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1 | /* conf.c - Config file reader | |
2 | * Copyright 2000-2004 srvx Development Team | |
3 | * | |
4 | * This file is part of x3. | |
5 | * | |
6 | * x3 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 srvx; if not, write to the Free Software Foundation, | |
18 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
19 | */ | |
20 | ||
21 | #include "conf.h" | |
22 | #include "log.h" | |
23 | ||
24 | static dict_t conf_db; | |
25 | static conf_reload_func *reload_funcs; | |
26 | static int num_rfs, size_rfs; | |
27 | ||
28 | void | |
29 | conf_register_reload(conf_reload_func crf) | |
30 | { | |
31 | if (num_rfs >= size_rfs) { | |
32 | if (reload_funcs) { | |
33 | size_rfs <<= 1; | |
34 | reload_funcs = realloc(reload_funcs, size_rfs*sizeof(conf_reload_func)); | |
35 | } else { | |
36 | size_rfs = 8; | |
37 | reload_funcs = calloc(size_rfs, sizeof(conf_reload_func)); | |
38 | } | |
39 | } | |
40 | reload_funcs[num_rfs++] = crf; | |
41 | if (conf_db) { | |
42 | crf(); | |
43 | } | |
44 | } | |
45 | ||
46 | void | |
47 | conf_call_reload_funcs(void) | |
48 | { | |
49 | int i; | |
50 | for (i=0; i<num_rfs; i++) reload_funcs[i](); | |
51 | } | |
52 | ||
53 | int | |
54 | conf_read(const char *conf_file_name) | |
55 | { | |
56 | dict_t old_conf = conf_db; | |
57 | if (!(conf_db = parse_database(conf_file_name))) { | |
58 | goto fail; | |
59 | } | |
60 | if (reload_funcs) { | |
61 | conf_call_reload_funcs(); | |
62 | } | |
63 | if (old_conf && old_conf != conf_db) { | |
64 | free_database(old_conf); | |
65 | } | |
66 | return 1; | |
67 | ||
68 | fail: | |
69 | log_module(MAIN_LOG, LOG_ERROR, "Reverting to previous configuration."); | |
70 | free_database(conf_db); | |
71 | conf_db = old_conf; | |
72 | return 0; | |
73 | } | |
74 | ||
75 | void | |
76 | conf_close(void) | |
77 | { | |
78 | free_database(conf_db); | |
79 | free(reload_funcs); | |
80 | } | |
81 | ||
82 | struct record_data * | |
83 | conf_get_node(const char *full_path) | |
84 | { | |
85 | return database_get_path(conf_db, full_path); | |
86 | } | |
87 | ||
88 | void * | |
89 | conf_get_data(const char *full_path, enum recdb_type type) | |
90 | { | |
91 | return database_get_data(conf_db, full_path, type); | |
92 | } | |
93 | ||
94 | const char* | |
95 | conf_enum_root(dict_iterator_f it, void *extra) | |
96 | { | |
97 | return dict_foreach(conf_db, it, extra); | |
98 | } |