mirror of https://code.videolan.org/videolan/vlc
238 lines
9.0 KiB
C
238 lines
9.0 KiB
C
/*****************************************************************************
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* vlc_configuration.h : configuration management module
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* This file describes the programming interface for the configuration module.
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* It includes functions allowing to declare, get or set configuration options.
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*****************************************************************************
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* Copyright (C) 1999-2006 VLC authors and VideoLAN
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* $Id$
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*
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* Authors: Gildas Bazin <gbazin@videolan.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef VLC_CONFIGURATION_H
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#define VLC_CONFIGURATION_H 1
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/**
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* \file
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* This file describes the programming interface for the configuration module.
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* It includes functions allowing to declare, get or set configuration options.
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*/
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#include <sys/types.h> /* for ssize_t */
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# ifdef __cplusplus
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extern "C" {
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# endif
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struct config_category_t
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{
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int i_id;
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const char *psz_name;
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const char *psz_help;
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};
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typedef union
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{
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char *psz;
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int64_t i;
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float f;
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} module_value_t;
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typedef int (*vlc_string_list_cb)(vlc_object_t *, const char *,
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char ***, char ***);
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typedef int (*vlc_integer_list_cb)(vlc_object_t *, const char *,
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int64_t **, char ***);
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struct module_config_t
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{
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uint8_t i_type; /* Configuration type */
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char i_short; /* Optional short option name */
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unsigned b_advanced:1; /* Advanced option */
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unsigned b_internal:1; /* Hidden from prefs and help */
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unsigned b_unsaveable:1; /* Not stored in configuration */
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unsigned b_safe:1; /* Safe in web plugins and playlists */
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unsigned b_removed:1; /* Deprecated */
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const char *psz_type; /* Configuration subtype */
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const char *psz_name; /* Option name */
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const char *psz_text; /* Short comment on the configuration option */
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const char *psz_longtext; /* Long comment on the configuration option */
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module_value_t value; /* Option value */
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module_value_t orig;
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module_value_t min;
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module_value_t max;
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/* Values list */
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uint16_t list_count; /* Options list size */
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union
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{
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const char **psz; /* List of possible values for the option */
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const int *i;
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vlc_string_list_cb psz_cb;
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vlc_integer_list_cb i_cb;
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} list;
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const char **list_text; /* Friendly names for list values */
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const char *list_cb_name;
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void *owner;
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};
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/*****************************************************************************
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* Prototypes - these methods are used to get, set or manipulate configuration
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* data.
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*****************************************************************************/
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VLC_API int config_GetType(const char *) VLC_USED;
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VLC_API int64_t config_GetInt(vlc_object_t *, const char *) VLC_USED;
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VLC_API void config_PutInt(vlc_object_t *, const char *, int64_t);
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VLC_API float config_GetFloat(vlc_object_t *, const char *) VLC_USED;
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VLC_API void config_PutFloat(vlc_object_t *, const char *, float);
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VLC_API char * config_GetPsz(vlc_object_t *, const char *) VLC_USED VLC_MALLOC;
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VLC_API void config_PutPsz(vlc_object_t *, const char *, const char *);
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VLC_API ssize_t config_GetIntChoices(vlc_object_t *, const char *,
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int64_t **, char ***) VLC_USED;
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VLC_API ssize_t config_GetPszChoices(vlc_object_t *, const char *,
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char ***, char ***) VLC_USED;
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VLC_API int config_SaveConfigFile( vlc_object_t * );
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#define config_SaveConfigFile(a) config_SaveConfigFile(VLC_OBJECT(a))
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VLC_API void config_ResetAll( vlc_object_t * );
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#define config_ResetAll(a) config_ResetAll(VLC_OBJECT(a))
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VLC_API module_config_t * config_FindConfig(const char *) VLC_USED;
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VLC_API char * config_GetDataDir(void) VLC_USED VLC_MALLOC;
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VLC_API char *config_GetLibDir(void) VLC_USED;
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typedef enum vlc_userdir
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{
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VLC_HOME_DIR, /* User's home */
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VLC_CONFIG_DIR, /* VLC-specific configuration directory */
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VLC_DATA_DIR, /* VLC-specific data directory */
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VLC_CACHE_DIR, /* VLC-specific user cached data directory */
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/* Generic directories (same as XDG) */
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VLC_DESKTOP_DIR=0x80,
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VLC_DOWNLOAD_DIR,
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VLC_TEMPLATES_DIR,
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VLC_PUBLICSHARE_DIR,
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VLC_DOCUMENTS_DIR,
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VLC_MUSIC_DIR,
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VLC_PICTURES_DIR,
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VLC_VIDEOS_DIR,
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} vlc_userdir_t;
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VLC_API char * config_GetUserDir( vlc_userdir_t ) VLC_USED VLC_MALLOC;
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VLC_API void config_AddIntf( vlc_object_t *, const char * );
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VLC_API void config_RemoveIntf( vlc_object_t *, const char * );
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VLC_API bool config_ExistIntf( vlc_object_t *, const char * ) VLC_USED;
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#define config_GetInt(a,b) config_GetInt(VLC_OBJECT(a),b)
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#define config_PutInt(a,b,c) config_PutInt(VLC_OBJECT(a),b,c)
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#define config_GetFloat(a,b) config_GetFloat(VLC_OBJECT(a),b)
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#define config_PutFloat(a,b,c) config_PutFloat(VLC_OBJECT(a),b,c)
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#define config_GetPsz(a,b) config_GetPsz(VLC_OBJECT(a),b)
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#define config_PutPsz(a,b,c) config_PutPsz(VLC_OBJECT(a),b,c)
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#define config_AddIntf(a,b) config_AddIntf(VLC_OBJECT(a),b)
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#define config_RemoveIntf(a,b) config_RemoveIntf(VLC_OBJECT(a),b)
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#define config_ExistIntf(a,b) config_ExistIntf(VLC_OBJECT(a),b)
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/****************************************************************************
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* config_chain_t:
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****************************************************************************/
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struct config_chain_t
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{
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config_chain_t *p_next; /**< Pointer on the next config_chain_t element */
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char *psz_name; /**< Option name */
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char *psz_value; /**< Option value */
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};
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/**
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* This function will
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* - create all options in the array ppsz_options (var_Create).
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* - parse the given linked list of config_chain_t and set the value (var_Set).
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*
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* The option names will be created by adding the psz_prefix prefix.
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*/
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VLC_API void config_ChainParse( vlc_object_t *, const char *psz_prefix, const char *const *ppsz_options, config_chain_t * );
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#define config_ChainParse( a, b, c, d ) config_ChainParse( VLC_OBJECT(a), b, c, d )
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/**
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* This function will parse a configuration string (psz_opts) and
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* - set all options for this module in a chained list (*pp_cfg)
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* - returns a pointer on the next module if any.
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*
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* The string format is
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* module{option=*,option=*}
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*
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* The options values are unescaped using config_StringUnescape.
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*/
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VLC_API const char *config_ChainParseOptions( config_chain_t **pp_cfg, const char *ppsz_opts );
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/**
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* This function will parse a configuration string (psz_string) and
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* - set the module name (*ppsz_name)
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* - set all options for this module in a chained list (*pp_cfg)
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* - returns a pointer on the next module if any.
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*
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* The string format is
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* module{option=*,option=*}[:modulenext{option=*,...}]
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*
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* The options values are unescaped using config_StringUnescape.
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*/
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VLC_API char *config_ChainCreate( char **ppsz_name, config_chain_t **pp_cfg, const char *psz_string ) VLC_USED VLC_MALLOC;
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/**
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* This function will release a linked list of config_chain_t
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* (Including the head)
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*/
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VLC_API void config_ChainDestroy( config_chain_t * );
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/**
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* This function will duplicate a linked list of config_chain_t
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*/
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VLC_API config_chain_t * config_ChainDuplicate( const config_chain_t * ) VLC_USED VLC_MALLOC;
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/**
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* This function will unescape a string in place and will return a pointer on
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* the given string.
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* No memory is allocated by it (unlike config_StringEscape).
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* If NULL is given as parameter nothing will be done (NULL will be returned).
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*
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* The following sequences will be unescaped (only one time):
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* \\ \' and \"
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*/
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VLC_API char * config_StringUnescape( char *psz_string );
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/**
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* This function will escape a string that can be unescaped by
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* config_StringUnescape.
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* The returned value is allocated by it. You have to free it once you
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* do not need it anymore (unlike config_StringUnescape).
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* If NULL is given as parameter nothing will be done (NULL will be returned).
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*
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* The escaped characters are ' " and \
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*/
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VLC_API char * config_StringEscape( const char *psz_string ) VLC_USED VLC_MALLOC;
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# ifdef __cplusplus
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}
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# endif
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#endif /* _VLC_CONFIGURATION_H */
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