1 /*****************************************************************************
2 * vlc_configuration.h : configuration management module
3 * This file describes the programming interface for the configuration module.
4 * It includes functions allowing to declare, get or set configuration options.
5 *****************************************************************************
6 * Copyright (C) 1999-2006 VLC authors and VideoLAN
9 * Authors: Gildas Bazin <gbazin@videolan.org>
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation; either version 2.1 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program; if not, write to the Free Software Foundation,
23 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
26 #ifndef VLC_CONFIGURATION_H
27 #define VLC_CONFIGURATION_H 1
31 * This file describes the programming interface for the configuration module.
32 * It includes functions allowing to declare, get or set configuration options.
39 struct config_category_t
53 typedef int (*vlc_string_list_cb)(vlc_object_t *, const char *,
56 struct module_config_t
58 char *psz_type; /* Configuration subtype */
59 char *psz_name; /* Option name */
60 char *psz_text; /* Short comment on the configuration option */
61 char *psz_longtext; /* Long comment on the configuration option */
62 module_value_t value; /* Option value */
68 char ** ppsz_list; /* List of possible values for the option */
69 int *pi_list; /* Idem for integers */
70 char **ppsz_list_text; /* Friendly names for list values */
71 int i_list; /* Options list size */
72 vlc_string_list_cb pf_update_list;
73 uint8_t i_type; /* Configuration type */
74 char i_short; /* Optional short option name */
77 unsigned b_advanced:1; /* Flag to indicate an advanced option */
78 unsigned b_internal:1; /* Flag to indicate option is not to be shown */
79 unsigned b_unsaveable:1; /* Config should not be saved */
80 unsigned b_safe:1; /* Safe to use in web plugins and playlists */
86 /*****************************************************************************
87 * Prototypes - these methods are used to get, set or manipulate configuration
89 *****************************************************************************/
90 VLC_API int config_GetType(vlc_object_t *, const char *) VLC_USED;
91 VLC_API int64_t config_GetInt(vlc_object_t *, const char *) VLC_USED;
92 VLC_API void config_PutInt(vlc_object_t *, const char *, int64_t);
93 VLC_API float config_GetFloat(vlc_object_t *, const char *) VLC_USED;
94 VLC_API void config_PutFloat(vlc_object_t *, const char *, float);
95 VLC_API char * config_GetPsz(vlc_object_t *, const char *) VLC_USED VLC_MALLOC;
96 VLC_API void config_PutPsz(vlc_object_t *, const char *, const char *);
97 VLC_API ssize_t config_GetIntChoices(vlc_object_t *, const char *,
98 int64_t **, char ***) VLC_USED;
99 VLC_API ssize_t config_GetPszChoices(vlc_object_t *, const char *,
100 char ***, char ***) VLC_USED;
102 VLC_API int config_SaveConfigFile( vlc_object_t * );
103 #define config_SaveConfigFile(a) config_SaveConfigFile(VLC_OBJECT(a))
105 VLC_API void config_ResetAll( vlc_object_t * );
106 #define config_ResetAll(a) config_ResetAll(VLC_OBJECT(a))
108 VLC_API module_config_t * config_FindConfig( vlc_object_t *, const char * ) VLC_USED;
109 VLC_API char * config_GetDataDir(void) VLC_USED VLC_MALLOC;
110 VLC_API char *config_GetLibDir(void) VLC_USED;
111 VLC_API const char * config_GetConfDir( void ) VLC_USED;
113 typedef enum vlc_userdir
115 VLC_HOME_DIR, /* User's home */
116 VLC_CONFIG_DIR, /* VLC-specific configuration directory */
117 VLC_DATA_DIR, /* VLC-specific data directory */
118 VLC_CACHE_DIR, /* VLC-specific user cached data directory */
119 /* Generic directories (same as XDG) */
120 VLC_DESKTOP_DIR=0x80,
130 VLC_API char * config_GetUserDir( vlc_userdir_t ) VLC_USED VLC_MALLOC;
132 VLC_API void config_AddIntf( vlc_object_t *, const char * );
133 VLC_API void config_RemoveIntf( vlc_object_t *, const char * );
134 VLC_API bool config_ExistIntf( vlc_object_t *, const char * ) VLC_USED;
136 #define config_GetType(a,b) config_GetType(VLC_OBJECT(a),b)
137 #define config_GetInt(a,b) config_GetInt(VLC_OBJECT(a),b)
138 #define config_PutInt(a,b,c) config_PutInt(VLC_OBJECT(a),b,c)
139 #define config_GetFloat(a,b) config_GetFloat(VLC_OBJECT(a),b)
140 #define config_PutFloat(a,b,c) config_PutFloat(VLC_OBJECT(a),b,c)
141 #define config_GetPsz(a,b) config_GetPsz(VLC_OBJECT(a),b)
142 #define config_PutPsz(a,b,c) config_PutPsz(VLC_OBJECT(a),b,c)
144 #define config_AddIntf(a,b) config_AddIntf(VLC_OBJECT(a),b)
145 #define config_RemoveIntf(a,b) config_RemoveIntf(VLC_OBJECT(a),b)
146 #define config_ExistIntf(a,b) config_ExistIntf(VLC_OBJECT(a),b)
148 /****************************************************************************
150 ****************************************************************************/
151 struct config_chain_t
153 config_chain_t *p_next; /**< Pointer on the next config_chain_t element */
155 char *psz_name; /**< Option name */
156 char *psz_value; /**< Option value */
161 * - create all options in the array ppsz_options (var_Create).
162 * - parse the given linked list of config_chain_t and set the value (var_Set).
164 * The option names will be created by adding the psz_prefix prefix.
166 VLC_API void config_ChainParse( vlc_object_t *, const char *psz_prefix, const char *const *ppsz_options, config_chain_t * );
167 #define config_ChainParse( a, b, c, d ) config_ChainParse( VLC_OBJECT(a), b, c, d )
170 * This function will parse a configuration string (psz_opts) and
171 * - set all options for this module in a chained list (*pp_cfg)
172 * - returns a pointer on the next module if any.
174 * The string format is
175 * module{option=*,option=*}
177 * The options values are unescaped using config_StringUnescape.
179 VLC_API const char *config_ChainParseOptions( config_chain_t **pp_cfg, const char *ppsz_opts );
182 * This function will parse a configuration string (psz_string) and
183 * - set the module name (*ppsz_name)
184 * - set all options for this module in a chained list (*pp_cfg)
185 * - returns a pointer on the next module if any.
187 * The string format is
188 * module{option=*,option=*}[:modulenext{option=*,...}]
190 * The options values are unescaped using config_StringUnescape.
192 VLC_API char *config_ChainCreate( char **ppsz_name, config_chain_t **pp_cfg, const char *psz_string ) VLC_USED VLC_MALLOC;
195 * This function will release a linked list of config_chain_t
196 * (Including the head)
198 VLC_API void config_ChainDestroy( config_chain_t * );
201 * This function will duplicate a linked list of config_chain_t
203 VLC_API config_chain_t * config_ChainDuplicate( const config_chain_t * ) VLC_USED VLC_MALLOC;
206 * This function will unescape a string in place and will return a pointer on
208 * No memory is allocated by it (unlike config_StringEscape).
209 * If NULL is given as parameter nothing will be done (NULL will be returned).
211 * The following sequences will be unescaped (only one time):
214 VLC_API char * config_StringUnescape( char *psz_string );
217 * This function will escape a string that can be unescaped by
218 * config_StringUnescape.
219 * The returned value is allocated by it. You have to free it once you
220 * do not need it anymore (unlike config_StringUnescape).
221 * If NULL is given as parameter nothing will be done (NULL will be returned).
223 * The escaped characters are ' " and \
225 VLC_API char * config_StringEscape( const char *psz_string ) VLC_USED VLC_MALLOC;
231 #endif /* _VLC_CONFIGURATION_H */