Adding stream_start_iso8601, server_start_iso8601

ISO8601 compliante timestamps for statistics. Should make usage in e.g. JSON
much easier.
Added as new variables to avoid breaking backwards compatibility.

svn path=/icecast/trunk/icecast/; revision=19122

src/source.c

@@ -656,6 +656,7 @@ static void source_init (source_t *source)
     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");
+    stats_event_time_iso8601 (source->mount, "stream_start_iso8601");
 
     DEBUG0("Source creation complete");
     source->last_read = time (NULL);

src/stats.c

@@ -597,6 +597,18 @@ void stats_event_time (const char *mount, const char *name)
 }
 
 
+void stats_event_time_iso8601 (const char *mount, const char *name)
+{
+    time_t now = time(NULL);
+    struct tm local;
+    char buffer[100];
+
+    localtime_r (&now, &local);
+    strftime (buffer, sizeof (buffer), "%FT%T%z", &local);
+    stats_event (mount, name, buffer);
+}
+
+
 void stats_global (ice_config_t *config)
 {
     stats_event (NULL, "server_id", config->server_id);
@@ -613,6 +625,7 @@ static void *_stats_thread(void *arg)
     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");

src/stats.h

@@ -89,6 +89,7 @@ void stats_event_sub(const char *source, const char *name, unsigned long value);
 void stats_event_dec(const char *source, const char *name);
 void stats_event_hidden (const char *source, const char *name, int hidden);
 void stats_event_time (const char *mount, const char *name);
+void stats_event_time_iso8601 (const char *mount, const char *name);
 
 void *stats_connection(void *arg);
 void stats_callback (client_t *client, void *notused);