if (relay->on_demand)
{
ice_config_t *config = config_get_config ();
mount_proxy *mountinfo = config_find_mount (config, relay->localmount, MOUNT_TYPE_NORMAL);
relay->source->on_demand = relay->on_demand;
if (mountinfo == NULL)
source_update_settings (config, relay->source, mountinfo);
config_release_config ();
stats_event (relay->localmount, "listeners", "0");
slave_update_all_mounts();
}
}
else
{
if (relay->start == 0)
{
ICECAST_LOG_WARN("new relay but source \"%s\" already exists", relay->localmount);
relay->start = 1;
}
return;
}
}
do
{
source_t *source = relay->source;
/* skip relay if active, not configured or just not time yet */
if (relay->source == NULL || relay->running || relay->start > time(NULL))
break;
/* check if an inactive on-demand relay has a fallback that has listeners */
if (relay->on_demand && source->on_demand_req == 0)
{
relay->source->on_demand = relay->on_demand;
if (source->fallback_mount && source->fallback_override)
{
source_t *fallback;
avl_tree_rlock (global.source_tree);
fallback = source_find_mount (source->fallback_mount);
if (fallback && fallback->running && fallback->listeners)
{
ICECAST_LOG_DEBUG("fallback running %d with %lu listeners", fallback->running, fallback->listeners);
source->on_demand_req = 1;
}
avl_tree_unlock (global.source_tree);
}
if (source->on_demand_req == 0)
break;
}
relay->start = time(NULL) + 5;
relay->running = 1;
relay->thread = thread_create ("Relay Thread", start_relay_stream,
relay, THREAD_ATTACHED);
return;
} while (0);
/* the relay thread may of shut down itself */
if (relay->cleanup)
{
if (relay->thread)
{
ICECAST_LOG_DEBUG("waiting for relay thread for \"%s\"", relay->localmount);
thread_join (relay->thread);
relay->thread = NULL;
}
relay->cleanup = 0;
relay->running = 0;
if (relay->on_demand && relay->source)
{
ice_config_t *config = config_get_config ();
mount_proxy *mountinfo = config_find_mount (config, relay->localmount, MOUNT_TYPE_NORMAL);
source_update_settings (config, relay->source, mountinfo);
config_release_config ();
stats_event (relay->localmount, "listeners", "0");
}
}
}
/* This does the actual connection for a relay. A thread is
* started off if a connection can be acquired
*/
static void *start_relay_stream (void *arg)
{
relay_server *relay = arg;
source_t *src = relay->source;
client_t *client;
ICECAST_LOG_INFO("Starting relayed source at mountpoint \"%s\"", relay->localmount);
do
{
client = open_relay_connection (relay);
if (client == NULL)
continue;
src->client = client;
src->parser = client->parser;
src->con = client->con;
if (connection_complete_source (src, 0) < 0)
{
ICECAST_LOG_INFO("Failed to complete source initialisation");
client_destroy (client);
src->client = NULL;
continue;
}
stats_event_inc(NULL, "source_relay_connections");
stats_event (relay->localmount, "source_ip", client->con->ip);
source_main (relay->source);
if (relay->on_demand == 0)
{
/* only keep refreshing YP entries for inactive on-demand relays */
yp_remove (relay->localmount);
relay->source->yp_public = -1;
relay->start = time(NULL) + 10; /* prevent busy looping if failing */
slave_update_all_mounts();
}
/* we've finished, now get cleaned up */
relay->cleanup = 1;
slave_rebuild_mounts();
return NULL;
} while (0); /* TODO allow looping through multiple servers */
if (relay->source->fallback_mount)
{
source_t *fallback_source;
ICECAST_LOG_DEBUG("failed relay, fallback to %s", relay->source->fallback_mount);
avl_tree_rlock(global.source_tree);
fallback_source = source_find_mount(relay->source->fallback_mount);
if (fallback_source != NULL)
source_move_clients(relay->source, fallback_source);
avl_tree_unlock(global.source_tree);
}
source_clear_source(relay->source);
/* cleanup relay, but prevent this relay from starting up again too soon */
thread_mutex_lock(&_slave_mutex);
thread_mutex_lock(&(config_locks()->relay_lock));
relay->source->on_demand = 0;
relay->start = time(NULL) + max_interval;
relay->cleanup = 1;
thread_mutex_unlock(&(config_locks()->relay_lock));
thread_mutex_unlock(&_slave_mutex);
return NULL;
}
