use n_stack for history

container.c

@@ -263,4 +263,29 @@ void l_sort(list * l, int (*f) (void *, void *))
         free(old_list);
 }
 
+void n_stack_push(n_stack **s, notification *n)
+{
+        if (!n)
+                return;
+
+        n_stack *new = malloc(sizeof(n_stack));
+        new->n = n;
+        new->next = *s;
+        *s = new;
+}
+
+notification *n_stack_pop(n_stack **s)
+{
+        if (!s || !*s)
+                return NULL;
+
+        n_stack *head = *s;
+        *s = (*s)->next;
+
+        notification *n = head->n;
+        free(head);
+
+        return n;
+}
+
 /* vim: set ts=8 sw=8 tw=0: */

container.h

@@ -1,6 +1,8 @@
 #ifndef _LIST_H
 #define _LIST_H
 
+#include "dunst.h"
+
 typedef struct _l_node {
         struct _l_node *next;
         void *data;
@@ -10,6 +12,11 @@ typedef struct _list {
         l_node *head;
 } list;
 
+typedef struct _n_stack {
+        notification *n;
+        struct _n_stack *next;
+} n_stack;
+
 /* append to end of list */
 int l_push(list * l, void *data);
 
@@ -54,6 +61,24 @@ int l_move(list * from, list * to, l_node * node);
 void l_sort(list * l, int (*f) (void *, void *));
 
 list *l_init(void);
-#endif
 
+
+/************
+ * stack
+ */
+
+/**
+ * push notification onto stack
+ * creates a new stack if *s == NULL
+ */
+void n_stack_push(n_stack **s, notification *n);
+
+/**
+ * remove and return notification from stack
+ * sets *s to NULL if stack is empty
+ */
+notification *n_stack_pop(n_stack **s);
+
+
+#endif
 /* vim: set ts=8 sw=8 tw=0: */

dunst.c

@@ -84,7 +84,7 @@ bool deprecated_dunstrc_shortcuts = false;
 /* notification lists */
 list *notification_queue = NULL;        /* all new notifications get into here */
 list *displayed_notifications = NULL;   /* currently displayed notifications */
-list *notification_history = NULL;      /* history of displayed notifications */
+n_stack *n_history = NULL;      /* history of displayed notifications */
 
 /* misc funtions */
 void apply_rules(notification * n);
@@ -884,22 +884,15 @@ void move_all_to_history()
 
 void history_pop(void)
 {
-        l_node *iter;
-        notification *data;
 
-        /* nothing to do */
-        if (l_is_empty(notification_history)) {
+        if (!n_history)
                 return;
-        }
 
-        for (iter = notification_history->head; iter->next; iter = iter->next) ;
-        data = (notification *) iter->data;
-        data->redisplayed = true;
-        data->start = 0;
-        if (sticky_history) {
-                data->timeout = 0;
-        }
-        l_move(notification_history, notification_queue, iter);
+        notification *n = n_stack_pop(&n_history);
+        n->redisplayed = true;
+        n->start = 0;
+        n->timeout = sticky_history ? 0 : n->timeout;
+        l_push(notification_queue, n);
 
         if (!visible) {
                 map_win();
@@ -1040,8 +1033,8 @@ int close_notification_by_id(int id, int reason)
         for (iter = displayed_notifications->head; iter; iter = iter->next) {
                 notification *n = (notification *) iter->data;
                 if (n->id == id) {
-                        l_move(displayed_notifications, notification_history,
-                               iter);
+                        l_remove(displayed_notifications, iter);
+                        n_stack_push(&n_history, n);
                         target = n;
                         break;
                 }
@@ -1050,7 +1043,8 @@ int close_notification_by_id(int id, int reason)
         for (iter = notification_queue->head; iter; iter = iter->next) {
                 notification *n = (notification *) iter->data;
                 if (n->id == id) {
-                        l_move(notification_queue, notification_history, iter);
+                        l_remove(notification_queue, iter);
+                        n_stack_push(&n_history, n);
                         target = n;
                         break;
                 }
@@ -1677,7 +1671,6 @@ int main(int argc, char *argv[])
         now = time(&now);
 
         notification_queue = l_init();
-        notification_history = l_init();
         displayed_notifications = l_init();
         r_line_cache_init(&line_cache);