Add an item-free method to the thread-pool

include/rofi-types.h

@@ -370,6 +370,7 @@ typedef struct rofi_int_matcher_t {
  */
 typedef struct _thread_state {
   void (*callback)(struct _thread_state *t, gpointer data);
+  void (*free)(void *);
   int priority;
 } thread_state;
 

source/rofi-icon-fetcher.c

@@ -86,6 +86,8 @@ typedef struct {
   IconFetcherNameEntry *entry;
 } IconFetcherEntry;
 
+// Free method.
+static void rofi_icon_fetch_entry_free(gpointer data);
 /**
  * The icon fetcher internal state.
  */
@@ -361,7 +363,7 @@ static void rofi_icon_fetcher_worker(thread_state *sdata,
       icon_path, sentry->wsize, sentry->hsize, TRUE, &error);
   if (error != NULL) {
     g_warning("Failed to load image: |%s| %d %d %s (%p)", icon_path,
-              sentry->wsize, sentry->hsize, error->message, (void*)pb);
+              sentry->wsize, sentry->hsize, error->message, (void *)pb);
     g_error_free(error);
     if (pb) {
       g_object_unref(pb);
@@ -411,6 +413,7 @@ uint32_t rofi_icon_fetcher_query_advanced(const char *name, const int wsize,
 
   // Push into fetching queue.
   sentry->state.callback = rofi_icon_fetcher_worker;
+  sentry->state.free = rofi_icon_fetch_entry_free;
   sentry->state.priority = G_PRIORITY_LOW;
   g_thread_pool_push(tpool, sentry, NULL);
 

source/view.c

@@ -1460,6 +1460,7 @@ static gboolean rofi_view_refilter_real(RofiViewState *state) {
       states[i].plen = plen;
       states[i].pattern = pattern;
       states[i].st.callback = filter_elements;
+      states[i].st.free = NULL;
       states[i].st.priority = G_PRIORITY_HIGH;
       if (i > 0) {
         g_thread_pool_push(tpool, &states[i], NULL);
@@ -2650,6 +2651,15 @@ static int rofi_thread_workers_sort(gconstpointer a, gconstpointer b,
   return tsa->priority - tsb->priority;
 }
 
+static void rofi_thread_pool_state_free(gpointer data) {
+  if (data) {
+    thread_state *ts = (thread_state *)data;
+    if (ts->free) {
+      ts->free(data);
+    }
+  }
+}
+
 void rofi_view_workers_initialize(void) {
   TICK_N("Setup Threadpool, start");
   if (config.threads == 0) {
@@ -2661,8 +2671,9 @@ void rofi_view_workers_initialize(void) {
   }
   // Create thread pool
   GError *error = NULL;
-  tpool = g_thread_pool_new(rofi_view_call_thread, NULL, config.threads, FALSE,
-                            &error);
+  tpool = g_thread_pool_new_full(rofi_view_call_thread, NULL,
+                                 rofi_thread_pool_state_free, config.threads,
+                                 FALSE, &error);
   if (error == NULL) {
     // Idle threads should stick around for a max of 60 seconds.
     g_thread_pool_set_max_idle_time(60000);