MT#61822 use MUTEX_STATIC_INIT

in a few places where it makes sense

Change-Id: Ie2b6308f5f33af9afe71584d710fd0116b17e865

daemon/iptables.c

@@ -52,7 +52,7 @@ struct ipv6_ipt_entry {
 };
 
 
-static mutex_t __xt_lock;
+static mutex_t __xt_lock = MUTEX_STATIC_INIT;
 static int __xt_lock_fd = -1;
 
 
@@ -327,7 +327,6 @@ void iptables_init(void) {
 
 #ifdef WITH_IPTABLES_OPTION
 
-	mutex_init(&__xt_lock);
 	iptables_add_rule = __iptables_add_rule;
 	iptables_del_rule = __iptables_del_rule;
 

daemon/janus.c

@@ -58,7 +58,7 @@ TYPED_GHASHTABLE(janus_rooms_ht, uint64_t, struct janus_room, int64_hash, int64_
 TYPED_GHASHTABLE(janus_tokens_ht, char, time_t, c_str_hash, c_str_equal, g_free, g_free)
 
 
-static mutex_t janus_lock;
+static mutex_t janus_lock = MUTEX_STATIC_INIT;
 static janus_tokens_ht janus_tokens; // auth tokens, currently mostly unused
 static janus_sessions_ht janus_sessions; // session ID -> session. holds a session reference
 static janus_handles_ht janus_handles; // handle ID -> handle
@@ -1974,7 +1974,6 @@ done:
 
 
 void janus_init(void) {
-	mutex_init(&janus_lock);
 	janus_tokens = janus_tokens_ht_new();
 	janus_sessions = janus_sessions_ht_new();
 	janus_handles = janus_handles_ht_new();
@@ -1982,7 +1981,6 @@ void janus_init(void) {
 	// XXX timer thread to clean up orphaned sessions
 }
 void janus_free(void) {
-	mutex_destroy(&janus_lock);
 	t_hash_table_destroy(janus_tokens);
 	t_hash_table_destroy(janus_sessions);
 	t_hash_table_destroy(janus_handles);

daemon/media_player.c

@@ -82,7 +82,7 @@ struct media_player_cache_packet {
 	long long duration_ts;
 };
 
-static mutex_t media_player_cache_lock;
+static mutex_t media_player_cache_lock = MUTEX_STATIC_INIT;
 static GHashTable *media_player_cache; // keys and values only ever freed at shutdown
 
 static bool media_player_read_packet(struct media_player *mp);
@@ -1744,7 +1744,6 @@ void media_player_init(void) {
 		media_player_cache = g_hash_table_new_full(media_player_cache_entry_hash,
 				media_player_cache_entry_eq, media_player_cache_index_free,
 				media_player_cache_entry_free);
-		mutex_init(&media_player_cache_lock);
 	}
 
 	timerthread_init(&media_player_thread, rtpe_config.media_num_threads, media_player_run);
@@ -1756,10 +1755,8 @@ void media_player_free(void) {
 #ifdef WITH_TRANSCODING
 	timerthread_free(&media_player_thread);
 
-	if (media_player_cache) {
-		mutex_destroy(&media_player_cache_lock);
+	if (media_player_cache)
 		g_hash_table_destroy(media_player_cache);
-	}
 #endif
 	timerthread_free(&send_timer_thread);
 }