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 struct module_config_t
55 char *psz_type; /* Configuration subtype */
56 char *psz_name; /* Option name */
57 char *psz_text; /* Short comment on the configuration option */
58 char *psz_longtext; /* Long comment on the configuration option */
59 module_value_t value; /* Option value */
65 char ** ppsz_list; /* List of possible values for the option */
66 int *pi_list; /* Idem for integers */
67 char **ppsz_list_text; /* Friendly names for list values */
68 int i_list; /* Options list size */
69 vlc_callback_t pf_update_list; /* Callback to initialize dropdown lists */
70 uint8_t i_type; /* Configuration type */
71 char i_short; /* Optional short option name */
74 unsigned b_advanced:1; /* Flag to indicate an advanced option */
75 unsigned b_internal:1; /* Flag to indicate option is not to be shown */
76 unsigned b_unsaveable:1; /* Config should not be saved */
77 unsigned b_safe:1; /* Safe to use in web plugins and playlists */
80 int i_action; /* actions list size */
81 vlc_callback_t *ppf_action; /* List of possible actions for a config */
82 char **ppsz_action_text; /* Friendly names for actions */
88 /*****************************************************************************
89 * Prototypes - these methods are used to get, set or manipulate configuration
91 *****************************************************************************/
92 VLC_API int config_GetType(vlc_object_t *, const char *) VLC_USED;
93 VLC_API int64_t config_GetInt(vlc_object_t *, const char *) VLC_USED;
94 VLC_API void config_PutInt(vlc_object_t *, const char *, int64_t);
95 VLC_API float config_GetFloat(vlc_object_t *, const char *) VLC_USED;
96 VLC_API void config_PutFloat(vlc_object_t *, const char *, float);
97 VLC_API char * config_GetPsz(vlc_object_t *, const char *) VLC_USED VLC_MALLOC;
98 VLC_API void config_PutPsz(vlc_object_t *, const char *, const char *);
99 VLC_API ssize_t config_GetIntChoices(vlc_object_t *, const char *,
100 int64_t **, char ***) VLC_USED;
101 VLC_API ssize_t config_GetPszChoices(vlc_object_t *, const char *,
102 char ***, char ***) VLC_USED;
104 VLC_API int config_SaveConfigFile( vlc_object_t * );
105 #define config_SaveConfigFile(a) config_SaveConfigFile(VLC_OBJECT(a))
107 VLC_API void config_ResetAll( vlc_object_t * );
108 #define config_ResetAll(a) config_ResetAll(VLC_OBJECT(a))
110 VLC_API module_config_t * config_FindConfig( vlc_object_t *, const char * ) VLC_USED;
111 VLC_API char * config_GetDataDir(void) VLC_USED VLC_MALLOC;
112 VLC_API char *config_GetLibDir(void) VLC_USED;
113 VLC_API const char * config_GetConfDir( void ) VLC_USED;
115 typedef enum vlc_userdir
117 VLC_HOME_DIR, /* User's home */
118 VLC_CONFIG_DIR, /* VLC-specific configuration directory */
119 VLC_DATA_DIR, /* VLC-specific data directory */
120 VLC_CACHE_DIR, /* VLC-specific user cached data directory */
121 /* Generic directories (same as XDG) */
122 VLC_DESKTOP_DIR=0x80,
132 VLC_API char * config_GetUserDir( vlc_userdir_t ) VLC_USED VLC_MALLOC;
134 VLC_API void config_AddIntf( vlc_object_t *, const char * );
135 VLC_API void config_RemoveIntf( vlc_object_t *, const char * );
136 VLC_API bool config_ExistIntf( vlc_object_t *, const char * ) VLC_USED;
138 #define config_GetType(a,b) config_GetType(VLC_OBJECT(a),b)
139 #define config_GetInt(a,b) config_GetInt(VLC_OBJECT(a),b)
140 #define config_PutInt(a,b,c) config_PutInt(VLC_OBJECT(a),b,c)
141 #define config_GetFloat(a,b) config_GetFloat(VLC_OBJECT(a),b)
142 #define config_PutFloat(a,b,c) config_PutFloat(VLC_OBJECT(a),b,c)
143 #define config_GetPsz(a,b) config_GetPsz(VLC_OBJECT(a),b)
144 #define config_PutPsz(a,b,c) config_PutPsz(VLC_OBJECT(a),b,c)
146 #define config_AddIntf(a,b) config_AddIntf(VLC_OBJECT(a),b)
147 #define config_RemoveIntf(a,b) config_RemoveIntf(VLC_OBJECT(a),b)
148 #define config_ExistIntf(a,b) config_ExistIntf(VLC_OBJECT(a),b)
150 /****************************************************************************
152 ****************************************************************************/
153 struct config_chain_t
155 config_chain_t *p_next; /**< Pointer on the next config_chain_t element */
157 char *psz_name; /**< Option name */
158 char *psz_value; /**< Option value */
163 * - create all options in the array ppsz_options (var_Create).
164 * - parse the given linked list of config_chain_t and set the value (var_Set).
166 * The option names will be created by adding the psz_prefix prefix.
168 VLC_API void config_ChainParse( vlc_object_t *, const char *psz_prefix, const char *const *ppsz_options, config_chain_t * );
169 #define config_ChainParse( a, b, c, d ) config_ChainParse( VLC_OBJECT(a), b, c, d )
172 * This function will parse a configuration string (psz_opts) and
173 * - set all options for this module in a chained list (*pp_cfg)
174 * - returns a pointer on the next module if any.
176 * The string format is
177 * module{option=*,option=*}
179 * The options values are unescaped using config_StringUnescape.
181 VLC_API const char *config_ChainParseOptions( config_chain_t **pp_cfg, const char *ppsz_opts );
184 * This function will parse a configuration string (psz_string) and
185 * - set the module name (*ppsz_name)
186 * - set all options for this module in a chained list (*pp_cfg)
187 * - returns a pointer on the next module if any.
189 * The string format is
190 * module{option=*,option=*}[:modulenext{option=*,...}]
192 * The options values are unescaped using config_StringUnescape.
194 VLC_API char *config_ChainCreate( char **ppsz_name, config_chain_t **pp_cfg, const char *psz_string ) VLC_USED VLC_MALLOC;
197 * This function will release a linked list of config_chain_t
198 * (Including the head)
200 VLC_API void config_ChainDestroy( config_chain_t * );
203 * This function will duplicate a linked list of config_chain_t
205 VLC_API config_chain_t * config_ChainDuplicate( const config_chain_t * ) VLC_USED VLC_MALLOC;
208 * This function will unescape a string in place and will return a pointer on
210 * No memory is allocated by it (unlike config_StringEscape).
211 * If NULL is given as parameter nothing will be done (NULL will be returned).
213 * The following sequences will be unescaped (only one time):
216 VLC_API char * config_StringUnescape( char *psz_string );
219 * This function will escape a string that can be unescaped by
220 * config_StringUnescape.
221 * The returned value is allocated by it. You have to free it once you
222 * do not need it anymore (unlike config_StringUnescape).
223 * If NULL is given as parameter nothing will be done (NULL will be returned).
225 * The escaped characters are ' " and \
227 VLC_API char * config_StringEscape( const char *psz_string ) VLC_USED VLC_MALLOC;
233 #endif /* _VLC_CONFIGURATION_H */