1 /*****************************************************************************
2 * 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, 2000 VideoLAN
7 * $Id: configuration.h,v 1.4 2002/03/21 07:11:57 gbazin Exp $
9 * Authors: Gildas Bazin <gbazin@netcourrier.com>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 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 General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
24 *****************************************************************************/
26 /*****************************************************************************
27 * Macros used to build the configuration structure.
28 *****************************************************************************/
30 /* Configuration hint types */
31 #define MODULE_CONFIG_HINT_END 0x0001 /* End of config */
32 #define MODULE_CONFIG_HINT_CATEGORY 0x0002 /* Start of new category */
33 #define MODULE_CONFIG_HINT_SUBCATEGORY 0x0003 /* Start of sub-category */
34 #define MODULE_CONFIG_HINT_SUBCATEGORY_END 0x0004 /* End of sub-category */
36 #define MODULE_CONFIG_HINT 0x000F
38 /* Configuration item types */
39 #define MODULE_CONFIG_ITEM_STRING 0x0010 /* String option */
40 #define MODULE_CONFIG_ITEM_FILE 0x0020 /* File option */
41 #define MODULE_CONFIG_ITEM_PLUGIN 0x0030 /* Plugin option */
42 #define MODULE_CONFIG_ITEM_INTEGER 0x0040 /* Integer option */
43 #define MODULE_CONFIG_ITEM_BOOL 0x0050 /* Bool option */
44 #define MODULE_CONFIG_ITEM_ALIAS 0x0060 /* Alias option */
46 #define MODULE_CONFIG_ITEM 0x00F0
48 typedef struct module_config_s
50 int i_type; /* Configuration type */
51 char *psz_name; /* Option name */
52 char *psz_text; /* Short comment on the configuration option */
53 char *psz_longtext; /* Long comment on the configuration option */
54 char *psz_value; /* Option value */
55 int i_value; /* Option value */
56 void *p_callback; /* Function to call when commiting a change */
57 vlc_mutex_t *p_lock; /* lock to use when modifying the config */
58 boolean_t b_dirty; /* Dirty flag to indicate a config change */
62 /*****************************************************************************
63 * Prototypes - these methods are used to get, set or manipulate configuration
65 *****************************************************************************/
67 int config_GetIntVariable( const char *psz_name );
68 char * config_GetPszVariable( const char *psz_name );
69 void config_PutIntVariable( const char *psz_name, int i_value );
70 void config_PutPszVariable( const char *psz_name, char *psz_value );
72 int config_LoadConfigFile( const char *psz_module_name );
73 int config_SaveConfigFile( const char *psz_module_name );
74 module_config_t *config_FindConfig( const char *psz_name );
75 module_config_t *config_Duplicate ( module_t *p_module );
76 char *config_GetHomeDir( void );
77 int config_LoadCmdLine( int *pi_argc, char *ppsz_argv[],
78 boolean_t b_ignore_errors );
81 # define config_GetIntVariable p_symbols->config_GetIntVariable
82 # define config_PutIntVariable p_symbols->config_PutIntVariable
83 # define config_GetPszVariable p_symbols->config_GetPszVariable
84 # define config_PutPszVariable p_symbols->config_PutPszVariable
85 # define config_Duplicate p_symbols->config_Duplicate
86 # define config_FindConfig p_symbols->config_FindConfig
87 # define config_LoadConfigFile p_symbols->config_LoadConfigFile
88 # define config_SaveConfigFile p_symbols->config_SaveConfigFile
91 /*****************************************************************************
92 * Macros used to build the configuration structure.
94 * Note that internally we support only 2 types of config data: int and string.
95 * The other types declared here just map to one of these 2 basic types but
96 * have the advantage of also providing very good hints to a configuration
97 * interface so as to make it more user friendly.
98 * The configuration structure also includes category hints. These hints can
99 * provide a configuration inteface with some very useful data and also allow
100 * for a more user friendly interface.
101 *****************************************************************************/
103 #define MODULE_CONFIG_START \
104 static module_config_t p_config[] = {
106 #define MODULE_CONFIG_STOP \
107 { MODULE_CONFIG_HINT_END, NULL, NULL, NULL, NULL, 0, NULL, 0 } };
109 #define ADD_CATEGORY_HINT( text, longtext ) \
110 { MODULE_CONFIG_HINT_CATEGORY, NULL, text, longtext, NULL, 0, NULL, \
112 #define ADD_SUBCATEGORY_HINT( text, longtext ) \
113 { MODULE_CONFIG_HINT_SUBCATEGORY, NULL, text, longtext, NULL, 0, NULL, \
115 #define END_SUBCATEGORY_HINT \
116 { MODULE_CONFIG_HINT_SUBCATEGORY_END, NULL, NULL, NULL, NULL, 0, NULL, \
118 #define ADD_STRING( name, value, p_callback, text, longtext ) \
119 { MODULE_CONFIG_ITEM_STRING, name, text, longtext, value, 0, \
120 p_callback, NULL, 0 },
121 #define ADD_FILE( name, psz_value, p_callback, text, longtext ) \
122 { MODULE_CONFIG_ITEM_FILE, name, text, longtext, psz_value, 0, \
123 p_callback, NULL, 0 },
124 #define ADD_PLUGIN( name, i_capability, psz_value, p_callback, text, longtext)\
125 { MODULE_CONFIG_ITEM_PLUGIN, name, text, longtext, psz_value, \
126 i_capability, p_callback, NULL, 0 },
127 #define ADD_INTEGER( name, i_value, p_callback, text, longtext ) \
128 { MODULE_CONFIG_ITEM_INTEGER, name, text, longtext, NULL, i_value, \
129 p_callback, NULL, 0 },
130 #define ADD_BOOL( name, p_callback, text, longtext ) \
131 { MODULE_CONFIG_ITEM_BOOL, name, text, longtext, NULL, 0, p_callback, \