Asterisk - The Open Source Telephony Project GIT-master-67613d1
channel_internal_api.c
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1/*
2 * Asterisk -- An open source telephony toolkit.
3 *
4 * Copyright (C) 2012, 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 *
21 * \brief Channel Accessor API
22 *
23 * This file is intended to be the only file that ever accesses the
24 * internals of an ast_channel. All other files should use the
25 * accessor functions defined here.
26 *
27 * \author Terry Wilson
28 */
29
30/*** MODULEINFO
31 <support_level>core</support_level>
32 ***/
33
34#include "asterisk.h"
35
36#include <unistd.h>
37#include <fcntl.h>
38
39#include "asterisk/alertpipe.h"
40#include "asterisk/paths.h"
41#include "asterisk/channel.h"
43#include "asterisk/endpoints.h"
48#include "asterisk/stream.h"
49#include "asterisk/test.h"
50#include "asterisk/vector.h"
51
52/*!
53 * \brief Channel UniqueId structure
54 * \note channel creation time used for determining LinkedId Propagation
55 */
57 time_t creation_time; /*!< Creation time */
58 int creation_unique; /*!< sub-second unique value */
59 char unique_id[AST_MAX_UNIQUEID]; /*!< Unique Identifier */
60};
61
62/*!
63 * \brief Main Channel structure associated with a channel.
64 *
65 * \note When adding fields to this structure, it is important to add the field
66 * 'in position' with like-aligned fields, so as to keep the compiler from
67 * having to add padding to align fields. The structure's fields are sorted
68 * in this order: pointers, structures, long, int/enum, short, char. This
69 * is especially important on 64-bit architectures, where mixing 4-byte
70 * and 8-byte fields causes 4 bytes of padding to be added before many
71 * 8-byte fields.
72 */
74 const struct ast_channel_tech *tech; /*!< Technology (point to channel driver) */
75 void *tech_pvt; /*!< Private data used by the technology driver */
76 void *music_state; /*!< Music State*/
77 void *generatordata; /*!< Current generator data if there is any */
78 struct ast_generator *generator; /*!< Current active data generator */
79 struct ast_channel *masq; /*!< Channel that will masquerade as us */
80 struct ast_channel *masqr; /*!< Who we are masquerading as */
81 const char *blockproc; /*!< Procedure causing blocking */
82 const char *appl; /*!< Current application */
83 const char *data; /*!< Data passed to current application */
84 struct ast_sched_context *sched; /*!< Schedule context */
85 struct ast_filestream *stream; /*!< Stream itself. */
86 struct ast_filestream *vstream; /*!< Video Stream itself. */
89 struct ast_pbx *pbx; /*!< PBX private structure for this channel */
90 struct ast_trans_pvt *writetrans; /*!< Write translation path */
91 struct ast_trans_pvt *readtrans; /*!< Read translation path */
94 struct ast_cdr *cdr; /*!< Call Detail Record */
95 struct ast_tone_zone *zone; /*!< Tone zone as set in indications.conf or
96 * in the CHANNEL dialplan function */
97 ast_callid callid; /*!< Bound call identifier pointer */
98 struct ao2_container *dialed_causes; /*!< Contains tech-specific and Asterisk cause data from dialed channels */
99
101 AST_STRING_FIELD(name); /*!< ASCII unique channel name */
102 AST_STRING_FIELD(language); /*!< Language requested for voice prompts */
103 AST_STRING_FIELD(musicclass); /*!< Default music class */
104 AST_STRING_FIELD(latest_musicclass); /*!< Latest active music class */
105 AST_STRING_FIELD(accountcode); /*!< Account code for billing */
106 AST_STRING_FIELD(peeraccount); /*!< Peer account code for billing */
107 AST_STRING_FIELD(userfield); /*!< Userfield for CEL billing */
108 AST_STRING_FIELD(call_forward); /*!< Where to forward to if asked to dial on this interface */
109 AST_STRING_FIELD(parkinglot); /*! Default parking lot, if empty, default parking lot */
110 AST_STRING_FIELD(hangupsource); /*! Who is responsible for hanging up this channel */
111 AST_STRING_FIELD(dialcontext); /*!< Dial: Extension context that we were called from */
112 );
113
114 struct ast_channel_id uniqueid; /*!< Unique Channel Identifier - can be specified on creation */
115 struct ast_channel_id linkedid; /*!< Linked Channel Identifier - oldest propagated when bridged */
116
117 struct timeval whentohangup; /*!< Non-zero, set to actual time when channel is to be hung up */
118 pthread_t blocker; /*!< If anyone is blocking, this is them */
119
120 /*!
121 * \brief Dialed/Called information.
122 * \note Set on incoming channels to indicate the originally dialed party.
123 * \note Dialed Number Identifier (DNID)
124 */
126
127 /*!
128 * \brief Channel Caller ID information.
129 * \note The caller id information is the caller id of this
130 * channel when it is used to initiate a call.
131 */
133
134 /*!
135 * \brief Channel Connected Line ID information.
136 * \note The connected line information identifies the channel
137 * connected/bridged to this channel.
138 */
140
141 /*!
142 * \brief Channel Connected Line ID information that was last indicated.
143 */
145
146 /*! \brief Redirecting/Diversion information */
148
149 struct ast_frame dtmff; /*!< DTMF frame */
150 struct varshead varshead; /*!< A linked list for channel variables. See \ref AstChanVar */
151 ast_group_t callgroup; /*!< Call group for call pickups */
152 ast_group_t pickupgroup; /*!< Pickup group - which calls groups can be picked up? */
153 struct ast_namedgroups *named_callgroups; /*!< Named call group for call pickups */
154 struct ast_namedgroups *named_pickupgroups; /*!< Named pickup group - which call groups can be picked up? */
155 struct timeval creationtime; /*!< The time of channel creation */
156 struct timeval answertime; /*!< The time the channel was answered */
158 struct ast_jb jb; /*!< The jitterbuffer state */
159 struct timeval dtmf_tv; /*!< The time that an in process digit began, or the last digit ended */
160 struct ast_hangup_handler_list hangup_handlers;/*!< Hangup handlers on the channel. */
161 struct ast_datastore_list datastores; /*!< Data stores on the channel */
162 struct ast_autochan_list autochans; /*!< Autochans on the channel */
163 unsigned long insmpl; /*!< Track the read/written samples for monitor use */
164 unsigned long outsmpl; /*!< Track the read/written samples for monitor use */
165
166 int blocker_tid; /*!< If anyone is blocking, this is their thread id */
167 AST_VECTOR(, int) fds; /*!< File descriptors for channel -- Drivers will poll on
168 * these file descriptors, so at least one must be non -1.
169 * See \arg \ref AstFileDesc */
170 int softhangup; /*!< Whether or not we have been hung up... Do not set this value
171 * directly, use ast_softhangup() */
172 int fdno; /*!< Which fd had an event detected on */
173 int streamid; /*!< For streaming playback, the schedule ID */
174 int vstreamid; /*!< For streaming video playback, the schedule ID */
175 struct ast_format *oldwriteformat; /*!< Original writer format */
176 int timingfd; /*!< Timing fd */
177 enum ast_channel_state state; /*!< State of line -- Don't write directly, use ast_setstate() */
178 int rings; /*!< Number of rings so far */
179 int priority; /*!< Dialplan: Current extension priority */
180 int amaflags; /*!< Set BEFORE PBX is started to determine AMA flags */
181 enum ast_channel_adsicpe adsicpe; /*!< Whether or not ADSI is detected on CPE */
182 unsigned int fin; /*!< Frames in counters. The high bit is a debug mask, so
183 * the counter is only in the remaining bits */
184 unsigned int fout; /*!< Frames out counters. The high bit is a debug mask, so
185 * the counter is only in the remaining bits */
186 int hangupcause; /*!< Why is the channel hanged up. See causes.h */
187 unsigned int finalized:1; /*!< Whether or not the channel has been successfully allocated */
188 struct ast_flags flags; /*!< channel flags of AST_FLAG_ type */
189 int alertpipe[2];
190 struct ast_format_cap *nativeformats; /*!< Kinds of data this channel can natively handle */
191 struct ast_format *readformat; /*!< Requested read format (after translation) */
192 struct ast_format *writeformat; /*!< Requested write format (before translation) */
193 struct ast_format *rawreadformat; /*!< Raw read format (before translation) */
194 struct ast_format *rawwriteformat; /*!< Raw write format (after translation) */
195 unsigned int emulate_dtmf_duration; /*!< Number of ms left to emulate DTMF for */
196 int visible_indication; /*!< Indication currently playing on the channel */
197 int hold_state; /*!< Current Hold/Unhold state */
198
199 unsigned short transfercapability; /*!< ISDN Transfer Capability - AST_FLAG_DIGITAL is not enough */
200
201 struct ast_bridge *bridge; /*!< Bridge this channel is participating in */
202 struct ast_bridge_channel *bridge_channel;/*!< The bridge_channel this channel is linked with. */
203 struct ast_timer *timer; /*!< timer object that provided timingfd */
204
205 char context[AST_MAX_CONTEXT]; /*!< Dialplan: Current extension context */
206 char exten[AST_MAX_EXTENSION]; /*!< Dialplan: Current extension number */
207 char lastcontext[AST_MAX_CONTEXT]; /*!< Dialplan: Previous extension context */
208 char lastexten[AST_MAX_EXTENSION]; /*!< Dialplan: Previous extension number */
209 char unbridged; /*!< non-zero if the bridge core needs to re-evaluate the current
210 bridging technology which is in use by this channel's bridge. */
211 char is_t38_active; /*!< non-zero if T.38 is active on this channel. */
212 char dtmf_digit_to_emulate; /*!< Digit being emulated */
213 char sending_dtmf_digit; /*!< Digit this channel is currently sending out. (zero if not sending) */
214 struct timeval sending_dtmf_tv; /*!< The time this channel started sending the current digit. (Invalid if sending_dtmf_digit is zero.) */
215 struct stasis_topic *topic; /*!< Topic for this channel */
216 struct stasis_forward *channel_forward; /*!< Subscription for event forwarding to all channel topic */
217 struct stasis_forward *endpoint_forward; /*!< Subscription for event forwarding to endpoint's topic */
218 struct ast_stream_topology *stream_topology; /*!< Stream topology */
219 void *stream_topology_change_source; /*!< Source that initiated a stream topology change */
220 struct ast_stream *default_streams[AST_MEDIA_TYPE_END]; /*!< Default streams indexed by media type */
221 struct ast_channel_snapshot *snapshot; /*!< The current up to date snapshot of the channel */
222 struct ast_flags snapshot_segment_flags; /*!< Flags regarding the segments of the snapshot */
223};
224
225/*! \brief The monotonically increasing integer counter for channel uniqueids */
226static int uniqueint;
227
228/* ACCESSORS */
229
230#define DEFINE_STRINGFIELD_SETTERS_FOR(field, assert_on_null) \
231void ast_channel_##field##_set(struct ast_channel *chan, const char *value) \
232{ \
233 if ((assert_on_null)) ast_assert(!ast_strlen_zero(value)); \
234 if (!strcmp(value, chan->field)) return; \
235 ast_string_field_set(chan, field, value); \
236} \
237 \
238void ast_channel_##field##_build_va(struct ast_channel *chan, const char *fmt, va_list ap) \
239{ \
240 ast_string_field_build_va(chan, field, fmt, ap); \
241} \
242void ast_channel_##field##_build(struct ast_channel *chan, const char *fmt, ...) \
243{ \
244 va_list ap; \
245 va_start(ap, fmt); \
246 ast_channel_##field##_build_va(chan, fmt, ap); \
247 va_end(ap); \
248}
249
250#define DEFINE_STRINGFIELD_SETTERS_AND_INVALIDATE_FOR(field, publish, assert_on_null, invalidate) \
251void ast_channel_##field##_set(struct ast_channel *chan, const char *value) \
252{ \
253 if ((assert_on_null)) ast_assert(!ast_strlen_zero(value)); \
254 if (!strcmp(value, chan->field)) return; \
255 ast_string_field_set(chan, field, value); \
256 ast_channel_snapshot_invalidate_segment(chan, invalidate); \
257 if (publish && ast_channel_internal_is_finalized(chan)) ast_channel_publish_snapshot(chan); \
258} \
259 \
260void ast_channel_##field##_build_va(struct ast_channel *chan, const char *fmt, va_list ap) \
261{ \
262 ast_string_field_build_va(chan, field, fmt, ap); \
263 ast_channel_snapshot_invalidate_segment(chan, invalidate); \
264 if (publish && ast_channel_internal_is_finalized(chan)) ast_channel_publish_snapshot(chan); \
265} \
266void ast_channel_##field##_build(struct ast_channel *chan, const char *fmt, ...) \
267{ \
268 va_list ap; \
269 va_start(ap, fmt); \
270 ast_channel_##field##_build_va(chan, fmt, ap); \
271 va_end(ap); \
272}
273
277DEFINE_STRINGFIELD_SETTERS_FOR(latest_musicclass, 0);
285
286#define DEFINE_STRINGFIELD_GETTER_FOR(field) const char *ast_channel_##field(const struct ast_channel *chan) \
287{ \
288 return chan->field; \
289}
290
302
303const char *ast_channel_uniqueid(const struct ast_channel *chan)
304{
305 ast_assert(chan->uniqueid.unique_id[0] != '\0');
306 return chan->uniqueid.unique_id;
307}
308
309const char *ast_channel_linkedid(const struct ast_channel *chan)
310{
311 ast_assert(chan->linkedid.unique_id[0] != '\0');
312 return chan->linkedid.unique_id;
313}
314
315const char *ast_channel_appl(const struct ast_channel *chan)
316{
317 return chan->appl;
318}
319void ast_channel_appl_set(struct ast_channel *chan, const char *value)
320{
321 chan->appl = value;
323}
324const char *ast_channel_blockproc(const struct ast_channel *chan)
325{
326 return chan->blockproc;
327}
328void ast_channel_blockproc_set(struct ast_channel *chan, const char *value)
329{
330 chan->blockproc = value;
331}
332const char *ast_channel_data(const struct ast_channel *chan)
333{
334 return chan->data;
335}
336void ast_channel_data_set(struct ast_channel *chan, const char *value)
337{
338 chan->data = value;
340}
341
342const char *ast_channel_context(const struct ast_channel *chan)
343{
344 return chan->context;
345}
346const char *ast_channel_lastcontext(const struct ast_channel *chan)
347{
348 return chan->lastcontext;
349}
350void ast_channel_context_set(struct ast_channel *chan, const char *value)
351{
352 if (!*chan->lastcontext || strcmp(value, chan->context)) {
353 /* only copy to last context when it changes, unless it's empty to begin with */
354 ast_copy_string(chan->lastcontext, chan->context, sizeof(chan->lastcontext));
355 }
356 ast_copy_string(chan->context, value, sizeof(chan->context));
358}
359const char *ast_channel_exten(const struct ast_channel *chan)
360{
361 return chan->exten;
362}
363const char *ast_channel_lastexten(const struct ast_channel *chan)
364{
365 return chan->lastexten;
366}
367void ast_channel_exten_set(struct ast_channel *chan, const char *value)
368{
369 if (!*chan->lastexten || strcmp(value, chan->exten)) {
370 /* only copy to last exten when it changes, unless it's empty to begin with */
371 ast_copy_string(chan->lastexten, chan->exten, sizeof(chan->lastexten));
372 }
373 ast_copy_string(chan->exten, value, sizeof(chan->exten));
375}
376
378{
379 return chan->dtmf_digit_to_emulate;
380}
382{
384}
385
387{
388 return chan->sending_dtmf_digit;
389}
391{
393}
394
395struct timeval ast_channel_sending_dtmf_tv(const struct ast_channel *chan)
396{
397 return chan->sending_dtmf_tv;
398}
399void ast_channel_sending_dtmf_tv_set(struct ast_channel *chan, struct timeval value)
400{
401 chan->sending_dtmf_tv = value;
402}
403
405{
406 return chan->amaflags;
407}
408
410{
411 if (chan->amaflags == value) {
412 return;
413 }
414 chan->amaflags = value;
416}
417int ast_channel_fdno(const struct ast_channel *chan)
418{
419 return chan->fdno;
420}
422{
423 chan->fdno = value;
424}
426{
427 return chan->hangupcause;
428}
430{
431 chan->hangupcause = value;
433}
434int ast_channel_priority(const struct ast_channel *chan)
435{
436 return chan->priority;
437}
439{
440 chan->priority = value;
442}
443int ast_channel_rings(const struct ast_channel *chan)
444{
445 return chan->rings;
446}
448{
449 chan->rings = value;
450}
451int ast_channel_streamid(const struct ast_channel *chan)
452{
453 return chan->streamid;
454}
456{
457 chan->streamid = value;
458}
459int ast_channel_timingfd(const struct ast_channel *chan)
460{
461 return chan->timingfd;
462}
464{
465 chan->timingfd = value;
466}
468{
469 return chan->visible_indication;
470}
472{
474}
475int ast_channel_hold_state(const struct ast_channel *chan)
476{
477 return chan->hold_state;
478}
480{
481 chan->hold_state = value;
482}
483int ast_channel_vstreamid(const struct ast_channel *chan)
484{
485 return chan->vstreamid;
486}
488{
489 chan->vstreamid = value;
490}
491unsigned short ast_channel_transfercapability(const struct ast_channel *chan)
492{
493 return chan->transfercapability;
494}
495void ast_channel_transfercapability_set(struct ast_channel *chan, unsigned short value)
496{
498}
499unsigned int ast_channel_emulate_dtmf_duration(const struct ast_channel *chan)
500{
501 return chan->emulate_dtmf_duration;
502}
504{
506}
507unsigned int ast_channel_fin(const struct ast_channel *chan)
508{
509 return chan->fin;
510}
511void ast_channel_fin_set(struct ast_channel *chan, unsigned int value)
512{
513 chan->fin = value;
514}
515unsigned int ast_channel_fout(const struct ast_channel *chan)
516{
517 return chan->fout;
518}
519void ast_channel_fout_set(struct ast_channel *chan, unsigned int value)
520{
521 chan->fout = value;
522}
523unsigned long ast_channel_insmpl(const struct ast_channel *chan)
524{
525 return chan->insmpl;
526}
527void ast_channel_insmpl_set(struct ast_channel *chan, unsigned long value)
528{
529 chan->insmpl = value;
530}
531unsigned long ast_channel_outsmpl(const struct ast_channel *chan)
532{
533 return chan->outsmpl;
534}
535void ast_channel_outsmpl_set(struct ast_channel *chan, unsigned long value)
536{
537 chan->outsmpl = value;
538}
539void *ast_channel_generatordata(const struct ast_channel *chan)
540{
541 return chan->generatordata;
542}
544{
545 chan->generatordata = value;
546}
547void *ast_channel_music_state(const struct ast_channel *chan)
548{
549 return chan->music_state;
550}
552{
553 chan->music_state = value;
554}
555void *ast_channel_tech_pvt(const struct ast_channel *chan)
556{
557 return chan->tech_pvt;
558}
560{
561 chan->tech_pvt = value;
562 if (value != NULL) {
564 }
565}
566void *ast_channel_timingdata(const struct ast_channel *chan)
567{
568 return chan->timingdata;
569}
571{
572 chan->timingdata = value;
573}
575{
576 return chan->audiohooks;
577}
579{
580 chan->audiohooks = value;
581}
582struct ast_cdr *ast_channel_cdr(const struct ast_channel *chan)
583{
584 return chan->cdr;
585}
586void ast_channel_cdr_set(struct ast_channel *chan, struct ast_cdr *value)
587{
588 chan->cdr = value;
589}
590struct ast_channel *ast_channel_masq(const struct ast_channel *chan)
591{
592 return chan->masq;
593}
595{
596 chan->masq = value;
597}
598struct ast_channel *ast_channel_masqr(const struct ast_channel *chan)
599{
600 return chan->masqr;
601}
603{
604 chan->masqr = value;
605}
607{
608 return chan->stream;
609}
611{
612 chan->stream = value;
613}
615{
616 return chan->vstream;
617}
619{
620 chan->vstream = value;
621}
623{
624 return chan->nativeformats;
625}
626
628{
629 enum ast_media_type type;
630
631 ast_assert(chan != NULL);
632
634 if (chan->stream_topology) {
635 chan->default_streams[type] =
637 } else {
638 chan->default_streams[type] = NULL;
639 }
640 }
641}
642
644 struct ast_stream_topology *topology)
645{
647 chan->stream_topology = topology;
649}
650
652 struct ast_channel *chan, void *change_source)
653{
654 chan->stream_topology_change_source = change_source;
655}
656
658{
660}
661
663 struct ast_format_cap *value)
664{
665 SCOPE_ENTER(2, "%s: %sFormats: %s\n", S_OR(ast_channel_name(chan), "<initializing>"),
666 S_COR(ast_channel_is_multistream(chan), "Multistream", ""),
668
669 ast_assert(chan != NULL);
670
672
673 /* If chan->stream_topology is NULL, the channel is being destroyed
674 * and topology is destroyed.
675 */
676 if (!chan->stream_topology) {
677 SCOPE_EXIT_RTN("Channel is being initialized or destroyed\n");
678 }
679
680 if (!ast_channel_is_multistream(chan) || !value) {
681 struct ast_stream_topology *new_topology;
682
685 SCOPE_EXIT_RTN("New %stopology set\n", value ? "" : "empty ");
686 }
687 SCOPE_EXIT_RTN("Set native formats but not topology\n");
688}
689
691{
692 return chan->framehooks;
693}
695{
696 chan->framehooks = value;
697}
699{
700 return chan->generator;
701}
703{
704 chan->generator = value;
705}
706struct ast_pbx *ast_channel_pbx(const struct ast_channel *chan)
707{
708 return chan->pbx;
709}
710void ast_channel_pbx_set(struct ast_channel *chan, struct ast_pbx *value)
711{
712 chan->pbx = value;
713}
715{
716 return chan->sched;
717}
719{
720 chan->sched = value;
721}
722struct ast_timer *ast_channel_timer(const struct ast_channel *chan)
723{
724 return chan->timer;
725}
727{
728 chan->timer = value;
729}
730struct ast_tone_zone *ast_channel_zone(const struct ast_channel *chan)
731{
732 return chan->zone;
733}
735{
736 chan->zone = value;
737}
739{
740 return chan->readtrans;
741}
743{
744 chan->readtrans = value;
745}
747{
748 return chan->writetrans;
749}
751{
752 chan->writetrans = value;
753}
754const struct ast_channel_tech *ast_channel_tech(const struct ast_channel *chan)
755{
756 return chan->tech;
757}
759{
760 if (value->read_stream || value->write_stream) {
761 ast_assert(value->read_stream && value->write_stream);
762 }
763
764 chan->tech = value;
765}
767{
768 return chan->adsicpe;
769}
771{
772 chan->adsicpe = value;
773}
775{
776 return chan->state;
777}
779{
780 return chan->callid;
781}
783{
784 char call_identifier_from[AST_CALLID_BUFFER_LENGTH];
785 char call_identifier_to[AST_CALLID_BUFFER_LENGTH];
786 call_identifier_from[0] = '\0';
787 ast_callid_strnprint(call_identifier_to, sizeof(call_identifier_to), callid);
788 if (chan->callid) {
789 ast_callid_strnprint(call_identifier_from, sizeof(call_identifier_from), chan->callid);
790 ast_debug(3, "Channel Call ID changing from %s to %s\n", call_identifier_from, call_identifier_to);
791 }
792
793 chan->callid = callid;
794
795 ast_test_suite_event_notify("CallIDChange",
796 "State: CallIDChange\r\n"
797 "Channel: %s\r\n"
798 "CallID: %s\r\n"
799 "PriorCallID: %s",
800 ast_channel_name(chan),
801 call_identifier_to,
802 call_identifier_from);
803}
804
806{
807 chan->state = value;
808}
809void ast_channel_set_oldwriteformat(struct ast_channel *chan, struct ast_format *format)
810{
811 ao2_replace(chan->oldwriteformat, format);
812}
813void ast_channel_set_rawreadformat(struct ast_channel *chan, struct ast_format *format)
814{
815 ao2_replace(chan->rawreadformat, format);
816}
817void ast_channel_set_rawwriteformat(struct ast_channel *chan, struct ast_format *format)
818{
819 ao2_replace(chan->rawwriteformat, format);
820}
821void ast_channel_set_readformat(struct ast_channel *chan, struct ast_format *format)
822{
823 ao2_replace(chan->readformat, format);
824}
825void ast_channel_set_writeformat(struct ast_channel *chan, struct ast_format *format)
826{
827 ao2_replace(chan->writeformat, format);
828}
830{
831 return chan->oldwriteformat;
832}
834{
835 return chan->rawreadformat;
836}
838{
839 return chan->rawwriteformat;
840}
842{
843 return chan->readformat;
844}
846{
847 return chan->writeformat;
848}
850{
851 return &chan->hangup_handlers;
852}
854{
855 return &chan->datastores;
856}
858{
859 return &chan->autochans;
860}
862{
863 return &chan->readq;
864}
866{
867 return &chan->dtmff;
868}
869struct ast_jb *ast_channel_jb(struct ast_channel *chan)
870{
871 return &chan->jb;
872}
874{
875 return &chan->caller;
876}
878{
879 return &chan->connected;
880}
882{
883 return &chan->connected_indicated;
884}
886{
887 return ast_party_id_merge(&chan->connected.id, &chan->connected.priv);
888}
890{
891 return &chan->dialed;
892}
894{
895 return &chan->redirecting;
896}
898{
899 return ast_party_id_merge(&chan->redirecting.orig, &chan->redirecting.priv_orig);
900}
902{
903 return ast_party_id_merge(&chan->redirecting.from, &chan->redirecting.priv_from);
904}
906{
907 return ast_party_id_merge(&chan->redirecting.to, &chan->redirecting.priv_to);
908}
909struct timeval *ast_channel_dtmf_tv(struct ast_channel *chan)
910{
911 return &chan->dtmf_tv;
912}
913struct timeval *ast_channel_whentohangup(struct ast_channel *chan)
914{
915 return &chan->whentohangup;
916}
918{
919 return &chan->varshead;
920}
922{
923 chan->dtmff = *value;
924}
925void ast_channel_jb_set(struct ast_channel *chan, struct ast_jb *value)
926{
927 chan->jb = *value;
928}
930{
931 chan->caller = *value;
933}
935{
936 chan->connected = *value;
938}
940{
941 chan->dialed = *value;
943}
945{
946 chan->redirecting = *value;
948}
949void ast_channel_dtmf_tv_set(struct ast_channel *chan, struct timeval *value)
950{
951 chan->dtmf_tv = *value;
952}
953void ast_channel_whentohangup_set(struct ast_channel *chan, struct timeval *value)
954{
955 chan->whentohangup = *value;
956}
958{
959 chan->varshead = *value;
960}
961struct timeval ast_channel_creationtime(struct ast_channel *chan)
962{
963 return chan->creationtime;
964}
965void ast_channel_creationtime_set(struct ast_channel *chan, struct timeval *value)
966{
967 chan->creationtime = *value;
969}
970
971struct timeval ast_channel_answertime(struct ast_channel *chan)
972{
973 return chan->answertime;
974}
975
976void ast_channel_answertime_set(struct ast_channel *chan, struct timeval *value)
977{
978 chan->answertime = *value;
979}
980
981/* Evil softhangup accessors */
983{
984 return chan->softhangup;
985}
987{
988 chan->softhangup = value;
989}
991{
992 chan->softhangup |= value;
993}
995{
996 chan ->softhangup &= ~value;
997}
998
1000{
1001 return chan->unbridged;
1002}
1003
1005{
1006 int res;
1007 ast_channel_lock(chan);
1008 res = ast_channel_unbridged_nolock(chan);
1009 ast_channel_unlock(chan);
1010 return res;
1011}
1012
1014{
1015 chan->unbridged = !!value;
1017}
1018
1020{
1021 ast_channel_lock(chan);
1023 ast_channel_unlock(chan);
1024}
1025
1027{
1028 return chan->is_t38_active;
1029}
1030
1032{
1033 int res;
1034
1035 ast_channel_lock(chan);
1037 ast_channel_unlock(chan);
1038 return res;
1039}
1040
1041void ast_channel_set_is_t38_active_nolock(struct ast_channel *chan, int is_t38_active)
1042{
1043 chan->is_t38_active = !!is_t38_active;
1044}
1045
1046void ast_channel_set_is_t38_active(struct ast_channel *chan, int is_t38_active)
1047{
1048 ast_channel_lock(chan);
1049 ast_channel_set_is_t38_active_nolock(chan, is_t38_active);
1050 ast_channel_unlock(chan);
1051}
1052
1054{
1055 chan->callid = 0;
1056}
1057
1058/* Typedef accessors */
1060{
1061 return chan->callgroup;
1062}
1064{
1065 chan->callgroup = value;
1066}
1068{
1069 return chan->pickupgroup;
1070}
1072{
1073 chan->pickupgroup = value;
1074}
1075struct ast_namedgroups *ast_channel_named_callgroups(const struct ast_channel *chan)
1076{
1077 return chan->named_callgroups;
1078}
1079void ast_channel_named_callgroups_set(struct ast_channel *chan, struct ast_namedgroups *value)
1080{
1083}
1084struct ast_namedgroups *ast_channel_named_pickupgroups(const struct ast_channel *chan)
1085{
1086 return chan->named_pickupgroups;
1087}
1088void ast_channel_named_pickupgroups_set(struct ast_channel *chan, struct ast_namedgroups *value)
1089{
1092}
1093
1094/* Alertpipe functions */
1096{
1097 return ast_alertpipe_write(chan->alertpipe);
1098}
1099
1101{
1102 return ast_alertpipe_flush(chan->alertpipe);
1103}
1104
1106{
1107 return ast_alertpipe_read(chan->alertpipe);
1108}
1109
1111{
1112 return ast_alertpipe_writable(chan->alertpipe);
1113}
1114
1116{
1117 return ast_alertpipe_readable(chan->alertpipe);
1118}
1119
1121{
1123}
1124
1126{
1128}
1129
1131{
1132 return ast_alertpipe_init(chan->alertpipe);
1133}
1134
1136{
1137 return ast_alertpipe_readfd(chan->alertpipe);
1138}
1139
1141{
1142 ast_alertpipe_swap(chan1->alertpipe, chan2->alertpipe);
1143}
1144
1145/* file descriptor array accessors */
1146void ast_channel_internal_fd_set(struct ast_channel *chan, int which, int value)
1147{
1148 int pos;
1149
1150 /* This ensures that if the vector has to grow with unused positions they will be
1151 * initialized to -1.
1152 */
1153 for (pos = AST_VECTOR_SIZE(&chan->fds); pos < which; pos++) {
1154 AST_VECTOR_REPLACE(&chan->fds, pos, -1);
1155 }
1156
1157 AST_VECTOR_REPLACE(&chan->fds, which, value);
1158}
1159void ast_channel_internal_fd_clear(struct ast_channel *chan, int which)
1160{
1161 if (which >= AST_VECTOR_SIZE(&chan->fds)) {
1162 return;
1163 }
1164
1165 AST_VECTOR_REPLACE(&chan->fds, which, -1);
1166}
1168{
1170}
1171int ast_channel_fd(const struct ast_channel *chan, int which)
1172{
1173 return (which >= AST_VECTOR_SIZE(&chan->fds)) ? -1 : AST_VECTOR_GET(&chan->fds, which);
1174}
1175int ast_channel_fd_isset(const struct ast_channel *chan, int which)
1176{
1177 return ast_channel_fd(chan, which) > -1;
1178}
1179
1180int ast_channel_fd_count(const struct ast_channel *chan)
1181{
1182 return AST_VECTOR_SIZE(&chan->fds);
1183}
1184
1186{
1187 int pos = AST_EXTENDED_FDS;
1188
1189 while (ast_channel_fd_isset(chan, pos)) {
1190 pos += 1;
1191 }
1192
1193 AST_VECTOR_REPLACE(&chan->fds, pos, value);
1194
1195 return pos;
1196}
1197
1198pthread_t ast_channel_blocker(const struct ast_channel *chan)
1199{
1200 return chan->blocker;
1201}
1202void ast_channel_blocker_set(struct ast_channel *chan, pthread_t value)
1203{
1204 chan->blocker = value;
1205}
1206
1208{
1209 return chan->blocker_tid;
1210}
1212{
1213 chan->blocker_tid = value;
1214}
1215
1217{
1218 return chan->timingfunc;
1219}
1221{
1222 chan->timingfunc = value;
1223}
1224
1226{
1227 return chan->bridge;
1228}
1230{
1231 chan->bridge = value;
1234}
1235
1237{
1238 return chan->bridge_channel;
1239}
1241{
1243}
1244
1246{
1247 return &chan->flags;
1248}
1249
1250static int collect_names_cb(void *obj, void *arg, int flags)
1251{
1252 struct ast_control_pvt_cause_code *cause_code = obj;
1253 struct ast_str **str = arg;
1254
1255 ast_str_append(str, 0, "%s%s", (ast_str_strlen(*str) ? "," : ""), cause_code->chan_name);
1256
1257 return 0;
1258}
1259
1261{
1262 struct ast_str *chanlist = ast_str_create(128);
1263
1264 if (!chanlist) {
1265 return NULL;
1266 }
1267
1269
1270 return chanlist;
1271}
1272
1274{
1275 return ao2_find(chan->dialed_causes, chan_name, OBJ_KEY);
1276}
1277
1278int ast_channel_dialed_causes_add(const struct ast_channel *chan, const struct ast_control_pvt_cause_code *cause_code, int datalen)
1279{
1280 struct ast_control_pvt_cause_code *ao2_cause_code;
1282 ao2_cause_code = ao2_alloc(datalen, NULL);
1283
1284 if (ao2_cause_code) {
1285 memcpy(ao2_cause_code, cause_code, datalen);
1286 ao2_link(chan->dialed_causes, ao2_cause_code);
1287 ao2_ref(ao2_cause_code, -1);
1288 return 0;
1289 } else {
1290 return -1;
1291 }
1292}
1293
1295{
1297}
1298
1299/*! \brief Hash function for pvt cause code frames */
1300static int pvt_cause_hash_fn(const void *vpc, const int flags)
1301{
1302 const struct ast_control_pvt_cause_code *pc = vpc;
1304}
1305
1306/*! \brief Comparison function for pvt cause code frames */
1307static int pvt_cause_cmp_fn(void *obj, void *vstr, int flags)
1308{
1309 struct ast_control_pvt_cause_code *pc = obj;
1310 char *str = ast_tech_to_upper(ast_strdupa(vstr));
1311 char *pc_str = ast_tech_to_upper(ast_strdupa(pc->chan_name));
1312 return !strcmp(pc_str, str) ? CMP_MATCH | CMP_STOP : 0;
1313}
1314
1315#define DIALED_CAUSES_BUCKETS 37
1316
1317struct ast_channel *__ast_channel_internal_alloc(void (*destructor)(void *obj), const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *file, int line, const char *function)
1318{
1319 struct ast_channel *tmp;
1320
1321 tmp = __ao2_alloc(sizeof(*tmp), destructor,
1322 AO2_ALLOC_OPT_LOCK_MUTEX, "", file, line, function);
1323
1324 if (!tmp) {
1325 return NULL;
1326 }
1327
1328 if ((ast_string_field_init(tmp, 128))) {
1329 return ast_channel_unref(tmp);
1330 }
1331
1334 if (!tmp->dialed_causes) {
1335 return ast_channel_unref(tmp);
1336 }
1337
1338 /* set the creation time in the uniqueid */
1339 tmp->uniqueid.creation_time = time(NULL);
1340 tmp->uniqueid.creation_unique = ast_atomic_fetchadd_int(&uniqueint, 1);
1341
1342 /* use provided id or default to historical {system-}time.# format */
1343 if (assignedids && !ast_strlen_zero(assignedids->uniqueid)) {
1344 ast_copy_string(tmp->uniqueid.unique_id, assignedids->uniqueid, sizeof(tmp->uniqueid.unique_id));
1346 snprintf(tmp->uniqueid.unique_id, sizeof(tmp->uniqueid.unique_id), "%li.%d",
1347 (long)(tmp->uniqueid.creation_time),
1348 tmp->uniqueid.creation_unique);
1349 } else {
1350 snprintf(tmp->uniqueid.unique_id, sizeof(tmp->uniqueid.unique_id), "%s-%li.%d",
1352 (long)(tmp->uniqueid.creation_time),
1353 tmp->uniqueid.creation_unique);
1354 }
1355
1356 /* copy linked id from parent channel if known */
1357 if (requestor) {
1358 tmp->linkedid = requestor->linkedid;
1359 } else {
1360 tmp->linkedid = tmp->uniqueid;
1361 }
1362
1364
1365 /* Force all channel snapshot segments to be created on first use, so we don't have to check if
1366 * an old snapshot exists.
1367 */
1368 ast_set_flag(&tmp->snapshot_segment_flags, AST_FLAGS_ALL);
1369
1370 return tmp;
1371}
1372
1374{
1375 ast_assert(a->linkedid.creation_time != 0);
1376 ast_assert(b->linkedid.creation_time != 0);
1377
1378 if (a->linkedid.creation_time < b->linkedid.creation_time) {
1379 return a;
1380 }
1381 if (b->linkedid.creation_time < a->linkedid.creation_time) {
1382 return b;
1383 }
1384 if (a->linkedid.creation_unique < b->linkedid.creation_unique) {
1385 return a;
1386 }
1387 return b;
1388}
1389
1391{
1392 if (dest->linkedid.creation_time == source->linkedid.creation_time
1394 && !strcmp(dest->linkedid.unique_id, source->linkedid.unique_id)) {
1395 return;
1396 }
1397 dest->linkedid = source->linkedid;
1400}
1401
1403{
1404 struct ast_channel_id temp;
1405
1406 /* This operation is used as part of masquerading and so does not invalidate the peer
1407 * segment. This is due to the masquerade process invalidating all segments.
1408 */
1409
1410 temp = a->uniqueid;
1411 a->uniqueid = b->uniqueid;
1412 b->uniqueid = temp;
1413
1414 temp = a->linkedid;
1415 a->linkedid = b->linkedid;
1416 b->linkedid = temp;
1417}
1418
1420{
1421 struct stasis_topic *topic;
1422 struct stasis_forward *forward;
1423
1424 topic = a->topic;
1425 a->topic = b->topic;
1426 b->topic = topic;
1427
1428 forward = a->channel_forward;
1429 a->channel_forward = b->channel_forward;
1430 b->channel_forward = forward;
1431}
1432
1434{
1435 struct stasis_forward *temp;
1436
1437 temp = a->endpoint_forward;
1438 a->endpoint_forward = b->endpoint_forward;
1439 b->endpoint_forward = temp;
1440}
1441
1443{
1444 struct ast_channel_snapshot *snapshot;
1445
1446 snapshot = a->snapshot;
1447 a->snapshot = b->snapshot;
1448 b->snapshot = snapshot;
1449}
1450
1451void ast_channel_internal_set_fake_ids(struct ast_channel *chan, const char *uniqueid, const char *linkedid)
1452{
1453 ast_copy_string(chan->uniqueid.unique_id, uniqueid, sizeof(chan->uniqueid.unique_id));
1454 ast_copy_string(chan->linkedid.unique_id, linkedid, sizeof(chan->linkedid.unique_id));
1455}
1456
1458{
1459 if (chan->dialed_causes) {
1460 ao2_t_ref(chan->dialed_causes, -1,
1461 "done with dialed causes since the channel is going away");
1462 chan->dialed_causes = NULL;
1463 }
1464
1466
1469
1470 ao2_cleanup(chan->topic);
1471 chan->topic = NULL;
1472
1474
1475 AST_VECTOR_FREE(&chan->fds);
1476}
1477
1479{
1480 chan->finalized = 1;
1481}
1482
1484{
1485 return chan->finalized;
1486}
1487
1489{
1490 if (!chan) {
1491 return ast_channel_topic_all();
1492 }
1493
1494 return chan->topic;
1495}
1496
1498 struct ast_endpoint *endpoint)
1499{
1500 ast_assert(chan != NULL);
1501 ast_assert(endpoint != NULL);
1502
1503 chan->endpoint_forward =
1505 ast_endpoint_topic(endpoint));
1506 if (!chan->endpoint_forward) {
1507 return -1;
1508 }
1509
1510 return 0;
1511}
1512
1514{
1515 char *topic_name;
1516 int ret;
1517 ast_assert(chan->topic == NULL);
1518
1519 if (ast_strlen_zero(chan->uniqueid.unique_id)) {
1520 static int dummy_id;
1521 ret = ast_asprintf(&topic_name, "channel:dummy-%d", ast_atomic_fetchadd_int(&dummy_id, +1));
1522 } else {
1523 ret = ast_asprintf(&topic_name, "channel:%s", chan->uniqueid.unique_id);
1524 }
1525
1526 if (ret < 0) {
1527 return -1;
1528 }
1529
1530 chan->topic = stasis_topic_create(topic_name);
1531 ast_free(topic_name);
1532 if (!chan->topic) {
1533 return -1;
1534 }
1535
1538 if (!chan->channel_forward) {
1539 ao2_ref(chan->topic, -1);
1540 chan->topic = NULL;
1541 return -1;
1542 }
1543
1544 return 0;
1545}
1546
1548
1550{
1551 enum ast_channel_error *error_code = ast_threadstorage_get(&channel_errno, sizeof(*error_code));
1552 if (!error_code) {
1553 return;
1554 }
1555
1556 *error_code = error;
1557}
1558
1560{
1561 enum ast_channel_error *error_code = ast_threadstorage_get(&channel_errno, sizeof(*error_code));
1562 if (!error_code) {
1564 }
1565
1566 return *error_code;
1567}
1568
1570 const struct ast_channel *chan)
1571{
1572 ast_assert(chan != NULL);
1573
1574 return chan->stream_topology;
1575}
1576
1578 struct ast_stream_topology *topology)
1579{
1580 struct ast_stream_topology *new_topology;
1581 SCOPE_ENTER(1, "%s: %s\n", ast_channel_name(chan),
1582 ast_str_tmp(256, ast_stream_topology_to_str(topology, &STR_TMP)));
1583
1584 ast_assert(chan != NULL);
1585
1586 /* A non-MULTISTREAM channel can't manipulate topology directly */
1588
1589 /* Unless the channel is being destroyed, we always want a topology on
1590 * it even if its empty.
1591 */
1592 if (!topology) {
1593 new_topology = ast_stream_topology_alloc();
1594 } else {
1595 new_topology = topology;
1596 }
1597
1598 if (new_topology) {
1599 ast_channel_internal_set_stream_topology(chan, new_topology);
1600 }
1601
1602 SCOPE_EXIT_RTN_VALUE(new_topology, "Used %s topology\n", topology ? "provided" : "empty");
1603}
1604
1606 enum ast_media_type type)
1607{
1608 ast_assert(chan != NULL);
1610
1611 return chan->default_streams[type];
1612}
1613
1615 struct ast_channel *chan2)
1616{
1617 struct ast_stream_topology *tmp_topology;
1618
1619 ast_assert(chan1 != NULL && chan2 != NULL);
1620
1621 tmp_topology = chan1->stream_topology;
1622 chan1->stream_topology = chan2->stream_topology;
1623 chan2->stream_topology = tmp_topology;
1624
1627}
1628
1630{
1631 return (chan && chan->tech && chan->tech->read_stream && chan->tech->write_stream);
1632}
1633
1635{
1636 return chan->snapshot;
1637}
1638
1640{
1641 ao2_cleanup(chan->snapshot);
1642 chan->snapshot = ao2_bump(snapshot);
1643}
1644
1646{
1647 return &chan->snapshot_segment_flags;
1648}
void ast_alertpipe_close(int alert_pipe[2])
Close an alert pipe.
Definition: alertpipe.c:79
ssize_t ast_alertpipe_write(int alert_pipe[2])
Write an event to an alert pipe.
Definition: alertpipe.c:120
void ast_alertpipe_swap(int alert_pipe_1[2], int alert_pipe_2[2])
Swap the file descriptors from two alert pipes.
Definition: alertpipe.h:161
void ast_alertpipe_clear(int alert_pipe[2])
Sets the alert pipe file descriptors to default values.
Definition: alertpipe.h:98
ast_alert_status_t ast_alertpipe_flush(int alert_pipe[2])
Consume all alerts written to the alert pipe.
Definition: alertpipe.c:134
int ast_alertpipe_readable(int alert_pipe[2])
Determine if the alert pipe is readable.
Definition: alertpipe.h:114
int ast_alertpipe_readfd(int alert_pipe[2])
Get the alert pipe's read file descriptor.
Definition: alertpipe.h:146
int ast_alertpipe_init(int alert_pipe[2])
Initialize an alert pipe.
Definition: alertpipe.c:38
ast_alert_status_t
Definition: alertpipe.h:24
int ast_alertpipe_writable(int alert_pipe[2])
Determine if the alert pipe is writable.
Definition: alertpipe.h:130
ast_alert_status_t ast_alertpipe_read(int alert_pipe[2])
Read an event from an alert pipe.
Definition: alertpipe.c:102
const char * str
Definition: app_jack.c:147
static char dialcontext[AST_MAX_CONTEXT]
Asterisk main include file. File version handling, generic pbx functions.
#define ast_free(a)
Definition: astmm.h:180
#define ast_strdupa(s)
duplicate a string in memory from the stack
Definition: astmm.h:298
#define ast_asprintf(ret, fmt,...)
A wrapper for asprintf()
Definition: astmm.h:267
#define ao2_t_ref(o, delta, tag)
Definition: astobj2.h:460
#define ao2_link(container, obj)
Add an object to a container.
Definition: astobj2.h:1532
@ CMP_MATCH
Definition: astobj2.h:1027
@ CMP_STOP
Definition: astobj2.h:1028
#define OBJ_KEY
Definition: astobj2.h:1151
@ AO2_ALLOC_OPT_LOCK_MUTEX
Definition: astobj2.h:363
#define ao2_callback(c, flags, cb_fn, arg)
ao2_callback() is a generic function that applies cb_fn() to all objects in a container,...
Definition: astobj2.h:1693
#define ao2_cleanup(obj)
Definition: astobj2.h:1934
#define ao2_find(container, arg, flags)
Definition: astobj2.h:1736
#define ao2_replace(dst, src)
Replace one object reference with another cleaning up the original.
Definition: astobj2.h:501
#define ao2_ref(o, delta)
Reference/unreference an object and return the old refcount.
Definition: astobj2.h:459
#define ao2_bump(obj)
Bump refcount on an AO2 object by one, returning the object.
Definition: astobj2.h:480
@ OBJ_NODATA
Definition: astobj2.h:1044
@ OBJ_MULTIPLE
Definition: astobj2.h:1049
@ OBJ_UNLINK
Definition: astobj2.h:1039
#define ao2_alloc(data_size, destructor_fn)
Definition: astobj2.h:409
void * __ao2_alloc(size_t data_size, ao2_destructor_fn destructor_fn, unsigned int options, const char *tag, const char *file, int line, const char *func) attribute_warn_unused_result
Definition: astobj2.c:768
#define ao2_container_alloc_hash(ao2_options, container_options, n_buckets, hash_fn, sort_fn, cmp_fn)
Allocate and initialize a hash container with the desired number of buckets.
Definition: astobj2.h:1303
static int tmp()
Definition: bt_open.c:389
static char language[MAX_LANGUAGE]
Definition: chan_iax2.c:327
static char accountcode[AST_MAX_ACCOUNT_CODE]
Definition: chan_iax2.c:476
static const char type[]
Definition: chan_ooh323.c:109
General Asterisk PBX channel definitions.
const char * ast_channel_name(const struct ast_channel *chan)
int(* ast_timing_func_t)(const void *data)
Definition: channel.h:899
#define AST_EXTENDED_FDS
Definition: channel.h:195
#define ast_channel_lock(chan)
Definition: channel.h:2922
struct ast_namedgroups * ast_ref_namedgroups(struct ast_namedgroups *groups)
Definition: channel.c:7737
unsigned long long ast_group_t
Definition: channel.h:213
ast_channel_error
Definition: channel.h:4793
@ AST_CHANNEL_ERROR_UNKNOWN
Definition: channel.h:4795
int ast_queue_frame(struct ast_channel *chan, struct ast_frame *f)
Queue one or more frames to a channel's frame queue.
Definition: channel.c:1139
ama_flags
Channel AMA Flags.
Definition: channel.h:1177
ast_channel_adsicpe
Definition: channel.h:868
#define AST_MAX_FDS
Definition: channel.h:194
#define ast_channel_unref(c)
Decrease channel reference count.
Definition: channel.h:2958
struct ast_party_id ast_party_id_merge(struct ast_party_id *base, struct ast_party_id *overlay)
Merge a given party id into another given party id.
Definition: channel.c:1902
#define AST_MAX_UNIQUEID
Definition: channel.h:168
#define AST_MAX_CONTEXT
Definition: channel.h:135
struct ast_namedgroups * ast_unref_namedgroups(struct ast_namedgroups *groups)
Definition: channel.c:7731
#define ast_channel_unlock(chan)
Definition: channel.h:2923
#define AST_MAX_EXTENSION
Definition: channel.h:134
Internal channel functions for channel.c to use.
void ast_channel_internal_set_stream_topology_change_source(struct ast_channel *chan, void *change_source)
void ast_channel_internal_alertpipe_swap(struct ast_channel *chan1, struct ast_channel *chan2)
Swap the interal alertpipe between two channels.
void ast_channel_exten_set(struct ast_channel *chan, const char *value)
static struct ast_threadstorage channel_errno
const char * ast_channel_linkedid(const struct ast_channel *chan)
struct ast_bridge * ast_channel_internal_bridge(const struct ast_channel *chan)
void * ast_channel_get_stream_topology_change_source(struct ast_channel *chan)
Retrieve the source that initiated the last stream topology change.
struct timeval ast_channel_answertime(struct ast_channel *chan)
static void channel_set_default_streams(struct ast_channel *chan)
void ast_channel_rings_set(struct ast_channel *chan, int value)
void ast_channel_internal_copy_linkedid(struct ast_channel *dest, struct ast_channel *source)
Copy the full linkedid channel id structure from one channel to another.
void ast_channel_named_pickupgroups_set(struct ast_channel *chan, struct ast_namedgroups *value)
struct ast_channel * ast_channel_masq(const struct ast_channel *chan)
int ast_channel_blocker_tid(const struct ast_channel *chan)
void ast_channel_stream_set(struct ast_channel *chan, struct ast_filestream *value)
void ast_channel_appl_set(struct ast_channel *chan, const char *value)
void ast_channel_dtmff_set(struct ast_channel *chan, struct ast_frame *value)
void ast_channel_visible_indication_set(struct ast_channel *chan, int value)
const char * ast_channel_blockproc(const struct ast_channel *chan)
void ast_channel_caller_set(struct ast_channel *chan, struct ast_party_caller *value)
void ast_channel_internal_set_stream_topology(struct ast_channel *chan, struct ast_stream_topology *topology)
struct ast_stream_topology * ast_channel_set_stream_topology(struct ast_channel *chan, struct ast_stream_topology *topology)
Set the topology of streams on a channel.
void ast_channel_set_unbridged_nolock(struct ast_channel *chan, int value)
Variant of ast_channel_set_unbridged. Use this if the channel is already locked prior to calling.
struct ast_namedgroups * ast_channel_named_pickupgroups(const struct ast_channel *chan)
void * ast_channel_tech_pvt(const struct ast_channel *chan)
void ast_channel_internal_set_fake_ids(struct ast_channel *chan, const char *uniqueid, const char *linkedid)
Set uniqueid and linkedid string value only (not time)
const char * ast_channel_data(const struct ast_channel *chan)
void ast_channel_dialed_set(struct ast_channel *chan, struct ast_party_dialed *value)
struct ast_party_id ast_channel_redirecting_effective_to(struct ast_channel *chan)
struct ast_control_pvt_cause_code * ast_channel_dialed_causes_find(const struct ast_channel *chan, const char *chan_name)
Retrieve a ref-counted cause code information structure.
struct ast_format * ast_channel_rawreadformat(struct ast_channel *chan)
struct ast_party_id ast_channel_redirecting_effective_from(struct ast_channel *chan)
void * ast_channel_music_state(const struct ast_channel *chan)
void ast_channel_blockproc_set(struct ast_channel *chan, const char *value)
unsigned int ast_channel_fin(const struct ast_channel *chan)
void ast_channel_callid_cleanup(struct ast_channel *chan)
void ast_channel_insmpl_set(struct ast_channel *chan, unsigned long value)
void ast_channel_set_oldwriteformat(struct ast_channel *chan, struct ast_format *format)
void ast_channel_softhangup_internal_flag_clear(struct ast_channel *chan, int value)
struct varshead * ast_channel_varshead(struct ast_channel *chan)
int ast_channel_rings(const struct ast_channel *chan)
void ast_channel_generator_set(struct ast_channel *chan, struct ast_generator *value)
void ast_channel_blocker_set(struct ast_channel *chan, pthread_t value)
void ast_channel_sending_dtmf_digit_set(struct ast_channel *chan, char value)
void * ast_channel_timingdata(const struct ast_channel *chan)
#define DEFINE_STRINGFIELD_GETTER_FOR(field)
int ast_channel_internal_alert_readfd(struct ast_channel *chan)
void ast_channel_dtmf_tv_set(struct ast_channel *chan, struct timeval *value)
int ast_channel_internal_is_finalized(struct ast_channel *chan)
struct ast_flags * ast_channel_snapshot_segment_flags(struct ast_channel *chan)
void ast_channel_internal_swap_endpoint_forward(struct ast_channel *a, struct ast_channel *b)
Swap endpoint_forward between two channels.
void ast_channel_nativeformats_set(struct ast_channel *chan, struct ast_format_cap *value)
int ast_channel_fdno(const struct ast_channel *chan)
void ast_channel_internal_fd_clear_all(struct ast_channel *chan)
void ast_channel_internal_bridge_channel_set(struct ast_channel *chan, struct ast_bridge_channel *value)
void ast_channel_internal_alertpipe_close(struct ast_channel *chan)
struct stasis_topic * ast_channel_topic(struct ast_channel *chan)
A topic which publishes the events for a particular channel.
void ast_channel_answertime_set(struct ast_channel *chan, struct timeval *value)
void ast_channel_hold_state_set(struct ast_channel *chan, int value)
struct ast_trans_pvt * ast_channel_readtrans(const struct ast_channel *chan)
const char * ast_channel_lastexten(const struct ast_channel *chan)
struct ast_format_cap * ast_channel_nativeformats(const struct ast_channel *chan)
void ast_channel_data_set(struct ast_channel *chan, const char *value)
void ast_channel_blocker_tid_set(struct ast_channel *chan, int value)
struct timeval ast_channel_sending_dtmf_tv(const struct ast_channel *chan)
void ast_channel_jb_set(struct ast_channel *chan, struct ast_jb *value)
struct ast_party_redirecting * ast_channel_redirecting(struct ast_channel *chan)
enum ast_channel_error ast_channel_internal_errno(void)
void ast_channel_snapshot_set(struct ast_channel *chan, struct ast_channel_snapshot *snapshot)
struct ast_trans_pvt * ast_channel_writetrans(const struct ast_channel *chan)
static int uniqueint
The monotonically increasing integer counter for channel uniqueids.
unsigned short ast_channel_transfercapability(const struct ast_channel *chan)
struct ast_namedgroups * ast_channel_named_callgroups(const struct ast_channel *chan)
ast_group_t ast_channel_pickupgroup(const struct ast_channel *chan)
void ast_channel_vstreamid_set(struct ast_channel *chan, int value)
#define DEFINE_STRINGFIELD_SETTERS_FOR(field, assert_on_null)
void ast_channel_internal_swap_stream_topology(struct ast_channel *chan1, struct ast_channel *chan2)
void ast_channel_timingdata_set(struct ast_channel *chan, void *value)
struct ast_format * ast_channel_oldwriteformat(struct ast_channel *chan)
int ast_channel_internal_alert_readable(struct ast_channel *chan)
struct ast_cdr * ast_channel_cdr(const struct ast_channel *chan)
struct ast_flags * ast_channel_flags(struct ast_channel *chan)
void ast_channel_redirecting_set(struct ast_channel *chan, struct ast_party_redirecting *value)
int ast_channel_priority(const struct ast_channel *chan)
void ast_channel_writetrans_set(struct ast_channel *chan, struct ast_trans_pvt *value)
void ast_channel_streamid_set(struct ast_channel *chan, int value)
void ast_channel_callid_set(struct ast_channel *chan, ast_callid callid)
void ast_channel_generatordata_set(struct ast_channel *chan, void *value)
struct ast_party_connected_line * ast_channel_connected(struct ast_channel *chan)
struct ast_str * ast_channel_dialed_causes_channels(const struct ast_channel *chan)
Retrieve a comma-separated list of channels for which dialed cause information is available.
void ast_channel_softhangup_internal_flag_set(struct ast_channel *chan, int value)
ast_callid ast_channel_callid(const struct ast_channel *chan)
const char * ast_channel_uniqueid(const struct ast_channel *chan)
const char * ast_channel_context(const struct ast_channel *chan)
char ast_channel_dtmf_digit_to_emulate(const struct ast_channel *chan)
unsigned long ast_channel_insmpl(const struct ast_channel *chan)
int ast_channel_fd_add(struct ast_channel *chan, int value)
Add a file descriptor to the channel without a fixed position.
ast_alert_status_t ast_channel_internal_alert_flush(struct ast_channel *chan)
void ast_channel_timingfd_set(struct ast_channel *chan, int value)
pthread_t ast_channel_blocker(const struct ast_channel *chan)
void ast_channel_sending_dtmf_tv_set(struct ast_channel *chan, struct timeval value)
int ast_channel_is_t38_active_nolock(struct ast_channel *chan)
ast_channel_is_t38_active variant. Use this if the channel is already locked prior to calling.
void ast_channel_internal_swap_topics(struct ast_channel *a, struct ast_channel *b)
Swap topics beteween two channels.
const char * ast_channel_appl(const struct ast_channel *chan)
void ast_channel_internal_cleanup(struct ast_channel *chan)
int ast_channel_unbridged_nolock(struct ast_channel *chan)
ast_channel_unbridged variant. Use this if the channel is already locked prior to calling.
void ast_channel_framehooks_set(struct ast_channel *chan, struct ast_framehook_list *value)
struct timeval ast_channel_creationtime(struct ast_channel *chan)
struct ast_channel_snapshot * ast_channel_snapshot(const struct ast_channel *chan)
struct ast_bridge_channel * ast_channel_internal_bridge_channel(const struct ast_channel *chan)
struct ast_framehook_list * ast_channel_framehooks(const struct ast_channel *chan)
void ast_channel_audiohooks_set(struct ast_channel *chan, struct ast_audiohook_list *value)
int ast_channel_fd(const struct ast_channel *chan, int which)
void ast_channel_timer_set(struct ast_channel *chan, struct ast_timer *value)
void ast_channel_internal_fd_set(struct ast_channel *chan, int which, int value)
void ast_channel_fin_set(struct ast_channel *chan, unsigned int value)
void ast_channel_set_rawreadformat(struct ast_channel *chan, struct ast_format *format)
struct ast_audiohook_list * ast_channel_audiohooks(const struct ast_channel *chan)
void ast_channel_tech_pvt_set(struct ast_channel *chan, void *value)
enum ama_flags ast_channel_amaflags(const struct ast_channel *chan)
void ast_channel_readtrans_set(struct ast_channel *chan, struct ast_trans_pvt *value)
void ast_channel_callgroup_set(struct ast_channel *chan, ast_group_t value)
void ast_channel_internal_bridge_set(struct ast_channel *chan, struct ast_bridge *value)
void * ast_channel_generatordata(const struct ast_channel *chan)
struct ast_format * ast_channel_rawwriteformat(struct ast_channel *chan)
void ast_channel_set_is_t38_active_nolock(struct ast_channel *chan, int is_t38_active)
Variant of ast_channel_set_is_t38_active. Use this if the channel is already locked prior to calling.
unsigned int ast_channel_fout(const struct ast_channel *chan)
struct ast_stream_topology * ast_channel_get_stream_topology(const struct ast_channel *chan)
Retrieve the topology of streams on a channel.
void ast_channel_set_unbridged(struct ast_channel *chan, int value)
Sets the unbridged flag and queues a NULL frame on the channel to trigger a check by bridge_channel_w...
void ast_channel_outsmpl_set(struct ast_channel *chan, unsigned long value)
int ast_channel_hangupcause(const struct ast_channel *chan)
int ast_channel_timingfd(const struct ast_channel *chan)
void ast_channel_fdno_set(struct ast_channel *chan, int value)
void ast_channel_set_rawwriteformat(struct ast_channel *chan, struct ast_format *format)
struct ast_party_dialed * ast_channel_dialed(struct ast_channel *chan)
void ast_channel_creationtime_set(struct ast_channel *chan, struct timeval *value)
struct ast_tone_zone * ast_channel_zone(const struct ast_channel *chan)
struct ast_party_id ast_channel_redirecting_effective_orig(struct ast_channel *chan)
enum ast_channel_adsicpe ast_channel_adsicpe(const struct ast_channel *chan)
int ast_channel_dialed_causes_add(const struct ast_channel *chan, const struct ast_control_pvt_cause_code *cause_code, int datalen)
Add cause code information to the channel.
void ast_channel_named_callgroups_set(struct ast_channel *chan, struct ast_namedgroups *value)
int ast_channel_alert_write(struct ast_channel *chan)
struct ast_channel * __ast_channel_internal_alloc(void(*destructor)(void *obj), const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *file, int line, const char *function)
const char * ast_channel_lastcontext(const struct ast_channel *chan)
int ast_channel_vstreamid(const struct ast_channel *chan)
struct ast_readq_list * ast_channel_readq(struct ast_channel *chan)
void ast_channel_set_is_t38_active(struct ast_channel *chan, int is_t38_active)
Sets the is_t38_active flag.
struct ast_jb * ast_channel_jb(struct ast_channel *chan)
ast_timing_func_t ast_channel_timingfunc(const struct ast_channel *chan)
static int collect_names_cb(void *obj, void *arg, int flags)
void ast_channel_set_readformat(struct ast_channel *chan, struct ast_format *format)
void ast_channel_dtmf_digit_to_emulate_set(struct ast_channel *chan, char value)
void ast_channel_softhangup_internal_flag_add(struct ast_channel *chan, int value)
struct timeval * ast_channel_whentohangup(struct ast_channel *chan)
struct ast_stream * ast_channel_get_default_stream(struct ast_channel *chan, enum ast_media_type type)
Retrieve the default stream of a specific media type on a channel.
struct ast_filestream * ast_channel_vstream(const struct ast_channel *chan)
ast_alert_status_t ast_channel_internal_alert_read(struct ast_channel *chan)
struct ast_format * ast_channel_writeformat(struct ast_channel *chan)
void ast_channel_internal_swap_uniqueid_and_linkedid(struct ast_channel *a, struct ast_channel *b)
Swap uniqueid and linkedid beteween two channels.
struct ast_generator * ast_channel_generator(const struct ast_channel *chan)
ast_group_t ast_channel_callgroup(const struct ast_channel *chan)
struct ast_party_id ast_channel_connected_effective_id(struct ast_channel *chan)
int ast_channel_unbridged(struct ast_channel *chan)
This function will check if the bridge needs to be re-evaluated due to external changes.
int ast_channel_hold_state(const struct ast_channel *chan)
void ast_channel_emulate_dtmf_duration_set(struct ast_channel *chan, unsigned int value)
void ast_channel_amaflags_set(struct ast_channel *chan, enum ama_flags value)
struct ast_party_connected_line * ast_channel_connected_indicated(struct ast_channel *chan)
void ast_channel_cdr_set(struct ast_channel *chan, struct ast_cdr *value)
void ast_channel_context_set(struct ast_channel *chan, const char *value)
int ast_channel_streamid(const struct ast_channel *chan)
void ast_channel_connected_set(struct ast_channel *chan, struct ast_party_connected_line *value)
void ast_channel_state_set(struct ast_channel *chan, enum ast_channel_state value)
int ast_channel_internal_setup_topics(struct ast_channel *chan)
void ast_channel_timingfunc_set(struct ast_channel *chan, ast_timing_func_t value)
struct ast_sched_context * ast_channel_sched(const struct ast_channel *chan)
int ast_channel_forward_endpoint(struct ast_channel *chan, struct ast_endpoint *endpoint)
Forward channel stasis messages to the given endpoint.
int ast_channel_fd_count(const struct ast_channel *chan)
Retrieve the number of file decriptor positions present on the channel.
static int pvt_cause_cmp_fn(void *obj, void *vstr, int flags)
Comparison function for pvt cause code frames.
struct ast_frame * ast_channel_dtmff(struct ast_channel *chan)
void ast_channel_internal_swap_snapshots(struct ast_channel *a, struct ast_channel *b)
Swap snapshots beteween two channels.
void ast_channel_music_state_set(struct ast_channel *chan, void *value)
unsigned int ast_channel_emulate_dtmf_duration(const struct ast_channel *chan)
struct ast_filestream * ast_channel_stream(const struct ast_channel *chan)
void ast_channel_internal_fd_clear(struct ast_channel *chan, int which)
struct ast_pbx * ast_channel_pbx(const struct ast_channel *chan)
void ast_channel_fout_set(struct ast_channel *chan, unsigned int value)
struct ast_autochan_list * ast_channel_autochans(struct ast_channel *chan)
const struct ast_channel_tech * ast_channel_tech(const struct ast_channel *chan)
void ast_channel_zone_set(struct ast_channel *chan, struct ast_tone_zone *value)
struct ast_channel * ast_channel_masqr(const struct ast_channel *chan)
int ast_channel_softhangup_internal_flag(struct ast_channel *chan)
enum ast_channel_state ast_channel_state(const struct ast_channel *chan)
struct timeval * ast_channel_dtmf_tv(struct ast_channel *chan)
struct ast_party_caller * ast_channel_caller(struct ast_channel *chan)
char ast_channel_sending_dtmf_digit(const struct ast_channel *chan)
int ast_channel_visible_indication(const struct ast_channel *chan)
struct ast_timer * ast_channel_timer(const struct ast_channel *chan)
struct ast_hangup_handler_list * ast_channel_hangup_handlers(struct ast_channel *chan)
void ast_channel_transfercapability_set(struct ast_channel *chan, unsigned short value)
unsigned long ast_channel_outsmpl(const struct ast_channel *chan)
void ast_channel_masqr_set(struct ast_channel *chan, struct ast_channel *value)
void ast_channel_internal_finalize(struct ast_channel *chan)
void ast_channel_internal_alertpipe_clear(struct ast_channel *chan)
void ast_channel_priority_set(struct ast_channel *chan, int value)
#define DIALED_CAUSES_BUCKETS
void ast_channel_hangupcause_set(struct ast_channel *chan, int value)
void ast_channel_internal_errno_set(enum ast_channel_error error)
void ast_channel_whentohangup_set(struct ast_channel *chan, struct timeval *value)
void ast_channel_pickupgroup_set(struct ast_channel *chan, ast_group_t value)
static int pvt_cause_hash_fn(const void *vpc, const int flags)
Hash function for pvt cause code frames.
int ast_channel_fd_isset(const struct ast_channel *chan, int which)
void ast_channel_adsicpe_set(struct ast_channel *chan, enum ast_channel_adsicpe value)
void ast_channel_dialed_causes_clear(const struct ast_channel *chan)
Clear all cause information from the channel.
#define DEFINE_STRINGFIELD_SETTERS_AND_INVALIDATE_FOR(field, publish, assert_on_null, invalidate)
int ast_channel_is_multistream(struct ast_channel *chan)
Determine if a channel is multi-stream capable.
int ast_channel_internal_alertpipe_init(struct ast_channel *chan)
void ast_channel_sched_set(struct ast_channel *chan, struct ast_sched_context *value)
void ast_channel_tech_set(struct ast_channel *chan, const struct ast_channel_tech *value)
const char * ast_channel_exten(const struct ast_channel *chan)
int ast_channel_is_t38_active(struct ast_channel *chan)
This function will check if T.38 is active on the channel.
struct ast_datastore_list * ast_channel_datastores(struct ast_channel *chan)
void ast_channel_masq_set(struct ast_channel *chan, struct ast_channel *value)
void ast_channel_varshead_set(struct ast_channel *chan, struct varshead *value)
void ast_channel_pbx_set(struct ast_channel *chan, struct ast_pbx *value)
struct ast_channel * ast_channel_internal_oldest_linkedid(struct ast_channel *a, struct ast_channel *b)
Determine which channel has an older linkedid.
void ast_channel_set_writeformat(struct ast_channel *chan, struct ast_format *format)
void ast_channel_vstream_set(struct ast_channel *chan, struct ast_filestream *value)
struct ast_format * ast_channel_readformat(struct ast_channel *chan)
int ast_channel_alert_writable(struct ast_channel *chan)
ast_channel_state
ast_channel states
Definition: channelstate.h:35
ast_media_type
Types of media.
Definition: codec.h:30
@ AST_MEDIA_TYPE_UNKNOWN
Definition: codec.h:31
@ AST_MEDIA_TYPE_END
Definition: codec.h:36
Endpoint abstractions.
const char * ast_format_cap_get_names(const struct ast_format_cap *cap, struct ast_str **buf)
Get the names of codecs of a set of formats.
Definition: format_cap.c:734
static const char name[]
Definition: format_mp3.c:68
#define SCOPE_EXIT_RTN(...)
#define SCOPE_EXIT_RTN_VALUE(__return_value,...)
#define SCOPE_ENTER(level,...)
struct stasis_topic * ast_channel_topic_all(void)
A topic which publishes the events for all channels.
struct stasis_topic * ast_endpoint_topic(struct ast_endpoint *endpoint)
Returns the topic for a specific endpoint.
void ast_channel_snapshot_invalidate_segment(struct ast_channel *chan, enum ast_channel_snapshot_segment_invalidation segment)
Invalidate a channel snapshot segment from being reused.
void ast_channel_publish_snapshot(struct ast_channel *chan)
Publish a ast_channel_snapshot for a channel.
@ AST_CHANNEL_SNAPSHOT_INVALIDATE_PEER
@ AST_CHANNEL_SNAPSHOT_INVALIDATE_CALLER
@ AST_CHANNEL_SNAPSHOT_INVALIDATE_HANGUP
@ AST_CHANNEL_SNAPSHOT_INVALIDATE_BRIDGE
@ AST_CHANNEL_SNAPSHOT_INVALIDATE_BASE
@ AST_CHANNEL_SNAPSHOT_INVALIDATE_CONNECTED
@ AST_CHANNEL_SNAPSHOT_INVALIDATE_DIALPLAN
struct ast_frame ast_null_frame
Definition: main/frame.c:79
void ast_callid_strnprint(char *buffer, size_t buffer_size, ast_callid callid)
copy a string representation of the callid into a target string
Definition: logger.c:2276
#define ast_debug(level,...)
Log a DEBUG message.
#define AST_CALLID_BUFFER_LENGTH
unsigned int ast_callid
Tone Indication Support.
int ast_atomic_fetchadd_int(volatile int *p, int v)
Atomically add v to *p and return the previous value of *p.
Definition: lock.h:757
Asterisk file paths, configured in asterisk.conf.
const char * ast_config_AST_SYSTEM_NAME
Definition: options.c:170
#define NULL
Definition: resample.c:96
struct stasis_forward * stasis_forward_cancel(struct stasis_forward *forward)
Definition: stasis.c:1548
struct stasis_topic * stasis_topic_create(const char *name)
Create a new topic.
Definition: stasis.c:617
struct stasis_forward * stasis_forward_all(struct stasis_topic *from_topic, struct stasis_topic *to_topic)
Create a subscription which forwards all messages from one topic to another.
Definition: stasis.c:1578
Endpoint abstractions.
Media Stream API.
struct ast_stream_topology * ast_stream_topology_alloc(void)
Create a stream topology.
Definition: stream.c:650
const char * ast_stream_topology_to_str(const struct ast_stream_topology *topology, struct ast_str **buf)
Get a string representing the topology for debugging/display purposes.
Definition: stream.c:936
void ast_stream_topology_free(struct ast_stream_topology *topology)
Unreference and destroy a stream topology.
Definition: stream.c:743
struct ast_stream_topology * ast_stream_topology_create_from_format_cap(struct ast_format_cap *cap)
A helper function that, given a format capabilities structure, creates a topology and separates the m...
Definition: stream.c:848
struct ast_stream * ast_stream_topology_get_first_stream_by_type(const struct ast_stream_topology *topology, enum ast_media_type type)
Gets the first active stream of a specific type from the topology.
Definition: stream.c:964
#define AST_DECLARE_STRING_FIELDS(field_list)
Declare the fields needed in a structure.
Definition: stringfields.h:341
#define AST_STRING_FIELD(name)
Declare a string field.
Definition: stringfields.h:303
#define ast_string_field_init(x, size)
Initialize a field pool and fields.
Definition: stringfields.h:359
#define ast_string_field_free_memory(x)
free all memory - to be called before destroying the object
Definition: stringfields.h:374
int ast_str_append(struct ast_str **buf, ssize_t max_len, const char *fmt,...)
Append to a thread local dynamic string.
Definition: strings.h:1139
#define S_OR(a, b)
returns the equivalent of logic or for strings: first one if not empty, otherwise second one.
Definition: strings.h:80
static force_inline int attribute_pure ast_str_hash(const char *str)
Compute a hash value on a string.
Definition: strings.h:1259
#define S_COR(a, b, c)
returns the equivalent of logic or for strings, with an additional boolean check: second one if not e...
Definition: strings.h:87
char * ast_tech_to_upper(char *dev_str)
Convert the tech portion of a device string to upper case.
Definition: strings.h:1236
static force_inline int attribute_pure ast_strlen_zero(const char *s)
Definition: strings.h:65
#define ast_str_tmp(init_len, __expr)
Provides a temporary ast_str and returns a copy of its buffer.
Definition: strings.h:1189
#define ast_str_create(init_len)
Create a malloc'ed dynamic length string.
Definition: strings.h:659
size_t ast_str_strlen(const struct ast_str *buf)
Returns the current length of the string stored within buf.
Definition: strings.h:730
void ast_copy_string(char *dst, const char *src, size_t size)
Size-limited null-terminating string copy.
Definition: strings.h:425
Generic container type.
Structure to pass both assignedid values to channel drivers.
Definition: channel.h:604
const char * uniqueid
Definition: channel.h:605
Structure that contains information regarding a channel in a bridge.
struct ast_channel * chan
Structure that contains information about a bridge.
Definition: bridge.h:349
Responsible for call detail data.
Definition: cdr.h:279
Channel UniqueId structure.
char unique_id[AST_MAX_UNIQUEID]
Structure representing a snapshot of channel state.
Structure to describe a channel "technology", ie a channel driver See for examples:
Definition: channel.h:628
int(*const write_stream)(struct ast_channel *chan, int stream_num, struct ast_frame *frame)
Write a frame on a specific stream, in standard format (see frame.h)
Definition: channel.h:753
struct ast_frame *(*const read_stream)(struct ast_channel *chan)
Read a frame (or chain of frames from the same stream), in standard format (see frame....
Definition: channel.h:747
Main Channel structure associated with a channel.
struct ast_filestream * stream
struct ast_cdr * cdr
struct ast_stream * default_streams[AST_MEDIA_TYPE_END]
struct ast_channel_id uniqueid
struct stasis_topic * topic
const ast_string_field language
const char * appl
const ast_string_field latest_musicclass
struct ast_bridge_channel * bridge_channel
struct ast_framehook_list * framehooks
const ast_string_field dialcontext
char lastexten[AST_MAX_EXTENSION]
struct timeval creationtime
struct ast_frame dtmff
char lastcontext[AST_MAX_CONTEXT]
const ast_string_field musicclass
struct ast_sched_context * sched
struct ast_channel_snapshot * snapshot
struct ast_datastore_list datastores
unsigned long outsmpl
struct ast_tone_zone * zone
struct ao2_container * dialed_causes
ast_timing_func_t timingfunc
const ast_string_field peeraccount
enum ast_channel_adsicpe adsicpe
struct ast_format * rawwriteformat
struct ast_generator * generator
struct ast_bridge * bridge
struct timeval sending_dtmf_tv
struct ast_party_connected_line connected
Channel Connected Line ID information.
const ast_string_field accountcode
struct ast_trans_pvt * writetrans
struct timeval whentohangup
const ast_string_field userfield
unsigned short transfercapability
unsigned int emulate_dtmf_duration
void * stream_topology_change_source
struct ast_channel::@331 fds
struct ast_readq_list readq
const ast_string_field call_forward
struct ast_format * rawreadformat
char exten[AST_MAX_EXTENSION]
struct timeval dtmf_tv
const ast_string_field parkinglot
struct ast_party_connected_line connected_indicated
Channel Connected Line ID information that was last indicated.
const char * data
struct ast_namedgroups * named_pickupgroups
struct stasis_forward * endpoint_forward
struct ast_flags snapshot_segment_flags
unsigned long insmpl
struct ast_trans_pvt * readtrans
struct ast_namedgroups * named_callgroups
struct ast_hangup_handler_list hangup_handlers
struct ast_timer * timer
struct varshead varshead
unsigned int fin
const struct ast_channel_tech * tech
struct ast_format * writeformat
struct ast_channel_id linkedid
enum ast_channel_state state
struct ast_party_redirecting redirecting
Redirecting/Diversion information.
struct ast_channel * masqr
ast_group_t pickupgroup
struct ast_party_dialed dialed
Dialed/Called information.
char context[AST_MAX_CONTEXT]
struct ast_jb jb
const ast_string_field name
struct ast_filestream * vstream
struct timeval answertime
struct ast_format * readformat
struct ast_audiohook_list * audiohooks
struct ast_format * oldwriteformat
struct stasis_forward * channel_forward
struct ast_channel * masq
struct ast_format_cap * nativeformats
const char * blockproc
struct ast_pbx * pbx
struct ast_flags flags
const ast_string_field hangupsource
ast_group_t callgroup
unsigned int fout
struct ast_autochan_list autochans
struct ast_stream_topology * stream_topology
unsigned int finalized
struct ast_party_caller caller
Channel Caller ID information.
char chan_name[AST_CHANNEL_NAME]
This structure is allocated by file.c in one chunk, together with buf_size and desc_size bytes of mem...
Definition: mod_format.h:101
Structure used to handle boolean flags.
Definition: utils.h:199
unsigned int flags
Definition: utils.h:200
Format capabilities structure, holds formats + preference order + etc.
Definition: format_cap.c:54
Definition of a media format.
Definition: format.c:43
Data structure associated with a single frame of data.
General jitterbuffer state.
Definition: abstract_jb.h:141
Caller Party information.
Definition: channel.h:418
Connected Line/Party information.
Definition: channel.h:456
Dialed/Called Party information.
Definition: channel.h:378
Information needed to identify an endpoint in a call.
Definition: channel.h:338
Redirecting Line information. RDNIS (Redirecting Directory Number Information Service) Where a call d...
Definition: channel.h:522
Definition: pbx.h:214
Support for dynamic strings.
Definition: strings.h:623
A set of tones for a given locale.
Definition: indications.h:74
Default structure for translators, with the basic fields and buffers, all allocated as part of the sa...
Definition: translate.h:213
List of channel drivers.
Definition: app_dial.c:797
Forwarding information.
Definition: stasis.c:1531
int value
Definition: syslog.c:37
Test Framework API.
#define ast_test_suite_event_notify(s, f,...)
Definition: test.h:189
static struct test_val b
static struct test_val a
void * ast_threadstorage_get(struct ast_threadstorage *ts, size_t init_size)
Retrieve thread storage.
#define AST_THREADSTORAGE(name)
Define a thread storage variable.
Definition: threadstorage.h:86
int error(const char *format,...)
Definition: utils/frame.c:999
#define ast_assert(a)
Definition: utils.h:739
#define ast_set_flag(p, flag)
Definition: utils.h:70
#define AST_FLAGS_ALL
Definition: utils.h:196
Vector container support.
#define AST_VECTOR_REPLACE(vec, idx, elem)
Replace an element at a specific position in a vector, growing the vector if needed.
Definition: vector.h:284
#define AST_VECTOR_RESET(vec, cleanup)
Reset vector.
Definition: vector.h:625
#define AST_VECTOR_ELEM_CLEANUP_NOOP(elem)
Vector element cleanup that does nothing.
Definition: vector.h:571
#define AST_VECTOR_SIZE(vec)
Get the number of elements in a vector.
Definition: vector.h:609
#define AST_VECTOR_FREE(vec)
Deallocates this vector.
Definition: vector.h:174
#define AST_VECTOR_INIT(vec, size)
Initialize a vector.
Definition: vector.h:113
#define AST_VECTOR(name, type)
Define a vector structure.
Definition: vector.h:44
#define AST_VECTOR_GET(vec, idx)
Get an element from a vector.
Definition: vector.h:680