X-Git-Url: https://www.tinc-vpn.org/git/browse?a=blobdiff_plain;f=lib%2Fevent.c;fp=lib%2Fevent.c;h=3c54c6926908804058bbb17ce41df1a4a6bb1a84;hb=a9bb66367df82d062175f2b9b4bf236d77ae3ff1;hp=0000000000000000000000000000000000000000;hpb=474aab6325bf94724874cb74a9b56d9da739e1b8;p=tinc

diff --git a/lib/event.c b/lib/event.c
new file mode 100644
index 00000000..3c54c692
--- /dev/null
+++ b/lib/event.c
@@ -0,0 +1,110 @@
+/*
+    event.c -- event queue
+    Copyright (C) 2002 Guus Sliepen <guus@sliepen.warande.net>,
+                  2002 Ivo Timmermans <itimmermans@bigfoot.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id: event.c,v 1.1 2002/05/02 13:11:55 zarq Exp $
+*/
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <xalloc.h>
+#include <string.h>
+#include <utils.h>
+#include <avl_tree.h>
+#include <time.h>
+
+#include "event.h"
+
+#include "system.h"
+
+avl_tree_t *event_tree;
+extern time_t now;
+
+int id;
+
+int event_compare(event_t *a, event_t *b)
+{
+  if(a->time > b->time)
+    return 1;
+  if(a->time < b->time)
+    return -1;
+  return a->id - b->id; 
+}
+
+void init_events(void)
+{
+cp
+  event_tree = avl_alloc_tree((avl_compare_t)event_compare, NULL);
+cp
+}
+
+void exit_events(void)
+{
+cp
+  avl_delete_tree(event_tree);
+cp
+}
+
+event_t *new_event(void)
+{
+  event_t *event;
+cp
+  event = (event_t *)xmalloc_and_zero(sizeof(*event));
+cp
+  return event;
+}
+
+void free_event(event_t *event)
+{
+cp
+  free(event);
+cp
+}
+
+void event_add(event_t *event)
+{
+cp
+  event->id = ++id;
+  avl_insert(event_tree, event);
+cp
+}
+
+void event_del(event_t *event)
+{
+cp
+  avl_delete(event_tree, event);
+cp
+}
+
+event_t *get_expired_event(void)
+{
+  event_t *event;
+cp
+  if(event_tree->head)
+  {
+    event = (event_t *)event_tree->head->data;
+    if(event->time < now)
+    {
+      avl_delete(event_tree, event);
+      return event;
+    }
+  }
+cp  
+  return NULL;
+}