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d76ed9a9 AS |
1 | /* recdb.h - recursive/record database implementation |
2 | * Copyright 2000-2004 srvx Development Team | |
3 | * | |
83ff05c3 | 4 | * This file is part of x3. |
d76ed9a9 AS |
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 | #ifndef _recdb_h | |
22 | #define _recdb_h | |
23 | ||
24 | #include "common.h" | |
25 | #include "dict.h" | |
26 | ||
27 | enum recdb_type { | |
28 | RECDB_INVALID, | |
29 | RECDB_QSTRING, | |
30 | RECDB_OBJECT, | |
31 | RECDB_STRING_LIST | |
32 | }; | |
33 | ||
34 | struct record_data { | |
35 | enum recdb_type type; | |
36 | union { | |
37 | char *qstring; | |
38 | dict_t object; | |
39 | struct string_list *slist; | |
40 | void *whatever; | |
41 | } d; | |
42 | }; | |
43 | ||
44 | #define SET_RECORD_QSTRING(rec, qs) do { const char *s = (qs); (rec)->type = RECDB_QSTRING; (rec)->d.qstring = (s) ? strdup(s) : NULL; } while (0) | |
45 | #define GET_RECORD_QSTRING(rec) (((rec)->type == RECDB_QSTRING) ? (rec)->d.qstring : 0) | |
46 | #define SET_RECORD_OBJECT(rec, obj) do { (rec)->type = RECDB_OBJECT; (rec)->d.object = (obj); } while (0) | |
47 | #define GET_RECORD_OBJECT(rec) (((rec)->type == RECDB_OBJECT) ? (rec)->d.object : 0) | |
48 | #define SET_RECORD_STRING_LIST(rec, sl) do { (rec)->type = RECDB_STRING_LIST; (rec)->d.slist = (sl); } while (0) | |
49 | #define GET_RECORD_STRING_LIST(rec) (((rec)->type == RECDB_STRING_LIST) ? (rec)->d.slist : 0) | |
50 | ||
51 | struct string_list { | |
52 | unsigned int used, size; | |
53 | char **list; | |
54 | }; | |
55 | void string_list_append(struct string_list *slist, char *string); | |
56 | struct string_list *string_list_copy(struct string_list *orig); | |
57 | void string_list_sort(struct string_list *slist); | |
58 | #define string_list_delete(slist, n) (free((slist)->list[n]), (slist)->list[n] = (slist)->list[--(slist)->used]) | |
59 | ||
60 | /* allocation functions */ | |
61 | struct string_list *alloc_string_list(int size); | |
62 | struct record_data *alloc_record_data_qstring(const char *string); | |
63 | struct record_data *alloc_record_data_object(dict_t obj); | |
64 | struct record_data *alloc_record_data_string_list(struct string_list *slist); | |
65 | dict_t alloc_database(void); | |
66 | #define alloc_object() alloc_database() | |
67 | ||
68 | /* misc operations */ | |
69 | /* note: once you give a string list a string, it frees it automatically */ | |
70 | struct record_data *database_get_path(dict_t db, const char *path); | |
71 | void *database_get_data(dict_t db, const char *path, enum recdb_type type); | |
72 | ||
73 | /* freeing data */ | |
74 | void free_string_list(struct string_list *slist); | |
75 | void free_record_data(void *rdata); | |
76 | #define free_object(obj) dict_delete(obj) | |
77 | #define free_database(db) dict_delete(db) | |
78 | ||
79 | /* parsing stuff from disk */ | |
80 | const char *parse_record(const char *text, char **pname, struct record_data **prd); | |
81 | dict_t parse_database(const char *filename); | |
82 | ||
83 | #endif |