* This file describes the programming interface for the configuration module.
* It includes functions allowing to declare, get or set configuration options.
*****************************************************************************
- * Copyright (C) 1999, 2000 VideoLAN
- * $Id: configuration.h,v 1.3 2002/03/16 01:40:58 gbazin Exp $
+ * Copyright (C) 1999-2006 the VideoLAN team
+ * $Id$
*
- * Authors: Gildas Bazin <gbazin@netcourrier.com>
+ * Authors: Gildas Bazin <gbazin@videolan.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
*****************************************************************************/
/* Configuration hint types */
-#define MODULE_CONFIG_HINT_END 0x0001 /* End of config */
-#define MODULE_CONFIG_HINT_CATEGORY 0x0002 /* Start of new category */
-#define MODULE_CONFIG_HINT_SUBCATEGORY 0x0003 /* Start of sub-category */
-#define MODULE_CONFIG_HINT_SUBCATEGORY_END 0x0004 /* End of sub-category */
-#define MODULE_CONFIG_HINT 0x000F
+
+#define CONFIG_HINT_END 0x0001 /* End of config */
+#define CONFIG_HINT_CATEGORY 0x0002 /* Start of new category */
+#define CONFIG_HINT_SUBCATEGORY 0x0003 /* Start of sub-category */
+#define CONFIG_HINT_SUBCATEGORY_END 0x0004 /* End of sub-category */
+#define CONFIG_HINT_USAGE 0x0005 /* Usage information */
+
+#define CONFIG_CATEGORY 0x0006 /* Set category */
+#define CONFIG_SUBCATEGORY 0x0007 /* Set subcategory */
+#define CONFIG_SECTION 0x0008 /* Start of new section */
+
+#define CONFIG_HINT 0x000F
/* Configuration item types */
-#define MODULE_CONFIG_ITEM_STRING 0x0010 /* String option */
-#define MODULE_CONFIG_ITEM_FILE 0x0020 /* File option */
-#define MODULE_CONFIG_ITEM_PLUGIN 0x0030 /* Plugin option */
-#define MODULE_CONFIG_ITEM_INTEGER 0x0040 /* Integer option */
-#define MODULE_CONFIG_ITEM_BOOL 0x0050 /* Bool option */
-#define MODULE_CONFIG_ITEM_ALIAS 0x0060 /* Alias option */
+#define CONFIG_ITEM_STRING 0x0010 /* String option */
+#define CONFIG_ITEM_FILE 0x0020 /* File option */
+#define CONFIG_ITEM_MODULE 0x0030 /* Module option */
+#define CONFIG_ITEM_INTEGER 0x0040 /* Integer option */
+#define CONFIG_ITEM_BOOL 0x0050 /* Bool option */
+#define CONFIG_ITEM_FLOAT 0x0060 /* Float option */
+#define CONFIG_ITEM_DIRECTORY 0x0070 /* Directory option */
+#define CONFIG_ITEM_KEY 0x0080 /* Hot key option */
+#define CONFIG_ITEM_MODULE_CAT 0x0090 /* Module option */
+#define CONFIG_ITEM_MODULE_LIST 0x00A0 /* Module option */
+#define CONFIG_ITEM_MODULE_LIST_CAT 0x00B0 /* Module option */
+
+#define CONFIG_ITEM 0x00F0
+
+/*******************************************************************
+ * All predefined categories and subcategories
+ *******************************************************************/
+#define CAT_INTERFACE 1
+ #define SUBCAT_INTERFACE_GENERAL 101
+ #define SUBCAT_INTERFACE_MAIN 102
+ #define SUBCAT_INTERFACE_CONTROL 103
+ #define SUBCAT_INTERFACE_HOTKEYS 104
+
+#define CAT_AUDIO 2
+ #define SUBCAT_AUDIO_GENERAL 201
+ #define SUBCAT_AUDIO_AOUT 202
+ #define SUBCAT_AUDIO_AFILTER 203
+ #define SUBCAT_AUDIO_VISUAL 204
+ #define SUBCAT_AUDIO_MISC 205
+
+#define CAT_VIDEO 3
+ #define SUBCAT_VIDEO_GENERAL 301
+ #define SUBCAT_VIDEO_VOUT 302
+ #define SUBCAT_VIDEO_VFILTER 303
+ #define SUBCAT_VIDEO_TEXT 304
+ #define SUBCAT_VIDEO_SUBPIC 305
+ #define SUBCAT_VIDEO_VFILTER2 306
+
+#define CAT_INPUT 4
+ #define SUBCAT_INPUT_GENERAL 401
+ #define SUBCAT_INPUT_ACCESS 402
+ #define SUBCAT_INPUT_ACCESS_FILTER 403
+ #define SUBCAT_INPUT_DEMUX 404
+ #define SUBCAT_INPUT_VCODEC 405
+ #define SUBCAT_INPUT_ACODEC 406
+ #define SUBCAT_INPUT_SCODEC 407
+
+#define CAT_SOUT 5
+ #define SUBCAT_SOUT_GENERAL 501
+ #define SUBCAT_SOUT_STREAM 502
+ #define SUBCAT_SOUT_MUX 503
+ #define SUBCAT_SOUT_ACO 504
+ #define SUBCAT_SOUT_PACKETIZER 505
+ #define SUBCAT_SOUT_SAP 506
+ #define SUBCAT_SOUT_VOD 507
-#define MODULE_CONFIG_ITEM 0x00F0
+#define CAT_ADVANCED 6
+ #define SUBCAT_ADVANCED_CPU 601
+ #define SUBCAT_ADVANCED_MISC 602
+ #define SUBCAT_ADVANCED_NETWORK 603
+ #define SUBCAT_ADVANCED_XML 604
-typedef struct module_config_s
+#define CAT_PLAYLIST 7
+ #define SUBCAT_PLAYLIST_GENERAL 701
+ #define SUBCAT_PLAYLIST_SD 702
+ #define SUBCAT_PLAYLIST_EXPORT 703
+
+struct config_category_t
+{
+ int i_id;
+ const char *psz_name;
+ const char *psz_help;
+};
+
+struct module_config_t
{
- int i_type; /* Configuration type */
- char *psz_name; /* Option name */
- char *psz_text; /* Short comment on the configuration option */
- char *psz_longtext; /* Long comment on the configuration option */
- char *psz_value; /* Option value */
- int i_value; /* Option value */
- void *p_callback; /* Function to call when commiting a change */
- vlc_mutex_t *p_lock; /* lock to use when modifying the config */
- boolean_t b_dirty; /* Dirty flag to indicate a config change */
-
-} module_config_t;
+ int i_type; /* Configuration type */
+ const char *psz_type; /* Configuration subtype */
+ const char *psz_name; /* Option name */
+ char i_short; /* Optional short option name */
+ const char *psz_text; /* Short comment on the configuration option */
+ const char *psz_longtext; /* Long comment on the configuration option */
+ const char *psz_value; /* Option value */
+ int i_value; /* Option value */
+ float f_value; /* Option value */
+ int i_min; /* Option minimum value */
+ int i_max; /* Option maximum value */
+ float f_min; /* Option minimum value */
+ float f_max; /* Option maximum value */
+
+ /* Function to call when commiting a change */
+ vlc_callback_t pf_callback;
+ void *p_callback_data;
+
+ /* Values list */
+ const char **ppsz_list; /* List of possible values for the option */
+ int *pi_list; /* Idem for integers */
+ const char **ppsz_list_text; /* Friendly names for list values */
+ int i_list; /* Options list size */
+
+ /* Actions list */
+ vlc_callback_t *ppf_action; /* List of possible actions for a config */
+ const char **ppsz_action_text; /* Friendly names for actions */
+ int i_action; /* actions list size */
+
+ /* Deprecated */
+ const char *psz_current; /* Good option name */
+ vlc_bool_t b_strict; /* Transitionnal or strict */
+ /* Misc */
+ vlc_mutex_t *p_lock; /* Lock to use when modifying the config */
+ vlc_bool_t b_dirty; /* Dirty flag to indicate a config change */
+ vlc_bool_t b_advanced; /* Flag to indicate an advanced option */
+ vlc_bool_t b_internal; /* Flag to indicate option is not to be shown */
+ vlc_bool_t b_restart; /* Flag to indicate the option need a restart */
+ /* to take effect */
+
+ /* Original option values */
+ const char *psz_value_orig;
+ int i_value_orig;
+ float f_value_orig;
+
+ /* Option values loaded from config file */
+ const char *psz_value_saved;
+ int i_value_saved;
+ float f_value_saved;
+ vlc_bool_t b_autosave; /* Config will be auto-saved at exit time */
+};
/*****************************************************************************
* Prototypes - these methods are used to get, set or manipulate configuration
* data.
*****************************************************************************/
-#ifndef PLUGIN
-int config_GetIntVariable( const char *psz_name );
-char * config_GetPszVariable( const char *psz_name );
-void config_PutIntVariable( const char *psz_name, int i_value );
-void config_PutPszVariable( const char *psz_name, char *psz_value );
-
-int config_LoadConfigFile( const char *psz_module_name );
-int config_SaveConfigFile( const char *psz_module_name );
-module_config_t *config_FindConfig( const char *psz_name );
-module_config_t *config_Duplicate ( module_t *p_module );
-
-#else
-# define config_GetIntVariable p_symbols->config_GetIntVariable
-# define config_PutIntVariable p_symbols->config_PutIntVariable
-# define config_GetPszVariable p_symbols->config_GetPszVariable
-# define config_PutPszVariable p_symbols->config_PutPszVariable
-# define config_Duplicate p_symbols->config_Duplicate
-# define config_FindConfig p_symbols->config_FindConfig
-# define config_LoadConfigFile p_symbols->config_LoadConfigFile
-# define config_SaveConfigFile p_symbols->config_SaveConfigFile
-#endif
+VLC_EXPORT( int, __config_GetType, (vlc_object_t *, const char *) );
+VLC_EXPORT( int, __config_GetInt, (vlc_object_t *, const char *) );
+VLC_EXPORT( void, __config_PutInt, (vlc_object_t *, const char *, int) );
+VLC_EXPORT( float, __config_GetFloat, (vlc_object_t *, const char *) );
+VLC_EXPORT( void, __config_PutFloat, (vlc_object_t *, const char *, float) );
+VLC_EXPORT( char *, __config_GetPsz, (vlc_object_t *, const char *) );
+VLC_EXPORT( void, __config_PutPsz, (vlc_object_t *, const char *, const char *) );
+
+VLC_EXPORT( int, __config_LoadCmdLine, ( vlc_object_t *, int *, char *[], vlc_bool_t ) );
+VLC_EXPORT( char *, config_GetHomeDir, ( void ) );
+VLC_EXPORT( char *, config_GetUserDir, ( void ) );
+VLC_EXPORT( const char *, config_GetDataDir, ( const vlc_object_t * ) );
+VLC_EXPORT( int, __config_LoadConfigFile, ( vlc_object_t *, const char * ) );
+VLC_EXPORT( int, __config_SaveConfigFile, ( vlc_object_t *, const char * ) );
+VLC_EXPORT( void, __config_ResetAll, ( vlc_object_t * ) );
+
+VLC_EXPORT( module_config_t *, config_FindConfig,( vlc_object_t *, const char * ) );
+VLC_EXPORT( module_t *, config_FindModule,( vlc_object_t *, const char * ) );
+
+VLC_EXPORT( void, config_Duplicate, ( module_t *, module_config_t * ) );
+ void config_Free ( module_t * );
+
+VLC_EXPORT( void, config_SetCallbacks, ( module_config_t *, module_config_t * ) );
+VLC_EXPORT( void, config_UnsetCallbacks, ( module_config_t * ) );
+
+#define config_GetType(a,b) __config_GetType(VLC_OBJECT(a),b)
+#define config_GetInt(a,b) __config_GetInt(VLC_OBJECT(a),b)
+#define config_PutInt(a,b,c) __config_PutInt(VLC_OBJECT(a),b,c)
+#define config_GetFloat(a,b) __config_GetFloat(VLC_OBJECT(a),b)
+#define config_PutFloat(a,b,c) __config_PutFloat(VLC_OBJECT(a),b,c)
+#define config_GetPsz(a,b) __config_GetPsz(VLC_OBJECT(a),b)
+#define config_PutPsz(a,b,c) __config_PutPsz(VLC_OBJECT(a),b,c)
+
+#define config_LoadCmdLine(a,b,c,d) __config_LoadCmdLine(VLC_OBJECT(a),b,c,d)
+#define config_LoadConfigFile(a,b) __config_LoadConfigFile(VLC_OBJECT(a),b)
+#define config_SaveConfigFile(a,b) __config_SaveConfigFile(VLC_OBJECT(a),b)
+#define config_ResetAll(a) __config_ResetAll(VLC_OBJECT(a))
+
+/* internal only */
+int config_CreateDir( vlc_object_t *, const char * );
+int config_AutoSaveConfigFile( vlc_object_t * );
/*****************************************************************************
* Macros used to build the configuration structure.
*
- * Note that internally we support only 2 types of config data: int and string.
- * The other types declared here just map to one of these 2 basic types but
+ * Note that internally we support only 3 types of config data: int, float
+ * and string.
+ * The other types declared here just map to one of these 3 basic types but
* have the advantage of also providing very good hints to a configuration
* interface so as to make it more user friendly.
* The configuration structure also includes category hints. These hints can
- * provide a configuration inteface with some very useful data and also allow
- * for a more user friendly interface.
+ * provide a configuration interface with some very useful data and again
+ * allow for a more user friendly interface.
*****************************************************************************/
-#define MODULE_CONFIG_START \
- static module_config_t p_config[] = {
-
-#define MODULE_CONFIG_STOP \
- { MODULE_CONFIG_HINT_END, NULL, NULL, NULL, NULL, 0, NULL, 0 } };
-
-#define ADD_CATEGORY_HINT( text, longtext ) \
- { MODULE_CONFIG_HINT_CATEGORY, NULL, text, longtext, NULL, 0, NULL, \
- NULL, 0 },
-#define ADD_SUBCATEGORY_HINT( text, longtext ) \
- { MODULE_CONFIG_HINT_SUBCATEGORY, NULL, text, longtext, NULL, 0, NULL, \
- NULL, 0 },
-#define END_SUBCATEGORY_HINT \
- { MODULE_CONFIG_HINT_SUBCATEGORY_END, NULL, NULL, NULL, NULL, 0, NULL, \
- NULL, 0 },
-#define ADD_STRING( name, value, p_callback, text, longtext ) \
- { MODULE_CONFIG_ITEM_STRING, name, text, longtext, value, 0, \
- p_callback, NULL, 0 },
-#define ADD_FILE( name, psz_value, p_callback, text, longtext ) \
- { MODULE_CONFIG_ITEM_FILE, name, text, longtext, psz_value, 0, \
- p_callback, NULL, 0 },
-#define ADD_PLUGIN( name, i_capability, psz_value, p_callback, text, longtext)\
- { MODULE_CONFIG_ITEM_PLUGIN, name, text, longtext, psz_value, \
- i_capability, p_callback, NULL, 0 },
-#define ADD_INTEGER( name, i_value, p_callback, text, longtext ) \
- { MODULE_CONFIG_ITEM_INTEGER, name, text, longtext, NULL, i_value, \
- p_callback, NULL, 0 },
-#define ADD_BOOL( name, p_callback, text, longtext ) \
- { MODULE_CONFIG_ITEM_BOOL, name, text, longtext, NULL, 0, p_callback, \
- NULL, 0 },
+#define add_config_inner( ) \
+ i_config++; \
+ if( (i_config % 10) == 0 ) \
+ p_config = (module_config_t *) \
+ realloc(p_config, (i_config+11) * sizeof(module_config_t)); \
+ memset( p_config + i_config, 0, sizeof( *p_config ) )
+
+#define add_type_inner( type ) \
+ add_config_inner( ); \
+ p_config[i_config].i_type = type
+
+#define add_typedesc_inner( type, text, longtext ) \
+ add_type_inner( type ); \
+ p_config[i_config].psz_text = text; \
+ p_config[i_config].psz_longtext = longtext
+
+#define add_typeadv_inner( type, text, longtext, advc ) \
+ add_typedesc_inner( type, text, longtext ); \
+ p_config[i_config].b_advanced = advc
+
+#define add_typename_inner( type, name, text, longtext, advc, cb ) \
+ add_typeadv_inner( type, text, longtext, advc ); \
+ p_config[i_config].psz_name = name; \
+ p_config[i_config].pf_callback = cb
+
+#define add_string_inner( type, name, text, longtext, advc, cb, value ) \
+ add_typename_inner( type, name, text, longtext, advc, cb ); \
+ p_config[i_config].psz_value = value
+
+#define add_int_inner( type, name, text, longtext, advc, cb, value ) \
+ add_typename_inner( type, name, text, longtext, advc, cb ); \
+ p_config[i_config].i_value = value
+
+
+#define set_category( i_id ) \
+ add_type_inner( CONFIG_CATEGORY ); \
+ p_config[i_config].i_value = i_id
+
+#define set_subcategory( i_id ) \
+ add_type_inner( CONFIG_SUBCATEGORY ); \
+ p_config[i_config].i_value = i_id
+
+#define set_section( text, longtext ) \
+ add_typedesc_inner( CONFIG_SECTION, text, longtext )
+
+#define add_category_hint( text, longtext, advc ) \
+ add_typeadv_inner( CONFIG_HINT_CATEGORY, text, longtext, advc )
+
+#define add_subcategory_hint( text, longtext ) \
+ add_typedesc_inner( CONFIG_HINT_SUBCATEGORY, text, longtext )
+
+#define end_subcategory_hint \
+ add_type_inner( CONFIG_HINT_SUBCATEGORY_END )
+
+#define add_usage_hint( text ) \
+ add_typedesc_inner( CONFIG_HINT_USAGE, text, NULL )
+
+#define add_string( name, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_STRING, name, text, longtext, advc, p_callback, value )
+
+#define add_file( name, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_FILE, name, text, longtext, advc, p_callback, value )
+
+#define add_directory( name, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_DIRECTORY, name, text, longtext, advc, p_callback, value )
+
+#define add_module( name, psz_caps, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_MODULE, name, text, longtext, advc, p_callback, value ); \
+ p_config[i_config].psz_type = psz_caps
+
+#define add_module_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_MODULE_CAT, name, text, longtext, advc, p_callback, value ); \
+ p_config[i_config].i_min = i_subcategory /* gruik */
+
+#define add_module_list( name, psz_caps, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_MODULE_LIST, name, text, longtext, advc, p_callback, value ); \
+ p_config[i_config].psz_type = psz_caps
+
+#define add_module_list_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_MODULE_LIST_CAT, name, text, longtext, advc, p_callback, value ); \
+ p_config[i_config].i_min = i_subcategory /* gruik */
+
+#define add_integer( name, value, p_callback, text, longtext, advc ) \
+ add_int_inner( CONFIG_ITEM_INTEGER, name, text, longtext, advc, p_callback, value )
+
+#define add_key( name, value, p_callback, text, longtext, advc ) \
+ add_int_inner( CONFIG_ITEM_KEY, name, text, longtext, advc, p_callback, value )
+
+#define add_integer_with_range( name, value, i_min, i_max, p_callback, text, longtext, advc ) \
+ add_integer( name, value, p_callback, text, longtext, advc ); \
+ change_integer_range( i_min, i_max )
+
+#define add_float( name, value, p_callback, text, longtext, advc ) \
+ add_typename_inner( CONFIG_ITEM_FLOAT, name, text, longtext, advc, p_callback ); \
+ p_config[i_config].f_value = value
+
+#define add_float_with_range( name, value, f_min, f_max, p_callback, text, longtext, advc ) \
+ add_float( name, value, p_callback, text, longtext, advc ); \
+ change_float_range( f_min, f_max )
+
+#define add_bool( name, value, p_callback, text, longtext, advc ) \
+ add_typename_inner( CONFIG_ITEM_BOOL, name, text, longtext, advc, p_callback ); \
+ p_config[i_config].i_value = value
+
+/* For option renamed */
+#define add_deprecated( name, strict ) \
+ add_config_inner( ); \
+ p_config[ i_config ].i_type = p_config[ i_config -1 ].i_type; \
+ p_config[ i_config ].psz_name = name; \
+ p_config[i_config].b_strict = strict; \
+ p_config[ i_config ].psz_current = p_config[ i_config-1].psz_current \
+ ? p_config[ i_config-1 ].psz_current \
+ : p_config[ i_config-1 ].psz_name;
+
+/* For option suppressed*/
+#define add_suppressed_inner( name, type ) \
+ add_type_inner( type ); \
+ p_config[ i_config ].psz_name = name; \
+ p_config[ i_config ].psz_current = "SUPPRESSED";
+
+#define add_suppressed_bool( name ) \
+ add_suppressed_inner( name, CONFIG_ITEM_BOOL )
+
+#define add_suppressed_integer( name ) \
+ add_suppressed_inner( name, CONFIG_ITEM_INTEGER )
+
+#define add_suppressed_float( name ) \
+ add_suppressed_inner( name, CONFIG_ITEM_FLOAT )
+
+#define add_suppressed_string( name ) \
+ add_suppressed_inner( name, CONFIG_ITEM_STRING )
+
+/* Modifier macros for the config options (used for fine tuning) */
+#define change_short( ch ) \
+ p_config[i_config].i_short = ch;
+
+#define change_string_list( list, list_text, list_update_func ) \
+ p_config[i_config].i_list = sizeof(list)/sizeof(char *); \
+ p_config[i_config].ppsz_list = list; \
+ p_config[i_config].ppsz_list_text = list_text;
+
+#define change_integer_list( list, list_text, list_update_func ) \
+ p_config[i_config].i_list = sizeof(list)/sizeof(int); \
+ p_config[i_config].pi_list = (int *)list; \
+ p_config[i_config].ppsz_list_text = list_text;
+
+#define change_integer_range( min, max ) \
+ p_config[i_config].i_min = min; \
+ p_config[i_config].i_max = max;
+
+#define change_float_range( min, max ) \
+ p_config[i_config].f_min = min; \
+ p_config[i_config].f_max = max;
+
+#define change_action_add( pf_action, action_text ) \
+ if( !p_config[i_config].i_action ) \
+ { p_config[i_config].ppsz_action_text = 0; \
+ p_config[i_config].ppf_action = 0; } \
+ p_config[i_config].ppf_action = (vlc_callback_t *) \
+ realloc( p_config[i_config].ppf_action, \
+ (p_config[i_config].i_action + 1) * sizeof(void *) ); \
+ p_config[i_config].ppsz_action_text = (const char **)\
+ realloc( p_config[i_config].ppsz_action_text, \
+ (p_config[i_config].i_action + 1) * sizeof(void *) ); \
+ p_config[i_config].ppf_action[p_config[i_config].i_action] = pf_action; \
+ p_config[i_config].ppsz_action_text[p_config[i_config].i_action] = \
+ action_text; \
+ p_config[i_config].i_action++;
+
+#define change_internal() \
+ p_config[i_config].b_internal = VLC_TRUE;
+
+#define change_need_restart() \
+ p_config[i_config].b_restart = VLC_TRUE;
+
+#define change_autosave() \
+ p_config[i_config].b_autosave = VLC_TRUE;
+
+
+/****************************************************************************
+ * config_chain_t:
+ ****************************************************************************/
+struct config_chain_t
+{
+ config_chain_t *p_next;
+
+ char *psz_name;
+ char *psz_value;
+};
+
+#define config_ChainParse( a, b, c, d ) __config_ChainParse( VLC_OBJECT(a), b, c, d )
+VLC_EXPORT( void, __config_ChainParse, ( vlc_object_t *, char *psz_prefix, const char **ppsz_options, config_chain_t * ) );
+VLC_EXPORT( char *, config_ChainCreate, ( char **, config_chain_t **, char * ) );
+VLC_EXPORT( void, config_ChainDestroy, ( config_chain_t * ) );
+
+static inline config_chain_t *config_chain_find( config_chain_t *p_cfg, char *psz_name )
+{
+ while( p_cfg && strcmp( p_cfg->psz_name, psz_name ) )
+ {
+ p_cfg = p_cfg->p_next;
+ }
+
+ return p_cfg;
+}
+
+static inline char *config_chain_find_value( config_chain_t *p_cfg, char *psz_name )
+{
+ while( p_cfg && strcmp( p_cfg->psz_name, psz_name ) )
+ {
+ p_cfg = p_cfg->p_next;
+ }
+
+ if( p_cfg && p_cfg->psz_value )
+ {
+ return( p_cfg->psz_value );
+ }
+
+ return NULL;
+}