OutputInternal: use Mutex instead of GMutex

src/OutputAll.cxx

@@ -161,9 +161,9 @@ audio_output_all_enable_disable(void)
 		struct audio_output *ao = audio_outputs[i];
 		bool enabled;
 
-		g_mutex_lock(ao->mutex);
+		ao->mutex.lock();
 		enabled = ao->really_enabled;
-		g_mutex_unlock(ao->mutex);
+		ao->mutex.unlock();
 
 		if (ao->enabled != enabled) {
 			if (ao->enabled)
@@ -183,14 +183,10 @@ audio_output_all_finished(void)
 {
 	for (unsigned i = 0; i < num_audio_outputs; ++i) {
 		struct audio_output *ao = audio_outputs[i];
-		bool not_finished;
 
-		g_mutex_lock(ao->mutex);
-		not_finished = audio_output_is_open(ao) &&
-			!audio_output_command_is_finished(ao);
-		g_mutex_unlock(ao->mutex);
-
-		if (not_finished)
+		const ScopeLock protect(ao->mutex);
+		if (audio_output_is_open(ao) &&
+		    !audio_output_command_is_finished(ao))
 			return false;
 	}
 
@@ -216,14 +212,12 @@ audio_output_allow_play_all(void)
 static void
 audio_output_reset_reopen(struct audio_output *ao)
 {
-	g_mutex_lock(ao->mutex);
+	const ScopeLock protect(ao->mutex);
 
 	if (!ao->open && ao->fail_timer != NULL) {
 		g_timer_destroy(ao->fail_timer);
 		ao->fail_timer = NULL;
 	}
-
-	g_mutex_unlock(ao->mutex);
 }
 
 /**
@@ -383,14 +377,10 @@ static bool
 chunk_is_consumed(const struct music_chunk *chunk)
 {
 	for (unsigned i = 0; i < num_audio_outputs; ++i) {
-		const struct audio_output *ao = audio_outputs[i];
-		bool consumed;
-
-		g_mutex_lock(ao->mutex);
-		consumed = chunk_is_consumed_in(ao, chunk);
-		g_mutex_unlock(ao->mutex);
+		struct audio_output *ao = audio_outputs[i];
 
-		if (!consumed)
+		const ScopeLock protect(ao->mutex);
+		if (!chunk_is_consumed_in(ao, chunk))
 			return false;
 	}
 
@@ -412,11 +402,11 @@ clear_tail_chunk(G_GNUC_UNUSED const struct music_chunk *chunk, bool *locked)
 
 		/* this mutex will be unlocked by the caller when it's
 		   ready */
-		g_mutex_lock(ao->mutex);
+		ao->mutex.lock();
 		locked[i] = ao->open;
 
 		if (!locked[i]) {
-			g_mutex_unlock(ao->mutex);
+			ao->mutex.unlock();
 			continue;
 		}
 
@@ -465,7 +455,7 @@ audio_output_all_check(void)
 			   by clear_tail_chunk() */
 			for (unsigned i = 0; i < num_audio_outputs; ++i)
 				if (locked[i])
-					g_mutex_unlock(audio_outputs[i]->mutex);
+					audio_outputs[i]->mutex.unlock();
 
 		/* return the chunk to the buffer */
 		music_buffer_return(g_music_buffer, shifted);

src/OutputControl.cxx

@@ -47,9 +47,9 @@ struct notify audio_output_client_notify;
 static void ao_command_wait(struct audio_output *ao)
 {
 	while (ao->command != AO_COMMAND_NONE) {
-		g_mutex_unlock(ao->mutex);
+		ao->mutex.unlock();
 		audio_output_client_notify.Wait();
-		g_mutex_lock(ao->mutex);
+		ao->mutex.lock();
 	}
 }
 
@@ -64,7 +64,7 @@ static void ao_command_async(struct audio_output *ao,
 {
 	assert(ao->command == AO_COMMAND_NONE);
 	ao->command = cmd;
-	g_cond_signal(ao->cond);
+	ao->cond.signal();
 }
 
 /**
@@ -87,9 +87,8 @@ ao_command(struct audio_output *ao, enum audio_output_command cmd)
 static void
 ao_lock_command(struct audio_output *ao, enum audio_output_command cmd)
 {
-	g_mutex_lock(ao->mutex);
+	const ScopeLock protect(ao->mutex);
 	ao_command(ao, cmd);
-	g_mutex_unlock(ao->mutex);
 }
 
 void
@@ -231,33 +230,28 @@ audio_output_update(struct audio_output *ao,
 {
 	assert(mp != NULL);
 
-	g_mutex_lock(ao->mutex);
+	const ScopeLock protect(ao->mutex);
 
 	if (ao->enabled && ao->really_enabled) {
 		if (ao->fail_timer == NULL ||
 		    g_timer_elapsed(ao->fail_timer, NULL) > REOPEN_AFTER) {
-			bool success = audio_output_open(ao, audio_format, mp);
-			g_mutex_unlock(ao->mutex);
-			return success;
+			return audio_output_open(ao, audio_format, mp);
 		}
 	} else if (audio_output_is_open(ao))
 		audio_output_close_locked(ao);
 
-	g_mutex_unlock(ao->mutex);
 	return false;
 }
 
 void
 audio_output_play(struct audio_output *ao)
 {
-	g_mutex_lock(ao->mutex);
+	const ScopeLock protect(ao->mutex);
 
 	assert(ao->allow_play);
 
 	if (audio_output_is_open(ao))
-		g_cond_signal(ao->cond);
-
-	g_mutex_unlock(ao->mutex);
+		ao->cond.signal();
 }
 
 void audio_output_pause(struct audio_output *ao)
@@ -268,45 +262,41 @@ void audio_output_pause(struct audio_output *ao)
 		   mixer_auto_close()) */
 		mixer_auto_close(ao->mixer);
 
-	g_mutex_lock(ao->mutex);
+	const ScopeLock protect(ao->mutex);
+
 	assert(ao->allow_play);
 	if (audio_output_is_open(ao))
 		ao_command_async(ao, AO_COMMAND_PAUSE);
-	g_mutex_unlock(ao->mutex);
 }
 
 void
 audio_output_drain_async(struct audio_output *ao)
 {
-	g_mutex_lock(ao->mutex);
+	const ScopeLock protect(ao->mutex);
+
 	assert(ao->allow_play);
 	if (audio_output_is_open(ao))
 		ao_command_async(ao, AO_COMMAND_DRAIN);
-	g_mutex_unlock(ao->mutex);
 }
 
 void audio_output_cancel(struct audio_output *ao)
 {
-	g_mutex_lock(ao->mutex);
+	const ScopeLock protect(ao->mutex);
 
 	if (audio_output_is_open(ao)) {
 		ao->allow_play = false;
 		ao_command_async(ao, AO_COMMAND_CANCEL);
 	}
-
-	g_mutex_unlock(ao->mutex);
 }
 
 void
 audio_output_allow_play(struct audio_output *ao)
 {
-	g_mutex_lock(ao->mutex);
+	const ScopeLock protect(ao->mutex);
 
 	ao->allow_play = true;
 	if (audio_output_is_open(ao))
-		g_cond_signal(ao->cond);
-
-	g_mutex_unlock(ao->mutex);
+		ao->cond.signal();
 }
 
 void
@@ -323,9 +313,8 @@ void audio_output_close(struct audio_output *ao)
 	assert(ao != NULL);
 	assert(!ao->open || ao->fail_timer == NULL);
 
-	g_mutex_lock(ao->mutex);
+	const ScopeLock protect(ao->mutex);
 	audio_output_close_locked(ao);
-	g_mutex_unlock(ao->mutex);
 }
 
 void audio_output_finish(struct audio_output *ao)

src/OutputFinish.cxx

@@ -35,9 +35,6 @@ ao_base_finish(struct audio_output *ao)
 	if (ao->mixer != NULL)
 		mixer_free(ao->mixer);
 
-	g_cond_free(ao->cond);
-	g_mutex_free(ao->mutex);
-
 	delete ao->replay_gain_filter;
 	delete ao->other_replay_gain_filter;
 	delete ao->filter;

src/OutputInit.cxx

@@ -209,8 +209,6 @@ ao_base_init(struct audio_output *ao,
 
 	ao->thread = NULL;
 	ao->command = AO_COMMAND_NONE;
-	ao->mutex = g_mutex_new();
-	ao->cond = g_cond_new();
 
 	ao->mixer = NULL;
 	ao->replay_gain_filter = NULL;

src/OutputInternal.hxx

@@ -22,6 +22,8 @@
 
 #include "audio_format.h"
 #include "pcm/pcm_buffer.h"
+#include "thread/Mutex.hxx"
+#include "thread/Cond.hxx"
 
 #include <glib.h>
 
@@ -212,13 +214,13 @@ struct audio_output {
 	 * This mutex protects #open, #fail_timer, #chunk and
 	 * #chunk_finished.
 	 */
-	GMutex *mutex;
+	Mutex mutex;
 
 	/**
 	 * This condition object wakes up the output thread after
 	 * #command has been set.
 	 */
-	GCond *cond;
+	Cond cond;
 
 	/**
 	 * The player_control object which "owns" this output.  This

src/OutputThread.cxx

@@ -47,9 +47,9 @@ static void ao_command_finished(struct audio_output *ao)
 	assert(ao->command != AO_COMMAND_NONE);
 	ao->command = AO_COMMAND_NONE;
 
-	g_mutex_unlock(ao->mutex);
+	ao->mutex.unlock();
 	audio_output_client_notify.Signal();
-	g_mutex_lock(ao->mutex);
+	ao->mutex.lock();
 }
 
 static bool
@@ -61,9 +61,9 @@ ao_enable(struct audio_output *ao)
 	if (ao->really_enabled)
 		return true;
 
-	g_mutex_unlock(ao->mutex);
+	ao->mutex.unlock();
 	success = ao_plugin_enable(ao, &error);
-	g_mutex_lock(ao->mutex);
+	ao->mutex.lock();
 	if (!success) {
 		g_warning("Failed to enable \"%s\" [%s]: %s\n",
 			  ao->name, ao->plugin->name, error->message);
@@ -87,9 +87,9 @@ ao_disable(struct audio_output *ao)
 	if (ao->really_enabled) {
 		ao->really_enabled = false;
 
-		g_mutex_unlock(ao->mutex);
+		ao->mutex.unlock();
 		ao_plugin_disable(ao);
-		g_mutex_lock(ao->mutex);
+		ao->mutex.lock();
 	}
 }
 
@@ -174,9 +174,9 @@ ao_open(struct audio_output *ao)
 	audio_format_mask_apply(&ao->out_audio_format,
 				&ao->config_audio_format);
 
-	g_mutex_unlock(ao->mutex);
+	ao->mutex.unlock();
 	success = ao_plugin_open(ao, &ao->out_audio_format, &error);
-	g_mutex_lock(ao->mutex);
+	ao->mutex.lock();
 
 	assert(!ao->open);
 
@@ -216,7 +216,7 @@ ao_close(struct audio_output *ao, bool drain)
 	ao->chunk = NULL;
 	ao->open = false;
 
-	g_mutex_unlock(ao->mutex);
+	ao->mutex.unlock();
 
 	if (drain)
 		ao_plugin_drain(ao);
@@ -226,7 +226,7 @@ ao_close(struct audio_output *ao, bool drain)
 	ao_plugin_close(ao);
 	ao_filter_close(ao);
 
-	g_mutex_lock(ao->mutex);
+	ao->mutex.lock();
 
 	g_debug("closed plugin=%s name=\"%s\"", ao->plugin->name, ao->name);
 }
@@ -254,9 +254,9 @@ ao_reopen_filter(struct audio_output *ao)
 		ao->open = false;
 		ao->fail_timer = g_timer_new();
 
-		g_mutex_unlock(ao->mutex);
+		ao->mutex.unlock();
 		ao_plugin_close(ao);
-		g_mutex_lock(ao->mutex);
+		ao->mutex.lock();
 
 		return;
 	}
@@ -304,10 +304,7 @@ ao_wait(struct audio_output *ao)
 		if (delay == 0)
 			return true;
 
-		GTimeVal tv;
-		g_get_current_time(&tv);
-		g_time_val_add(&tv, delay * 1000);
-		(void)g_cond_timed_wait(ao->cond, ao->mutex, &tv);
+		(void)ao->cond.timed_wait(ao->mutex, delay);
 
 		if (ao->command != AO_COMMAND_NONE)
 			return false;
@@ -436,9 +433,9 @@ ao_play_chunk(struct audio_output *ao, const struct music_chunk *chunk)
 	assert(ao->filter != NULL);
 
 	if (ao->tags && gcc_unlikely(chunk->tag != NULL)) {
-		g_mutex_unlock(ao->mutex);
+		ao->mutex.unlock();
 		ao_plugin_send_tag(ao, chunk->tag);
-		g_mutex_lock(ao->mutex);
+		ao->mutex.lock();
 	}
 
 	size_t size;
@@ -462,9 +459,9 @@ ao_play_chunk(struct audio_output *ao, const struct music_chunk *chunk)
 		if (!ao_wait(ao))
 			break;
 
-		g_mutex_unlock(ao->mutex);
+		ao->mutex.unlock();
 		nbytes = ao_plugin_play(ao, data, size, &error);
-		g_mutex_lock(ao->mutex);
+		ao->mutex.lock();
 		if (nbytes == 0) {
 			/* play()==0 means failure */
 			g_warning("\"%s\" [%s] failed to play: %s",
@@ -541,9 +538,9 @@ ao_play(struct audio_output *ao)
 
 	ao->chunk_finished = true;
 
-	g_mutex_unlock(ao->mutex);
+	ao->mutex.unlock();
 	ao->player_control->LockSignal();
-	g_mutex_lock(ao->mutex);
+	ao->mutex.lock();
 
 	return true;
 }
@@ -552,9 +549,9 @@ static void ao_pause(struct audio_output *ao)
 {
 	bool ret;
 
-	g_mutex_unlock(ao->mutex);
+	ao->mutex.unlock();
 	ao_plugin_cancel(ao);
-	g_mutex_lock(ao->mutex);
+	ao->mutex.lock();
 
 	ao->pause = true;
 	ao_command_finished(ao);
@@ -563,9 +560,9 @@ static void ao_pause(struct audio_output *ao)
 		if (!ao_wait(ao))
 			break;
 
-		g_mutex_unlock(ao->mutex);
+		ao->mutex.unlock();
 		ret = ao_plugin_pause(ao);
-		g_mutex_lock(ao->mutex);
+		ao->mutex.lock();
 
 		if (!ret) {
 			ao_close(ao, false);
@@ -580,7 +577,7 @@ static gpointer audio_output_task(gpointer arg)
 {
 	struct audio_output *ao = (struct audio_output *)arg;
 
-	g_mutex_lock(ao->mutex);
+	ao->mutex.lock();
 
 	while (1) {
 		switch (ao->command) {
@@ -637,9 +634,9 @@ static gpointer audio_output_task(gpointer arg)
 				assert(ao->chunk == NULL);
 				assert(music_pipe_peek(ao->pipe) == NULL);
 
-				g_mutex_unlock(ao->mutex);
+				ao->mutex.unlock();
 				ao_plugin_drain(ao);
-				g_mutex_lock(ao->mutex);
+				ao->mutex.lock();
 			}
 
 			ao_command_finished(ao);
@@ -649,9 +646,9 @@ static gpointer audio_output_task(gpointer arg)
 			ao->chunk = NULL;
 
 			if (ao->open) {
-				g_mutex_unlock(ao->mutex);
+				ao->mutex.unlock();
 				ao_plugin_cancel(ao);
-				g_mutex_lock(ao->mutex);
+				ao->mutex.lock();
 			}
 
 			ao_command_finished(ao);
@@ -660,7 +657,7 @@ static gpointer audio_output_task(gpointer arg)
 		case AO_COMMAND_KILL:
 			ao->chunk = NULL;
 			ao_command_finished(ao);
-			g_mutex_unlock(ao->mutex);
+			ao->mutex.unlock();
 			return NULL;
 		}
 
@@ -670,7 +667,7 @@ static gpointer audio_output_task(gpointer arg)
 			continue;
 
 		if (ao->command == AO_COMMAND_NONE)
-			g_cond_wait(ao->cond, ao->mutex);
+			ao->cond.wait(ao->mutex);
 	}
 }