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 1.14 2002/06/11 09:44:21 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 CONFIG_HINT_END 0x0001 /* End of config */
32 #define CONFIG_HINT_CATEGORY 0x0002 /* Start of new category */
33 #define CONFIG_HINT_SUBCATEGORY 0x0003 /* Start of sub-category */
34 #define CONFIG_HINT_SUBCATEGORY_END 0x0004 /* End of sub-category */
35 #define CONFIG_HINT_USAGE 0x0005 /* Usage information */
37 #define CONFIG_HINT 0x000F
39 /* Configuration item types */
40 #define CONFIG_ITEM_STRING 0x0010 /* String option */
41 #define CONFIG_ITEM_FILE 0x0020 /* File option */
42 #define CONFIG_ITEM_MODULE 0x0030 /* Module option */
43 #define CONFIG_ITEM_INTEGER 0x0040 /* Integer option */
44 #define CONFIG_ITEM_BOOL 0x0050 /* Bool option */
45 #define CONFIG_ITEM_FLOAT 0x0060 /* Float option */
47 #define CONFIG_ITEM 0x00F0
49 struct module_config_s
51 int i_type; /* Configuration type */
52 char *psz_name; /* Option name */
53 char i_short; /* Optional short option name */
54 char *psz_text; /* Short comment on the configuration option */
55 char *psz_longtext; /* Long comment on the configuration option */
56 char *psz_value; /* Option value */
57 int i_value; /* Option value */
58 float f_value; /* Option value */
60 /* Function to call when commiting a change */
61 void ( * pf_callback ) ( vlc_object_t * );
63 char **ppsz_list; /* List of possible values for the option */
65 vlc_mutex_t *p_lock; /* Lock to use when modifying the config */
66 vlc_bool_t b_dirty; /* Dirty flag to indicate a config change */
69 /*****************************************************************************
70 * Prototypes - these methods are used to get, set or manipulate configuration
72 *****************************************************************************/
73 VLC_EXPORT( int, __config_GetInt, (vlc_object_t *, const char *) );
74 VLC_EXPORT( void, __config_PutInt, (vlc_object_t *, const char *, int) );
75 VLC_EXPORT( float, __config_GetFloat, (vlc_object_t *, const char *) );
76 VLC_EXPORT( void, __config_PutFloat, (vlc_object_t *, const char *, float) );
77 VLC_EXPORT( char *, __config_GetPsz, (vlc_object_t *, const char *) );
78 VLC_EXPORT( void, __config_PutPsz, (vlc_object_t *, const char *, char *) );
80 VLC_EXPORT( int, __config_LoadCmdLine, ( vlc_object_t *, int *, char *[], vlc_bool_t ) );
81 VLC_EXPORT( char *, config_GetHomeDir, ( void ) );
82 VLC_EXPORT( int, __config_LoadConfigFile, ( vlc_object_t *, const char * ) );
83 VLC_EXPORT( int, __config_SaveConfigFile, ( vlc_object_t *, const char * ) );
84 VLC_EXPORT( module_config_t *, config_FindConfig,( vlc_object_t *, const char *psz_name ) );
86 VLC_EXPORT( void, config_Duplicate, ( module_t *, module_config_t * ) );
87 void config_Free ( module_t * );
89 VLC_EXPORT( void, config_SetCallbacks, ( module_config_t *, module_config_t * ) );
90 VLC_EXPORT( void, config_UnsetCallbacks, ( module_config_t * ) );
92 #define config_GetInt(a,b) __config_GetInt(CAST_TO_VLC_OBJECT(a),b)
93 #define config_PutInt(a,b,c) __config_PutInt(CAST_TO_VLC_OBJECT(a),b,c)
94 #define config_GetFloat(a,b) __config_GetFloat(CAST_TO_VLC_OBJECT(a),b)
95 #define config_PutFloat(a,b,c) __config_PutFloat(CAST_TO_VLC_OBJECT(a),b,c)
96 #define config_GetPsz(a,b) __config_GetPsz(CAST_TO_VLC_OBJECT(a),b)
97 #define config_PutPsz(a,b,c) __config_PutPsz(CAST_TO_VLC_OBJECT(a),b,c)
99 #define config_LoadCmdLine(a,b,c,d) __config_LoadCmdLine(CAST_TO_VLC_OBJECT(a),b,c,d)
100 #define config_LoadConfigFile(a,b) __config_LoadConfigFile(CAST_TO_VLC_OBJECT(a),b)
101 #define config_SaveConfigFile(a,b) __config_SaveConfigFile(CAST_TO_VLC_OBJECT(a),b)
103 /*****************************************************************************
104 * Macros used to build the configuration structure.
106 * Note that internally we support only 3 types of config data: int , float
108 * The other types declared here just map to one of these 3 basic types but
109 * have the advantage of also providing very good hints to a configuration
110 * interface so as to make it more user friendly.
111 * The configuration structure also includes category hints. These hints can
112 * provide a configuration interface with some very useful data and again
113 * allow for a more user friendly interface.
114 *****************************************************************************/
116 #define MODULE_CONFIG_START \
117 static module_config_t p_config[] = {
118 #define MODULE_CONFIG_STOP \
119 { CONFIG_HINT_END, NULL, '\0' } };
121 #define ADD_CATEGORY_HINT( text, longtext ) \
122 { CONFIG_HINT_CATEGORY, NULL, '\0', text, longtext },
123 #define ADD_SUBCATEGORY_HINT( text, longtext ) \
124 { CONFIG_HINT_SUBCATEGORY, NULL, '\0', text, longtext },
125 #define END_SUBCATEGORY_HINT \
126 { CONFIG_HINT_SUBCATEGORY_END, NULL, '\0' },
127 #define ADD_USAGE_HINT( text ) \
128 { CONFIG_HINT_USAGE, NULL, '\0', text },
130 #define ADD_STRING( name, psz_value, p_callback, text, longtext ) \
131 { CONFIG_ITEM_STRING, name, '\0', text, longtext, psz_value, 0, 0, \
133 #define ADD_STRING_FROM_LIST( name, psz_value, ppsz_list, p_callback, text, \
135 { CONFIG_ITEM_STRING, name, '\0', text, longtext, psz_value, 0, 0, \
136 p_callback, ppsz_list },
137 #define ADD_FILE( name, psz_value, p_callback, text, longtext ) \
138 { CONFIG_ITEM_FILE, name, '\0', text, longtext, psz_value, 0, 0, \
140 #define ADD_MODULE( name, i_caps, psz_value, p_callback, text, longtext ) \
141 { CONFIG_ITEM_MODULE, name, '\0', text, longtext, psz_value, i_caps, 0, \
143 #define ADD_INTEGER( name, i_value, p_callback, text, longtext ) \
144 { CONFIG_ITEM_INTEGER, name, '\0', text, longtext, NULL, i_value, 0, \
146 #define ADD_FLOAT( name, f_value, p_callback, text, longtext ) \
147 { CONFIG_ITEM_FLOAT, name, '\0', text, longtext, NULL, 0, f_value, \
149 #define ADD_BOOL( name, b_value, p_callback, text, longtext ) \
150 { CONFIG_ITEM_BOOL, name, '\0', text, longtext, NULL, b_value, 0, \
153 /* These should be seldom used. They were added just to provide easy shortcuts
154 * for the command line interface */
155 #define ADD_STRING_WITH_SHORT( name, ch, psz_value, p_callback, text, ltext ) \
156 { CONFIG_ITEM_STRING, name, ch, text, ltext, psz_value, 0, 0, \
158 #define ADD_FILE_WITH_SHORT( name, ch, psz_value, p_callback, text, ltext ) \
159 { CONFIG_ITEM_FILE, name, ch, text, ltext, psz_value, 0, 0, \
161 #define ADD_MODULE_WITH_SHORT( name, ch, i_capability, psz_value, p_callback, \
163 { CONFIG_ITEM_MODULE, name, ch, text, ltext, psz_value, i_capability, 0, \
165 #define ADD_INTEGER_WITH_SHORT( name, ch, i_value, p_callback, text, ltext ) \
166 { CONFIG_ITEM_INTEGER, name, ch, text, ltext, NULL, i_value, 0, \
168 #define ADD_FLOAT_WITH_SHORT( name, ch, f_value, p_callback, text, ltext ) \
169 { CONFIG_ITEM_FLOAT, name, ch, text, ltext, NULL, 0, f_value, \
171 #define ADD_BOOL_WITH_SHORT( name, ch, b_value, p_callback, text, ltext ) \
172 { CONFIG_ITEM_BOOL, name, ch, text, ltext, NULL, b_value, 0, \