Sat Jul 26 06:12:51 2008

Asterisk developer's documentation


agi.h

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00001 /*
00002  * Asterisk -- An open source telephony toolkit.
00003  *
00004  * Copyright (C) 1999 - 2005, Digium, Inc.
00005  *
00006  * Mark Spencer <markster@digium.com>
00007  *
00008  * See http://www.asterisk.org for more information about
00009  * the Asterisk project. Please do not directly contact
00010  * any of the maintainers of this project for assistance;
00011  * the project provides a web site, mailing lists and IRC
00012  * channels for your use.
00013  *
00014  * This program is free software, distributed under the terms of
00015  * the GNU General Public License Version 2. See the LICENSE file
00016  * at the top of the source tree.
00017  */
00018 
00019 /*! \file
00020  * \brief AGI Extension interfaces - Asterisk Gateway Interface
00021  */
00022 
00023 #ifndef _ASTERISK_AGI_H
00024 #define _ASTERISK_AGI_H
00025 
00026 #if defined(__cplusplus) || defined(c_plusplus)
00027 extern "C" {
00028 #endif
00029 
00030 typedef struct agi_state {
00031    int fd;     /* FD for general output */
00032    int audio;  /* FD for audio output */
00033    int audio_in;  /* FD for audio output */
00034    int ctrl;   /* FD for input control */
00035    unsigned int fast:1; /* flag for fast agi or not */
00036 } AGI;
00037 
00038 typedef struct agi_command {
00039    /* Null terminated list of the words of the command */
00040    char *cmda[AST_MAX_CMD_LEN];
00041    /* Handler for the command (channel, AGI state, # of arguments, argument list). 
00042        Returns RESULT_SHOWUSAGE for improper arguments */
00043    int (*handler)(struct ast_channel *chan, AGI *agi, int argc, char *argv[]);
00044    /* Summary of the command (< 60 characters) */
00045    char *summary;
00046    /* Detailed usage information */
00047    char *usage;
00048    struct agi_command *next;
00049 } agi_command;
00050 
00051 int ast_agi_register(agi_command *cmd);
00052 void ast_agi_unregister(agi_command *cmd);
00053 
00054 #if defined(__cplusplus) || defined(c_plusplus)
00055 }
00056 #endif
00057 
00058 #endif /* _ASTERISK_AGI_H */

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