2 hooks.c -- hooks management
3 Copyright (C) 2002 Guus Sliepen <guus@sliepen.warande.net>,
4 2002 Ivo Timmermans <ivo@o2w.nl>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 $Id: hooks.c,v 1.1.2.1 2002/04/16 17:00:02 zarq Exp $
31 avl_tree_t *hooks_tree = NULL;
33 static int hook_type_compare(const void *a, const void *b)
35 return strcmp((const char*)a, (const char*)b);
38 static int hook_dummy_compare(const void *a, const void *b)
47 void run_hooks(const char *type, ...)
55 t = avl_search(hooks_tree, type);
60 for(avlnode = t->head; avlnode; avlnode = avlnode->next)
62 assert(avlnode->data);
63 ((hook_function_t*)(avlnode->data))(type, args);
68 void add_hook(const char *type, hook_function_t *hook)
73 hooks_tree = avl_alloc_tree(hook_type_compare, NULL);
75 t = avl_search(hooks_tree, type);
78 t = avl_alloc_tree(hook_dummy_compare, NULL);
79 avl_insert(log_hooks_tree, (void*)t);
82 avl_insert(t, (void*)hook);
85 void del_hook(const char *type, hook_function_t *hook)
92 t = avl_search(hooks_tree, type);
96 avl_delete(t, (void*)hook);