1 /* conf.c - Config file reader
2 * Copyright 2000-2004 srvx Development Team
3 *
4 * This file is part of srvx.
5 *
6 * srvx 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
conf_register_reload(conf_reload_func crf)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
conf_call_reload_funcs(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
conf_read(const char * conf_file_name)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
conf_close(void)76 conf_close(void)
77 {
78 free_database(conf_db);
79 free(reload_funcs);
80 }
81
82 struct record_data *
conf_get_node(const char * full_path)83 conf_get_node(const char *full_path)
84 {
85 return database_get_path(conf_db, full_path);
86 }
87
88 void *
conf_get_data(const char * full_path,enum recdb_type type)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*
conf_enum_root(dict_iterator_f it,void * extra)95 conf_enum_root(dict_iterator_f it, void *extra)
96 {
97 return dict_foreach(conf_db, it, extra);
98 }
99