Use GCond for rendering thread

render.c

@@ -10,17 +10,15 @@ render_job(void* data)
   render_thread_t* render_thread = (render_thread_t*) data;
 
   while(true) {
-    g_static_mutex_lock(&(render_thread->lock));
+    g_mutex_lock(render_thread->lock);
 
     if(girara_list_size(render_thread->list) <= 0) {
-      g_static_mutex_unlock(&(render_thread->lock));
-      g_thread_yield();
-      continue;
+      g_cond_wait(render_thread->cond, render_thread->lock);
     }
 
     zathura_page_t* page = (zathura_page_t*) girara_list_nth(render_thread->list, 0);
     girara_list_remove(render_thread->list, page);
-    g_static_mutex_unlock(&(render_thread->lock));
+    g_mutex_unlock(render_thread->lock);
 
     printf("Rendered %d\n", page->number);
 
@@ -39,6 +37,12 @@ render_init(void)
     goto error_ret;
   }
 
+  /* init */
+  render_thread->list   = NULL;
+  render_thread->thread = NULL;
+  render_thread->cond   = NULL;
+
+  /* setup */
   render_thread->list = girara_list_new();
 
   if(!render_thread->list) {
@@ -51,12 +55,34 @@ render_init(void)
     goto error_free;
   }
 
-  g_static_mutex_init(&(render_thread->lock));
+  render_thread->cond = g_cond_new();
+
+  if(!render_thread->cond) {
+    goto error_free;
+  }
+
+  render_thread->lock = g_mutex_new();
+
+  if(!render_thread->lock) {
+    goto error_free;
+  }
 
   return render_thread;
 
 error_free:
 
+  if(render_thread->list) {
+    girara_list_free(render_thread->list);
+  }
+
+  if(render_thread->cond) {
+    g_cond_free(render_thread->cond);
+  }
+
+  if(render_thread->lock) {
+    g_mutex_free(render_thread->lock);
+  }
+
   free(render_thread);
 
 error_ret:
@@ -71,8 +97,17 @@ render_free(render_thread_t* render_thread)
     return;
   }
 
-  girara_list_free(render_thread->list);
-  g_static_mutex_free(&(render_thread->lock));
+  if(render_thread->list) {
+    girara_list_free(render_thread->list);
+  }
+
+  if(render_thread->cond) {
+    g_cond_free(render_thread->cond);
+  }
+
+  if(render_thread->lock) {
+    g_mutex_free(render_thread->lock);
+  }
 }
 
 bool
@@ -82,11 +117,12 @@ render_page(render_thread_t* render_thread, zathura_page_t* page)
     return false;
   }
 
-  g_static_mutex_lock(&(render_thread->lock));
+  g_mutex_lock(render_thread->lock);
   if(!girara_list_contains(render_thread->list, page)) {
     girara_list_append(render_thread->list, page);
   }
-  g_static_mutex_unlock(&(render_thread->lock));
+  g_cond_signal(render_thread->cond);
+  g_mutex_unlock(render_thread->lock);
 
   return true;
 }

render.h

@@ -13,7 +13,8 @@ typedef struct render_thread_s
 {
   girara_list_t* list;
   GThread* thread;
-  GStaticMutex lock;
+  GMutex* lock;
+  GCond* cond;
 } render_thread_t;
 
 render_thread_t* render_init(void);