app_queue: 'agent available' hint, cleanup restart, and initial state
[asterisk/asterisk.git] / apps / app_queue.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 1999 - 2006, 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 True call queues with optional send URL on answer
22  *
23  * \author Mark Spencer <markster@digium.com>
24  *
25  * \arg Config in \ref Config_qu queues.conf
26  *
27  * \par Development notes
28  * \note 2004-11-25: Persistent Dynamic Members added by:
29  *             NetNation Communications (www.netnation.com)
30  *             Kevin Lindsay <kevinl@netnation.com>
31  *
32  *             Each dynamic agent in each queue is now stored in the astdb.
33  *             When asterisk is restarted, each agent will be automatically
34  *             readded into their recorded queues. This feature can be
35  *             configured with the 'persistent_members=<1|0>' setting in the
36  *             '[general]' category in queues.conf. The default is on.
37  *
38  * \note 2004-06-04: Priorities in queues added by inAccess Networks (work funded by Hellas On Line (HOL) www.hol.gr).
39  *
40  * \note These features added by David C. Troy <dave@toad.net>:
41  *    - Per-queue holdtime calculation
42  *    - Estimated holdtime announcement
43  *    - Position announcement
44  *    - Abandoned/completed call counters
45  *    - Failout timer passed as optional app parameter
46  *    - Optional monitoring of calls, started when call is answered
47  *
48  * Patch Version 1.07 2003-12-24 01
49  *
50  * Added servicelevel statistic by Michiel Betel <michiel@betel.nl>
51  * Added Priority jumping code for adding and removing queue members by Jonathan Stanton <asterisk@doilooklikeicare.com>
52  *
53  * Fixed to work with CVS as of 2004-02-25 and released as 1.07a
54  * by Matthew Enger <m.enger@xi.com.au>
55  *
56  * \ingroup applications
57  */
58
59 /*** MODULEINFO
60         <use type="module">res_monitor</use>
61         <support_level>core</support_level>
62  ***/
63
64 #include "asterisk.h"
65
66 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
67
68 #include <sys/time.h>
69 #include <sys/signal.h>
70 #include <netinet/in.h>
71 #include <ctype.h>
72
73 #include "asterisk/lock.h"
74 #include "asterisk/file.h"
75 #include "asterisk/channel.h"
76 #include "asterisk/pbx.h"
77 #include "asterisk/app.h"
78 #include "asterisk/linkedlists.h"
79 #include "asterisk/module.h"
80 #include "asterisk/translate.h"
81 #include "asterisk/say.h"
82 #include "asterisk/features.h"
83 #include "asterisk/musiconhold.h"
84 #include "asterisk/cli.h"
85 #include "asterisk/manager.h"
86 #include "asterisk/config.h"
87 #include "asterisk/monitor.h"
88 #include "asterisk/utils.h"
89 #include "asterisk/causes.h"
90 #include "asterisk/astdb.h"
91 #include "asterisk/devicestate.h"
92 #include "asterisk/stringfields.h"
93 #include "asterisk/event.h"
94 #include "asterisk/astobj2.h"
95 #include "asterisk/strings.h"
96 #include "asterisk/global_datastores.h"
97 #include "asterisk/taskprocessor.h"
98 #include "asterisk/aoc.h"
99 #include "asterisk/callerid.h"
100 #include "asterisk/cel.h"
101 #include "asterisk/data.h"
102
103 /* Define, to debug reference counts on queues, without debugging reference counts on queue members */
104 /* #define REF_DEBUG_ONLY_QUEUES */
105
106 /*!
107  * \par Please read before modifying this file.
108  * There are three locks which are regularly used
109  * throughout this file, the queue list lock, the lock
110  * for each individual queue, and the interface list lock.
111  * Please be extra careful to always lock in the following order
112  * 1) queue list lock
113  * 2) individual queue lock
114  * 3) interface list lock
115  * This order has sort of "evolved" over the lifetime of this
116  * application, but it is now in place this way, so please adhere
117  * to this order!
118  */
119
120 /*** DOCUMENTATION
121         <application name="Queue" language="en_US">
122                 <synopsis>
123                         Queue a call for a call queue.
124                 </synopsis>
125                 <syntax>
126                         <parameter name="queuename" required="true" />
127                         <parameter name="options">
128                                 <optionlist>
129                                         <option name="C">
130                                                 <para>Mark all calls as "answered elsewhere" when cancelled.</para>
131                                         </option>
132                                         <option name="c">
133                                                 <para>Continue in the dialplan if the callee hangs up.</para>
134                                         </option>
135                                         <option name="d">
136                                                 <para>data-quality (modem) call (minimum delay).</para>
137                                         </option>
138                                         <option name="F" argsep="^">
139                                                 <argument name="context" required="false" />
140                                                 <argument name="exten" required="false" />
141                                                 <argument name="priority" required="true" />
142                                                 <para>When the caller hangs up, transfer the <emphasis>called member</emphasis>
143                                                 to the specified destination and <emphasis>start</emphasis> execution at that location.</para>
144                                                 <note>
145                                                         <para>Any channel variables you want the called channel to inherit from the caller channel must be
146                                                         prefixed with one or two underbars ('_').</para>
147                                                 </note>
148                                         </option>
149                                         <option name="F">
150                                                 <para>When the caller hangs up, transfer the <emphasis>called member</emphasis> to the next priority of
151                                                 the current extension and <emphasis>start</emphasis> execution at that location.</para>
152                                                 <note>
153                                                         <para>Any channel variables you want the called channel to inherit from the caller channel must be
154                                                         prefixed with one or two underbars ('_').</para>
155                                                 </note>
156                                                 <note>
157                                                         <para>Using this option from a Macro() or GoSub() might not make sense as there would be no return points.</para>
158                                                 </note>
159                                         </option>
160                                         <option name="h">
161                                                 <para>Allow <emphasis>callee</emphasis> to hang up by pressing <literal>*</literal>.</para>
162                                         </option>
163                                         <option name="H">
164                                                 <para>Allow <emphasis>caller</emphasis> to hang up by pressing <literal>*</literal>.</para>
165                                         </option>
166                                         <option name="n">
167                                                 <para>No retries on the timeout; will exit this application and
168                                                 go to the next step.</para>
169                                         </option>
170                                         <option name="i">
171                                                 <para>Ignore call forward requests from queue members and do nothing
172                                                 when they are requested.</para>
173                                         </option>
174                                         <option name="I">
175                                                 <para>Asterisk will ignore any connected line update requests or any redirecting party
176                                                 update requests it may receive on this dial attempt.</para>
177                                         </option>
178                                         <option name="r">
179                                                 <para>Ring instead of playing MOH. Periodic Announcements are still made, if applicable.</para>
180                                         </option>
181                                         <option name="R">
182                                                 <para>Ring instead of playing MOH when a member channel is actually ringing.</para>
183                                         </option>
184                                         <option name="t">
185                                                 <para>Allow the <emphasis>called</emphasis> user to transfer the calling user.</para>
186                                         </option>
187                                         <option name="T">
188                                                 <para>Allow the <emphasis>calling</emphasis> user to transfer the call.</para>
189                                         </option>
190                                         <option name="w">
191                                                 <para>Allow the <emphasis>called</emphasis> user to write the conversation to
192                                                 disk via Monitor.</para>
193                                         </option>
194                                         <option name="W">
195                                                 <para>Allow the <emphasis>calling</emphasis> user to write the conversation to
196                                                 disk via Monitor.</para>
197                                         </option>
198                                         <option name="k">
199                                                 <para>Allow the <emphasis>called</emphasis> party to enable parking of the call by sending
200                                                 the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
201                                         </option>
202                                         <option name="K">
203                                                 <para>Allow the <emphasis>calling</emphasis> party to enable parking of the call by sending
204                                                 the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
205                                         </option>
206                                         <option name="x">
207                                                 <para>Allow the <emphasis>called</emphasis> user to write the conversation
208                                                 to disk via MixMonitor.</para>
209                                         </option>
210                                         <option name="X">
211                                                 <para>Allow the <emphasis>calling</emphasis> user to write the conversation to
212                                                 disk via MixMonitor.</para>
213                                         </option>
214                                 </optionlist>
215                         </parameter>
216                         <parameter name="URL">
217                                 <para><replaceable>URL</replaceable> will be sent to the called party if the channel supports it.</para>
218                         </parameter>
219                         <parameter name="announceoverride" />
220                         <parameter name="timeout">
221                                 <para>Will cause the queue to fail out after a specified number of
222                                 seconds, checked between each <filename>queues.conf</filename> <replaceable>timeout</replaceable> and
223                                 <replaceable>retry</replaceable> cycle.</para>
224                         </parameter>
225                         <parameter name="AGI">
226                                 <para>Will setup an AGI script to be executed on the calling party's channel once they are
227                                 connected to a queue member.</para>
228                         </parameter>
229                         <parameter name="macro">
230                                 <para>Will run a macro on the calling party's channel once they are connected to a queue member.</para>
231                         </parameter>
232                         <parameter name="gosub">
233                                 <para>Will run a gosub on the calling party's channel once they are connected to a queue member.</para>
234                         </parameter>
235                         <parameter name="rule">
236                                 <para>Will cause the queue's defaultrule to be overridden by the rule specified.</para>
237                         </parameter>
238                         <parameter name="position">
239                                 <para>Attempt to enter the caller into the queue at the numerical position specified. <literal>1</literal>
240                                 would attempt to enter the caller at the head of the queue, and <literal>3</literal> would attempt to place
241                                 the caller third in the queue.</para>
242                         </parameter>
243                 </syntax>
244                 <description>
245                         <para>In addition to transferring the call, a call may be parked and then picked
246                         up by another user.</para>
247                         <para>This application will return to the dialplan if the queue does not exist, or
248                         any of the join options cause the caller to not enter the queue.</para>
249                         <para>This application does not automatically answer and should be preceeded
250                         by an application such as Answer(), Progress(), or Ringing().</para>
251                         <para>This application sets the following channel variable upon completion:</para>
252                         <variablelist>
253                                 <variable name="QUEUESTATUS">
254                                         <para>The status of the call as a text string.</para>
255                                         <value name="TIMEOUT" />
256                                         <value name="FULL" />
257                                         <value name="JOINEMPTY" />
258                                         <value name="LEAVEEMPTY" />
259                                         <value name="JOINUNAVAIL" />
260                                         <value name="LEAVEUNAVAIL" />
261                                         <value name="CONTINUE" />
262                                 </variable>
263                         </variablelist>
264                 </description>
265                 <see-also>
266                         <ref type="application">Queue</ref>
267                         <ref type="application">QueueLog</ref>
268                         <ref type="application">AddQueueMember</ref>
269                         <ref type="application">RemoveQueueMember</ref>
270                         <ref type="application">PauseQueueMember</ref>
271                         <ref type="application">UnpauseQueueMember</ref>
272                         <ref type="function">QUEUE_VARIABLES</ref>
273                         <ref type="function">QUEUE_MEMBER</ref>
274                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
275                         <ref type="function">QUEUE_EXISTS</ref>
276                         <ref type="function">QUEUE_WAITING_COUNT</ref>
277                         <ref type="function">QUEUE_MEMBER_LIST</ref>
278                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
279                 </see-also>
280         </application>
281         <application name="AddQueueMember" language="en_US">
282                 <synopsis>
283                         Dynamically adds queue members.
284                 </synopsis>
285                 <syntax>
286                         <parameter name="queuename" required="true" />
287                         <parameter name="interface" />
288                         <parameter name="penalty" />
289                         <parameter name="options" />
290                         <parameter name="membername" />
291                         <parameter name="stateinterface" />
292                 </syntax>
293                 <description>
294                         <para>Dynamically adds interface to an existing queue. If the interface is
295                         already in the queue it will return an error.</para>
296                         <para>This application sets the following channel variable upon completion:</para>
297                         <variablelist>
298                                 <variable name="AQMSTATUS">
299                                         <para>The status of the attempt to add a queue member as a text string.</para>
300                                         <value name="ADDED" />
301                                         <value name="MEMBERALREADY" />
302                                         <value name="NOSUCHQUEUE" />
303                                 </variable>
304                         </variablelist>
305                 </description>
306                 <see-also>
307                         <ref type="application">Queue</ref>
308                         <ref type="application">QueueLog</ref>
309                         <ref type="application">AddQueueMember</ref>
310                         <ref type="application">RemoveQueueMember</ref>
311                         <ref type="application">PauseQueueMember</ref>
312                         <ref type="application">UnpauseQueueMember</ref>
313                         <ref type="function">QUEUE_VARIABLES</ref>
314                         <ref type="function">QUEUE_MEMBER</ref>
315                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
316                         <ref type="function">QUEUE_EXISTS</ref>
317                         <ref type="function">QUEUE_WAITING_COUNT</ref>
318                         <ref type="function">QUEUE_MEMBER_LIST</ref>
319                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
320                 </see-also>
321         </application>
322         <application name="RemoveQueueMember" language="en_US">
323                 <synopsis>
324                         Dynamically removes queue members.
325                 </synopsis>
326                 <syntax>
327                         <parameter name="queuename" required="true" />
328                         <parameter name="interface" />
329                 </syntax>
330                 <description>
331                         <para>If the interface is <emphasis>NOT</emphasis> in the queue it will return an error.</para>
332                         <para>This application sets the following channel variable upon completion:</para>
333                         <variablelist>
334                                 <variable name="RQMSTATUS">
335                                         <value name="REMOVED" />
336                                         <value name="NOTINQUEUE" />
337                                         <value name="NOSUCHQUEUE" />
338                                         <value name="NOTDYNAMIC" />
339                                 </variable>
340                         </variablelist>
341                         <para>Example: RemoveQueueMember(techsupport,SIP/3000)</para>
342                 </description>
343                 <see-also>
344                         <ref type="application">Queue</ref>
345                         <ref type="application">QueueLog</ref>
346                         <ref type="application">AddQueueMember</ref>
347                         <ref type="application">RemoveQueueMember</ref>
348                         <ref type="application">PauseQueueMember</ref>
349                         <ref type="application">UnpauseQueueMember</ref>
350                         <ref type="function">QUEUE_VARIABLES</ref>
351                         <ref type="function">QUEUE_MEMBER</ref>
352                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
353                         <ref type="function">QUEUE_EXISTS</ref>
354                         <ref type="function">QUEUE_WAITING_COUNT</ref>
355                         <ref type="function">QUEUE_MEMBER_LIST</ref>
356                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
357                 </see-also>
358         </application>
359         <application name="PauseQueueMember" language="en_US">
360                 <synopsis>
361                         Pauses a queue member.
362                 </synopsis>
363                 <syntax>
364                         <parameter name="queuename" />
365                         <parameter name="interface" required="true" />
366                         <parameter name="options" />
367                         <parameter name="reason">
368                                 <para>Is used to add extra information to the appropriate queue_log entries and manager events.</para>
369                         </parameter>
370                 </syntax>
371                 <description>
372                         <para>Pauses (blocks calls for) a queue member. The given interface will be paused in the given queue.
373                         This prevents any calls from being sent from the queue to the interface until it is
374                         unpaused with UnpauseQueueMember or the manager interface.  If no queuename is given,
375                         the interface is paused in every queue it is a member of. The application will fail if the
376                         interface is not found.</para>
377                         <para>This application sets the following channel variable upon completion:</para>
378                         <variablelist>
379                                 <variable name="PQMSTATUS">
380                                         <para>The status of the attempt to pause a queue member as a text string.</para>
381                                         <value name="PAUSED" />
382                                         <value name="NOTFOUND" />
383                                 </variable>
384                         </variablelist>
385                         <para>Example: PauseQueueMember(,SIP/3000)</para>
386                 </description>
387                 <see-also>
388                         <ref type="application">Queue</ref>
389                         <ref type="application">QueueLog</ref>
390                         <ref type="application">AddQueueMember</ref>
391                         <ref type="application">RemoveQueueMember</ref>
392                         <ref type="application">PauseQueueMember</ref>
393                         <ref type="application">UnpauseQueueMember</ref>
394                         <ref type="function">QUEUE_VARIABLES</ref>
395                         <ref type="function">QUEUE_MEMBER</ref>
396                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
397                         <ref type="function">QUEUE_EXISTS</ref>
398                         <ref type="function">QUEUE_WAITING_COUNT</ref>
399                         <ref type="function">QUEUE_MEMBER_LIST</ref>
400                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
401                 </see-also>
402         </application>
403         <application name="UnpauseQueueMember" language="en_US">
404                 <synopsis>
405                         Unpauses a queue member.                
406                 </synopsis>
407                 <syntax>
408                         <parameter name="queuename" />
409                         <parameter name="interface" required="true" />
410                         <parameter name="options" />
411                         <parameter name="reason">
412                                 <para>Is used to add extra information to the appropriate queue_log entries and manager events.</para>
413                         </parameter>
414                 </syntax>
415                 <description>
416                         <para>Unpauses (resumes calls to) a queue member. This is the counterpart to <literal>PauseQueueMember()</literal>
417                         and operates exactly the same way, except it unpauses instead of pausing the given interface.</para>
418                         <para>This application sets the following channel variable upon completion:</para>
419                         <variablelist>
420                                 <variable name="UPQMSTATUS">
421                                         <para>The status of the attempt to unpause a queue member as a text string.</para>
422                                         <value name="UNPAUSED" />
423                                         <value name="NOTFOUND" />
424                                 </variable>
425                         </variablelist>
426                         <para>Example: UnpauseQueueMember(,SIP/3000)</para>
427                 </description>
428                 <see-also>
429                         <ref type="application">Queue</ref>
430                         <ref type="application">QueueLog</ref>
431                         <ref type="application">AddQueueMember</ref>
432                         <ref type="application">RemoveQueueMember</ref>
433                         <ref type="application">PauseQueueMember</ref>
434                         <ref type="application">UnpauseQueueMember</ref>
435                         <ref type="function">QUEUE_VARIABLES</ref>
436                         <ref type="function">QUEUE_MEMBER</ref>
437                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
438                         <ref type="function">QUEUE_EXISTS</ref>
439                         <ref type="function">QUEUE_WAITING_COUNT</ref>
440                         <ref type="function">QUEUE_MEMBER_LIST</ref>
441                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
442                 </see-also>
443         </application>
444         <application name="QueueLog" language="en_US">
445                 <synopsis>
446                         Writes to the queue_log file.
447                 </synopsis>
448                 <syntax>
449                         <parameter name="queuename" required="true" />
450                         <parameter name="uniqueid" required="true" />
451                         <parameter name="agent" required="true" />
452                         <parameter name="event" required="true" />
453                         <parameter name="additionalinfo" />
454                 </syntax>
455                 <description>
456                         <para>Allows you to write your own events into the queue log.</para>
457                         <para>Example: QueueLog(101,${UNIQUEID},${AGENT},WENTONBREAK,600)</para>
458                 </description>
459                 <see-also>
460                         <ref type="application">Queue</ref>
461                         <ref type="application">QueueLog</ref>
462                         <ref type="application">AddQueueMember</ref>
463                         <ref type="application">RemoveQueueMember</ref>
464                         <ref type="application">PauseQueueMember</ref>
465                         <ref type="application">UnpauseQueueMember</ref>
466                         <ref type="function">QUEUE_VARIABLES</ref>
467                         <ref type="function">QUEUE_MEMBER</ref>
468                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
469                         <ref type="function">QUEUE_EXISTS</ref>
470                         <ref type="function">QUEUE_WAITING_COUNT</ref>
471                         <ref type="function">QUEUE_MEMBER_LIST</ref>
472                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
473                 </see-also>
474         </application>
475         <function name="QUEUE_VARIABLES" language="en_US">
476                 <synopsis>
477                         Return Queue information in variables.
478                 </synopsis>
479                 <syntax>
480                         <parameter name="queuename" required="true">
481                                 <enumlist>
482                                         <enum name="QUEUEMAX">
483                                                 <para>Maxmimum number of calls allowed.</para>
484                                         </enum>
485                                         <enum name="QUEUESTRATEGY">
486                                                 <para>The strategy of the queue.</para>
487                                         </enum>
488                                         <enum name="QUEUECALLS">
489                                                 <para>Number of calls currently in the queue.</para>
490                                         </enum>
491                                         <enum name="QUEUEHOLDTIME">
492                                                 <para>Current average hold time.</para>
493                                         </enum>
494                                         <enum name="QUEUECOMPLETED">
495                                                 <para>Number of completed calls for the queue.</para>
496                                         </enum>
497                                         <enum name="QUEUEABANDONED">
498                                                 <para>Number of abandoned calls.</para>
499                                         </enum>
500                                         <enum name="QUEUESRVLEVEL">
501                                                 <para>Queue service level.</para>
502                                         </enum>
503                                         <enum name="QUEUESRVLEVELPERF">
504                                                 <para>Current service level performance.</para>
505                                         </enum>
506                                 </enumlist>
507                         </parameter>
508                 </syntax>
509                 <description>
510                         <para>Makes the following queue variables available.</para>
511                         <para>Returns <literal>0</literal> if queue is found and setqueuevar is defined, <literal>-1</literal> otherwise.</para>
512                 </description>
513                 <see-also>
514                         <ref type="application">Queue</ref>
515                         <ref type="application">QueueLog</ref>
516                         <ref type="application">AddQueueMember</ref>
517                         <ref type="application">RemoveQueueMember</ref>
518                         <ref type="application">PauseQueueMember</ref>
519                         <ref type="application">UnpauseQueueMember</ref>
520                         <ref type="function">QUEUE_VARIABLES</ref>
521                         <ref type="function">QUEUE_MEMBER</ref>
522                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
523                         <ref type="function">QUEUE_EXISTS</ref>
524                         <ref type="function">QUEUE_WAITING_COUNT</ref>
525                         <ref type="function">QUEUE_MEMBER_LIST</ref>
526                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
527                 </see-also>
528         </function>
529         <function name="QUEUE_MEMBER" language="en_US">
530                 <synopsis>
531                         Count number of members answering a queue.
532                 </synopsis>
533                 <syntax>
534                         <parameter name="queuename" required="true" />
535                         <parameter name="option" required="true">
536                                 <enumlist>
537                                         <enum name="logged">
538                                                 <para>Returns the number of logged-in members for the specified queue.</para>
539                                         </enum>
540                                         <enum name="free">
541                                                 <para>Returns the number of logged-in members for the specified queue that either can take calls or are currently wrapping up after a previous call.</para>
542                                         </enum>
543                                         <enum name="ready">
544                                                 <para>Returns the number of logged-in members for the specified queue that are immediately available to answer a call.</para>
545                                         </enum>
546                                         <enum name="count">
547                                                 <para>Returns the total number of members for the specified queue.</para>
548                                         </enum>
549                                         <enum name="penalty">
550                                                 <para>Gets or sets queue member penalty.</para>
551                                         </enum>
552                                         <enum name="paused">
553                                                 <para>Gets or sets queue member paused status.</para>
554                                         </enum>
555                                         <enum name="ringinuse">
556                                                 <para>Gets or sets queue member ringinuse.</para>
557                                         </enum>
558                                 </enumlist>
559                         </parameter>
560                         <parameter name="interface" required="false" />
561                 </syntax>
562                 <description>
563                         <para>Allows access to queue counts [R] and member information [R/W].</para>
564                         <para>
565                                 <replaceable>queuename</replaceable> is required for all operations
566                                 <replaceable>interface</replaceable> is required for all member operations.
567                         </para>
568                 </description>
569                 <see-also>
570                         <ref type="application">Queue</ref>
571                         <ref type="application">QueueLog</ref>
572                         <ref type="application">AddQueueMember</ref>
573                         <ref type="application">RemoveQueueMember</ref>
574                         <ref type="application">PauseQueueMember</ref>
575                         <ref type="application">UnpauseQueueMember</ref>
576                         <ref type="function">QUEUE_VARIABLES</ref>
577                         <ref type="function">QUEUE_MEMBER</ref>
578                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
579                         <ref type="function">QUEUE_EXISTS</ref>
580                         <ref type="function">QUEUE_WAITING_COUNT</ref>
581                         <ref type="function">QUEUE_MEMBER_LIST</ref>
582                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
583                 </see-also>
584         </function>
585         <function name="QUEUE_MEMBER_COUNT" language="en_US">
586                 <synopsis>
587                         Count number of members answering a queue.
588                 </synopsis>
589                 <syntax>
590                         <parameter name="queuename" required="true" />
591                 </syntax>
592                 <description>
593                         <para>Returns the number of members currently associated with the specified <replaceable>queuename</replaceable>.</para>
594                         <warning><para>This function has been deprecated in favor of the <literal>QUEUE_MEMBER()</literal> function</para></warning>
595                 </description>
596                 <see-also>
597                         <ref type="application">Queue</ref>
598                         <ref type="application">QueueLog</ref>
599                         <ref type="application">AddQueueMember</ref>
600                         <ref type="application">RemoveQueueMember</ref>
601                         <ref type="application">PauseQueueMember</ref>
602                         <ref type="application">UnpauseQueueMember</ref>
603                         <ref type="function">QUEUE_VARIABLES</ref>
604                         <ref type="function">QUEUE_MEMBER</ref>
605                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
606                         <ref type="function">QUEUE_EXISTS</ref>
607                         <ref type="function">QUEUE_WAITING_COUNT</ref>
608                         <ref type="function">QUEUE_MEMBER_LIST</ref>
609                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
610                 </see-also>
611         </function>
612         <function name="QUEUE_EXISTS" language="en_US">
613                 <synopsis>
614                         Check if a named queue exists on this server
615                 </synopsis>
616                 <syntax>
617                         <parameter name="queuename" />
618                 </syntax>
619                 <description>
620                         <para>Returns 1 if the specified queue exists, 0 if it does not</para>
621                 </description>
622                 <see-also>
623                         <ref type="application">Queue</ref>
624                         <ref type="application">QueueLog</ref>
625                         <ref type="application">AddQueueMember</ref>
626                         <ref type="application">RemoveQueueMember</ref>
627                         <ref type="application">PauseQueueMember</ref>
628                         <ref type="application">UnpauseQueueMember</ref>
629                         <ref type="function">QUEUE_VARIABLES</ref>
630                         <ref type="function">QUEUE_MEMBER</ref>
631                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
632                         <ref type="function">QUEUE_EXISTS</ref>
633                         <ref type="function">QUEUE_WAITING_COUNT</ref>
634                         <ref type="function">QUEUE_MEMBER_LIST</ref>
635                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
636                 </see-also>
637         </function>
638         <function name="QUEUE_WAITING_COUNT" language="en_US">
639                 <synopsis>
640                         Count number of calls currently waiting in a queue.
641                 </synopsis>
642                 <syntax>
643                         <parameter name="queuename" />
644                 </syntax>
645                 <description>
646                         <para>Returns the number of callers currently waiting in the specified <replaceable>queuename</replaceable>.</para>
647                 </description>
648                 <see-also>
649                         <ref type="application">Queue</ref>
650                         <ref type="application">QueueLog</ref>
651                         <ref type="application">AddQueueMember</ref>
652                         <ref type="application">RemoveQueueMember</ref>
653                         <ref type="application">PauseQueueMember</ref>
654                         <ref type="application">UnpauseQueueMember</ref>
655                         <ref type="function">QUEUE_VARIABLES</ref>
656                         <ref type="function">QUEUE_MEMBER</ref>
657                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
658                         <ref type="function">QUEUE_EXISTS</ref>
659                         <ref type="function">QUEUE_WAITING_COUNT</ref>
660                         <ref type="function">QUEUE_MEMBER_LIST</ref>
661                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
662                 </see-also>
663         </function>
664         <function name="QUEUE_MEMBER_LIST" language="en_US">
665                 <synopsis>
666                         Returns a list of interfaces on a queue.
667                 </synopsis>
668                 <syntax>
669                         <parameter name="queuename" required="true" />
670                 </syntax>
671                 <description>
672                         <para>Returns a comma-separated list of members associated with the specified <replaceable>queuename</replaceable>.</para>
673                 </description>
674                 <see-also>
675                         <ref type="application">Queue</ref>
676                         <ref type="application">QueueLog</ref>
677                         <ref type="application">AddQueueMember</ref>
678                         <ref type="application">RemoveQueueMember</ref>
679                         <ref type="application">PauseQueueMember</ref>
680                         <ref type="application">UnpauseQueueMember</ref>
681                         <ref type="function">QUEUE_VARIABLES</ref>
682                         <ref type="function">QUEUE_MEMBER</ref>
683                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
684                         <ref type="function">QUEUE_EXISTS</ref>
685                         <ref type="function">QUEUE_WAITING_COUNT</ref>
686                         <ref type="function">QUEUE_MEMBER_LIST</ref>
687                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
688                 </see-also>
689         </function>
690         <function name="QUEUE_MEMBER_PENALTY" language="en_US">
691                 <synopsis>
692                         Gets or sets queue members penalty.
693                 </synopsis>
694                 <syntax>
695                         <parameter name="queuename" required="true" />
696                         <parameter name="interface" required="true" />
697                 </syntax>
698                 <description>
699                         <para>Gets or sets queue members penalty.</para>
700                         <warning><para>This function has been deprecated in favor of the <literal>QUEUE_MEMBER()</literal> function</para></warning>
701                 </description>
702                 <see-also>
703                         <ref type="application">Queue</ref>
704                         <ref type="application">QueueLog</ref>
705                         <ref type="application">AddQueueMember</ref>
706                         <ref type="application">RemoveQueueMember</ref>
707                         <ref type="application">PauseQueueMember</ref>
708                         <ref type="application">UnpauseQueueMember</ref>
709                         <ref type="function">QUEUE_VARIABLES</ref>
710                         <ref type="function">QUEUE_MEMBER</ref>
711                         <ref type="function">QUEUE_MEMBER_COUNT</ref>
712                         <ref type="function">QUEUE_EXISTS</ref>
713                         <ref type="function">QUEUE_WAITING_COUNT</ref>
714                         <ref type="function">QUEUE_MEMBER_LIST</ref>
715                         <ref type="function">QUEUE_MEMBER_PENALTY</ref>
716                 </see-also>
717         </function>
718         <manager name="Queues" language="en_US">
719                 <synopsis>
720                         Queues.
721                 </synopsis>
722                 <syntax>
723                 </syntax>
724                 <description>
725                 </description>
726         </manager>
727         <manager name="QueueStatus" language="en_US">
728                 <synopsis>
729                         Show queue status.
730                 </synopsis>
731                 <syntax>
732                         <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
733                         <parameter name="Queue" />
734                         <parameter name="Member" />
735                 </syntax>
736                 <description>
737                 </description>
738         </manager>
739         <manager name="QueueSummary" language="en_US">
740                 <synopsis>
741                         Show queue summary.
742                 </synopsis>
743                 <syntax>
744                         <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
745                         <parameter name="Queue" />
746                 </syntax>
747                 <description>
748                 </description>
749         </manager>
750         <manager name="QueueAdd" language="en_US">
751                 <synopsis>
752                         Add interface to queue.
753                 </synopsis>
754                 <syntax>
755                         <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
756                         <parameter name="Queue" required="true" />
757                         <parameter name="Interface" required="true" />
758                         <parameter name="Penalty" />
759                         <parameter name="Paused" />
760                         <parameter name="MemberName" />
761                         <parameter name="StateInterface" />
762                 </syntax>
763                 <description>
764                 </description>
765         </manager>
766         <manager name="QueueRemove" language="en_US">
767                 <synopsis>
768                         Remove interface from queue.
769                 </synopsis>
770                 <syntax>
771                         <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
772                         <parameter name="Queue" required="true" />
773                         <parameter name="Interface" required="true" />
774                 </syntax>
775                 <description>
776                 </description>
777         </manager>
778         <manager name="QueuePause" language="en_US">
779                 <synopsis>
780                         Makes a queue member temporarily unavailable.
781                 </synopsis>
782                 <syntax>
783                         <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
784                         <parameter name="Interface" required="true" />
785                         <parameter name="Paused" required="true" />
786                         <parameter name="Queue" />
787                         <parameter name="Reason" />
788                 </syntax>
789                 <description>
790                 </description>
791         </manager>
792         <manager name="QueueLog" language="en_US">
793                 <synopsis>
794                         Adds custom entry in queue_log.
795                 </synopsis>
796                 <syntax>
797                         <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
798                         <parameter name="Queue" required="true" />
799                         <parameter name="Event" required="true" />
800                         <parameter name="Uniqueid" />
801                         <parameter name="Interface" />
802                         <parameter name="Message" />
803                 </syntax>
804                 <description>
805                 </description>
806         </manager>
807         <manager name="QueuePenalty" language="en_US">
808                 <synopsis>
809                         Set the penalty for a queue member.
810                 </synopsis>
811                 <syntax>
812                         <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
813                         <parameter name="Interface" required="true" />
814                         <parameter name="Penalty" required="true" />
815                         <parameter name="Queue" />
816                 </syntax>
817                 <description>
818                 </description>
819         </manager>
820
821         <manager name="QueueMemberRingInUse" language="en_US">
822                 <synopsis>
823                         Set the ringinuse value for a queue member.
824                 </synopsis>
825                 <syntax>
826                         <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
827                         <parameter name="Interface" required="true" />
828                         <parameter name="RingInUse" required="true" />
829                         <parameter name="Queue" />
830                 </syntax>
831                 <description>
832                 </description>
833         </manager>
834
835         <manager name="QueueRule" language="en_US">
836                 <synopsis>
837                         Queue Rules.
838                 </synopsis>
839                 <syntax>
840                         <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
841                         <parameter name="Rule" />
842                 </syntax>
843                 <description>
844                 </description>
845         </manager>
846         <manager name="QueueReload" language="en_US">
847                 <synopsis>
848                         Reload a queue, queues, or any sub-section of a queue or queues.
849                 </synopsis>
850                 <syntax>
851                         <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
852                         <parameter name="Queue" />
853                         <parameter name="Members">
854                                 <enumlist>
855                                         <enum name="yes" />
856                                         <enum name="no" />
857                                 </enumlist>
858                         </parameter>
859                         <parameter name="Rules">
860                                 <enumlist>
861                                         <enum name="yes" />
862                                         <enum name="no" />
863                                 </enumlist>
864                         </parameter>
865                         <parameter name="Parameters">
866                                 <enumlist>
867                                         <enum name="yes" />
868                                         <enum name="no" />
869                                 </enumlist>
870                         </parameter>
871                 </syntax>
872                 <description>
873                 </description>
874         </manager>
875         <manager name="QueueReset" language="en_US">
876                 <synopsis>
877                         Reset queue statistics.
878                 </synopsis>
879                 <syntax>
880                         <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
881                         <parameter name="Queue" />
882                 </syntax>
883                 <description>
884                 </description>
885         </manager>
886  ***/
887
888 enum {
889         OPT_MARK_AS_ANSWERED =       (1 << 0),
890         OPT_GO_ON =                  (1 << 1),
891         OPT_DATA_QUALITY =           (1 << 2),
892         OPT_CALLEE_GO_ON =           (1 << 3),
893         OPT_CALLEE_HANGUP =          (1 << 4),
894         OPT_CALLER_HANGUP =          (1 << 5),
895         OPT_IGNORE_CALL_FW =         (1 << 6),
896         OPT_IGNORE_CONNECTEDLINE =   (1 << 7),
897         OPT_CALLEE_PARK =            (1 << 8),
898         OPT_CALLER_PARK =            (1 << 9),
899         OPT_NO_RETRY =               (1 << 10),
900         OPT_RINGING =                (1 << 11),
901         OPT_RING_WHEN_RINGING =      (1 << 12),
902         OPT_CALLEE_TRANSFER =        (1 << 13),
903         OPT_CALLER_TRANSFER =        (1 << 14),
904         OPT_CALLEE_AUTOMIXMON =      (1 << 15),
905         OPT_CALLER_AUTOMIXMON =      (1 << 16),
906         OPT_CALLEE_AUTOMON =         (1 << 17),
907         OPT_CALLER_AUTOMON =         (1 << 18),
908 };
909
910 enum {
911         OPT_ARG_CALLEE_GO_ON = 0,
912         /* note: this entry _MUST_ be the last one in the enum */
913         OPT_ARG_ARRAY_SIZE
914 };
915
916 AST_APP_OPTIONS(queue_exec_options, BEGIN_OPTIONS
917         AST_APP_OPTION('C', OPT_MARK_AS_ANSWERED),
918         AST_APP_OPTION('c', OPT_GO_ON),
919         AST_APP_OPTION('d', OPT_DATA_QUALITY),
920         AST_APP_OPTION_ARG('F', OPT_CALLEE_GO_ON, OPT_ARG_CALLEE_GO_ON),
921         AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
922         AST_APP_OPTION('H', OPT_CALLER_HANGUP),
923         AST_APP_OPTION('i', OPT_IGNORE_CALL_FW),
924         AST_APP_OPTION('I', OPT_IGNORE_CONNECTEDLINE),
925         AST_APP_OPTION('k', OPT_CALLEE_PARK),
926         AST_APP_OPTION('K', OPT_CALLER_PARK),
927         AST_APP_OPTION('n', OPT_NO_RETRY),
928         AST_APP_OPTION('r', OPT_RINGING),
929         AST_APP_OPTION('R', OPT_RING_WHEN_RINGING),
930         AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
931         AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
932         AST_APP_OPTION('x', OPT_CALLEE_AUTOMIXMON),
933         AST_APP_OPTION('X', OPT_CALLER_AUTOMIXMON),
934         AST_APP_OPTION('w', OPT_CALLEE_AUTOMON),
935         AST_APP_OPTION('W', OPT_CALLER_AUTOMON),
936 END_OPTIONS);
937
938 enum {
939         QUEUE_STRATEGY_RINGALL = 0,
940         QUEUE_STRATEGY_LEASTRECENT,
941         QUEUE_STRATEGY_FEWESTCALLS,
942         QUEUE_STRATEGY_RANDOM,
943         QUEUE_STRATEGY_RRMEMORY,
944         QUEUE_STRATEGY_LINEAR,
945         QUEUE_STRATEGY_WRANDOM,
946         QUEUE_STRATEGY_RRORDERED,
947 };
948
949 enum {
950      QUEUE_AUTOPAUSE_OFF = 0,
951      QUEUE_AUTOPAUSE_ON,
952      QUEUE_AUTOPAUSE_ALL
953 };
954
955 enum queue_reload_mask {
956         QUEUE_RELOAD_PARAMETERS = (1 << 0),
957         QUEUE_RELOAD_MEMBER = (1 << 1),
958         QUEUE_RELOAD_RULES = (1 << 2),
959         QUEUE_RESET_STATS = (1 << 3),
960 };
961
962 static const struct strategy {
963         int strategy;
964         const char *name;
965 } strategies[] = {
966         { QUEUE_STRATEGY_RINGALL, "ringall" },
967         { QUEUE_STRATEGY_LEASTRECENT, "leastrecent" },
968         { QUEUE_STRATEGY_FEWESTCALLS, "fewestcalls" },
969         { QUEUE_STRATEGY_RANDOM, "random" },
970         { QUEUE_STRATEGY_RRMEMORY, "rrmemory" },
971         { QUEUE_STRATEGY_RRMEMORY, "roundrobin" },
972         { QUEUE_STRATEGY_LINEAR, "linear" },
973         { QUEUE_STRATEGY_WRANDOM, "wrandom"},
974         { QUEUE_STRATEGY_RRORDERED, "rrordered"},
975 };
976
977 static const struct autopause {
978         int autopause;
979         const char *name;
980 } autopausesmodes [] = {
981         { QUEUE_AUTOPAUSE_OFF,"no" },
982         { QUEUE_AUTOPAUSE_ON, "yes" },
983         { QUEUE_AUTOPAUSE_ALL,"all" },
984 };
985
986
987 static struct ast_taskprocessor *devicestate_tps;
988
989 #define DEFAULT_RETRY           5
990 #define DEFAULT_TIMEOUT         15
991 #define RECHECK                 1               /*!< Recheck every second to see we we're at the top yet */
992 #define MAX_PERIODIC_ANNOUNCEMENTS 10           /*!< The maximum periodic announcements we can have */
993 #define DEFAULT_MIN_ANNOUNCE_FREQUENCY 15       /*!< The minimum number of seconds between position announcements \
994                                                      The default value of 15 provides backwards compatibility */
995 #define MAX_QUEUE_BUCKETS 53
996
997 #define RES_OKAY        0               /*!< Action completed */
998 #define RES_EXISTS      (-1)            /*!< Entry already exists */
999 #define RES_OUTOFMEMORY (-2)            /*!< Out of memory */
1000 #define RES_NOSUCHQUEUE (-3)            /*!< No such queue */
1001 #define RES_NOT_DYNAMIC (-4)            /*!< Member is not dynamic */
1002
1003 static char *app = "Queue";
1004
1005 static char *app_aqm = "AddQueueMember" ;
1006
1007 static char *app_rqm = "RemoveQueueMember" ;
1008
1009 static char *app_pqm = "PauseQueueMember" ;
1010
1011 static char *app_upqm = "UnpauseQueueMember" ;
1012
1013 static char *app_ql = "QueueLog" ;
1014
1015 /*! \brief Persistent Members astdb family */
1016 static const char * const pm_family = "Queue/PersistentMembers";
1017 /* The maximum length of each persistent member queue database entry */
1018 #define PM_MAX_LEN 8192
1019
1020 /*! \brief queues.conf [general] option */
1021 static int queue_persistent_members = 0;
1022
1023 /*! \brief queues.conf per-queue weight option */
1024 static int use_weight = 0;
1025
1026 /*! \brief queues.conf [general] option */
1027 static int autofill_default = 1;
1028
1029 /*! \brief queues.conf [general] option */
1030 static int montype_default = 0;
1031
1032 /*! \brief queues.conf [general] option */
1033 static int shared_lastcall = 1;
1034
1035 /*! \brief Subscription to device state change events */
1036 static struct ast_event_sub *device_state_sub;
1037
1038 /*! \brief queues.conf [general] option */
1039 static int update_cdr = 0;
1040
1041 /*! \brief queues.conf [general] option */
1042 static int negative_penalty_invalid = 0;
1043
1044 /*! \brief queues.conf [general] option */
1045 static int log_membername_as_agent = 0;
1046
1047 /*! \brief queues.conf [general] option */
1048 static int check_state_unknown = 0;
1049
1050 /*! \brief name of the ringinuse field in the realtime database */
1051 static char *realtime_ringinuse_field;
1052
1053 enum queue_result {
1054         QUEUE_UNKNOWN = 0,
1055         QUEUE_TIMEOUT = 1,
1056         QUEUE_JOINEMPTY = 2,
1057         QUEUE_LEAVEEMPTY = 3,
1058         QUEUE_JOINUNAVAIL = 4,
1059         QUEUE_LEAVEUNAVAIL = 5,
1060         QUEUE_FULL = 6,
1061         QUEUE_CONTINUE = 7,
1062 };
1063
1064 static const struct {
1065         enum queue_result id;
1066         char *text;
1067 } queue_results[] = {
1068         { QUEUE_UNKNOWN, "UNKNOWN" },
1069         { QUEUE_TIMEOUT, "TIMEOUT" },
1070         { QUEUE_JOINEMPTY,"JOINEMPTY" },
1071         { QUEUE_LEAVEEMPTY, "LEAVEEMPTY" },
1072         { QUEUE_JOINUNAVAIL, "JOINUNAVAIL" },
1073         { QUEUE_LEAVEUNAVAIL, "LEAVEUNAVAIL" },
1074         { QUEUE_FULL, "FULL" },
1075         { QUEUE_CONTINUE, "CONTINUE" },
1076 };
1077
1078 enum queue_timeout_priority {
1079         TIMEOUT_PRIORITY_APP,
1080         TIMEOUT_PRIORITY_CONF,
1081 };
1082
1083 /*! \brief We define a custom "local user" structure because we
1084  *  use it not only for keeping track of what is in use but
1085  *  also for keeping track of who we're dialing.
1086  *
1087  *  There are two "links" defined in this structure, q_next and call_next.
1088  *  q_next links ALL defined callattempt structures into a linked list. call_next is
1089  *  a link which allows for a subset of the callattempts to be traversed. This subset
1090  *  is used in wait_for_answer so that irrelevant callattempts are not traversed. This
1091  *  also is helpful so that queue logs are always accurate in the case where a call to 
1092  *  a member times out, especially if using the ringall strategy. 
1093 */
1094
1095 struct callattempt {
1096         struct callattempt *q_next;
1097         struct callattempt *call_next;
1098         struct ast_channel *chan;
1099         char interface[256];                    /*!< An Asterisk dial string (not a channel name) */
1100         int metric;
1101         time_t lastcall;
1102         struct call_queue *lastqueue;
1103         struct member *member;
1104         /*! Saved connected party info from an AST_CONTROL_CONNECTED_LINE. */
1105         struct ast_party_connected_line connected;
1106         /*! TRUE if an AST_CONTROL_CONNECTED_LINE update was saved to the connected element. */
1107         unsigned int pending_connected_update:1;
1108         /*! TRUE if the connected line update is blocked. */
1109         unsigned int block_connected_update:1;
1110         /*! TRUE if caller id is not available for connected line */
1111         unsigned int dial_callerid_absent:1;
1112         /*! TRUE if the call is still active */
1113         unsigned int stillgoing:1;
1114         struct ast_aoc_decoded *aoc_s_rate_list;
1115 };
1116
1117
1118 struct queue_ent {
1119         struct call_queue *parent;             /*!< What queue is our parent */
1120         char moh[MAX_MUSICCLASS];              /*!< Name of musiconhold to be used */
1121         char announce[PATH_MAX];               /*!< Announcement to play for member when call is answered */
1122         char context[AST_MAX_CONTEXT];         /*!< Context when user exits queue */
1123         char digits[AST_MAX_EXTENSION];        /*!< Digits entered while in queue */
1124         int valid_digits;                      /*!< Digits entered correspond to valid extension. Exited */
1125         int pos;                               /*!< Where we are in the queue */
1126         int prio;                              /*!< Our priority */
1127         int last_pos_said;                     /*!< Last position we told the user */
1128         int ring_when_ringing;                 /*!< Should we only use ring indication when a channel is ringing? */
1129         time_t last_periodic_announce_time;    /*!< The last time we played a periodic announcement */
1130         int last_periodic_announce_sound;      /*!< The last periodic announcement we made */
1131         time_t last_pos;                       /*!< Last time we told the user their position */
1132         int opos;                              /*!< Where we started in the queue */
1133         int handled;                           /*!< Whether our call was handled */
1134         int pending;                           /*!< Non-zero if we are attempting to call a member */
1135         int max_penalty;                       /*!< Limit the members that can take this call to this penalty or lower */
1136         int min_penalty;                       /*!< Limit the members that can take this call to this penalty or higher */
1137         int linpos;                            /*!< If using linear strategy, what position are we at? */
1138         int linwrapped;                        /*!< Is the linpos wrapped? */
1139         time_t start;                          /*!< When we started holding */
1140         time_t expire;                         /*!< When this entry should expire (time out of queue) */
1141         int cancel_answered_elsewhere;         /*!< Whether we should force the CAE flag on this call (C) option*/
1142         struct ast_channel *chan;              /*!< Our channel */
1143         AST_LIST_HEAD_NOLOCK(,penalty_rule) qe_rules; /*!< Local copy of the queue's penalty rules */
1144         struct penalty_rule *pr;               /*!< Pointer to the next penalty rule to implement */
1145         struct queue_ent *next;                /*!< The next queue entry */
1146 };
1147
1148 struct member {
1149         char interface[AST_CHANNEL_NAME];    /*!< Technology/Location to dial to reach this member*/
1150         char state_exten[AST_MAX_EXTENSION]; /*!< Extension to get state from (if using hint) */
1151         char state_context[AST_MAX_CONTEXT]; /*!< Context to use when getting state (if using hint) */
1152         char state_interface[AST_CHANNEL_NAME]; /*!< Technology/Location from which to read devicestate changes */
1153         char membername[80];                 /*!< Member name to use in queue logs */
1154         int penalty;                         /*!< Are we a last resort? */
1155         int calls;                           /*!< Number of calls serviced by this member */
1156         int dynamic;                         /*!< Are we dynamically added? */
1157         int realtime;                        /*!< Is this member realtime? */
1158         int status;                          /*!< Status of queue member */
1159         int paused;                          /*!< Are we paused (not accepting calls)? */
1160         time_t lastcall;                     /*!< When last successful call was hungup */
1161         struct call_queue *lastqueue;        /*!< Last queue we received a call */
1162         unsigned int dead:1;                 /*!< Used to detect members deleted in realtime */
1163         unsigned int delme:1;                /*!< Flag to delete entry on reload */
1164         char rt_uniqueid[80];                /*!< Unique id of realtime member entry */
1165         unsigned int ringinuse:1;            /*!< Flag to ring queue members even if their status is 'inuse' */
1166 };
1167
1168 enum empty_conditions {
1169         QUEUE_EMPTY_PENALTY = (1 << 0),
1170         QUEUE_EMPTY_PAUSED = (1 << 1),
1171         QUEUE_EMPTY_INUSE = (1 << 2),
1172         QUEUE_EMPTY_RINGING = (1 << 3),
1173         QUEUE_EMPTY_UNAVAILABLE = (1 << 4),
1174         QUEUE_EMPTY_INVALID = (1 << 5),
1175         QUEUE_EMPTY_UNKNOWN = (1 << 6),
1176         QUEUE_EMPTY_WRAPUP = (1 << 7),
1177 };
1178
1179 enum member_properties {
1180         MEMBER_PENALTY = 0,
1181         MEMBER_RINGINUSE = 1,
1182 };
1183
1184 /* values used in multi-bit flags in call_queue */
1185 #define ANNOUNCEHOLDTIME_ALWAYS 1
1186 #define ANNOUNCEHOLDTIME_ONCE 2
1187 #define QUEUE_EVENT_VARIABLES 3
1188
1189 struct penalty_rule {
1190         int time;                           /*!< Number of seconds that need to pass before applying this rule */
1191         int max_value;                      /*!< The amount specified in the penalty rule for max penalty */
1192         int min_value;                      /*!< The amount specified in the penalty rule for min penalty */
1193         int max_relative;                   /*!< Is the max adjustment relative? 1 for relative, 0 for absolute */
1194         int min_relative;                   /*!< Is the min adjustment relative? 1 for relative, 0 for absolute */
1195         AST_LIST_ENTRY(penalty_rule) list;  /*!< Next penalty_rule */
1196 };
1197
1198 #define ANNOUNCEPOSITION_YES 1 /*!< We announce position */
1199 #define ANNOUNCEPOSITION_NO 2 /*!< We don't announce position */
1200 #define ANNOUNCEPOSITION_MORE_THAN 3 /*!< We say "Currently there are more than <limit>" */
1201 #define ANNOUNCEPOSITION_LIMIT 4 /*!< We not announce position more than <limit> */
1202
1203 struct call_queue {
1204         AST_DECLARE_STRING_FIELDS(
1205                 /*! Queue name */
1206                 AST_STRING_FIELD(name);
1207                 /*! Music on Hold class */
1208                 AST_STRING_FIELD(moh);
1209                 /*! Announcement to play when call is answered */
1210                 AST_STRING_FIELD(announce);
1211                 /*! Exit context */
1212                 AST_STRING_FIELD(context);
1213                 /*! Macro to run upon member connection */
1214                 AST_STRING_FIELD(membermacro);
1215                 /*! Gosub to run upon member connection */
1216                 AST_STRING_FIELD(membergosub);
1217                 /*! Default rule to use if none specified in call to Queue() */
1218                 AST_STRING_FIELD(defaultrule);
1219                 /*! Sound file: "Your call is now first in line" (def. queue-youarenext) */
1220                 AST_STRING_FIELD(sound_next);
1221                 /*! Sound file: "There are currently" (def. queue-thereare) */
1222                 AST_STRING_FIELD(sound_thereare);
1223                 /*! Sound file: "calls waiting to speak to a representative." (def. queue-callswaiting) */
1224                 AST_STRING_FIELD(sound_calls);
1225                 /*! Sound file: "Currently there are more than" (def. queue-quantity1) */
1226                 AST_STRING_FIELD(queue_quantity1);
1227                 /*! Sound file: "callers waiting to speak with a representative" (def. queue-quantity2) */
1228                 AST_STRING_FIELD(queue_quantity2);
1229                 /*! Sound file: "The current estimated total holdtime is" (def. queue-holdtime) */
1230                 AST_STRING_FIELD(sound_holdtime);
1231                 /*! Sound file: "minutes." (def. queue-minutes) */
1232                 AST_STRING_FIELD(sound_minutes);
1233                 /*! Sound file: "minute." (def. queue-minute) */
1234                 AST_STRING_FIELD(sound_minute);
1235                 /*! Sound file: "seconds." (def. queue-seconds) */
1236                 AST_STRING_FIELD(sound_seconds);
1237                 /*! Sound file: "Thank you for your patience." (def. queue-thankyou) */
1238                 AST_STRING_FIELD(sound_thanks);
1239                 /*! Sound file: Custom announce for caller, no default */
1240                 AST_STRING_FIELD(sound_callerannounce);
1241                 /*! Sound file: "Hold time" (def. queue-reporthold) */
1242                 AST_STRING_FIELD(sound_reporthold);
1243         );
1244         /*! Sound files: Custom announce, no default */
1245         struct ast_str *sound_periodicannounce[MAX_PERIODIC_ANNOUNCEMENTS];
1246         unsigned int dead:1;
1247         unsigned int eventwhencalled:2;
1248         unsigned int ringinuse:1;
1249         unsigned int setinterfacevar:1;
1250         unsigned int setqueuevar:1;
1251         unsigned int setqueueentryvar:1;
1252         unsigned int reportholdtime:1;
1253         unsigned int wrapped:1;
1254         unsigned int timeoutrestart:1;
1255         unsigned int announceholdtime:2;
1256         unsigned int announceposition:3;
1257         int strategy:4;
1258         unsigned int maskmemberstatus:1;
1259         unsigned int realtime:1;
1260         unsigned int found:1;
1261         unsigned int relativeperiodicannounce:1;
1262         unsigned int autopausebusy:1;
1263         unsigned int autopauseunavail:1;
1264         enum empty_conditions joinempty;
1265         enum empty_conditions leavewhenempty;
1266         int announcepositionlimit;          /*!< How many positions we announce? */
1267         int announcefrequency;              /*!< How often to announce their position */
1268         int minannouncefrequency;           /*!< The minimum number of seconds between position announcements (def. 15) */
1269         int periodicannouncefrequency;      /*!< How often to play periodic announcement */
1270         int numperiodicannounce;            /*!< The number of periodic announcements configured */
1271         int randomperiodicannounce;         /*!< Are periodic announcments randomly chosen */
1272         int roundingseconds;                /*!< How many seconds do we round to? */
1273         int holdtime;                       /*!< Current avg holdtime, based on an exponential average */
1274         int talktime;                       /*!< Current avg talktime, based on the same exponential average */
1275         int callscompleted;                 /*!< Number of queue calls completed */
1276         int callsabandoned;                 /*!< Number of queue calls abandoned */
1277         int servicelevel;                   /*!< seconds setting for servicelevel*/
1278         int callscompletedinsl;             /*!< Number of calls answered with servicelevel*/
1279         char monfmt[8];                     /*!< Format to use when recording calls */
1280         int montype;                        /*!< Monitor type  Monitor vs. MixMonitor */
1281         int count;                          /*!< How many entries */
1282         int maxlen;                         /*!< Max number of entries */
1283         int wrapuptime;                     /*!< Wrapup Time */
1284         int penaltymemberslimit;            /*!< Disregard penalty when queue has fewer than this many members */
1285
1286         int retry;                          /*!< Retry calling everyone after this amount of time */
1287         int timeout;                        /*!< How long to wait for an answer */
1288         int weight;                         /*!< Respective weight */
1289         int autopause;                      /*!< Auto pause queue members if they fail to answer */
1290         int autopausedelay;                 /*!< Delay auto pause for autopausedelay seconds since last call */
1291         int timeoutpriority;                /*!< Do we allow a fraction of the timeout to occur for a ring? */
1292
1293         /* Queue strategy things */
1294         int rrpos;                          /*!< Round Robin - position */
1295         int memberdelay;                    /*!< Seconds to delay connecting member to caller */
1296         int autofill;                       /*!< Ignore the head call status and ring an available agent */
1297         
1298         struct ao2_container *members;             /*!< Head of the list of members */
1299         struct queue_ent *head;             /*!< Head of the list of callers */
1300         AST_LIST_ENTRY(call_queue) list;    /*!< Next call queue */
1301         AST_LIST_HEAD_NOLOCK(, penalty_rule) rules; /*!< The list of penalty rules to invoke */
1302 };
1303
1304 struct rule_list {
1305         char name[80];
1306         AST_LIST_HEAD_NOLOCK(,penalty_rule) rules;
1307         AST_LIST_ENTRY(rule_list) list;
1308 };
1309
1310 static AST_LIST_HEAD_STATIC(rule_lists, rule_list);
1311
1312 static struct ao2_container *queues;
1313
1314 static void update_realtime_members(struct call_queue *q);
1315 static struct member *interface_exists(struct call_queue *q, const char *interface);
1316 static int set_member_paused(const char *queuename, const char *interface, const char *reason, int paused);
1317
1318 static void queue_transfer_fixup(void *data, struct ast_channel *old_chan, struct ast_channel *new_chan);
1319
1320 static struct member *find_member_by_queuename_and_interface(const char *queuename, const char *interface);
1321 /*! \brief sets the QUEUESTATUS channel variable */
1322 static void set_queue_result(struct ast_channel *chan, enum queue_result res)
1323 {
1324         int i;
1325
1326         for (i = 0; i < ARRAY_LEN(queue_results); i++) {
1327                 if (queue_results[i].id == res) {
1328                         pbx_builtin_setvar_helper(chan, "QUEUESTATUS", queue_results[i].text);
1329                         return;
1330                 }
1331         }
1332 }
1333
1334 static const char *int2strat(int strategy)
1335 {
1336         int x;
1337
1338         for (x = 0; x < ARRAY_LEN(strategies); x++) {
1339                 if (strategy == strategies[x].strategy) {
1340                         return strategies[x].name;
1341                 }
1342         }
1343
1344         return "<unknown>";
1345 }
1346
1347 static int strat2int(const char *strategy)
1348 {
1349         int x;
1350
1351         for (x = 0; x < ARRAY_LEN(strategies); x++) {
1352                 if (!strcasecmp(strategy, strategies[x].name)) {
1353                         return strategies[x].strategy;
1354                 }
1355         }
1356
1357         return -1;
1358 }
1359
1360 static int autopause2int(const char *autopause)
1361 {
1362         int x;
1363         /*This 'double check' that default value is OFF */
1364         if (ast_strlen_zero(autopause)) {
1365                 return QUEUE_AUTOPAUSE_OFF;
1366         }
1367
1368         /*This 'double check' is to ensure old values works */
1369         if(ast_true(autopause)) {
1370                 return QUEUE_AUTOPAUSE_ON;
1371         }
1372
1373         for (x = 0; x < ARRAY_LEN(autopausesmodes); x++) {
1374                 if (!strcasecmp(autopause, autopausesmodes[x].name)) {
1375                         return autopausesmodes[x].autopause;
1376                 }
1377         }
1378
1379         /*This 'double check' that default value is OFF */
1380         return QUEUE_AUTOPAUSE_OFF;
1381 }
1382
1383 static int queue_hash_cb(const void *obj, const int flags)
1384 {
1385         const struct call_queue *q = obj;
1386
1387         return ast_str_case_hash(q->name);
1388 }
1389
1390 static int queue_cmp_cb(void *obj, void *arg, int flags)
1391 {
1392         struct call_queue *q = obj, *q2 = arg;
1393         return !strcasecmp(q->name, q2->name) ? CMP_MATCH | CMP_STOP : 0;
1394 }
1395
1396 #ifdef REF_DEBUG_ONLY_QUEUES
1397 #define queue_ref(q)                            _queue_ref(q, "", __FILE__, __LINE__, __PRETTY_FUNCTION__)
1398 #define queue_unref(q)                          _queue_unref(q, "", __FILE__, __LINE__, __PRETTY_FUNCTION__)
1399 #define queue_t_ref(q, tag)                     _queue_ref(q, tag, __FILE__, __LINE__, __PRETTY_FUNCTION__)
1400 #define queue_t_unref(q, tag)           _queue_unref(q, tag, __FILE__, __LINE__, __PRETTY_FUNCTION__)
1401 #define queues_t_link(c, q, tag)        __ao2_link_debug(c, q, 0, tag, __FILE__, __LINE__, __PRETTY_FUNCTION__)
1402 #define queues_t_unlink(c, q, tag)      __ao2_unlink_debug(c, q, 0, tag, __FILE__, __LINE__, __PRETTY_FUNCTION__)
1403
1404 static inline struct call_queue *_queue_ref(struct call_queue *q, const char *tag, const char *file, int line, const char *filename)
1405 {
1406         __ao2_ref_debug(q, 1, tag, file, line, filename);
1407         return q;
1408 }
1409
1410 static inline struct call_queue *_queue_unref(struct call_queue *q, const char *tag, const char *file, int line, const char *filename)
1411 {
1412         __ao2_ref_debug(q, -1, tag, file, line, filename);
1413         return NULL;
1414 }
1415
1416 #else
1417
1418 #define queue_t_ref(q, tag)                     queue_ref(q)
1419 #define queue_t_unref(q, tag)           queue_unref(q)
1420 #define queues_t_link(c, q, tag)        ao2_t_link(c, q, tag)
1421 #define queues_t_unlink(c, q, tag)      ao2_t_unlink(c, q, tag)
1422
1423 static inline struct call_queue *queue_ref(struct call_queue *q)
1424 {
1425         ao2_ref(q, 1);
1426         return q;
1427 }
1428
1429 static inline struct call_queue *queue_unref(struct call_queue *q)
1430 {
1431         ao2_ref(q, -1);
1432         return NULL;
1433 }
1434 #endif
1435
1436 /*! \brief Set variables of queue */
1437 static void set_queue_variables(struct call_queue *q, struct ast_channel *chan)
1438 {
1439         char interfacevar[256]="";
1440         float sl = 0;
1441
1442         ao2_lock(q);
1443
1444         if (q->setqueuevar) {
1445                 sl = 0;
1446                 if (q->callscompleted > 0) {
1447                         sl = 100 * ((float) q->callscompletedinsl / (float) q->callscompleted);
1448                 }
1449
1450                 snprintf(interfacevar, sizeof(interfacevar),
1451                         "QUEUENAME=%s,QUEUEMAX=%d,QUEUESTRATEGY=%s,QUEUECALLS=%d,QUEUEHOLDTIME=%d,QUEUETALKTIME=%d,QUEUECOMPLETED=%d,QUEUEABANDONED=%d,QUEUESRVLEVEL=%d,QUEUESRVLEVELPERF=%2.1f",
1452                         q->name, q->maxlen, int2strat(q->strategy), q->count, q->holdtime, q->talktime, q->callscompleted, q->callsabandoned,  q->servicelevel, sl);
1453
1454                 ao2_unlock(q);
1455         
1456                 pbx_builtin_setvar_multiple(chan, interfacevar); 
1457         } else {
1458                 ao2_unlock(q);
1459         }
1460 }
1461
1462 /*! \brief Insert the 'new' entry after the 'prev' entry of queue 'q' */
1463 static inline void insert_entry(struct call_queue *q, struct queue_ent *prev, struct queue_ent *new, int *pos)
1464 {
1465         struct queue_ent *cur;
1466
1467         if (!q || !new)
1468                 return;
1469         if (prev) {
1470                 cur = prev->next;
1471                 prev->next = new;
1472         } else {
1473                 cur = q->head;
1474                 q->head = new;
1475         }
1476         new->next = cur;
1477
1478         /* every queue_ent must have a reference to it's parent call_queue, this
1479          * reference does not go away until the end of the queue_ent's life, meaning
1480          * that even when the queue_ent leaves the call_queue this ref must remain. */
1481         queue_ref(q);
1482         new->parent = q;
1483         new->pos = ++(*pos);
1484         new->opos = *pos;
1485 }
1486
1487 /*! \brief Check if members are available
1488  *
1489  * This function checks to see if members are available to be called. If any member
1490  * is available, the function immediately returns 0. If no members are available,
1491  * then -1 is returned.
1492  */
1493 static int get_member_status(struct call_queue *q, int max_penalty, int min_penalty, enum empty_conditions conditions)
1494 {
1495         struct member *member;
1496         struct ao2_iterator mem_iter;
1497
1498         ao2_lock(q);
1499         mem_iter = ao2_iterator_init(q->members, 0);
1500         for (; (member = ao2_iterator_next(&mem_iter)); ao2_ref(member, -1)) {
1501                 if ((max_penalty && (member->penalty > max_penalty)) || (min_penalty && (member->penalty < min_penalty))) {
1502                         if (conditions & QUEUE_EMPTY_PENALTY) {
1503                                 ast_debug(4, "%s is unavailable because his penalty is not between %d and %d\n", member->membername, min_penalty, max_penalty);
1504                                 continue;
1505                         }
1506                 }
1507
1508                 switch (member->status) {
1509                 case AST_DEVICE_INVALID:
1510                         if (conditions & QUEUE_EMPTY_INVALID) {
1511                                 ast_debug(4, "%s is unavailable because his device state is 'invalid'\n", member->membername);
1512                                 break;
1513                         }
1514                         goto default_case;
1515                 case AST_DEVICE_UNAVAILABLE:
1516                         if (conditions & QUEUE_EMPTY_UNAVAILABLE) {
1517                                 ast_debug(4, "%s is unavailable because his device state is 'unavailable'\n", member->membername);
1518                                 break;
1519                         }
1520                         goto default_case;
1521                 case AST_DEVICE_INUSE:
1522                         if (conditions & QUEUE_EMPTY_INUSE) {
1523                                 ast_debug(4, "%s is unavailable because his device state is 'inuse'\n", member->membername);
1524                                 break;
1525                         }
1526                         goto default_case;
1527                 case AST_DEVICE_RINGING:
1528                         if (conditions & QUEUE_EMPTY_RINGING) {
1529                                 ast_debug(4, "%s is unavailable because his device state is 'ringing'\n", member->membername);
1530                                 break;
1531                         }
1532                         goto default_case;
1533                 case AST_DEVICE_UNKNOWN:
1534                         if (conditions & QUEUE_EMPTY_UNKNOWN) {
1535                                 ast_debug(4, "%s is unavailable because his device state is 'unknown'\n", member->membername);
1536                                 break;
1537                         }
1538                         /* Fall-through */
1539                 default:
1540                 default_case:
1541                         if (member->paused && (conditions & QUEUE_EMPTY_PAUSED)) {
1542                                 ast_debug(4, "%s is unavailable because he is paused'\n", member->membername);
1543                                 break;
1544                         } else if ((conditions & QUEUE_EMPTY_WRAPUP) && member->lastcall && q->wrapuptime && (time(NULL) - q->wrapuptime < member->lastcall)) {
1545                                 ast_debug(4, "%s is unavailable because it has only been %d seconds since his last call (wrapup time is %d)\n", member->membername, (int) (time(NULL) - member->lastcall), q->wrapuptime);
1546                                 break;
1547                         } else {
1548                                 ao2_ref(member, -1);
1549                                 ao2_iterator_destroy(&mem_iter);
1550                                 ao2_unlock(q);
1551                                 ast_debug(4, "%s is available.\n", member->membername);
1552                                 return 0;
1553                         }
1554                         break;
1555                 }
1556         }
1557         ao2_iterator_destroy(&mem_iter);
1558
1559         ao2_unlock(q);
1560         return -1;
1561 }
1562
1563 struct statechange {
1564         AST_LIST_ENTRY(statechange) entry;
1565         int state;
1566         char dev[0];
1567 };
1568
1569 /*! \brief set a member's status based on device state of that member's state_interface.
1570  *
1571  * Lock interface list find sc, iterate through each queues queue_member list for member to
1572  * update state inside queues
1573 */
1574 static int update_status(struct call_queue *q, struct member *m, const int status)
1575 {
1576         m->status = status;
1577
1578         if (q->maskmemberstatus) {
1579                 return 0;
1580         }
1581
1582         /*** DOCUMENTATION
1583         <managerEventInstance>
1584                 <synopsis>Raised when a Queue member's status has changed.</synopsis>
1585                 <syntax>
1586                         <parameter name="Queue">
1587                                 <para>The name of the queue.</para>
1588                         </parameter>
1589                         <parameter name="Location">
1590                                 <para>The queue member's channel technology or location.</para>
1591                         </parameter>
1592                         <parameter name="MemberName">
1593                                 <para>The name of the queue member.</para>
1594                         </parameter>
1595                         <parameter name="StateInterface">
1596                                 <para>Channel technology or location from which to read device state changes.</para>
1597                         </parameter>
1598                         <parameter name="Membership">
1599                                 <enumlist>
1600                                         <enum name="dynamic"/>
1601                                         <enum name="realtime"/>
1602                                         <enum name="static"/>
1603                                 </enumlist>
1604                         </parameter>
1605                         <parameter name="Penalty">
1606                                 <para>The penalty associated with the queue member.</para>
1607                         </parameter>
1608                         <parameter name="CallsTaken">
1609                                 <para>The number of calls this queue member has serviced.</para>
1610                         </parameter>
1611                         <parameter name="LastCall">
1612                                 <para>The time this member last took call, expressed in seconds since 00:00, Jan 1, 1970 UTC.</para>
1613                         </parameter>
1614                         <parameter name="Status">
1615                                 <para>The numeric device state status of the queue member.</para>
1616                                 <enumlist>
1617                                         <enum name="0"><para>AST_DEVICE_UNKNOWN</para></enum>
1618                                         <enum name="1"><para>AST_DEVICE_NOT_INUSE</para></enum>
1619                                         <enum name="2"><para>AST_DEVICE_INUSE</para></enum>
1620                                         <enum name="3"><para>AST_DEVICE_BUSY</para></enum>
1621                                         <enum name="4"><para>AST_DEVICE_INVALID</para></enum>
1622                                         <enum name="5"><para>AST_DEVICE_UNAVAILABLE</para></enum>
1623                                         <enum name="6"><para>AST_DEVICE_RINGING</para></enum>
1624                                         <enum name="7"><para>AST_DEVICE_RINGINUSE</para></enum>
1625                                         <enum name="8"><para>AST_DEVICE_ONHOLD</para></enum>
1626                                 </enumlist>
1627                         </parameter>
1628                         <parameter name="Paused">
1629                                 <enumlist>
1630                                         <enum name="0"/>
1631                                         <enum name="1"/>
1632                                 </enumlist>
1633                         </parameter>
1634                 </syntax>
1635         </managerEventInstance>
1636         ***/
1637         manager_event(EVENT_FLAG_AGENT, "QueueMemberStatus",
1638                 "Queue: %s\r\n"
1639                 "Location: %s\r\n"
1640                 "MemberName: %s\r\n"
1641                 "StateInterface: %s\r\n"
1642                 "Membership: %s\r\n"
1643                 "Penalty: %d\r\n"
1644                 "CallsTaken: %d\r\n"
1645                 "LastCall: %d\r\n"
1646                 "Status: %d\r\n"
1647                 "Paused: %d\r\n",
1648                 q->name, m->interface, m->membername, m->state_interface, m->dynamic ? "dynamic" : m->realtime ? "realtime" : "static",
1649                 m->penalty, m->calls, (int)m->lastcall, m->status, m->paused
1650         );
1651
1652         return 0;
1653 }
1654
1655 /*!
1656  * \internal \brief Determine if a queue member is available
1657  * \retval 1 if the member is available
1658  * \retval 0 if the member is not available
1659  */
1660 static int is_member_available(struct member *mem)
1661 {
1662         int available = 0;
1663
1664         switch (mem->status) {
1665                 case AST_DEVICE_INVALID:
1666                 case AST_DEVICE_UNAVAILABLE:
1667                         break;
1668                 case AST_DEVICE_INUSE:
1669                 case AST_DEVICE_BUSY:
1670                 case AST_DEVICE_RINGING:
1671                 case AST_DEVICE_RINGINUSE:
1672                 case AST_DEVICE_ONHOLD:
1673                         if (!mem->ringinuse) {
1674                                 break;
1675                         }
1676                         /* else fall through */
1677                 case AST_DEVICE_NOT_INUSE:
1678                 case AST_DEVICE_UNKNOWN:
1679                         if (!mem->paused) {
1680                                 available = 1;
1681                         }
1682                         break;
1683         }
1684
1685         return available;
1686 }
1687
1688 /*! \brief set a member's status based on device state of that member's interface*/
1689 static int handle_statechange(void *datap)
1690 {
1691         struct statechange *sc = datap;
1692         struct ao2_iterator miter, qiter;
1693         struct member *m;
1694         struct call_queue *q;
1695         char interface[80], *slash_pos;
1696         int found = 0;                  /* Found this member in any queue */
1697         int found_member;               /* Found this member in this queue */
1698         int avail = 0;                  /* Found an available member in this queue */
1699
1700         qiter = ao2_iterator_init(queues, 0);
1701         while ((q = ao2_t_iterator_next(&qiter, "Iterate over queues"))) {
1702                 ao2_lock(q);
1703
1704                 avail = 0;
1705                 found_member = 0;
1706                 miter = ao2_iterator_init(q->members, 0);
1707                 for (; (m = ao2_iterator_next(&miter)); ao2_ref(m, -1)) {
1708                         if (!found_member) {
1709                                 ast_copy_string(interface, m->state_interface, sizeof(interface));
1710
1711                                 if ((slash_pos = strchr(interface, '/'))) {
1712                                         if (!strncasecmp(interface, "Local/", 6) && (slash_pos = strchr(slash_pos + 1, '/'))) {
1713                                                 *slash_pos = '\0';
1714                                         }
1715                                 }
1716
1717                                 if (!strcasecmp(interface, sc->dev)) {
1718                                         found_member = 1;
1719                                         update_status(q, m, sc->state);
1720                                 }
1721                         }
1722
1723                         /* check every member until we find one NOT_INUSE */
1724                         if (!avail) {
1725                                 avail = is_member_available(m);
1726                         }
1727                         if (avail && found_member) {
1728                                 /* early exit as we've found an available member and the member of interest */
1729                                 ao2_ref(m, -1);
1730                                 break;
1731                         }
1732                 }
1733
1734                 if (found_member) {
1735                         found = 1;
1736                         if (avail) {
1737                                 ast_devstate_changed(AST_DEVICE_NOT_INUSE, "Queue:%s_avail", q->name);
1738                         } else {
1739                                 ast_devstate_changed(AST_DEVICE_INUSE, "Queue:%s_avail", q->name);
1740                         }
1741                 }
1742
1743                 ao2_iterator_destroy(&miter);
1744
1745                 ao2_unlock(q);
1746                 queue_t_unref(q, "Done with iterator");
1747         }
1748         ao2_iterator_destroy(&qiter);
1749
1750         if (found) {
1751                 ast_debug(1, "Device '%s' changed to state '%d' (%s)\n", sc->dev, sc->state, ast_devstate2str(sc->state));
1752         } else {
1753                 ast_debug(3, "Device '%s' changed to state '%d' (%s) but we don't care because they're not a member of any queue.\n", sc->dev, sc->state, ast_devstate2str(sc->state));
1754         }
1755
1756         ast_free(sc);
1757         return 0;
1758 }
1759
1760 static void device_state_cb(const struct ast_event *event, void *unused)
1761 {
1762         enum ast_device_state state;
1763         const char *device;
1764         struct statechange *sc;
1765         size_t datapsize;
1766
1767         state = ast_event_get_ie_uint(event, AST_EVENT_IE_STATE);
1768         device = ast_event_get_ie_str(event, AST_EVENT_IE_DEVICE);
1769
1770         if (ast_strlen_zero(device)) {
1771                 ast_log(LOG_ERROR, "Received invalid event that had no device IE\n");
1772                 return;
1773         }
1774         datapsize = sizeof(*sc) + strlen(device) + 1;
1775         if (!(sc = ast_calloc(1, datapsize))) {
1776                 ast_log(LOG_ERROR, "failed to calloc a state change struct\n");
1777                 return;
1778         }
1779         sc->state = state;
1780         strcpy(sc->dev, device);
1781         if (ast_taskprocessor_push(devicestate_tps, handle_statechange, sc) < 0) {
1782                 ast_free(sc);
1783         }
1784 }
1785
1786 /*! \brief Helper function which converts from extension state to device state values */
1787 static int extensionstate2devicestate(int state)
1788 {
1789         switch (state) {
1790         case AST_EXTENSION_NOT_INUSE:
1791                 state = AST_DEVICE_NOT_INUSE;
1792                 break;
1793         case AST_EXTENSION_INUSE:
1794                 state = AST_DEVICE_INUSE;
1795                 break;
1796         case AST_EXTENSION_BUSY:
1797                 state = AST_DEVICE_BUSY;
1798                 break;
1799         case AST_EXTENSION_RINGING:
1800                 state = AST_DEVICE_RINGING;
1801                 break;
1802         case AST_EXTENSION_ONHOLD:
1803                 state = AST_DEVICE_ONHOLD;
1804                 break;
1805         case AST_EXTENSION_UNAVAILABLE:
1806                 state = AST_DEVICE_UNAVAILABLE;
1807                 break;
1808         case AST_EXTENSION_REMOVED:
1809         case AST_EXTENSION_DEACTIVATED:
1810         default:
1811                 state = AST_DEVICE_INVALID;
1812                 break;
1813         }
1814
1815         return state;
1816 }
1817
1818 static int extension_state_cb(char *context, char *exten, struct ast_state_cb_info *info, void *data)
1819 {
1820         struct ao2_iterator miter, qiter;
1821         struct member *m;
1822         struct call_queue *q;
1823         int state = info->exten_state;
1824         int found = 0, device_state = extensionstate2devicestate(state);
1825
1826         /* only interested in extension state updates involving device states */
1827         if (info->reason != AST_HINT_UPDATE_DEVICE) {
1828                 return 0;
1829         }
1830
1831         qiter = ao2_iterator_init(queues, 0);
1832         while ((q = ao2_t_iterator_next(&qiter, "Iterate through queues"))) {
1833                 ao2_lock(q);
1834
1835                 miter = ao2_iterator_init(q->members, 0);
1836                 for (; (m = ao2_iterator_next(&miter)); ao2_ref(m, -1)) {
1837                         if (!strcmp(m->state_context, context) && !strcmp(m->state_exten, exten)) {
1838                                 update_status(q, m, device_state);
1839                                 ao2_ref(m, -1);
1840                                 found = 1;
1841                                 break;
1842                         }
1843                 }
1844                 ao2_iterator_destroy(&miter);
1845
1846                 ao2_unlock(q);
1847                 queue_t_unref(q, "Done with iterator");
1848         }
1849         ao2_iterator_destroy(&qiter);
1850
1851         if (found) {
1852                 ast_debug(1, "Extension '%s@%s' changed to state '%d' (%s)\n", exten, context, device_state, ast_devstate2str(device_state));
1853         } else {
1854                 ast_debug(3, "Extension '%s@%s' changed to state '%d' (%s) but we don't care because they're not a member of any queue.\n",
1855                           exten, context, device_state, ast_devstate2str(device_state));
1856         }
1857
1858         return 0;
1859 }
1860
1861 /*! \brief Return the current state of a member */
1862 static int get_queue_member_status(struct member *cur)
1863 {
1864         return ast_strlen_zero(cur->state_exten) ? ast_device_state(cur->state_interface) : extensionstate2devicestate(ast_extension_state(NULL, cur->state_context, cur->state_exten));
1865 }
1866
1867 /*! \brief allocate space for new queue member and set fields based on parameters passed */
1868 static struct member *create_queue_member(const char *interface, const char *membername, int penalty, int paused, const char *state_interface, int ringinuse)
1869 {
1870         struct member *cur;
1871
1872         if ((cur = ao2_alloc(sizeof(*cur), NULL))) {
1873                 cur->ringinuse = ringinuse;
1874                 cur->penalty = penalty;
1875                 cur->paused = paused;
1876                 ast_copy_string(cur->interface, interface, sizeof(cur->interface));
1877                 if (!ast_strlen_zero(state_interface)) {
1878                         ast_copy_string(cur->state_interface, state_interface, sizeof(cur->state_interface));
1879                 } else {
1880                         ast_copy_string(cur->state_interface, interface, sizeof(cur->state_interface));
1881                 }
1882                 if (!ast_strlen_zero(membername)) {
1883                         ast_copy_string(cur->membername, membername, sizeof(cur->membername));
1884                 } else {
1885                         ast_copy_string(cur->membername, interface, sizeof(cur->membername));
1886                 }
1887                 if (!strchr(cur->interface, '/')) {
1888                         ast_log(LOG_WARNING, "No location at interface '%s'\n", interface);
1889                 }
1890                 if (!strncmp(cur->state_interface, "hint:", 5)) {
1891                         char *tmp = ast_strdupa(cur->state_interface), *context = tmp;
1892                         char *exten = strsep(&context, "@") + 5;
1893
1894                         ast_copy_string(cur->state_exten, exten, sizeof(cur->state_exten));
1895                         ast_copy_string(cur->state_context, S_OR(context, "default"), sizeof(cur->state_context));
1896                 }
1897                 cur->status = get_queue_member_status(cur);
1898         }
1899
1900         return cur;
1901 }
1902
1903
1904 static int compress_char(const char c)
1905 {
1906         if (c < 32) {
1907                 return 0;
1908         } else if (c > 96) {
1909                 return c - 64;
1910         } 
1911         return c - 32;
1912 }
1913
1914 static int member_hash_fn(const void *obj, const int flags)
1915 {
1916         const struct member *mem = obj;
1917         const char *interface = (flags & OBJ_KEY) ? obj : mem->interface;
1918         const char *chname = strchr(interface, '/');
1919         int ret = 0, i;
1920
1921         if (!chname) {
1922                 chname = interface;
1923         }
1924         for (i = 0; i < 5 && chname[i]; i++) {
1925                 ret += compress_char(chname[i]) << (i * 6);
1926         }
1927         return ret;
1928 }
1929
1930 static int member_cmp_fn(void *obj1, void *obj2, int flags)
1931 {
1932         struct member *mem1 = obj1;
1933         struct member *mem2 = obj2;
1934         const char *interface = (flags & OBJ_KEY) ? obj2 : mem2->interface;
1935
1936         return strcasecmp(mem1->interface, interface) ? 0 : CMP_MATCH | CMP_STOP;
1937 }
1938
1939 /*!
1940  * \brief Initialize Queue default values.
1941  * \note the queue's lock  must be held before executing this function
1942 */
1943 static void init_queue(struct call_queue *q)
1944 {
1945         int i;
1946         struct penalty_rule *pr_iter;
1947
1948         q->dead = 0;
1949         q->retry = DEFAULT_RETRY;
1950         q->timeout = DEFAULT_TIMEOUT;
1951         q->maxlen = 0;
1952         q->announcefrequency = 0;
1953         q->minannouncefrequency = DEFAULT_MIN_ANNOUNCE_FREQUENCY;
1954         q->announceholdtime = 1;
1955         q->announcepositionlimit = 10; /* Default 10 positions */
1956         q->announceposition = ANNOUNCEPOSITION_YES; /* Default yes */
1957         q->roundingseconds = 0; /* Default - don't announce seconds */
1958         q->servicelevel = 0;
1959         q->ringinuse = 1;
1960         q->setinterfacevar = 0;
1961         q->setqueuevar = 0;
1962         q->setqueueentryvar = 0;
1963         q->autofill = autofill_default;
1964         q->montype = montype_default;
1965         q->monfmt[0] = '\0';
1966         q->reportholdtime = 0;
1967         q->wrapuptime = 0;
1968         q->penaltymemberslimit = 0;
1969         q->joinempty = 0;
1970         q->leavewhenempty = 0;
1971         q->memberdelay = 0;
1972         q->maskmemberstatus = 0;
1973         q->eventwhencalled = 0;
1974         q->weight = 0;
1975         q->timeoutrestart = 0;
1976         q->periodicannouncefrequency = 0;
1977         q->randomperiodicannounce = 0;
1978         q->numperiodicannounce = 0;
1979         q->autopause = QUEUE_AUTOPAUSE_OFF;
1980         q->timeoutpriority = TIMEOUT_PRIORITY_APP;
1981         q->autopausedelay = 0;
1982         if (!q->members) {
1983                 if (q->strategy == QUEUE_STRATEGY_LINEAR || q->strategy == QUEUE_STRATEGY_RRORDERED) {
1984                         /* linear strategy depends on order, so we have to place all members in a single bucket */
1985                         q->members = ao2_container_alloc(1, member_hash_fn, member_cmp_fn);
1986                 } else {
1987                         q->members = ao2_container_alloc(37, member_hash_fn, member_cmp_fn);
1988                 }
1989         }
1990         q->found = 1;
1991
1992         ast_string_field_set(q, sound_next, "queue-youarenext");
1993         ast_string_field_set(q, sound_thereare, "queue-thereare");
1994         ast_string_field_set(q, sound_calls, "queue-callswaiting");
1995         ast_string_field_set(q, queue_quantity1, "queue-quantity1");
1996         ast_string_field_set(q, queue_quantity2, "queue-quantity2");
1997         ast_string_field_set(q, sound_holdtime, "queue-holdtime");
1998         ast_string_field_set(q, sound_minutes, "queue-minutes");
1999         ast_string_field_set(q, sound_minute, "queue-minute");
2000         ast_string_field_set(q, sound_seconds, "queue-seconds");
2001         ast_string_field_set(q, sound_thanks, "queue-thankyou");
2002         ast_string_field_set(q, sound_reporthold, "queue-reporthold");
2003
2004         if (!q->sound_periodicannounce[0]) {
2005                 q->sound_periodicannounce[0] = ast_str_create(32);
2006         }
2007
2008         if (q->sound_periodicannounce[0]) {
2009                 ast_str_set(&q->sound_periodicannounce[0], 0, "queue-periodic-announce");
2010         }
2011
2012         for (i = 1; i < MAX_PERIODIC_ANNOUNCEMENTS; i++) {
2013                 if (q->sound_periodicannounce[i]) {
2014                         ast_str_set(&q->sound_periodicannounce[i], 0, "%s", "");
2015                 }
2016         }
2017
2018         while ((pr_iter = AST_LIST_REMOVE_HEAD(&q->rules,list))) {
2019                 ast_free(pr_iter);
2020         }
2021
2022         /* On restart assume no members are available.
2023          * The queue_avail hint is a boolean state to indicate whether a member is available or not.
2024          *
2025          * This seems counter intuitive, but is required to light a BLF
2026          * AST_DEVICE_INUSE indicates no members are available.
2027          * AST_DEVICE_NOT_INUSE indicates a member is available.
2028          */
2029         ast_devstate_changed(AST_DEVICE_INUSE, "Queue:%s_avail", q->name);
2030 }
2031
2032 static void clear_queue(struct call_queue *q)
2033 {
2034         q->holdtime = 0;
2035         q->callscompleted = 0;
2036         q->callsabandoned = 0;
2037         q->callscompletedinsl = 0;
2038         q->talktime = 0;
2039
2040         if (q->members) {
2041                 struct member *mem;
2042                 struct ao2_iterator mem_iter = ao2_iterator_init(q->members, 0);
2043                 while ((mem = ao2_iterator_next(&mem_iter))) {
2044                         mem->calls = 0;
2045                         mem->lastcall = 0;
2046                         ao2_ref(mem, -1);
2047                 }
2048                 ao2_iterator_destroy(&mem_iter);
2049         }
2050 }
2051
2052 /*!
2053  * \brief Change queue penalty by adding rule.
2054  *
2055  * Check rule for errors with time or fomatting, see if rule is relative to rest
2056  * of queue, iterate list of rules to find correct insertion point, insert and return.
2057  * \retval -1 on failure
2058  * \retval 0 on success
2059  * \note Call this with the rule_lists locked
2060 */
2061 static int insert_penaltychange(const char *list_name, const char *content, const int linenum)
2062 {
2063         char *timestr, *maxstr, *minstr, *contentdup;
2064         struct penalty_rule *rule = NULL, *rule_iter;
2065         struct rule_list *rl_iter;
2066         int penaltychangetime, inserted = 0;
2067
2068         if (!(rule = ast_calloc(1, sizeof(*rule)))) {
2069                 return -1;
2070         }
2071
2072         contentdup = ast_strdupa(content);
2073         
2074         if (!(maxstr = strchr(contentdup, ','))) {
2075                 ast_log(LOG_WARNING, "Improperly formatted penaltychange rule at line %d. Ignoring.\n", linenum);
2076                 ast_free(rule);
2077                 return -1;
2078         }
2079
2080         *maxstr++ = '\0';
2081         timestr = contentdup;
2082
2083         if ((penaltychangetime = atoi(timestr)) < 0) {
2084                 ast_log(LOG_WARNING, "Improper time parameter specified for penaltychange rule at line %d. Ignoring.\n", linenum);
2085                 ast_free(rule);
2086                 return -1;
2087         }
2088
2089         rule->time = penaltychangetime;
2090
2091         if ((minstr = strchr(maxstr,','))) {
2092                 *minstr++ = '\0';
2093         }
2094         
2095         /* The last check will evaluate true if either no penalty change is indicated for a given rule
2096          * OR if a min penalty change is indicated but no max penalty change is */
2097         if (*maxstr == '+' || *maxstr == '-' || *maxstr == '\0') {
2098                 rule->max_relative = 1;
2099         }
2100
2101         rule->max_value = atoi(maxstr);
2102
2103         if (!ast_strlen_zero(minstr)) {
2104                 if (*minstr == '+' || *minstr == '-') {
2105                         rule->min_relative = 1;
2106                 }
2107                 rule->min_value = atoi(minstr);
2108         } else { /*there was no minimum specified, so assume this means no change*/
2109                 rule->min_relative = 1;
2110         }
2111
2112         /*We have the rule made, now we need to insert it where it belongs*/
2113         AST_LIST_TRAVERSE(&rule_lists, rl_iter, list){
2114                 if (strcasecmp(rl_iter->name, list_name)) {
2115                         continue;
2116                 }
2117
2118                 AST_LIST_TRAVERSE_SAFE_BEGIN(&rl_iter->rules, rule_iter, list) {
2119                         if (rule->time < rule_iter->time) {
2120                                 AST_LIST_INSERT_BEFORE_CURRENT(rule, list);
2121                                 inserted = 1;
2122                                 break;
2123                         }
2124                 }
2125                 AST_LIST_TRAVERSE_SAFE_END;
2126         
2127                 if (!inserted) {
2128                         AST_LIST_INSERT_TAIL(&rl_iter->rules, rule, list);
2129                         inserted = 1;
2130                 }
2131
2132                 break;
2133         }
2134
2135         if (!inserted) {
2136                 ast_log(LOG_WARNING, "Unknown rule list name %s; ignoring.\n", list_name);
2137                 ast_free(rule);
2138                 return -1;
2139         }
2140         return 0;
2141 }
2142
2143 static void parse_empty_options(const char *value, enum empty_conditions *empty, int joinempty)
2144 {
2145         char *value_copy = ast_strdupa(value);
2146         char *option = NULL;
2147         while ((option = strsep(&value_copy, ","))) {
2148                 if (!strcasecmp(option, "paused")) {
2149                         *empty |= QUEUE_EMPTY_PAUSED;
2150                 } else if (!strcasecmp(option, "penalty")) {
2151                         *empty |= QUEUE_EMPTY_PENALTY;
2152                 } else if (!strcasecmp(option, "inuse")) {
2153                         *empty |= QUEUE_EMPTY_INUSE;
2154                 } else if (!strcasecmp(option, "ringing")) {
2155                         *empty |= QUEUE_EMPTY_RINGING;
2156                 } else if (!strcasecmp(option, "invalid")) {
2157                         *empty |= QUEUE_EMPTY_INVALID;
2158                 } else if (!strcasecmp(option, "wrapup")) {
2159                         *empty |= QUEUE_EMPTY_WRAPUP;
2160                 } else if (!strcasecmp(option, "unavailable")) {
2161                         *empty |= QUEUE_EMPTY_UNAVAILABLE;
2162                 } else if (!strcasecmp(option, "unknown")) {
2163                         *empty |= QUEUE_EMPTY_UNKNOWN;
2164                 } else if (!strcasecmp(option, "loose")) {
2165                         *empty = (QUEUE_EMPTY_PENALTY | QUEUE_EMPTY_INVALID);
2166                 } else if (!strcasecmp(option, "strict")) {
2167                         *empty = (QUEUE_EMPTY_PENALTY | QUEUE_EMPTY_INVALID | QUEUE_EMPTY_PAUSED | QUEUE_EMPTY_UNAVAILABLE);
2168                 } else if ((ast_false(option) && joinempty) || (ast_true(option) && !joinempty)) {
2169                         *empty = (QUEUE_EMPTY_PENALTY | QUEUE_EMPTY_INVALID | QUEUE_EMPTY_PAUSED);
2170                 } else if ((ast_false(option) && !joinempty) || (ast_true(option) && joinempty)) {
2171                         *empty = 0;
2172                 } else {
2173                         ast_log(LOG_WARNING, "Unknown option %s for '%s'\n", option, joinempty ? "joinempty" : "leavewhenempty");
2174                 }
2175         }
2176 }
2177
2178 /*! \brief Configure a queue parameter.
2179  * 
2180  * The failunknown flag is set for config files (and static realtime) to show
2181  * errors for unknown parameters. It is cleared for dynamic realtime to allow
2182  *  extra fields in the tables.
2183  * \note For error reporting, line number is passed for .conf static configuration,
2184  * for Realtime queues, linenum is -1.
2185 */
2186 static void queue_set_param(struct call_queue *q, const char *param, const char *val, int linenum, int failunknown)
2187 {
2188         if (!strcasecmp(param, "musicclass") || 
2189                 !strcasecmp(param, "music") || !strcasecmp(param, "musiconhold")) {
2190                 ast_string_field_set(q, moh, val);
2191         } else if (!strcasecmp(param, "announce")) {
2192                 ast_string_field_set(q, announce, val);
2193         } else if (!strcasecmp(param, "context")) {
2194                 ast_string_field_set(q, context, val);
2195         } else if (!strcasecmp(param, "timeout")) {
2196                 q->timeout = atoi(val);
2197                 if (q->timeout < 0) {
2198                         q->timeout = DEFAULT_TIMEOUT;
2199                 }
2200         } else if (!strcasecmp(param, "ringinuse")) {
2201                 q->ringinuse = ast_true(val);
2202         } else if (!strcasecmp(param, "setinterfacevar")) {
2203                 q->setinterfacevar = ast_true(val);
2204         } else if (!strcasecmp(param, "setqueuevar")) {
2205                 q->setqueuevar = ast_true(val);
2206         } else if (!strcasecmp(param, "setqueueentryvar")) {
2207                 q->setqueueentryvar = ast_true(val);
2208         } else if (!strcasecmp(param, "monitor-format")) {
2209                 ast_copy_string(q->monfmt, val, sizeof(q->monfmt));
2210         } else if (!strcasecmp(param, "membermacro")) {
2211                 ast_string_field_set(q, membermacro, val);
2212         } else if (!strcasecmp(param, "membergosub")) {
2213                 ast_string_field_set(q, membergosub, val);
2214         } else if (!strcasecmp(param, "queue-youarenext")) {
2215                 ast_string_field_set(q, sound_next, val);
2216         } else if (!strcasecmp(param, "queue-thereare")) {
2217                 ast_string_field_set(q, sound_thereare, val);
2218         } else if (!strcasecmp(param, "queue-callswaiting")) {
2219                 ast_string_field_set(q, sound_calls, val);
2220         } else if (!strcasecmp(param, "queue-quantity1")) {
2221                 ast_string_field_set(q, queue_quantity1, val);
2222         } else if (!strcasecmp(param, "queue-quantity2")) {
2223                 ast_string_field_set(q, queue_quantity2, val);
2224         } else if (!strcasecmp(param, "queue-holdtime")) {
2225                 ast_string_field_set(q, sound_holdtime, val);
2226         } else if (!strcasecmp(param, "queue-minutes")) {
2227                 ast_string_field_set(q, sound_minutes, val);
2228         } else if (!strcasecmp(param, "queue-minute")) {
2229                 ast_string_field_set(q, sound_minute, val);
2230         } else if (!strcasecmp(param, "queue-seconds")) {
2231                 ast_string_field_set(q, sound_seconds, val);
2232         } else if (!strcasecmp(param, "queue-thankyou")) {
2233                 ast_string_field_set(q, sound_thanks, val);
2234         } else if (!strcasecmp(param, "queue-callerannounce")) {
2235                 ast_string_field_set(q, sound_callerannounce, val);
2236         } else if (!strcasecmp(param, "queue-reporthold")) {
2237                 ast_string_field_set(q, sound_reporthold, val);
2238         } else if (!strcasecmp(param, "announce-frequency")) {
2239                 q->announcefrequency = atoi(val);
2240         } else if (!strcasecmp(param, "min-announce-frequency")) {
2241                 q->minannouncefrequency = atoi(val);
2242                 ast_debug(1, "%s=%s for queue '%s'\n", param, val, q->name);
2243         } else if (!strcasecmp(param, "announce-round-seconds")) {
2244                 q->roundingseconds = atoi(val);
2245                 /* Rounding to any other values just doesn't make sense... */
2246                 if (!(q->roundingseconds == 0 || q->roundingseconds == 5 || q->roundingseconds == 10
2247                         || q->roundingseconds == 15 || q->roundingseconds == 20 || q->roundingseconds == 30)) {
2248                         if (linenum >= 0) {
2249                                 ast_log(LOG_WARNING, "'%s' isn't a valid value for %s "
2250                                         "using 0 instead for queue '%s' at line %d of queues.conf\n",
2251                                         val, param, q->name, linenum);
2252                         } else {
2253                                 ast_log(LOG_WARNING, "'%s' isn't a valid value for %s "
2254                                         "using 0 instead for queue '%s'\n", val, param, q->name);
2255                         }
2256                         q->roundingseconds=0;
2257                 }
2258         } else if (!strcasecmp(param, "announce-holdtime")) {
2259                 if (!strcasecmp(val, "once")) {
2260                         q->announceholdtime = ANNOUNCEHOLDTIME_ONCE;
2261                 } else if (ast_true(val)) {
2262                         q->announceholdtime = ANNOUNCEHOLDTIME_ALWAYS;
2263                 } else {
2264                         q->announceholdtime = 0;
2265                 }
2266         } else if (!strcasecmp(param, "announce-position")) {
2267                 if (!strcasecmp(val, "limit")) {
2268                         q->announceposition = ANNOUNCEPOSITION_LIMIT;
2269                 } else if (!strcasecmp(val, "more")) {
2270                         q->announceposition = ANNOUNCEPOSITION_MORE_THAN;
2271                 } else if (ast_true(val)) {
2272                         q->announceposition = ANNOUNCEPOSITION_YES;
2273                 } else {
2274                         q->announceposition = ANNOUNCEPOSITION_NO;
2275                 }
2276         } else if (!strcasecmp(param, "announce-position-limit")) {
2277                 q->announcepositionlimit = atoi(val);
2278         } else if (!strcasecmp(param, "periodic-announce")) {
2279                 if (strchr(val, ',')) {
2280                         char *s, *buf = ast_strdupa(val);
2281                         unsigned int i = 0;
2282
2283                         while ((s = strsep(&buf, ",|"))) {
2284                                 if (!q->sound_periodicannounce[i]) {
2285                                         q->sound_periodicannounce[i] = ast_str_create(16);
2286                                 }
2287                                 ast_str_set(&q->sound_periodicannounce[i], 0, "%s", s);
2288                                 i++;
2289                                 if (i == MAX_PERIODIC_ANNOUNCEMENTS) {
2290                                         break;
2291                                 }
2292                         }
2293                         q->numperiodicannounce = i;
2294                 } else {
2295                         ast_str_set(&q->sound_periodicannounce[0], 0, "%s", val);
2296                         q->numperiodicannounce = 1;
2297                 }
2298         } else if (!strcasecmp(param, "periodic-announce-frequency")) {
2299                 q->periodicannouncefrequency = atoi(val);
2300         } else if (!strcasecmp(param, "relative-periodic-announce")) {
2301                 q->relativeperiodicannounce = ast_true(val);
2302         } else if (!strcasecmp(param, "random-periodic-announce")) {
2303                 q->randomperiodicannounce = ast_true(val);
2304         } else if (!strcasecmp(param, "retry")) {
2305                 q->retry = atoi(val);
2306                 if (q->retry <= 0) {
2307                         q->retry = DEFAULT_RETRY;
2308                 }
2309         } else if (!strcasecmp(param, "wrapuptime")) {
2310                 q->wrapuptime = atoi(val);
2311         } else if (!strcasecmp(param, "penaltymemberslimit")) {
2312                 if ((sscanf(val, "%10d", &q->penaltymemberslimit) != 1)) {
2313                         q->penaltymemberslimit = 0;
2314                 }
2315         } else if (!strcasecmp(param, "autofill")) {
2316                 q->autofill = ast_true(val);
2317         } else if (!strcasecmp(param, "monitor-type")) {
2318                 if (!strcasecmp(val, "mixmonitor")) {
2319                         q->montype = 1;
2320                 }
2321         } else if (!strcasecmp(param, "autopause")) {
2322                 q->autopause = autopause2int(val);
2323         } else if (!strcasecmp(param, "autopausedelay")) {
2324                 q->autopausedelay = atoi(val);
2325         } else if (!strcasecmp(param, "autopausebusy")) {
2326                 q->autopausebusy = ast_true(val);
2327         } else if (!strcasecmp(param, "autopauseunavail")) {
2328                 q->autopauseunavail = ast_true(val);
2329         } else if (!strcasecmp(param, "maxlen")) {
2330                 q->maxlen = atoi(val);
2331                 if (q->maxlen < 0) {
2332                         q->maxlen = 0;
2333                 }
2334         } else if (!strcasecmp(param, "servicelevel")) {
2335                 q->servicelevel= atoi(val);
2336         } else if (!strcasecmp(param, "strategy")) {
2337                 int strategy;
2338
2339                 /* We are a static queue and already have set this, no need to do it again */
2340                 if (failunknown) {
2341                         return;
2342                 }
2343                 strategy = strat2int(val);
2344                 if (strategy < 0) {
2345                         ast_log(LOG_WARNING, "'%s' isn't a valid strategy for queue '%s', using ringall instead\n",
2346                                 val, q->name);
2347                         q->strategy = QUEUE_STRATEGY_RINGALL;
2348                 }
2349                 if (strategy == q->strategy) {
2350                         return;
2351                 }
2352                 if (strategy == QUEUE_STRATEGY_LINEAR) {
2353                         ast_log(LOG_WARNING, "Changing to the linear strategy currently requires asterisk to be restarted.\n");
2354                         return;
2355                 }
2356                 q->strategy = strategy;
2357         } else if (!strcasecmp(param, "joinempty")) {
2358                 parse_empty_options(val, &q->joinempty, 1);
2359         } else if (!strcasecmp(param, "leavewhenempty")) {
2360                 parse_empty_options(val, &q->leavewhenempty, 0);
2361         } else if (!strcasecmp(param, "eventmemberstatus")) {
2362                 q->maskmemberstatus = !ast_true(val);
2363         } else if (!strcasecmp(param, "eventwhencalled")) {
2364                 if (!strcasecmp(val, "vars")) {
2365                         q->eventwhencalled = QUEUE_EVENT_VARIABLES;
2366                 } else {
2367                         q->eventwhencalled = ast_true(val) ? 1 : 0;
2368                 }
2369         } else if (!strcasecmp(param, "reportholdtime")) {
2370                 q->reportholdtime = ast_true(val);
2371         } else if (!strcasecmp(param, "memberdelay")) {
2372                 q->memberdelay = atoi(val);
2373         } else if (!strcasecmp(param, "weight")) {
2374                 q->weight = atoi(val);
2375         } else if (!strcasecmp(param, "timeoutrestart")) {
2376                 q->timeoutrestart = ast_true(val);
2377         } else if (!strcasecmp(param, "defaultrule")) {
2378                 ast_string_field_set(q, defaultrule, val);
2379         } else if (!strcasecmp(param, "timeoutpriority")) {
2380                 if (!strcasecmp(val, "conf")) {
2381                         q->timeoutpriority = TIMEOUT_PRIORITY_CONF;
2382                 } else {
2383                         q->timeoutpriority = TIMEOUT_PRIORITY_APP;
2384                 }
2385         } else if (failunknown) {
2386                 if (linenum >= 0) {
2387                         ast_log(LOG_WARNING, "Unknown keyword in queue '%s': %s at line %d of queues.conf\n",
2388                                 q->name, param, linenum);
2389                 } else {
2390                         ast_log(LOG_WARNING, "Unknown keyword in queue '%s': %s\n", q->name, param);
2391                 }
2392         }
2393 }
2394
2395 /*!
2396  * \brief Find rt member record to update otherwise create one.
2397  *
2398  * Search for member in queue, if found update penalty/paused state,
2399  * if no member exists create one flag it as a RT member and add to queue member list.
2400 */
2401 static void rt_handle_member_record(struct call_queue *q, char *interface, struct ast_config *member_config)
2402 {
2403         struct member *m;
2404         struct ao2_iterator mem_iter;
2405         int penalty = 0;
2406         int paused  = 0;
2407         int found = 0;
2408         int ringinuse = q->ringinuse;
2409
2410         const char *config_val;
2411         const char *rt_uniqueid = ast_variable_retrieve(member_config, interface, "uniqueid");
2412         const char *membername = S_OR(ast_variable_retrieve(member_config, interface, "membername"), interface);
2413         const char *state_interface = S_OR(ast_variable_retrieve(member_config, interface, "state_interface"), interface);
2414         const char *penalty_str = ast_variable_retrieve(member_config, interface, "penalty");
2415         const char *paused_str = ast_variable_retrieve(member_config, interface, "paused");
2416
2417         if (ast_strlen_zero(rt_uniqueid)) {
2418                 ast_log(LOG_WARNING, "Realtime field uniqueid is empty for member %s\n", S_OR(membername, "NULL"));
2419                 return;
2420         }
2421
2422         if (penalty_str) {
2423                 penalty = atoi(penalty_str);
2424                 if ((penalty < 0) && negative_penalty_invalid) {
2425                         return;
2426                 } else if (penalty < 0) {
2427                         penalty = 0;
2428                 }
2429         }
2430
2431         if (paused_str) {
2432                 paused = atoi(paused_str);
2433                 if (paused < 0) {
2434                         paused = 0;
2435                 }
2436         }
2437
2438         if ((config_val = ast_variable_retrieve(member_config, interface, realtime_ringinuse_field))) {
2439                 if (ast_true(config_val)) {
2440                         ringinuse = 1;
2441                 } else if (ast_false(config_val)) {
2442                         ringinuse = 0;
2443                 } else {
2444                         ast_log(LOG_WARNING, "Invalid value of '%s' field for %s in queue '%s'\n", realtime_ringinuse_field, interface, q->name);
2445                 }
2446         }
2447
2448         /* Find member by realtime uniqueid and update */
2449         mem_iter = ao2_iterator_init(q->members, 0);
2450         while ((m = ao2_iterator_next(&mem_iter))) {
2451                 if (!strcasecmp(m->rt_uniqueid, rt_uniqueid)) {
2452                         m->dead = 0;    /* Do not delete this one. */
2453                         ast_copy_string(m->rt_uniqueid, rt_uniqueid, sizeof(m->rt_uniqueid));
2454                         if (paused_str) {
2455                                 m->paused = paused;
2456                         }
2457                         if (strcasecmp(state_interface, m->state_interface)) {
2458                                 ast_copy_string(m->state_interface, state_interface, sizeof(m->state_interface));
2459                         }
2460                         m->penalty = penalty;
2461                         m->ringinuse = ringinuse;
2462                         found = 1;
2463                         ao2_ref(m, -1);
2464                         break;
2465                 }
2466                 ao2_ref(m, -1);
2467         }
2468         ao2_iterator_destroy(&mem_iter);
2469
2470         /* Create a new member */
2471         if (!found) {
2472                 if ((m = create_queue_member(interface, membername, penalty, paused, state_interface, ringinuse))) {
2473                         m->dead = 0;
2474                         m->realtime = 1;
2475                         ast_copy_string(m->rt_uniqueid, rt_uniqueid, sizeof(m->rt_uniqueid));
2476                         if (!log_membername_as_agent) {
2477                                 ast_queue_log(q->name, "REALTIME", m->interface, "ADDMEMBER", "%s", paused ? "PAUSED" : "");
2478                         } else {
2479                                 ast_queue_log(q->name, "REALTIME", m->membername, "ADDMEMBER", "%s", paused ? "PAUSED" : "");
2480                         }
2481                         ao2_link(q->members, m);
2482                         ao2_ref(m, -1);
2483                         m = NULL;
2484                 }
2485         }
2486 }
2487
2488 /*! \brief Iterate through queue's member list and delete them */
2489 static void free_members(struct call_queue *q, int all)
2490 {
2491         /* Free non-dynamic members */
2492         struct member *cur;
2493         struct ao2_iterator mem_iter = ao2_iterator_init(q->members, 0);
2494
2495         while ((cur = ao2_iterator_next(&mem_iter))) {
2496                 if (all || !cur->dynamic) {
2497                         ao2_unlink(q->members, cur);
2498                 }
2499                 ao2_ref(cur, -1);
2500         }
2501         ao2_iterator_destroy(&mem_iter);
2502 }
2503
2504 /*! \brief Free queue's member list then its string fields */
2505 static void destroy_queue(void *obj)
2506 {
2507         struct call_queue *q = obj;
2508         int i;
2509
2510         free_members(q, 1);
2511         ast_string_field_free_memory(q);
2512         for (i = 0; i < MAX_PERIODIC_ANNOUNCEMENTS; i++) {
2513                 if (q->sound_periodicannounce[i]) {
2514                         free(q->sound_periodicannounce[i]);
2515                 }
2516         }
2517         ao2_ref(q->members, -1);
2518 }
2519
2520 static struct call_queue *alloc_queue(const char *queuename)
2521 {
2522         struct call_queue *q;
2523
2524         if ((q = ao2_t_alloc(sizeof(*q), destroy_queue, "Allocate queue"))) {
2525                 if (ast_string_field_init(q, 64)) {
2526                         queue_t_unref(q, "String field allocation failed");
2527                         return NULL;
2528                 }
2529                 ast_string_field_set(q, name, queuename);
2530         }
2531         return q;
2532 }
2533
2534 /*!
2535  * \brief Reload a single queue via realtime.
2536  *
2537  * Check for statically defined queue first, check if deleted RT queue,
2538  * check for new RT queue, if queue vars are not defined init them with defaults.
2539  * reload RT queue vars, set RT queue members dead and reload them, return finished queue.
2540  * \retval the queue,
2541  * \retval NULL if it doesn't exist.
2542  * \note Should be called with the "queues" container locked.
2543 */
2544 static struct call_queue *find_queue_by_name_rt(const char *queuename, struct ast_variable *queue_vars, struct ast_config *member_config)
2545 {
2546         struct ast_variable *v;
2547         struct call_queue *q, tmpq = {
2548                 .name = queuename,
2549         };
2550         struct member *m;
2551         struct ao2_iterator mem_iter;
2552         char *interface = NULL;
2553         const char *tmp_name;
2554         char *tmp;
2555         char tmpbuf[64];        /* Must be longer than the longest queue param name. */
2556
2557         /* Static queues override realtime. */
2558         if ((q = ao2_t_find(queues, &tmpq, OBJ_POINTER, "Check if static queue exists"))) {
2559                 ao2_lock(q);
2560                 if (!q->realtime) {
2561                         if (q->dead) {
2562                                 ao2_unlock(q);
2563                                 queue_t_unref(q, "Queue is dead; can't return it");
2564                                 return NULL;
2565                         } 
2566                         ast_log(LOG_WARNING, "Static queue '%s' already exists. Not loading from realtime\n", q->name);
2567                         ao2_unlock(q);
2568                         return q;
2569                 }
2570         } else if (!member_config) {
2571                 /* Not found in the list, and it's not realtime ... */
2572                 return NULL;
2573         }
2574         /* Check if queue is defined in realtime. */
2575         if (!queue_vars) {
2576                 /* Delete queue from in-core list if it has been deleted in realtime. */
2577                 if (q) {
2578                         /*! \note Hmm, can't seem to distinguish a DB failure from a not
2579                            found condition... So we might delete an in-core queue
2580                            in case of DB failure. */
2581                         ast_debug(1, "Queue %s not found in realtime.\n", queuename);
2582
2583                         q->dead = 1;
2584                         /* Delete if unused (else will be deleted when last caller leaves). */
2585                         queues_t_unlink(queues, q, "Unused; removing from container");
2586                         ao2_unlock(q);
2587                         queue_t_unref(q, "Queue is dead; can't return it");
2588                 }
2589                 return NULL;
2590         }
2591
2592         /* Create a new queue if an in-core entry does not exist yet. */
2593         if (!q) {
2594                 struct ast_variable *tmpvar = NULL;
2595                 if (!(q = alloc_queue(queuename))) {
2596                         return NULL;
2597                 }
2598                 ao2_lock(q);
2599                 clear_queue(q);
2600                 q->realtime = 1;
2601                 /*Before we initialize the queue, we need to set the strategy, so that linear strategy
2602                  * will allocate the members properly
2603                  */
2604                 for (tmpvar = queue_vars; tmpvar; tmpvar = tmpvar->next) {
2605                         if (!strcasecmp(tmpvar->name, "strategy")) {
2606                                 q->strategy = strat2int(tmpvar->value);
2607                                 if (q->strategy < 0) {
2608                                         ast_log(LOG_WARNING, "'%s' isn't a valid strategy for queue '%s', using ringall instead\n",
2609                                         tmpvar->value, q->name);
2610                                         q->strategy = QUEUE_STRATEGY_RINGALL;
2611                                 }
2612                                 break;
2613                         }
2614                 }
2615                 /* We traversed all variables and didn't find a strategy */
2616                 if (!tmpvar) {
2617                         q->strategy = QUEUE_STRATEGY_RINGALL;
2618                 }
2619                 queues_t_link(queues, q, "Add queue to container");
2620         }
2621         init_queue(q);          /* Ensure defaults for all parameters not set explicitly. */
2622
2623         memset(tmpbuf, 0, sizeof(tmpbuf));
2624         for (v = queue_vars; v; v = v->next) {
2625                 /* Convert to dashes `-' from underscores `_' as the latter are more SQL friendly. */
2626                 if (strchr(v->name, '_')) {
2627                         ast_copy_string(tmpbuf, v->name, sizeof(tmpbuf));
2628                         tmp_name = tmpbuf;
2629                         tmp = tmpbuf;
2630                         while ((tmp = strchr(tmp, '_'))) {
2631                                 *tmp++ = '-';
2632                         }
2633                 } else {
2634                         tmp_name = v->name;
2635                 }
2636
2637                 /* NULL values don't get returned from realtime; blank values should
2638                  * still get set.  If someone doesn't want a value to be set, they
2639                  * should set the realtime column to NULL, not blank. */
2640                 queue_set_param(q, tmp_name, v->value, -1, 0);
2641         }
2642
2643         /* Temporarily set realtime members dead so we can detect deleted ones. */
2644         mem_iter = ao2_iterator_init(q->members, 0);
2645         while ((m = ao2_iterator_next(&mem_iter))) {
2646                 if (m->realtime) {
2647                         m->dead = 1;
2648                 }
2649                 ao2_ref(m, -1);
2650         }
2651         ao2_iterator_destroy(&mem_iter);
2652
2653         while ((interface = ast_category_browse(member_config, interface))) {
2654                 rt_handle_member_record(q, interface, member_config);
2655         }
2656
2657         /* Delete all realtime members that have been deleted in DB. */
2658         mem_iter = ao2_iterator_init(q->members, 0);
2659         while ((m = ao2_iterator_next(&mem_iter))) {
2660                 if (m->dead) {
2661                         if (ast_strlen_zero(m->membername) || !log_membername_as_agent) {
2662                                 ast_queue_log(q->name, "REALTIME", m->interface, "REMOVEMEMBER", "%s", "");
2663                         } else {
2664                                 ast_queue_log(q->name, "REALTIME", m->membername, "REMOVEMEMBER", "%s", "");
2665                         }
2666                         ao2_unlink(q->members, m);
2667                 }
2668                 ao2_ref(m, -1);
2669         }
2670         ao2_iterator_destroy(&mem_iter);
2671
2672         ao2_unlock(q);
2673
2674         return q;
2675 }
2676
2677 /*!
2678  * note  */
2679
2680 /*!
2681  * \internal
2682  * \brief Returns reference to the named queue. If the queue is realtime, it will load the queue as well.
2683  * \param queuename - name of the desired queue
2684  *
2685  * \retval the queue
2686  * \retval NULL if it doesn't exist
2687  */
2688 static struct call_queue *find_load_queue_rt_friendly(const char *queuename)
2689 {
2690         struct ast_variable *queue_vars;
2691         struct ast_config *member_config = NULL;
2692         struct call_queue *q = NULL, tmpq = {
2693                 .name = queuename,
2694         };
2695         int prev_weight = 0;
2696
2697         /* Find the queue in the in-core list first. */
2698         q = ao2_t_find(queues, &tmpq, OBJ_POINTER, "Look for queue in memory first");
2699
2700         if (!q || q->realtime) {
2701                 /*! \note Load from realtime before taking the "queues" container lock, to avoid blocking all
2702                    queue operations while waiting for the DB.
2703
2704                    This will be two separate database transactions, so we might
2705                    see queue parameters as they were before another process
2706                    changed the queue and member list as it was after the change.
2707                    Thus we might see an empty member list when a queue is
2708                    deleted. In practise, this is unlikely to cause a problem. */
2709
2710                 queue_vars = ast_load_realtime("queues", "name", queuename, SENTINEL);
2711                 if (queue_vars) {
2712                         member_config = ast_load_realtime_multientry("queue_members", "interface LIKE", "%", "queue_name", queuename, SENTINEL);
2713                         if (!member_config) {
2714                                 ast_debug(1, "No queue_members defined in config extconfig.conf\n");
2715                                 member_config = ast_config_new();
2716                         }
2717                 }
2718                 if (q) {
2719                         prev_weight = q->weight ? 1 : 0;
2720                         queue_t_unref(q, "Need to find realtime queue");
2721                 }
2722
2723                 q = find_queue_by_name_rt(queuename, queue_vars, member_config);
2724                 ast_config_destroy(member_config);
2725                 ast_variables_destroy(queue_vars);
2726
2727                 /* update the use_weight value if the queue's has gained or lost a weight */
2728                 if (q) {
2729                         if (!q->weight && prev_weight) {
2730                                 ast_atomic_fetchadd_int(&use_weight, -1);
2731                         }
2732                         if (q->weight && !prev_weight) {
2733                                 ast_atomic_fetchadd_int(&use_weight, +1);
2734                         }
2735                 }
2736                 /* Other cases will end up with the proper value for use_weight */
2737         } else {
2738                 update_realtime_members(q);
2739         }
2740         return q;
2741 }
2742
2743 static int update_realtime_member_field(struct member *mem, const char *queue_name, const char *field, const char *value)
2744 {
2745         int ret = -1;
2746
2747         if (ast_strlen_zero(mem->rt_uniqueid)) {
2748                 return ret;
2749         }
2750
2751         if ((ast_update_realtime("queue_members", "uniqueid", mem->rt_uniqueid, field, value, SENTINEL)) > 0) {
2752                 ret = 0;
2753         }
2754
2755         return ret;
2756 }
2757
2758
2759 static void update_realtime_members(struct call_queue *q)
2760 {
2761         struct ast_config *member_config = NULL;
2762         struct member *m;
2763         char *interface = NULL;
2764         struct ao2_iterator mem_iter;
2765
2766         if (!(member_config = ast_load_realtime_multientry("queue_members", "interface LIKE", "%", "queue_name", q->name , SENTINEL))) {
2767                 /* This queue doesn't have realtime members. If the queue still has any realtime
2768                  * members in memory, they need to be removed.
2769                  */
2770                 ao2_lock(q);
2771                 mem_iter = ao2_iterator_init(q->members, 0);
2772                 while ((m = ao2_iterator_next(&mem_iter))) {
2773                         if (m->realtime) {
2774                                 ao2_unlink(q->members, m);
2775                         }
2776                         ao2_ref(m, -1);
2777                 }
2778                 ast_debug(3, "Queue %s has no realtime members defined. No need for update\n", q->name);
2779                 ao2_unlock(q);
2780                 return;
2781         }
2782
2783         ao2_lock(q);
2784
2785         /* Temporarily set realtime  members dead so we can detect deleted ones.*/
2786         mem_iter = ao2_iterator_init(q->members, 0);
2787         while ((m = ao2_iterator_next(&mem_iter))) {
2788                 if (m->realtime) {
2789                         m->dead = 1;
2790                 }
2791                 ao2_ref(m, -1);
2792         }
2793         ao2_iterator_destroy(&mem_iter);
2794
2795         while ((interface = ast_category_browse(member_config, interface))) {
2796                 rt_handle_member_record(q, interface, member_config);
2797         }
2798
2799         /* Delete all realtime members that have been deleted in DB. */
2800         mem_iter = ao2_iterator_init(q->members, 0);
2801         while ((m = ao2_iterator_next(&mem_iter))) {
2802                 if (m->dead) {
2803                         if (ast_strlen_zero(m->membername) || !log_membername_as_agent) {
2804                                 ast_queue_log(q->name, "REALTIME", m->interface, "REMOVEMEMBER", "%s", "");
2805                         } else {
2806                                 ast_queue_log(q->name, "REALTIME", m->membername, "REMOVEMEMBER", "%s", "");
2807                         }
2808                         ao2_unlink(q->members, m);
2809                 }
2810                 ao2_ref(m, -1);
2811         }
2812         ao2_iterator_destroy(&mem_iter);
2813         ao2_unlock(q);
2814         ast_config_destroy(member_config);
2815 }
2816
2817 static int join_queue(char *queuename, struct queue_ent *qe, enum queue_result *reason, int position)
2818 {
2819         struct call_queue *q;
2820         struct queue_ent *cur, *prev = NULL;
2821         int res = -1;
2822         int pos = 0;
2823         int inserted = 0;
2824
2825         if (!(q = find_load_queue_rt_friendly(queuename))) {
2826                 return res;
2827         }
2828         ao2_lock(q);
2829
2830         /* This is our one */
2831         if (q->joinempty) {
2832                 int status = 0;
2833                 if ((status = get_member_status(q, qe->max_penalty, qe->min_penalty, q->joinempty))) {
2834                         *reason = QUEUE_JOINEMPTY;
2835                         ao2_unlock(q);
2836                         queue_t_unref(q, "Done with realtime queue");
2837                         return res;
2838                 }
2839         }
2840         if (*reason == QUEUE_UNKNOWN && q->maxlen && (q->count >= q->maxlen)) {
2841                 *reason = QUEUE_FULL;
2842         } else if (*reason == QUEUE_UNKNOWN) {
2843                 /* There's space for us, put us at the right position inside
2844                  * the queue.
2845                  * Take into account the priority of the calling user */
2846                 inserted = 0;
2847                 prev = NULL;
2848                 cur = q->head;
2849                 while (cur) {
2850                         /* We have higher priority than the current user, enter
2851                          * before him, after all the other users with priority
2852                          * higher or equal to our priority. */
2853                         if ((!inserted) && (qe->prio > cur->prio)) {
2854                                 insert_entry(q, prev, qe, &pos);
2855                                 inserted = 1;
2856                         }
2857                         /* <= is necessary for the position comparison because it may not be possible to enter
2858                          * at our desired position since higher-priority callers may have taken the position we want
2859                          */
2860                         if (!inserted && (qe->prio >= cur->prio) && position && (position <= pos + 1)) {
2861                                 insert_entry(q, prev, qe, &pos);
2862                                 inserted = 1;
2863                                 /*pos is incremented inside insert_entry, so don't need to add 1 here*/
2864                                 if (position < pos) {
2865                                         ast_log(LOG_NOTICE, "Asked to be inserted at position %d but forced into position %d due to higher priority callers\n", position, pos);
2866                                 }
2867                         }
2868                         cur->pos = ++pos;
2869                         prev = cur;
2870                         cur = cur->next;
2871                 }
2872                 /* No luck, join at the end of the queue */
2873                 if (!inserted) {
2874                         insert_entry(q, prev, qe, &pos);
2875                 }
2876                 ast_copy_string(qe->moh, q->moh, sizeof(qe->moh));
2877                 ast_copy_string(qe->announce, q->announce, sizeof(qe->announce));
2878                 ast_copy_string(qe->context, q->context, sizeof(qe->context));