path: root/main/channel_internal_api.c

/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 2012, Digium, Inc.
 *
 * Mark Spencer <markster@digium.com>
 *
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2. See the LICENSE file
 * at the top of the source tree.
 */

/*! \file
 *
 * \brief Channel Accessor API
 *
 * This file is intended to be the only file that ever accesses the
 * internals of an ast_channel. All other files should use the
 * accessor functions defined here.
 *
 * \author Terry Wilson
 */

#include "asterisk.h"

ASTERISK_FILE_VERSION(__FILE__, "$Revision$")

#include <unistd.h>
#include <fcntl.h>

#include "asterisk/channel.h"
#include "asterisk/stringfields.h"
#include "asterisk/data.h"
#include "asterisk/indications.h"

/* AST_DATA definitions, which will probably have to be re-thought since the channel will be opaque */

#if 0	/* XXX AstData: ast_callerid no longer exists. (Equivalent code not readily apparent.) */
#define DATA_EXPORT_CALLERID(MEMBER)				\
	MEMBER(ast_callerid, cid_dnid, AST_DATA_STRING)		\
	MEMBER(ast_callerid, cid_num, AST_DATA_STRING)		\
	MEMBER(ast_callerid, cid_name, AST_DATA_STRING)		\
	MEMBER(ast_callerid, cid_ani, AST_DATA_STRING)		\
	MEMBER(ast_callerid, cid_pres, AST_DATA_INTEGER)	\
	MEMBER(ast_callerid, cid_ani2, AST_DATA_INTEGER)	\
	MEMBER(ast_callerid, cid_tag, AST_DATA_STRING)

AST_DATA_STRUCTURE(ast_callerid, DATA_EXPORT_CALLERID);
#endif

#define DATA_EXPORT_CHANNEL(MEMBER)						\
	MEMBER(ast_channel, __do_not_use_blockproc, AST_DATA_STRING)				\
	MEMBER(ast_channel, __do_not_use_appl, AST_DATA_STRING)				\
	MEMBER(ast_channel, __do_not_use_data, AST_DATA_STRING)				\
	MEMBER(ast_channel, __do_not_use_name, AST_DATA_STRING) \
	MEMBER(ast_channel, __do_not_use_language, AST_DATA_STRING)				\
	MEMBER(ast_channel, __do_not_use_musicclass, AST_DATA_STRING)			\
	MEMBER(ast_channel, __do_not_use_accountcode, AST_DATA_STRING)			\
	MEMBER(ast_channel, __do_not_use_peeraccount, AST_DATA_STRING)			\
	MEMBER(ast_channel, __do_not_use_userfield, AST_DATA_STRING)				\
	MEMBER(ast_channel, __do_not_use_call_forward, AST_DATA_STRING)			\
	MEMBER(ast_channel, __do_not_use_uniqueid, AST_DATA_STRING)				\
	MEMBER(ast_channel, __do_not_use_linkedid, AST_DATA_STRING)				\
	MEMBER(ast_channel, __do_not_use_parkinglot, AST_DATA_STRING)			\
	MEMBER(ast_channel, __do_not_use_hangupsource, AST_DATA_STRING)			\
	MEMBER(ast_channel, __do_not_use_dialcontext, AST_DATA_STRING)			\
	MEMBER(ast_channel, __do_not_use_rings, AST_DATA_INTEGER)				\
	MEMBER(ast_channel, __do_not_use_priority, AST_DATA_INTEGER)				\
	MEMBER(ast_channel, __do_not_use_macropriority, AST_DATA_INTEGER)			\
	MEMBER(ast_channel, __do_not_use_adsicpe, AST_DATA_INTEGER)				\
	MEMBER(ast_channel, __do_not_use_fin, AST_DATA_UNSIGNED_INTEGER)			\
	MEMBER(ast_channel, __do_not_use_fout, AST_DATA_UNSIGNED_INTEGER)			\
	MEMBER(ast_channel, __do_not_use_emulate_dtmf_duration, AST_DATA_UNSIGNED_INTEGER)	\
	MEMBER(ast_channel, __do_not_use_visible_indication, AST_DATA_INTEGER)		\
	MEMBER(ast_channel, __do_not_use_context, AST_DATA_STRING)				\
	MEMBER(ast_channel, __do_not_use_exten, AST_DATA_STRING)				\
	MEMBER(ast_channel, __do_not_use_macrocontext, AST_DATA_STRING)			\
	MEMBER(ast_channel, __do_not_use_macroexten, AST_DATA_STRING)

AST_DATA_STRUCTURE(ast_channel, DATA_EXPORT_CHANNEL);

static void channel_data_add_flags(struct ast_data *tree,
	struct ast_channel *chan)
{
	ast_data_add_bool(tree, "DEFER_DTMF", ast_test_flag(chan, AST_FLAG_DEFER_DTMF));
	ast_data_add_bool(tree, "WRITE_INT", ast_test_flag(chan, AST_FLAG_WRITE_INT));
	ast_data_add_bool(tree, "BLOCKING", ast_test_flag(chan, AST_FLAG_BLOCKING));
	ast_data_add_bool(tree, "ZOMBIE", ast_test_flag(chan, AST_FLAG_ZOMBIE));
	ast_data_add_bool(tree, "EXCEPTION", ast_test_flag(chan, AST_FLAG_EXCEPTION));
	ast_data_add_bool(tree, "MOH", ast_test_flag(chan, AST_FLAG_MOH));
	ast_data_add_bool(tree, "SPYING", ast_test_flag(chan, AST_FLAG_SPYING));
	ast_data_add_bool(tree, "NBRIDGE", ast_test_flag(chan, AST_FLAG_NBRIDGE));
	ast_data_add_bool(tree, "IN_AUTOLOOP", ast_test_flag(chan, AST_FLAG_IN_AUTOLOOP));
	ast_data_add_bool(tree, "OUTGOING", ast_test_flag(chan, AST_FLAG_OUTGOING));
	ast_data_add_bool(tree, "IN_DTMF", ast_test_flag(chan, AST_FLAG_IN_DTMF));
	ast_data_add_bool(tree, "EMULATE_DTMF", ast_test_flag(chan, AST_FLAG_EMULATE_DTMF));
	ast_data_add_bool(tree, "END_DTMF_ONLY", ast_test_flag(chan, AST_FLAG_END_DTMF_ONLY));
	ast_data_add_bool(tree, "ANSWERED_ELSEWHERE", ast_test_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE));
	ast_data_add_bool(tree, "MASQ_NOSTREAM", ast_test_flag(chan, AST_FLAG_MASQ_NOSTREAM));
	ast_data_add_bool(tree, "BRIDGE_HANGUP_RUN", ast_test_flag(chan, AST_FLAG_BRIDGE_HANGUP_RUN));
	ast_data_add_bool(tree, "BRIDGE_HANGUP_DONT", ast_test_flag(chan, AST_FLAG_BRIDGE_HANGUP_DONT));
	ast_data_add_bool(tree, "DISABLE_WORKAROUNDS", ast_test_flag(chan, AST_FLAG_DISABLE_WORKAROUNDS));
}

int ast_channel_data_add_structure(struct ast_data *tree,
	struct ast_channel *chan, int add_bridged)
{
	struct ast_channel *bc;
	struct ast_data *data_bridged;
	struct ast_data *data_cdr;
	struct ast_data *data_flags;
	struct ast_data *data_zones;
	struct ast_data *enum_node;
	struct ast_data *data_softhangup;
#if 0	/* XXX AstData: ast_callerid no longer exists. (Equivalent code not readily apparent.) */
	struct ast_data *data_callerid;
	char value_str[100];
#endif

	if (!tree) {
		return -1;
	}

	ast_data_add_structure(ast_channel, tree, chan);

	if (add_bridged) {
		bc = ast_bridged_channel(chan);
		if (bc) {
			data_bridged = ast_data_add_node(tree, "bridged");
			if (!data_bridged) {
				return -1;
			}
			ast_channel_data_add_structure(data_bridged, bc, 0);
		}
	}

	ast_data_add_codec(tree, "oldwriteformat", ast_channel_oldwriteformat(chan));
	ast_data_add_codec(tree, "readformat", ast_channel_readformat(chan));
	ast_data_add_codec(tree, "writeformat", ast_channel_writeformat(chan));
	ast_data_add_codec(tree, "rawreadformat", ast_channel_rawreadformat(chan));
	ast_data_add_codec(tree, "rawwriteformat", ast_channel_rawwriteformat(chan));
	ast_data_add_codecs(tree, "nativeformats", ast_channel_nativeformats(chan));

	/* state */
	enum_node = ast_data_add_node(tree, "state");
	if (!enum_node) {
		return -1;
	}
	ast_data_add_str(enum_node, "text", ast_state2str(ast_channel_state(chan)));
	ast_data_add_int(enum_node, "value", ast_channel_state(chan));

	/* hangupcause */
	enum_node = ast_data_add_node(tree, "hangupcause");
	if (!enum_node) {
		return -1;
	}
	ast_data_add_str(enum_node, "text", ast_cause2str(ast_channel_hangupcause(chan)));
	ast_data_add_int(enum_node, "value", ast_channel_hangupcause(chan));

	/* amaflags */
	enum_node = ast_data_add_node(tree, "amaflags");
	if (!enum_node) {
		return -1;
	}
	ast_data_add_str(enum_node, "text", ast_cdr_flags2str(ast_channel_amaflags(chan)));
	ast_data_add_int(enum_node, "value", ast_channel_amaflags(chan));

	/* transfercapability */
	enum_node = ast_data_add_node(tree, "transfercapability");
	if (!enum_node) {
		return -1;
	}
	ast_data_add_str(enum_node, "text", ast_transfercapability2str(ast_channel_transfercapability(chan)));
	ast_data_add_int(enum_node, "value", ast_channel_transfercapability(chan));

	/* _softphangup */
	data_softhangup = ast_data_add_node(tree, "softhangup");
	if (!data_softhangup) {
		return -1;
	}
	ast_data_add_bool(data_softhangup, "dev", ast_channel_softhangup_internal_flag(chan) & AST_SOFTHANGUP_DEV);
	ast_data_add_bool(data_softhangup, "asyncgoto", ast_channel_softhangup_internal_flag(chan) & AST_SOFTHANGUP_ASYNCGOTO);
	ast_data_add_bool(data_softhangup, "shutdown", ast_channel_softhangup_internal_flag(chan) & AST_SOFTHANGUP_SHUTDOWN);
	ast_data_add_bool(data_softhangup, "timeout", ast_channel_softhangup_internal_flag(chan) & AST_SOFTHANGUP_TIMEOUT);
	ast_data_add_bool(data_softhangup, "appunload", ast_channel_softhangup_internal_flag(chan) & AST_SOFTHANGUP_APPUNLOAD);
	ast_data_add_bool(data_softhangup, "explicit", ast_channel_softhangup_internal_flag(chan) & AST_SOFTHANGUP_EXPLICIT);
	ast_data_add_bool(data_softhangup, "unbridge", ast_channel_softhangup_internal_flag(chan) & AST_SOFTHANGUP_UNBRIDGE);

	/* channel flags */
	data_flags = ast_data_add_node(tree, "flags");
	if (!data_flags) {
		return -1;
	}
	channel_data_add_flags(data_flags, chan);

	ast_data_add_uint(tree, "timetohangup", ast_channel_whentohangup(chan)->tv_sec);

#if 0	/* XXX AstData: ast_callerid no longer exists. (Equivalent code not readily apparent.) */
	/* callerid */
	data_callerid = ast_data_add_node(tree, "callerid");
	if (!data_callerid) {
		return -1;
	}
	ast_data_add_structure(ast_callerid, data_callerid, &(chan->cid));
	/* insert the callerid ton */
	enum_node = ast_data_add_node(data_callerid, "cid_ton");
	if (!enum_node) {
		return -1;
	}
	ast_data_add_int(enum_node, "value", chan->cid.cid_ton);
	snprintf(value_str, sizeof(value_str), "TON: %s/Plan: %s",
		party_number_ton2str(chan->cid.cid_ton),
		party_number_plan2str(chan->cid.cid_ton));
	ast_data_add_str(enum_node, "text", value_str);
#endif

	/* tone zone */
	if (ast_channel_zone(chan)) {
		data_zones = ast_data_add_node(tree, "zone");
		if (!data_zones) {
			return -1;
		}
		ast_tone_zone_data_add_structure(data_zones, ast_channel_zone(chan));
	}

	/* insert cdr */
	data_cdr = ast_data_add_node(tree, "cdr");
	if (!data_cdr) {
		return -1;
	}

	ast_cdr_data_add_structure(data_cdr, ast_channel_cdr(chan), 1);

	return 0;
}

int ast_channel_data_cmp_structure(const struct ast_data_search *tree,
	struct ast_channel *chan, const char *structure_name)
{
	return ast_data_search_cmp_structure(tree, ast_channel, chan, structure_name);
}

/* ACCESSORS */

#define DEFINE_STRINGFIELD_SETTERS_FOR(field) \
void ast_channel_##field##_set(struct ast_channel *chan, const char *value) \
{ \
	ast_string_field_set(chan, __do_not_use_##field, value); \
} \
  \
void ast_channel_##field##_build_va(struct ast_channel *chan, const char *fmt, va_list ap) \
{ \
	ast_string_field_build_va(chan, __do_not_use_##field, fmt, ap); \
} \
void ast_channel_##field##_build(struct ast_channel *chan, const char *fmt, ...) \
{ \
	va_list ap; \
	va_start(ap, fmt); \
	ast_channel_##field##_build_va(chan, fmt, ap); \
	va_end(ap); \
}

DEFINE_STRINGFIELD_SETTERS_FOR(name)
DEFINE_STRINGFIELD_SETTERS_FOR(language)
DEFINE_STRINGFIELD_SETTERS_FOR(musicclass)
DEFINE_STRINGFIELD_SETTERS_FOR(accountcode)
DEFINE_STRINGFIELD_SETTERS_FOR(peeraccount)
DEFINE_STRINGFIELD_SETTERS_FOR(userfield)
DEFINE_STRINGFIELD_SETTERS_FOR(call_forward)
DEFINE_STRINGFIELD_SETTERS_FOR(uniqueid)
DEFINE_STRINGFIELD_SETTERS_FOR(linkedid)
DEFINE_STRINGFIELD_SETTERS_FOR(parkinglot)
DEFINE_STRINGFIELD_SETTERS_FOR(hangupsource)
DEFINE_STRINGFIELD_SETTERS_FOR(dialcontext)

#define DEFINE_STRINGFIELD_GETTER_FOR(field) const char *ast_channel_##field(const struct ast_channel *chan) \
{ \
	return chan->__do_not_use_##field; \
}

DEFINE_STRINGFIELD_GETTER_FOR(name)
DEFINE_STRINGFIELD_GETTER_FOR(language)
DEFINE_STRINGFIELD_GETTER_FOR(musicclass)
DEFINE_STRINGFIELD_GETTER_FOR(accountcode)
DEFINE_STRINGFIELD_GETTER_FOR(peeraccount)
DEFINE_STRINGFIELD_GETTER_FOR(userfield)
DEFINE_STRINGFIELD_GETTER_FOR(call_forward)
DEFINE_STRINGFIELD_GETTER_FOR(uniqueid)
DEFINE_STRINGFIELD_GETTER_FOR(linkedid)
DEFINE_STRINGFIELD_GETTER_FOR(parkinglot)
DEFINE_STRINGFIELD_GETTER_FOR(hangupsource)
DEFINE_STRINGFIELD_GETTER_FOR(dialcontext)

const char *ast_channel_appl(const struct ast_channel *chan)
{
	return chan->__do_not_use_appl;
}
void ast_channel_appl_set(struct ast_channel *chan, const char *value)
{
	chan->__do_not_use_appl = value;
}
const char *ast_channel_blockproc(const struct ast_channel *chan)
{
	return chan->__do_not_use_blockproc;
}
void ast_channel_blockproc_set(struct ast_channel *chan, const char *value)
{
	chan->__do_not_use_blockproc = value;
}
const char *ast_channel_data(const struct ast_channel *chan)
{
	return chan->__do_not_use_data;
}
void ast_channel_data_set(struct ast_channel *chan, const char *value)
{
	chan->__do_not_use_data = value;
}


const char *ast_channel_context(const struct ast_channel *chan)
{
	return chan->__do_not_use_context;
}
void ast_channel_context_set(struct ast_channel *chan, const char *value)
{
	ast_copy_string(chan->__do_not_use_context, value, sizeof(chan->__do_not_use_context));
}
const char *ast_channel_exten(const struct ast_channel *chan)
{
	return chan->__do_not_use_exten;
}
void ast_channel_exten_set(struct ast_channel *chan, const char *value)
{
	ast_copy_string(chan->__do_not_use_exten, value, sizeof(chan->__do_not_use_exten));
}
const char *ast_channel_macrocontext(const struct ast_channel *chan)
{
	return chan->__do_not_use_macrocontext;
}
void ast_channel_macrocontext_set(struct ast_channel *chan, const char *value)
{
	ast_copy_string(chan->__do_not_use_macrocontext, value, sizeof(chan->__do_not_use_macrocontext));
}
const char *ast_channel_macroexten(const struct ast_channel *chan)
{
	return chan->__do_not_use_macroexten;
}
void ast_channel_macroexten_set(struct ast_channel *chan, const char *value)
{
	ast_copy_string(chan->__do_not_use_macroexten, value, sizeof(chan->__do_not_use_macroexten));
}


char ast_channel_dtmf_digit_to_emulate(const struct ast_channel *chan)
{
	return chan->__do_not_use_dtmf_digit_to_emulate;
}
void ast_channel_dtmf_digit_to_emulate_set(struct ast_channel *chan, char value)
{
	chan->__do_not_use_dtmf_digit_to_emulate = value;
}
int ast_channel_amaflags(const struct ast_channel *chan)
{
	return chan->__do_not_use_amaflags;
}
void ast_channel_amaflags_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_amaflags = value;
}
#ifdef HAVE_EPOLL
int ast_channel_epfd(const struct ast_channel *chan)
{
	return chan->__do_not_use_epfd;
}
void ast_channel_epfd_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_epfd = value;
}
#endif
int ast_channel_fdno(const struct ast_channel *chan)
{
	return chan->__do_not_use_fdno;
}
void ast_channel_fdno_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_fdno = value;
}
int ast_channel_hangupcause(const struct ast_channel *chan)
{
	return chan->__do_not_use_hangupcause;
}
void ast_channel_hangupcause_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_hangupcause = value;
}
int ast_channel_macropriority(const struct ast_channel *chan)
{
	return chan->__do_not_use_macropriority;
}
void ast_channel_macropriority_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_macropriority = value;
}
int ast_channel_priority(const struct ast_channel *chan)
{
	return chan->__do_not_use_priority;
}
void ast_channel_priority_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_priority = value;
}
int ast_channel_rings(const struct ast_channel *chan)
{
	return chan->__do_not_use_rings;
}
void ast_channel_rings_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_rings = value;
}
int ast_channel_streamid(const struct ast_channel *chan)
{
	return chan->__do_not_use_streamid;
}
void ast_channel_streamid_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_streamid = value;
}
int ast_channel_timingfd(const struct ast_channel *chan)
{
	return chan->__do_not_use_timingfd;
}
void ast_channel_timingfd_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_timingfd = value;
}
int ast_channel_visible_indication(const struct ast_channel *chan)
{
	return chan->__do_not_use_visible_indication;
}
void ast_channel_visible_indication_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_visible_indication = value;
}
int ast_channel_vstreamid(const struct ast_channel *chan)
{
	return chan->__do_not_use_vstreamid;
}
void ast_channel_vstreamid_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_vstreamid = value;
}
unsigned short ast_channel_transfercapability(const struct ast_channel *chan)
{
	return chan->__do_not_use_transfercapability;
}
void ast_channel_transfercapability_set(struct ast_channel *chan, unsigned short value)
{
	chan->__do_not_use_transfercapability = value;
}
unsigned int ast_channel_emulate_dtmf_duration(const struct ast_channel *chan)
{
	return chan->__do_not_use_emulate_dtmf_duration;
}
void ast_channel_emulate_dtmf_duration_set(struct ast_channel *chan, unsigned int value)
{
	chan->__do_not_use_emulate_dtmf_duration = value;
}
unsigned int ast_channel_fin(const struct ast_channel *chan)
{
	return chan->__do_not_use_fin;
}
void ast_channel_fin_set(struct ast_channel *chan, unsigned int value)
{
	chan->__do_not_use_fin = value;
}
unsigned int ast_channel_fout(const struct ast_channel *chan)
{
	return chan->__do_not_use_fout;
}
void ast_channel_fout_set(struct ast_channel *chan, unsigned int value)
{
	chan->__do_not_use_fout = value;
}
unsigned long ast_channel_insmpl(const struct ast_channel *chan)
{
	return chan->__do_not_use_insmpl;
}
void ast_channel_insmpl_set(struct ast_channel *chan, unsigned long value)
{
	chan->__do_not_use_insmpl = value;
}
unsigned long ast_channel_outsmpl(const struct ast_channel *chan)
{
	return chan->__do_not_use_outsmpl;
}
void ast_channel_outsmpl_set(struct ast_channel *chan, unsigned long value)
{
	chan->__do_not_use_outsmpl = value;
}
void *ast_channel_generatordata(const struct ast_channel *chan)
{
	return chan->__do_not_use_generatordata;
}
void ast_channel_generatordata_set(struct ast_channel *chan, void *value)
{
	chan->__do_not_use_generatordata = value;
}
void *ast_channel_music_state(const struct ast_channel *chan)
{
	return chan->__do_not_use_music_state;
}
void ast_channel_music_state_set(struct ast_channel *chan, void *value)
{
	chan->__do_not_use_music_state = value;
}
void *ast_channel_tech_pvt(const struct ast_channel *chan)
{
	return chan->__do_not_use_tech_pvt;
}
void ast_channel_tech_pvt_set(struct ast_channel *chan, void *value)
{
	chan->__do_not_use_tech_pvt = value;
}
void *ast_channel_timingdata(const struct ast_channel *chan)
{
	return chan->__do_not_use_timingdata;
}
void ast_channel_timingdata_set(struct ast_channel *chan, void *value)
{
	chan->__do_not_use_timingdata = value;
}
struct ast_audiohook_list *ast_channel_audiohooks(const struct ast_channel *chan)
{
	return chan->__do_not_use_audiohooks;
}
void ast_channel_audiohooks_set(struct ast_channel *chan, struct ast_audiohook_list *value)
{
	chan->__do_not_use_audiohooks = value;
}
struct ast_cdr *ast_channel_cdr(const struct ast_channel *chan)
{
	return chan->__do_not_use_cdr;
}
void ast_channel_cdr_set(struct ast_channel *chan, struct ast_cdr *value)
{
	chan->__do_not_use_cdr = value;
}
struct ast_channel *ast_channel_masq(const struct ast_channel *chan)
{
	return chan->__do_not_use_masq;
}
void ast_channel_masq_set(struct ast_channel *chan, struct ast_channel *value)
{
	chan->__do_not_use_masq = value;
}
struct ast_channel *ast_channel_masqr(const struct ast_channel *chan)
{
	return chan->__do_not_use_masqr;
}
void ast_channel_masqr_set(struct ast_channel *chan, struct ast_channel *value)
{
	chan->__do_not_use_masqr = value;
}
struct ast_channel_monitor *ast_channel_monitor(const struct ast_channel *chan)
{
	return chan->__do_not_use_monitor;
}
void ast_channel_monitor_set(struct ast_channel *chan, struct ast_channel_monitor *value)
{
	chan->__do_not_use_monitor = value;
}
struct ast_filestream *ast_channel_stream(const struct ast_channel *chan)
{
	return chan->__do_not_use_stream;
}
void ast_channel_stream_set(struct ast_channel *chan, struct ast_filestream *value)
{
	chan->__do_not_use_stream = value;
}
struct ast_filestream *ast_channel_vstream(const struct ast_channel *chan)
{
	return chan->__do_not_use_vstream;
}
void ast_channel_vstream_set(struct ast_channel *chan, struct ast_filestream *value)
{
	chan->__do_not_use_vstream = value;
}
struct ast_format_cap *ast_channel_nativeformats(const struct ast_channel *chan)
{
	return chan->__do_not_use_nativeformats;
}
void ast_channel_nativeformats_set(struct ast_channel *chan, struct ast_format_cap *value)
{
	chan->__do_not_use_nativeformats = value;
}
struct ast_framehook_list *ast_channel_framehooks(const struct ast_channel *chan)
{
	return chan->__do_not_use_framehooks;
}
void ast_channel_framehooks_set(struct ast_channel *chan, struct ast_framehook_list *value)
{
	chan->__do_not_use_framehooks = value;
}
struct ast_generator *ast_channel_generator(const struct ast_channel *chan)
{
	return chan->__do_not_use_generator;
}
void ast_channel_generator_set(struct ast_channel *chan, struct ast_generator *value)
{
	chan->__do_not_use_generator = value;
}
struct ast_pbx *ast_channel_pbx(const struct ast_channel *chan)
{
	return chan->__do_not_use_pbx;
}
void ast_channel_pbx_set(struct ast_channel *chan, struct ast_pbx *value)
{
	chan->__do_not_use_pbx = value;
}
struct ast_sched_context *ast_channel_sched(const struct ast_channel *chan)
{
	return chan->__do_not_use_sched;
}
void ast_channel_sched_set(struct ast_channel *chan, struct ast_sched_context *value)
{
	chan->__do_not_use_sched = value;
}
struct ast_timer *ast_channel_timer(const struct ast_channel *chan)
{
	return chan->__do_not_use_timer;
}
void ast_channel_timer_set(struct ast_channel *chan, struct ast_timer *value)
{
	chan->__do_not_use_timer = value;
}
struct ast_tone_zone *ast_channel_zone(const struct ast_channel *chan)
{
	return chan->__do_not_use_zone;
}
void ast_channel_zone_set(struct ast_channel *chan, struct ast_tone_zone *value)
{
	chan->__do_not_use_zone = value;
}
struct ast_trans_pvt *ast_channel_readtrans(const struct ast_channel *chan)
{
	return chan->__do_not_use_readtrans;
}
void ast_channel_readtrans_set(struct ast_channel *chan, struct ast_trans_pvt *value)
{
	chan->__do_not_use_readtrans = value;
}
struct ast_trans_pvt *ast_channel_writetrans(const struct ast_channel *chan)
{
	return chan->__do_not_use_writetrans;
}
void ast_channel_writetrans_set(struct ast_channel *chan, struct ast_trans_pvt *value)
{
	chan->__do_not_use_writetrans = value;
}
const struct ast_channel_tech *ast_channel_tech(const struct ast_channel *chan)
{
	return chan->__do_not_use_tech;
}
void ast_channel_tech_set(struct ast_channel *chan, const struct ast_channel_tech *value)
{
	chan->__do_not_use_tech = value;
}
enum ast_channel_adsicpe ast_channel_adsicpe(const struct ast_channel *chan)
{
	return chan->__do_not_use_adsicpe;
}
void ast_channel_adsicpe_set(struct ast_channel *chan, enum ast_channel_adsicpe value)
{
	chan->__do_not_use_adsicpe = value;
}
enum ast_channel_state ast_channel_state(const struct ast_channel *chan)
{
	return chan->__do_not_use_state;
}
void ast_channel_state_set(struct ast_channel *chan, enum ast_channel_state value)
{
	chan->__do_not_use_state = value;
}
struct ast_format *ast_channel_oldwriteformat(struct ast_channel *chan)
{
	return &chan->__do_not_use_oldwriteformat;
}
struct ast_format *ast_channel_rawreadformat(struct ast_channel *chan)
{
	return &chan->__do_not_use_rawreadformat;
}
struct ast_format *ast_channel_rawwriteformat(struct ast_channel *chan)
{
	return &chan->__do_not_use_rawwriteformat;
}
struct ast_format *ast_channel_readformat(struct ast_channel *chan)
{
	return &chan->__do_not_use_readformat;
}
struct ast_format *ast_channel_writeformat(struct ast_channel *chan)
{
	return &chan->__do_not_use_writeformat;
}
struct ast_datastore_list *ast_channel_datastores(struct ast_channel *chan)
{
	return &chan->__do_not_use_datastores;
}
struct ast_autochan_list *ast_channel_autochans(struct ast_channel *chan)
{
	return &chan->__do_not_use_autochans;
}
struct ast_readq_list *ast_channel_readq(struct ast_channel *chan)
{
	return &chan->__do_not_use_readq;
}
struct ast_frame *ast_channel_dtmff(struct ast_channel *chan)
{
	return &chan->__do_not_use_dtmff;
}
struct ast_jb *ast_channel_jb(struct ast_channel *chan)
{
	return &chan->__do_not_use_jb;
}
struct ast_party_caller *ast_channel_caller(struct ast_channel *chan)
{
	return &chan->__do_not_use_caller;
}
struct ast_party_connected_line *ast_channel_connected(struct ast_channel *chan)
{
	return &chan->__do_not_use_connected;
}
struct ast_party_dialed *ast_channel_dialed(struct ast_channel *chan)
{
	return &chan->__do_not_use_dialed;
}
struct ast_party_redirecting *ast_channel_redirecting(struct ast_channel *chan)
{
	return &chan->__do_not_use_redirecting;
}
struct timeval *ast_channel_dtmf_tv(struct ast_channel *chan)
{
	return &chan->__do_not_use_dtmf_tv;
}
struct timeval *ast_channel_whentohangup(struct ast_channel *chan)
{
	return &chan->__do_not_use_whentohangup;
}
struct varshead *ast_channel_varshead(struct ast_channel *chan)
{
	return &chan->__do_not_use_varshead;
}
void ast_channel_dtmff_set(struct ast_channel *chan, struct ast_frame *value)
{
	memcpy(&chan->__do_not_use_dtmff, value, sizeof(chan->__do_not_use_dtmff));
}
void ast_channel_jb_set(struct ast_channel *chan, struct ast_jb *value)
{
	memcpy(&chan->__do_not_use_jb, value, sizeof(chan->__do_not_use_jb));
}
void ast_channel_caller_set(struct ast_channel *chan, struct ast_party_caller *value)
{
	memcpy(&chan->__do_not_use_caller, value, sizeof(chan->__do_not_use_caller));
}
void ast_channel_connected_set(struct ast_channel *chan, struct ast_party_connected_line *value)
{
	memcpy(&chan->__do_not_use_connected, value, sizeof(chan->__do_not_use_connected));
}
void ast_channel_dialed_set(struct ast_channel *chan, struct ast_party_dialed *value)
{
	memcpy(&chan->__do_not_use_dialed, value, sizeof(chan->__do_not_use_dialed));
}
void ast_channel_redirecting_set(struct ast_channel *chan, struct ast_party_redirecting *value)
{
	memcpy(&chan->__do_not_use_redirecting, value, sizeof(chan->__do_not_use_redirecting));
}
void ast_channel_dtmf_tv_set(struct ast_channel *chan, struct timeval *value)
{
	memcpy(&chan->__do_not_use_dtmf_tv, value, sizeof(chan->__do_not_use_dtmf_tv));
}
void ast_channel_whentohangup_set(struct ast_channel *chan, struct timeval *value)
{
	memcpy(&chan->__do_not_use_whentohangup, value, sizeof(chan->__do_not_use_whentohangup));
}
void ast_channel_varshead_set(struct ast_channel *chan, struct varshead *value)
{
	memcpy(&chan->__do_not_use_varshead, value, sizeof(chan->__do_not_use_varshead));
}

/* Evil softhangup accessors */
int ast_channel_softhangup_internal_flag(struct ast_channel * chan)
{
	return chan->__do_not_use_softhangup;
}
void ast_channel_softhangup_internal_flag_set(struct ast_channel *chan, int value)
{
	chan->__do_not_use_softhangup = value;
}
void ast_channel_softhangup_internal_flag_add(struct ast_channel *chan, int value)
{
	chan->__do_not_use_softhangup |= value;
}
void ast_channel_softhangup_internal_flag_clear(struct ast_channel *chan, int value)
{
	chan ->__do_not_use_softhangup &= ~value;
}

/* Typedef accessors */
ast_group_t ast_channel_callgroup(const struct ast_channel *chan)
{
	return chan->__do_not_use_callgroup;
}
void ast_channel_callgroup_set(struct ast_channel *chan, ast_group_t value)
{
	chan->__do_not_use_callgroup = value;
}
ast_group_t ast_channel_pickupgroup(const struct ast_channel *chan)
{
	return chan->__do_not_use_pickupgroup;
}
void ast_channel_pickupgroup_set(struct ast_channel *chan, ast_group_t value)
{
	chan->__do_not_use_pickupgroup = value;
}

/* Alertpipe functions */
int ast_channel_alert_write(struct ast_channel *chan)
{
	char blah = 0x7F;
	return ast_channel_alert_writable(chan) && write(chan->__do_not_use_alertpipe[1], &blah, sizeof(blah)) != sizeof(blah);
}

ast_alert_status_t ast_channel_internal_alert_read(struct ast_channel *chan)
{
	int flags;
	char blah;

	if (!ast_channel_internal_alert_readable(chan)) {
		return AST_ALERT_NOT_READABLE;
	}

	flags = fcntl(chan->__do_not_use_alertpipe[0], F_GETFL);
	/* For some odd reason, the alertpipe occasionally loses nonblocking status,
	 * which immediately causes a deadlock scenario.  Detect and prevent this. */
	if ((flags & O_NONBLOCK) == 0) {
		ast_log(LOG_ERROR, "Alertpipe on channel %s lost O_NONBLOCK?!!\n", ast_channel_name(chan));
		if (fcntl(chan->__do_not_use_alertpipe[0], F_SETFL, flags | O_NONBLOCK) < 0) {
			ast_log(LOG_WARNING, "Unable to set alertpipe nonblocking! (%d: %s)\n", errno, strerror(errno));
			return AST_ALERT_READ_FATAL;
		}
	}
	if (read(chan->__do_not_use_alertpipe[0], &blah, sizeof(blah)) < 0) {
		if (errno != EINTR && errno != EAGAIN) {
			ast_log(LOG_WARNING, "read() failed: %s\n", strerror(errno));
			return AST_ALERT_READ_FAIL;
		}
	}

	return AST_ALERT_READ_SUCCESS;
}

int ast_channel_alert_writable(struct ast_channel *chan)
{
	return chan->__do_not_use_alertpipe[1] > -1;
}

int ast_channel_internal_alert_readable(struct ast_channel *chan)
{
	return chan->__do_not_use_alertpipe[0] > -1;
}

void ast_channel_internal_alertpipe_clear(struct ast_channel *chan)
{
	chan->__do_not_use_alertpipe[0] = chan->__do_not_use_alertpipe[1] = -1;
}

void ast_channel_internal_alertpipe_close(struct ast_channel *chan)
{
	if (ast_channel_internal_alert_readable(chan)) {
		close(chan->__do_not_use_alertpipe[0]);
	}
	if (ast_channel_alert_writable(chan)) {
		close(chan->__do_not_use_alertpipe[1]);
	}
}

int ast_channel_internal_alertpipe_init(struct ast_channel *chan)
{
	if (pipe(chan->__do_not_use_alertpipe)) {
		ast_log(LOG_WARNING, "Channel allocation failed: Can't create alert pipe! Try increasing max file descriptors with ulimit -n\n");
		return -1;
	} else {
		int flags = fcntl(chan->__do_not_use_alertpipe[0], F_GETFL);
		if (fcntl(chan->__do_not_use_alertpipe[0], F_SETFL, flags | O_NONBLOCK) < 0) {
			ast_log(LOG_WARNING, "Channel allocation failed: Unable to set alertpipe nonblocking! (%d: %s)\n", errno, strerror(errno));
			return -1;
		}
		flags = fcntl(chan->__do_not_use_alertpipe[1], F_GETFL);
		if (fcntl(chan->__do_not_use_alertpipe[1], F_SETFL, flags | O_NONBLOCK) < 0) {
			ast_log(LOG_WARNING, "Channel allocation failed: Unable to set alertpipe nonblocking! (%d: %s)\n", errno, strerror(errno));
			return -1;
		}
	}
	return 0;
}

int ast_channel_internal_alert_readfd(struct ast_channel *chan)
{
	return chan->__do_not_use_alertpipe[0];
}

void ast_channel_internal_alertpipe_swap(struct ast_channel *chan1, struct ast_channel *chan2)
{
	int i;
	for (i = 0; i < ARRAY_LEN(chan1->__do_not_use_alertpipe); i++) {
		SWAP(chan1->__do_not_use_alertpipe[i], chan2->__do_not_use_alertpipe[i]);
	}
}

/* file descriptor array accessors */
void ast_channel_internal_fd_set(struct ast_channel *chan, int which, int value)
{
	chan->__do_not_use_fds[which] = value;
}
void ast_channel_internal_fd_clear(struct ast_channel *chan, int which)
{
	ast_channel_internal_fd_set(chan, which, -1);
}
void ast_channel_internal_fd_clear_all(struct ast_channel *chan)
{
	int i;
	for (i = 0; i < AST_MAX_FDS; i++) {
		ast_channel_internal_fd_clear(chan, i);
	}
}
int ast_channel_fd(const struct ast_channel *chan, int which)
{
	return chan->__do_not_use_fds[which];
}
int ast_channel_fd_isset(const struct ast_channel *chan, int which)
{
	return ast_channel_fd(chan, which) > -1;
}

#ifdef HAVE_EPOLL
struct ast_epoll_data *ast_channel_internal_epfd_data(const struct ast_channel *chan, int which)
{
	return chan->__do_not_use_epfd_data[which];
}
void ast_channel_internal_epfd_data_set(struct ast_channel *chan, int which , struct ast_epoll_data *value)
{
	chan->__do_not_use_epfd_data[which] = value;
}
#endif