d3372da9 |
1 | /* |
2 | * Dolda Connect - Modular multiuser Direct Connect-style client |
3 | * Copyright (C) 2004 Fredrik Tolf (fredrik@dolda2000.com) |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
18 | */ |
19 | #ifndef _MODULE_H |
20 | #define _MODULE_H |
21 | |
22 | #include <stdio.h> |
23 | |
24 | #include "conf.h" |
25 | |
26 | struct module |
27 | { |
28 | struct module *next; |
29 | char *name; |
30 | /* Called before the configuration file is read. Must either |
31 | * succeed or call exit. Note that it is called both at startup |
32 | * and when SIGHUP has been received (then with hup = 1). */ |
33 | void (*preinit)(int hup); |
34 | /* Called when the configuration file has been read. Return zero |
35 | * on success and non-zero on failure. Note, as with preinit, that |
36 | * it can be called both at startup and after SIHUP. */ |
37 | int (*init)(int hup); |
38 | /* Called every "cycle". Its return value determines whether the |
39 | * module still has work to do, and thus determines whether the |
40 | * next pollsocks should block or not. Return non-zero whenever |
41 | * the module has more work to do. */ |
42 | int (*run)(void); |
43 | /* Called when the daemon is shutting down. */ |
44 | void (*terminate)(void); |
45 | struct configmod conf; |
46 | }; |
47 | |
48 | #define MODULE(mod) \ |
49 | static void __attribute__ ((constructor)) __regmod(void) \ |
50 | { \ |
51 | extern struct module *modchain; \ |
52 | \ |
53 | if(mod.name == NULL) \ |
54 | { \ |
55 | fprintf(stderr, "module at %p has no name", &mod); \ |
56 | exit(1); \ |
57 | } \ |
58 | mod.conf.name = mod.name; \ |
59 | mod.next = modchain; \ |
60 | modchain = &mod; \ |
61 | } |
62 | |
63 | void regmod(struct module *); |
64 | |
65 | #endif |