songvec: migrate from pthread to glib threads

src/main.c

@@ -51,6 +51,7 @@
 #include "main_notify.h"
 #include "os_compat.h"
 #include "dirvec.h"
+#include "songvec.h"
 
 #ifdef ENABLE_ARCHIVE
 #include "archive_list.h"
@@ -271,6 +272,7 @@ int main(int argc, char *argv[])
 
 	idle_init();
 	dirvec_init();
+	songvec_init();
 	initConf();
 
 	parseOptions(argc, argv, &options);
@@ -385,6 +387,7 @@ int main(int argc, char *argv[])
 	music_pipe_free();
 	cleanUpPidFile();
 	finishConf();
+	songvec_deinit();
 	dirvec_deinit();
 	idle_deinit();
 

src/songvec.c

@@ -3,10 +3,9 @@
 #include "utils.h"
 
 #include <assert.h>
-#include <pthread.h>
 #include <string.h>
 
-static pthread_mutex_t nr_lock = PTHREAD_MUTEX_INITIALIZER;
+static GMutex *nr_lock = NULL;
 
 /* Only used for sorting/searchin a songvec, not general purpose compares */
 static int songvec_cmp(const void *s1, const void *s2)
@@ -21,11 +20,24 @@ static size_t sv_size(const struct songvec *sv)
 	return sv->nr * sizeof(struct song *);
 }
 
+void songvec_init(void)
+{
+	g_assert(nr_lock == NULL);
+	nr_lock = g_mutex_new();
+}
+
+void songvec_deinit(void)
+{
+	g_assert(nr_lock != NULL);
+	g_mutex_free(nr_lock);
+	nr_lock = NULL;
+}
+
 void songvec_sort(struct songvec *sv)
 {
-	pthread_mutex_lock(&nr_lock);
+	g_mutex_lock(nr_lock);
 	qsort(sv->base, sv->nr, sizeof(struct song *), songvec_cmp);
-	pthread_mutex_unlock(&nr_lock);
+	g_mutex_unlock(nr_lock);
 }
 
 struct song *
@@ -34,14 +46,14 @@ songvec_find(const struct songvec *sv, const char *url)
 	int i;
 	struct song *ret = NULL;
 
-	pthread_mutex_lock(&nr_lock);
+	g_mutex_lock(nr_lock);
 	for (i = sv->nr; --i >= 0; ) {
 		if (strcmp(sv->base[i]->url, url))
 			continue;
 		ret = sv->base[i];
 		break;
 	}
-	pthread_mutex_unlock(&nr_lock);
+	g_mutex_unlock(nr_lock);
 	return ret;
 }
 
@@ -50,7 +62,7 @@ songvec_delete(struct songvec *sv, const struct song *del)
 {
 	size_t i;
 
-	pthread_mutex_lock(&nr_lock);
+	g_mutex_lock(nr_lock);
 	for (i = 0; i < sv->nr; ++i) {
 		if (sv->base[i] != del)
 			continue;
@@ -63,10 +75,10 @@ songvec_delete(struct songvec *sv, const struct song *del)
 				(sv->nr - i) * sizeof(struct song *));
 			sv->base = xrealloc(sv->base, sv_size(sv));
 		}
-		pthread_mutex_unlock(&nr_lock);
+		g_mutex_unlock(nr_lock);
 		return i;
 	}
-	pthread_mutex_unlock(&nr_lock);
+	g_mutex_unlock(nr_lock);
 
 	return -1; /* not found */
 }
@@ -74,18 +86,18 @@ songvec_delete(struct songvec *sv, const struct song *del)
 void
 songvec_add(struct songvec *sv, struct song *add)
 {
-	pthread_mutex_lock(&nr_lock);
+	g_mutex_lock(nr_lock);
 	++sv->nr;
 	sv->base = xrealloc(sv->base, sv_size(sv));
 	sv->base[sv->nr - 1] = add;
-	pthread_mutex_unlock(&nr_lock);
+	g_mutex_unlock(nr_lock);
 }
 
 void songvec_destroy(struct songvec *sv)
 {
-	pthread_mutex_lock(&nr_lock);
+	g_mutex_lock(nr_lock);
 	sv->nr = 0;
-	pthread_mutex_unlock(&nr_lock);
+	g_mutex_unlock(nr_lock);
 	if (sv->base) {
 		free(sv->base);
 		sv->base = NULL;
@@ -99,7 +111,7 @@ songvec_for_each(const struct songvec *sv,
 	size_t i;
 	size_t prev_nr;
 
-	pthread_mutex_lock(&nr_lock);
+	g_mutex_lock(nr_lock);
 	for (i = 0; i < sv->nr; ) {
 		struct song *song = sv->base[i];
 
@@ -107,14 +119,14 @@ songvec_for_each(const struct songvec *sv,
 		assert(*song->url);
 
 		prev_nr = sv->nr;
-		pthread_mutex_unlock(&nr_lock); /* fn() may block */
+		g_mutex_unlock(nr_lock); /* fn() may block */
 		if (fn(song, arg) < 0)
 			return -1;
-		pthread_mutex_lock(&nr_lock); /* sv->nr may change in fn() */
+		g_mutex_lock(nr_lock); /* sv->nr may change in fn() */
 		if (prev_nr == sv->nr)
 			++i;
 	}
-	pthread_mutex_unlock(&nr_lock);
+	g_mutex_unlock(nr_lock);
 
 	return 0;
 }

src/songvec.h

@@ -8,6 +8,10 @@ struct songvec {
 	size_t nr;
 };
 
+void songvec_init(void);
+
+void songvec_deinit(void);
+
 void songvec_sort(struct songvec *sv);
 
 struct song *