void stats_initialize(void)
{
if (_stats_running)
return;
/* set up global struct */
_stats.global_tree = avl_tree_new(_compare_stats, NULL);
_stats.source_tree = avl_tree_new(_compare_source_stats, NULL);
_stats.event_listeners = NULL;
thread_mutex_create (&_stats.listeners_lock);
_stats_running = 1;
stats_event_time (NULL, "server_start", STATS_GENERAL);
/* global currently active stats */
stats_event_flags (NULL, "clients", "0", STATS_COUNTERS);
stats_event_flags (NULL, "connections", "0", STATS_COUNTERS);
stats_event_flags (NULL, "sources", "0", STATS_COUNTERS);
stats_event_flags (NULL, "stats", "0", STATS_COUNTERS);
stats_event_flags (NULL, "banned_IPs", "0", STATS_COUNTERS);
stats_event (NULL, "listeners", "0");
/* global accumulating stats */
stats_event_flags (NULL, "client_connections", "0", STATS_COUNTERS);
stats_event_flags (NULL, "source_client_connections", "0", STATS_COUNTERS);
stats_event_flags (NULL, "source_relay_connections", "0", STATS_COUNTERS);
stats_event_flags (NULL, "source_total_connections", "0", STATS_COUNTERS);
stats_event_flags (NULL, "stats_connections", "0", STATS_COUNTERS);
stats_event_flags (NULL, "listener_connections", "0", STATS_COUNTERS);
stats_event_flags (NULL, "outgoing_kbitrate", "0", STATS_COUNTERS|STATS_REGULAR);
stats_event_flags (NULL, "stream_kbytes_sent", "0", STATS_COUNTERS|STATS_REGULAR);
stats_event_flags (NULL, "stream_kbytes_read", "0", STATS_COUNTERS|STATS_REGULAR);
}
static void *_stats_thread(void *arg)
{
stats_event_t *event;
stats_event_t *copy;
event_listener_t *listener;
stats_event_time (NULL, "server_start");
stats_event_time_iso8601 (NULL, "server_start_iso8601");
/* global currently active stats */
stats_event (NULL, "clients", "0");
stats_event (NULL, "connections", "0");
stats_event (NULL, "sources", "0");
stats_event (NULL, "stats", "0");
stats_event (NULL, "listeners", "0");
/* global accumulating stats */
stats_event (NULL, "client_connections", "0");
stats_event (NULL, "source_client_connections", "0");
stats_event (NULL, "source_relay_connections", "0");
stats_event (NULL, "source_total_connections", "0");
stats_event (NULL, "stats_connections", "0");
stats_event (NULL, "listener_connections", "0");
ICECAST_LOG_INFO("stats thread started");
while (_stats_running) {
thread_mutex_lock(&_global_event_mutex);
if (_global_event_queue.head != NULL) {
/* grab the next event from the queue */
event = _get_event_from_queue (&_global_event_queue);
thread_mutex_unlock(&_global_event_mutex);
if (event == NULL)
continue;
event->next = NULL;
thread_mutex_lock(&_stats_mutex);
/* check if we are dealing with a global or source event */
if (event->source == NULL)
process_global_event (event);
else
process_source_event (event);
/* now we have an event that's been processed into the running stats */
/* this event should get copied to event listeners' queues */
listener = (event_listener_t *)_event_listeners;
while (listener) {
copy = _copy_event(event);
thread_mutex_lock (&listener->mutex);
_add_event_to_queue (copy, &listener->queue);
thread_mutex_unlock (&listener->mutex);
listener = listener->next;
}
/* now we need to destroy the event */
_free_event(event);
thread_mutex_unlock(&_stats_mutex);
continue;
}
else
{
thread_mutex_unlock(&_global_event_mutex);
}
thread_sleep(300000);
}
return NULL;
}
/* This is called when there has been a change in the metadata. Usually
* artist and title are provided separately so here we update the stats
* and write log entry if required.
*/
static void update_comments (source_t *source)
{
ogg_state_t *ogg_info = source->format->_state;
char *title = ogg_info->title;
char *artist = ogg_info->artist;
char *metadata = NULL;
unsigned int len = 1; /* space for the nul byte at least */
ogg_codec_t *codec;
char codec_names [100] = "";
if (ogg_info->artist)
{
if (title)
{
len += strlen(artist) + strlen(title) + 3;
metadata = calloc (1, len);
snprintf (metadata, len, "%s - %s", artist, title);
}
else
{
len += strlen(artist);
metadata = calloc (1, len);
snprintf (metadata, len, "%s", artist);
}
}
else
{
if (title)
{
len += strlen (title);
metadata = calloc (1, len);
snprintf (metadata, len, "%s", title);
}
}
json_stats_update(source->mount, ogg_info->artist, ogg_info->title, source->listeners);
if (metadata)
{
logging_playlist (source->mount, metadata, source->listeners);
free (metadata);
}
stats_event (source->mount, "artist", artist);
stats_event (source->mount, "title", title);
stats_event_time (source->mount, "metadata_updated", STATS_GENERAL);
codec = ogg_info->codecs;
while (codec)
{
if (codec->name)
{
size_t len = strlen (codec_names);
size_t remaining = sizeof (codec_names) - len;
char *where = codec_names + len;
char *separator = "/";
if (len == 0)
separator = "";
snprintf (where, remaining, "%s%s", separator, codec->name);
}
codec = codec->next;
}
stats_event (source->mount, "subtype", codec_names);
yp_touch (source->mount);
}
/* Perform any initialisation just before the stream data is processed, the header
* info is processed by now and the format details are setup
*/
static void source_init (source_t *source)
{
ice_config_t *config = config_get_config();
char *listenurl;
const char *str;
int listen_url_size;
mount_proxy *mountinfo;
/* 6 for max size of port */
listen_url_size = strlen("http://") + strlen(config->hostname) +
strlen(":") + 6 + strlen(source->mount) + 1;
listenurl = malloc (listen_url_size);
memset (listenurl, '\000', listen_url_size);
snprintf (listenurl, listen_url_size, "http://%s%s",
config->hostname, source->mount);
config_release_config();
str = httpp_getvar(source->parser, "ice-audio-info");
source->audio_info = util_dict_new();
if (str)
{
_parse_audio_info (source, str);
stats_event (source->mount, "audio_info", str);
}
stats_event (source->mount, "listenurl", listenurl);
free(listenurl);
if (source->dumpfilename != NULL)
{
source->dumpfile = fopen (source->dumpfilename, "ab");
if (source->dumpfile == NULL)
{
WARN2("Cannot open dump file \"%s\" for appending: %s, disabling.",
source->dumpfilename, strerror(errno));
}
}
/* grab a read lock, to make sure we get a chance to cleanup */
thread_rwlock_rlock (source->shutdown_rwlock);
/* start off the statistics */
source->listeners = 0;
stats_event_inc (NULL, "source_total_connections");
stats_event (source->mount, "slow_listeners", "0");
stats_event_args (source->mount, "listeners", "%lu", source->listeners);
stats_event_args (source->mount, "listener_peak", "%lu", source->peak_listeners);
stats_event_time (source->mount, "stream_start");
DEBUG0("Source creation complete");
source->last_read = time (NULL);
source->prev_listeners = -1;
source->running = 1;
mountinfo = config_find_mount (config_get_config(), source->mount);
if (mountinfo)
{
if (mountinfo->on_connect)
source_run_script (mountinfo->on_connect, source->mount);
auth_stream_start (mountinfo, source->mount);
}
config_release_config();
/*
** Now, if we have a fallback source and override is on, we want
** to steal its clients, because it means we've come back online
** after a failure and they should be gotten back from the waiting
** loop or jingle track or whatever the fallback is used for
*/
if (source->fallback_override && source->fallback_mount)
{
source_t *fallback_source;
avl_tree_rlock(global.source_tree);
fallback_source = source_find_mount(source->fallback_mount);
if (fallback_source)
source_move_clients (fallback_source, source);
avl_tree_unlock(global.source_tree);
}
}
static void *_stats_thread(void *arg)
{
stats_event_t *event;
stats_event_t *copy;
event_listener_t *listener;
if (!kitsune_is_updating()) { /**DSU control */
stats_event (NULL, "server", ICECAST_VERSION_STRING);
stats_event_time (NULL, "server_start");
/* global currently active stats */
stats_event (NULL, "clients", "0");
stats_event (NULL, "connections", "0");
stats_event (NULL, "sources", "0");
stats_event (NULL, "stats", "0");
/* global accumulating stats */
stats_event (NULL, "client_connections", "0");
stats_event (NULL, "source_client_connections", "0");
stats_event (NULL, "source_relay_connections", "0");
stats_event (NULL, "source_total_connections", "0");
stats_event (NULL, "stats_connections", "0");
stats_event (NULL, "listener_connections", "0");
INFO0 ("stats thread started");
}
while (_stats_running) {
kitsune_update("stats"); /**DSU updatepoint */
if (_global_event_queue != NULL) {
/* grab the next event from the queue */
thread_mutex_lock(&_global_event_mutex);
event = (stats_event_t *)_global_event_queue;
_global_event_queue = event->next;
thread_mutex_unlock(&_global_event_mutex);
event->next = NULL;
thread_mutex_lock(&_stats_mutex);
/* check if we are dealing with a global or source event */
if (event->source == NULL)
process_global_event (event);
else
process_source_event (event);
/* now we have an event that's been processed into the running stats */
/* this event should get copied to event listeners' queues */
listener = (event_listener_t *)_event_listeners;
while (listener) {
copy = _copy_event(event);
thread_mutex_lock(listener->mutex);
_add_event_to_queue(copy, listener->queue);
thread_mutex_unlock(listener->mutex);
listener = listener->next;
}
/* now we need to destroy the event */
_free_event(event);
thread_mutex_unlock(&_stats_mutex);
continue;
}
thread_sleep(300000);
}
return NULL;
}