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/*
* Asterisk -- A telephony toolkit for Linux.
*
* Private channel definitions for channel implementations only.
*
* Copyright (C) 1999, Mark Spencer
*
* Mark Spencer <markster@linux-support.net>
*
* This program is free software, distributed under the terms of
* the GNU General Public License
*/
#ifndef _ASTERISK_CHANNEL_PVT_H
#define _ASTERISK_CHANNEL_PVT_H
#include <asterisk/channel.h>
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
struct ast_channel_pvt {
/*! Private data used by channel backend */
void *pvt;
struct ast_frame *readq;
int alertpipe[2];
/*! Write translation path */
struct ast_trans_pvt *writetrans;
/*! Read translation path */
struct ast_trans_pvt *readtrans;
/*! Raw read format */
int rawreadformat;
/*! Raw write format */
int rawwriteformat;
/*! Send a literal DTMF digit */
int (*send_digit)(struct ast_channel *chan, char digit);
/*! Call a given phone number (address, etc), but don't
take longer than timeout seconds to do so. */
int (*call)(struct ast_channel *chan, char *addr, int timeout);
/*! Hangup (and possibly destroy) the channel */
int (*hangup)(struct ast_channel *chan);
/*! Answer the line */
int (*answer)(struct ast_channel *chan);
/*! Read a frame, in standard format */
struct ast_frame * (*read)(struct ast_channel *chan);
/*! Write a frame, in standard format */
int (*write)(struct ast_channel *chan, struct ast_frame *frame);
/*! Display or transmit text */
int (*send_text)(struct ast_channel *chan, char *text);
/*! Display or send an image */
int (*send_image)(struct ast_channel *chan, struct ast_frame *frame);
/*! Send HTML data */
int (*send_html)(struct ast_channel *chan, int subclass, char *data, int len);
/*! Handle an exception, reading a frame */
struct ast_frame * (*exception)(struct ast_channel *chan);
/*! Bridge two channels of the same type together */
int (*bridge)(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc);
/*! Indicate a particular condition (e.g. AST_CONTROL_BUSY or AST_CONTROL_RINGING or AST_CONTROL_CONGESTION */
int (*indicate)(struct ast_channel *c, int condition);
/*! Fix up a channel: If a channel is consumed, this is called. Basically update any ->owner links */
int (*fixup)(struct ast_channel *oldchan, struct ast_channel *newchan);
/*! Set a given option */
int (*setoption)(struct ast_channel *chan, int option, void *data, int datalen);
/*! Query a given option */
int (*queryoption)(struct ast_channel *chan, int option, void *data, int *datalen);
/*! Blind transfer other side */
int (*transfer)(struct ast_channel *chan, char *newdest);
/*! Write a frame, in standard format */
int (*write_video)(struct ast_channel *chan, struct ast_frame *frame);
};
//! Create a channel structure
/*! Returns NULL on failure to allocate */
struct ast_channel *ast_channel_alloc(int needalertpipe);
/*! Queue an outgoing frame, locking if necessary */
int ast_queue_frame(struct ast_channel *chan, struct ast_frame *f, int lock);
int ast_queue_hangup(struct ast_channel *chan, int lock);
int ast_queue_control(struct ast_channel *chan, int control, int lock);
/*! Change the state of a channel */
int ast_setstate(struct ast_channel *chan, int state);
void ast_change_name(struct ast_channel *chan, char *newname);
//! Free a channel structure
void ast_channel_free(struct ast_channel *);
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif
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