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 1.1 2002/02/24 20:51:09 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 /* Mandatory last part of the structure */
31 #define MODULE_CONFIG_ITEM_END 0x000 /* End of config */
33 /* Configuration widgets */
34 #define MODULE_CONFIG_ITEM_CATEGORY 0x0001 /* Start of new category */
35 #define MODULE_CONFIG_ITEM_SUBCATEGORY 0x0002 /* Start of sub-category */
36 #define MODULE_CONFIG_ITEM_SUBCATEGORY_END 0x0003 /* End of sub-category */
37 #define MODULE_CONFIG_ITEM_STRING 0x0004 /* String option */
38 #define MODULE_CONFIG_ITEM_FILE 0x0005 /* File option */
39 #define MODULE_CONFIG_ITEM_PLUGIN 0x0006 /* Plugin option */
40 #define MODULE_CONFIG_ITEM_INTEGER 0x0007 /* Integer option */
41 #define MODULE_CONFIG_ITEM_BOOL 0x0008 /* Bool option */
42 #define MODULE_CONFIG_ITEM_ALIAS 0x0009 /* Alias option */
44 typedef struct module_config_s
46 int i_type; /* Configuration type */
47 char * psz_name; /* Option name */
48 char * psz_text; /* Short comment on the configuration option */
49 char * psz_longtext; /* Long comment on the configuration option */
50 char * psz_value; /* Option value */
51 int i_value; /* Option value */
52 void * p_callback; /* Function to call when commiting a change */
53 boolean_t b_dirty; /* Dirty flag to indicate a config change */
57 /*****************************************************************************
58 * Prototypes - these methods are used to get, set or manipulate configuration
60 *****************************************************************************/
62 int config_GetIntVariable( const char *psz_name );
63 char * config_GetPszVariable( const char *psz_name );
64 void config_PutIntVariable( const char *psz_name, int i_value );
65 void config_PutPszVariable( const char *psz_name, char *psz_value );
67 module_config_t *config_FindConfig( const char *psz_name );
68 module_config_t *config_Duplicate ( module_config_t *p_config_orig,
69 int i_config_options );
71 # define config_GetIntVariable p_symbols->config_GetIntVariable
72 # define config_PutIntVariable p_symbols->config_PutIntVariable
73 # define config_GetPszVariable p_symbols->config_GetPszVariable
74 # define config_PutPszVariable p_symbols->config_PutPszVariable
75 # define config_Duplicate p_symbols->config_Duplicate
76 # define config_FindConfig p_symbols->config_FindConfig
79 /*****************************************************************************
80 * Macros used to build the configuration structure.
82 * Note that internally we support only 2 types of config data: int and string.
83 * The other types declared here just map to one of these 2 basic types but
84 * have the advantage of also providing very good hints to a configuration
85 * interface so as to make it more user friendly.
86 * The configuration structure also includes category hints. These hints can
87 * provide a configuration inteface with some very useful data and also allow
88 * for a more user friendly interface.
89 *****************************************************************************/
91 #define MODULE_CONFIG_START \
92 static module_config_t p_config[] = {
94 #define MODULE_CONFIG_STOP \
95 { MODULE_CONFIG_ITEM_END, NULL, NULL, NULL, NULL, 0, NULL, 0 } };
97 #define ADD_CATEGORY_HINT( text, longtext ) \
98 { MODULE_CONFIG_ITEM_CATEGORY, NULL, text, longtext, NULL, 0, NULL, 0 },
99 #define ADD_SUBCATEGORY_HINT( text, longtext ) \
100 { MODULE_CONFIG_ITEM_SUBCATEGORY, NULL, text, longtext, NULL, 0, NULL, 0 },
101 #define END_SUBCATEGORY_HINT \
102 { MODULE_CONFIG_ITEM_SUBCATEGORY_END, NULL, NULL, NULL, NULL, 0, NULL, 0 },
103 #define ADD_STRING( name, value, p_callback, text, longtext ) \
104 { MODULE_CONFIG_ITEM_STRING, name, text, longtext, value, 0, \
106 #define ADD_FILE( name, psz_value, p_callback, text, longtext ) \
107 { MODULE_CONFIG_ITEM_FILE, name, text, longtext, psz_value, 0, \
109 #define ADD_PLUGIN( name, i_capability, psz_value, p_callback, text, longtext)\
110 { MODULE_CONFIG_ITEM_PLUGIN, name, text, longtext, psz_value, \
111 i_capability, p_callback, 0 },
112 #define ADD_INTEGER( name, i_value, p_callback, text, longtext ) \
113 { MODULE_CONFIG_ITEM_INTEGER, name, text, longtext, NULL, i_value, \
115 #define ADD_BOOL( name, p_callback, text, longtext ) \
116 { MODULE_CONFIG_ITEM_BOOL, name, text, longtext, NULL, 0, p_callback, 0 },