include/asterisk/agi.h

   1 /*
   2  * Asterisk -- An open source telephony toolkit.
   3  *
   4  * Copyright (C) 1999 - 2005, Digium, Inc.
   5  *
   6  * Mark Spencer <markster@digium.com>
   7  *
   8  * See http://www.asterisk.org for more information about
   9  * the Asterisk project. Please do not directly contact
  10  * any of the maintainers of this project for assistance;
  11  * the project provides a web site, mailing lists and IRC
  12  * channels for your use.
  13  *
  14  * This program is free software, distributed under the terms of
  15  * the GNU General Public License Version 2. See the LICENSE file
  16  * at the top of the source tree.
  17  */
  18
  19 /*! \file
  20  * \brief AGI Extension interfaces - Asterisk Gateway Interface
  21  */
  22
  23 #ifndef _ASTERISK_AGI_H
  24 #define _ASTERISK_AGI_H
  25
  26 #if defined(__cplusplus) || defined(c_plusplus)
  27 extern "C" {
  28 #endif
  29
  30 typedef struct agi_state {
  31         int fd;         /* FD for general output */
  32         int audio;      /* FD for audio output */
  33         int audio_in;   /* FD for audio output */
  34         int ctrl;       /* FD for input control */
  35         unsigned int fast:1; /* flag for fast agi or not */
  36 } AGI;
  37
  38 typedef struct agi_command {
  39         /* Null terminated list of the words of the command */
  40         char *cmda[AST_MAX_CMD_LEN];
  41         /* Handler for the command (channel, AGI state, # of arguments, argument list).
  42             Returns RESULT_SHOWUSAGE for improper arguments */
  43         int (*handler)(struct ast_channel *chan, AGI *agi, int argc, char *argv[]);
  44         /* Summary of the command (< 60 characters) */
  45         char *summary;
  46         /* Detailed usage information */
  47         char *usage;
  48         struct agi_command *next;
  49 } agi_command;
  50
  51 int ast_agi_register(agi_command *cmd);
  52 void ast_agi_unregister(agi_command *cmd);
  53
  54 #if defined(__cplusplus) || defined(c_plusplus)
  55 }
  56 #endif
  57
  58 #endif /* _ASTERISK_AGI_H */