jabberd2  2.2.17
feature.c
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1 /*
2  * jabberd - Jabber Open Source Server
3  * Copyright (c) 2002 Jeremie Miller, Thomas Muldowney,
4  * Ryan Eatmon, Robert Norris
5  *
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.
10  *
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.
15  *
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., 59 Temple Place, Suite 330, Boston, MA02111-1307USA
19  */
20 
21 #include "sm.h"
22 
30 /*
31  * these are simple wrappers around xhash for the moment. perhaps a little
32  * redundant, but they will give a good abstraction, and make it easier to
33  * add stuff in the future .. f-neg comes to mind.
34  */
35 
37 void feature_register(sm_t sm, char *feature)
38 {
39  log_debug(ZONE, "registering feature %s", feature);
40 
41  xhash_put(sm->features, pstrdup(xhash_pool(sm->features), feature), (void *) ((long) xhash_get(sm->features, feature) + 1));
42 }
43 
45 void feature_unregister(sm_t sm, char *feature)
46 {
47  int refcount = (int) (long) xhash_get(sm->features, feature);
48 
49  log_debug(ZONE, "unregistering feature %s", feature);
50 
51  if (refcount == 1) {
52  xhash_zap(sm->features, feature);
53  } else if (refcount > 1) {
54  xhash_put(sm->features, feature, (void *) ((long) refcount - 1));
55  }
56 }