Commit Graph

49 Commits

Author SHA1 Message Date
Alexander Traud
c549eda0a7 parking: Fix for Doxygen.
ASTERISK-29753

Change-Id: I7a61974584f6169502e6860fc711919fe7bbfaa7
2021-11-18 16:25:23 -06:00
Sean Bright
5a0b19a4f3 pbx.c: On error, ast_add_extension2_lockopt should always free 'data'
In the event that the desired extension already exists,
ast_add_extension2_lockopt() will free the 'data' it is passed before
returning an error, so we should not be freeing it ourselves.

Additionally, there were two places where ast_add_extension2_lockopt()
could return an error without also freeing the 'data' pointer, so we
add that.

ASTERISK-29097 #close

Change-Id: I904707aae55169feda050a5ed7c6793b53fe6eae
2020-10-02 12:57:22 -05:00
Joshua C. Colp
4f0766dcda parking: Copy parker UUID as well.
When fixing issues uncovered by GCC10 a copy of the parker UUID
was removed accidentally. This change restores it so that the
subscription has the data it needs.

ASTERISK-29042

Change-Id: I7d396a14ea648bd26d3c363dd78e78bd386b544a
2020-08-31 12:23:55 -05:00
Kevin Harwell
3d1bf3c537 Compiler fixes for gcc 10
This patch fixes a few compile warnings/errors that now occur when using gcc
10+.

Also, the Makefile.rules check to turn off partial inlining in gcc versions
greater or equal to 8.2.1 had a bug where it only it only checked against
versions with at least 3 numbers (ex: 8.2.1 vs 10). This patch now ensures
any version above the specified version is correctly compared.

Change-Id: I54718496eb0c3ce5bd6d427cd279a29e8d2825f9
2020-06-10 09:33:28 -05:00
Kevin Harwell
bdd785d31c various files - fix some alerts raised by lgtm code analysis
This patch fixes several issues reported by the lgtm code analysis tool:

https://lgtm.com/projects/g/asterisk/asterisk

Not all reported issues were addressed in this patch. This patch mostly fixes
confirmed reported errors, potential problematic code points, and a few other
"low hanging" warnings or recommendations found in core supported modules.
These include, but are not limited to the following:

* innapropriate stack allocation in loops
* buffer overflows
* variable declaration "hiding" another variable declaration
* comparisons results that are always the same
* ambiguously signed bit-field members
* missing header guards

Change-Id: Id4a881686605d26c94ab5409bc70fcc21efacc25
2019-11-18 08:30:45 -06:00
Joshua Colp
50ac85cb40 stasis: Segment channel snapshot to reduce creation cost.
When a channel snapshot was created it used to be done
from scratch, copying all data (many strings). This incurs
a cost when doing so.

This change segments the channel snapshot into different
components which can be reused if unchanged from the
previous snapshot creation, reducing the cost. In normal
cases this results in some pointers being copied with
reference count being bumped, some integers being set,
and a string or two copied. The other benefit is that it
is now possible to determine if a channel snapshot update
is redundant and thus stop it before a message is published
to stasis.

The specific segments in the channel snapshot were split up
based on whether they are changed together, how often they
are changed, and their general grouping. In practice only
1 (or 0) of the segments actually get changed in normal
operation.

Invalidation is done by setting a flag on the channel when
the segment source is changed, forcing creation of a new
segment when the channel snapshot is created.

ASTERISK-28119

Change-Id: I5d7ef3df963a88ac47bc187d73c5225c315f8423
2018-11-26 12:56:24 -06:00
Joshua Colp
3077ad0c24 stasis: Add internal filtering of messages.
This change adds the ability for subscriptions to indicate
which message types they are interested in accepting. By
doing so the filtering is done before being dispatched
to the subscriber, reducing the amount of work that has
to be done.

This is optional and if a subscriber does not add
message types they wish to accept and set the subscription
to selective filtering the previous behavior is preserved
and they receive all messages.

There is also the ability to explicitly force the reception
of all messages for cases such as AMI or ARI where a large
number of messages are expected that are then generically
converted into a different format.

ASTERISK-28103

Change-Id: I99bee23895baa0a117985d51683f7963b77aa190
2018-11-18 15:08:16 -05:00
Sean Bright
79c2b4fddd res_parking: Stop setting the deprecated PARKINGSLOT channel variable.
Change-Id: Ia155ce2a53d61556aa4685524d1b48cfacfa3a8b
2018-10-25 07:52:37 -03:00
Joshua Elson
f7137e1230 res_parking: Add dialplan function for lot channel
This commit adds a new function to res_parking.

This function, PARK_GET_CHANNEL allows the retrieval
of the channel name of the channel occupying the parking slot.

ASTERISK-22825 #close

Change-Id: Idba6ae55b8a53f734238cb3d995cedb95c0e7b74
2018-07-10 11:03:01 -05:00
Jonathan R. Rose
d96e350256 core/pbx: dialplan show - display filename/line#
Adds the ability for extensions to be registered to include filename and
line number so that dialplan show output can show the filename and line
number of a config file responsible for generating a given extension.

This only affects config modules that are written to use the new extension
registering functions. In this patch, that only includes pbx_config, so
extensions registered in extensions.conf and any included extension will
be shown in this manner. Extensions registered in this manner will show
the filename and line number *instead* of the registrar.

ASTERISK-26658 #close
Reported by: Jonathan R. Rose

Change-Id: Ieccc6abccdff34ed5c7da3511fd24972b8f2dd30
2017-01-04 14:06:20 -06:00
Corey Farrell
a6e5bae3ef Remove ASTERISK_REGISTER_FILE.
ASTERISK_REGISTER_FILE no longer has any purpose so this commit removes
all traces of it.

Previously exported symbols removed:
* __ast_register_file
* __ast_unregister_file
* ast_complete_source_filename

This also removes the mtx_prof static variable that was declared when
MTX_PROFILE was enabled.  This variable was only used in lock.c so it
is now initialized in that file only.

ASTERISK-26480 #close

Change-Id: I1074af07d71f9e159c48ef36631aa432c86f9966
2016-10-27 09:53:55 -04:00
Joshua Colp
6ce25bd62a Merge "res_parking: Misc fixes." 2016-03-29 09:03:55 -05:00
Joshua Colp
77a9272431 Merge "res_parking: Fix blind transfer dynamic lots creation." 2016-03-26 14:25:47 -05:00
Richard Mudgett
8e8cf80cea res_parking: Fix blind transfer dynamic lots creation.
Blind transfers to a recognized parking extension need to use the parker's
channel variable values to create the dynamic parking lot.  This is
because there is always only one parker while the parkee may actually be a
multi-party bridge.  A multi-party bridge can never supply the needed
channel variables to create the dynamic parking lot.  In the multi-party
bridge blind transfer scenario, the parker's CHANNEL(parkinglot) value and
channel variables are inherited by the local channel used to park the
bridge.

* In park_common_setup(), make use the parker instead of the parkee to
supply the dynamic parking lot channel variable values.  In all but one
case, the parkee is the same as the parker.  However, in the recognized
parking extension blind transfer scenario for a two party bridge they are
different channels.  For consistency, we need to use the parker channel.

* In park_local_transfer(), pass the CHANNEL(parkinglot) value to the
local channel when blind transferring a multi-party bridge to a recognized
parking extension.

* When a local channel starts a call, the Local;2 side needs to inherit
the CHANNEL(parkinglot) value from Local;1.

The DTMF one-touch parking case wasn't even trying to create dynamic
parking lots before it aborted the attempt.

* In parking_park_call(), add missing code to create a dynamic parking
lot.

A DTMF bridge hook is documented as returning -1 to remove the hook.
Though the hook caller is really coded to accept non-zero.  See the
ast_bridge_hook_callback typedef.

* In feature_park_call(), don't remove the DTMF one-touch parking hook
because of an error.

ASTERISK-24605 #close
Reported by:  Philip Correia
Patches:
      call_park.patch (license #6672) patch uploaded by Philip Correia

Change-Id: I221d3a8fcc181877a1158d17004474d35d8016c9
2016-03-26 02:52:08 -05:00
Richard Mudgett
3cf714031c res_parking: Cleanup find_channel_parking_lot_name() usage.
Change-Id: I8f7a8890aef27824301c642d4d15407ac83e6f02
2016-03-25 18:32:42 -05:00
Richard Mudgett
13e75ee04f res_parking: Misc fixes.
res/parking/parking_applications.c:

* Add malloc fail checks in setup_park_common_datastore().

* Fix playing parking failed announcement to only happen on non-blind
transfers in park_app_exec().  It could never go out before because a test
was provedly always false.

res/parking/parking_bridge.c:

* Fix NULL tolerance in generate_parked_user() because
bridge_parking_push() can theoretically pass a NULL parker channel if the
parker channel went away for some reason.

* Clarify some weird code dealing with blind_transfer in
bridge_parking_push().

res/parking/parking_bridge_features.c:

* Made park_local_transfer() set BLINDTRANSFER on the Local;1 channel
which will be bulk copied to the Local;2 channel on the subsequent
ast_call().  The additional advantage is if the parker channel has the
BLINDTRANSFER and ATTENDEDTRANSFER variables set they are now guaranteed
to be overridden.

res/parking/parking_manager.c:

* Fix AMI Park action input range checking of the Timeout header in
manager_park().

* Reduced locking scope to where needed in manager_park().

res/res_parking.c:

* Fix some off nominal missing unlocks by eliminating the returns.

Change-Id: Ib64945bc285acb05a306dc12e6f16854898915ca
2016-03-25 18:28:31 -05:00
Corey Farrell
a8bfa9e104 Modules: Make ast_module_info->self available to auxiliary sources.
ast_module_info->self is often needed to register items with the core.  Many
modules have ad-hoc code to make this pointer available to auxiliary sources.
This change updates the module build process to make the needed information
available to all sources in a module.

ASTERISK-25056 #close
Reported by: Corey Farrell

Change-Id: I18c8cd58fbcb1b708425f6757becaeca9fa91815
2015-05-04 20:47:01 -04:00
Matt Jordan
4a58261694 git migration: Refactor the ASTERISK_FILE_VERSION macro
Git does not support the ability to replace a token with a version
string during check-in. While it does have support for replacing a
token on clone, this is somewhat sub-optimal: the token is replaced
with the object hash, which is not particularly easy for human
consumption. What's more, in practice, the source file version was often
not terribly useful. Generally, when triaging bugs, the overall version
of Asterisk is far more useful than an individual SVN version of a file. As a
result, this patch removes Asterisk's support for showing source file
versions.

Specifically, it does the following:

* Rename ASTERISK_FILE_VERSION macro to ASTERISK_REGISTER_FILE, and
  remove passing the version in with the macro. Other facilities
  than 'core show file version' make use of the file names, such as
  setting a debug level only on a specific file. As such, the act of
  registering source files with the Asterisk core still has use. The
  macro rename now reflects the new macro purpose.

* main/asterisk:
  - Refactor the file_version structure to reflect that it no longer
    tracks a version field.
  - Remove the "core show file version" CLI command. Without the file
    version, it is no longer useful.
  - Remove the ast_file_version_find function. The file version is no
    longer tracked.
  - Rename ast_register_file_version/ast_unregister_file_version to
    ast_register_file/ast_unregister_file, respectively.

* main/manager: Remove value from the Version key of the ModuleCheck
  Action. The actual key itself has not been removed, as doing so would
  absolutely constitute a backwards incompatible change. However, since
  the file version is no longer tracked, there is no need to attempt to
  include it in the Version key.

* UPGRADE: Add notes for:
  - Modification to the ModuleCheck AMI Action
  - Removal of the "core show file version" CLI command

Change-Id: I6cf0ff280e1668bf4957dc21f32a5ff43444a40e
2015-04-13 03:48:57 -04:00
Matthew Jordan
1106e8fd0f main/stasis: Allow subscriptions to use a threadpool for message delivery
Prior to this patch, all Stasis subscriptions would receive a dedicated
thread for servicing published messages. In contrast, prior to r400178
(see review https://reviewboard.asterisk.org/r/2881/), the subscriptions
shared a thread pool. It was discovered during some initial work on Stasis
that, for a low subscription count with high message throughput, the
threadpool was not as performant as simply having a dedicated thread per
subscriber.

For situations where a subscriber receives a substantial number of messages
and is always present, the model of having a dedicated thread per subscriber
makes sense. While we still have plenty of subscriptions that would follow
this model, e.g., AMI, CDRs, CEL, etc., there are plenty that also fall into
the following two categories:
* Large number of subscriptions, specifically those tied to endpoints/peers.
* Low number of messages. Some subscriptions exist specifically to coordinate
  a single message - the subscription is created, a message is published, the
  delivery is synchronized, and the subscription is destroyed.
In both of the latter two cases, creating a dedicated thread is wasteful (and
in the case of a large number of peers/endpoints, harmful). In those cases,
having shared delivery threads is far more performant.

This patch adds the ability of a subscriber to Stasis to choose whether or not
their messages are dispatched on a dedicated thread or on a threadpool. The
threadpool is configurable through stasis.conf.

Review: https://reviewboard.asterisk.org/r/4193

ASTERISK-24533 #close
Reported by: xrobau
Tested by: xrobau
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Merged revisions 428681 from http://svn.asterisk.org/svn/asterisk/branches/12
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Merged revisions 428687 from http://svn.asterisk.org/svn/asterisk/branches/13


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2014-12-01 17:59:21 +00:00
Richard Mudgett
a2ce95d9d2 accountcode: Slightly change accountcode propagation.
The previous behavior was to simply set the accountcode of an outgoing
channel to the accountcode of the channel initiating the call.  It was
done this way a long time ago to allow the accountcode set on the SIP/100
channel to be propagated to a local channel so the dialplan execution on
the Local;2 channel would have the SIP/100 accountcode available.

SIP/100 -> Local;1/Local;2 -> SIP/200

Propagating the SIP/100 accountcode to the local channels is very useful.
Without any dialplan manipulation, all channels in this call would have
the same accountcode.

Using dialplan, you can set a different accountcode on the SIP/200 channel
either by setting the accountcode on the Local;2 channel or by the Dial
application's b(pre-dial), M(macro) or U(gosub) options, or by the
FollowMe application's b(pre-dial) option, or by the Queue application's
macro or gosub options.  Before Asterisk v12, the altered accountcode on
SIP/200 will remain until the local channels optimize out and the
accountcode would change to the SIP/100 accountcode.

Asterisk v1.8 attempted to add peeraccount support but ultimately had to
punt on the support.  The peeraccount support was rendered useless because
of how the CDR code needed to unconditionally force the caller's
accountcode onto the peer channel's accountcode.  The CEL events were thus
intentionally made to always use the channel's accountcode as the
peeraccount value.

With the arrival of Asterisk v12, the situation has improved somewhat so
peeraccount support can be made to work.  Using the indicated example, the
the accountcode values become as follows when the peeraccount is set on
SIP/100 before calling SIP/200:

SIP/100 ---> Local;1 ---- Local;2 ---> SIP/200
acct: 100 \/ acct: 200 \/ acct: 100 \/ acct: 200
peer: 200 /\ peer: 100 /\ peer: 200 /\ peer: 100

If a channel already has an accountcode it can only change by the
following explicit user actions:

1) A channel originate method that can specify an accountcode to use.

2) The calling channel propagating its non-empty peeraccount or its
non-empty accountcode if the peeraccount was empty to the outgoing
channel's accountcode before initiating the dial.  e.g., Dial and
FollowMe.  The exception to this propagation method is Queue.  Queue will
only propagate peeraccounts this way only if the outgoing channel does not
have an accountcode.

3) Dialplan using CHANNEL(accountcode).

4) Dialplan using CHANNEL(peeraccount) on the other end of a local
channel pair.

If a channel does not have an accountcode it can get one from the
following places:

1) The channel driver's configuration at channel creation.

2) Explicit user action as already indicated.

3) Entering a basic or stasis-mixing bridge from a peer channel's
peeraccount value.

You can specify the accountcode for an outgoing channel by setting the
CHANNEL(peeraccount) before using the Dial, FollowMe, and Queue
applications.  Queue adds the wrinkle that it will not overwrite an
existing accountcode on the outgoing channel with the calling channels
values.

Accountcode and peeraccount values propagate to an outgoing channel before
dialing.  Accountcodes also propagate when channels enter or leave a basic
or stasis-mixing bridge.  The peeraccount value only makes sense for
mixing bridges with two channels; it is meaningless otherwise.

* Made peeraccount functional by changing accountcode propagation as
described above.

* Fixed CEL extracting the wrong ie value for the peeraccount.  This was
done intentionally in Asterisk v1.8 when that version had to punt on
peeraccount.

* Fixed a few places dealing with accountcodes that were reading from
channels without the lock held.

AFS-65 #close

Review: https://reviewboard.asterisk.org/r/3601/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@419520 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-07-24 22:48:38 +00:00
Jonathan Rose
d00882108f res_pjsip_refer: Fix bugs involving Parking/PJSIP/transfers
PJSIP would never send the final 200 Notify for a blind transfer
when transferring to parking. This patch fixes that. In addition,
it fixes a reference leak when performing blind transfers to
non-bridging extensions.

Review: https://reviewboard.asterisk.org/r/3485/
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Merged revisions 414400 from http://svn.asterisk.org/svn/asterisk/branches/12


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2014-05-22 15:52:30 +00:00
Kinsey Moore
abd3e4040b Allow Asterisk to compile under GCC 4.10
This resolves a large number of compiler warnings from GCC 4.10 which
cause the build to fail under dev mode. The vast majority are
signed/unsigned mismatches in printf-style format strings.
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Merged revisions 413586 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@413589 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-05-09 22:49:26 +00:00
Jonathan Rose
57372e61d2 Parking: Add 'AnnounceChannel' argument to manager action 'Park'
(closes ASTERISK-23397)
Reported by: Denis
Review: https://reviewboard.asterisk.org/r/3446/
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2014-05-02 16:06:40 +00:00
Scott Griepentrog
80ef9a21b9 uniqueid: channel linkedid, ami, ari object creation with id's
Much needed was a way to assign id to objects on creation, and
much change was necessary to accomplish it.  Channel uniqueids
and linkedids are split into separate string and creation time
components without breaking linkedid propgation.  This allowed
the uniqueid to be specified by the user interface - and those
values are now carried through to channel creation, adding the
assignedids value to every function in the chain including the
channel drivers. For local channels, the second channel can be
specified or left to default to a ;2 suffix of first.  In ARI,
bridge, playback, and snoop objects can also be created with a
specified uniqueid.

Along the way, the args order to allocating channels was fixed
in chan_mgcp and chan_gtalk, and linkedid is no longer lost as
masquerade occurs.

(closes issue ASTERISK-23120)
Review: https://reviewboard.asterisk.org/r/3191/
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2014-03-07 15:47:55 +00:00
Kevin Harwell
28c0cb28d0 channel locking: Add locking for channel snapshot creation
Original commit message by mmichelson (asterisk 12 r403311):

"This adds channel locks around calls to create channel snapshots as well
as other functions which operate on a channel and then end up
creating a channel snapshot. Functions that expect the channel to be
locked prior to being called have had their documentation updated to
indicate such."

The above was initially committed and then reverted at r403398.  The problem
was found to be in core_local.c in the publish_local_bridge_message function.
The ast_unreal_lock_all function locks and adds a reference to the returned
channels and while they were being unlocked they were not being unreffed when
no longer needed.  Fixed by unreffing the channels.

Also in bridge.c a lock was obtained on "other->chan", but then an attempt was
made to unlock "other" and not the previously locked channel.  Fixed by
unlocking "other->chan"

(closes issue ASTERISK-22709)
Reported by: John Bigelow
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2013-12-18 20:33:37 +00:00
Jonathan Rose
63b2c28c4b Transfers: Make Asterisk set ATTENDEDTRANSFER/BLINDTRANSFER more reliably
There were still a few cases in which ATTENDEDTRANSFER and BLINDTRANSFER
wouldn't be set on channels involved with blind and attended transfers.
This would happen with features that were initialized by channel driver
specific mechanisms in multiparty calls. This patch resolves those cases
while attempted to keep the behavior for setting those variables as
consistent as possible.

(closes issue AFS-24)
Review: https://reviewboard.asterisk.org/r/3040/
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2013-12-13 20:13:22 +00:00
David M. Lee
1212906351 Reverting r403311. It's causing ARI tests to hang.
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2013-12-05 22:10:20 +00:00
Mark Michelson
8e8b329e14 Add channel locking for channel snapshot creation.
This adds channel locks around calls to create channel snapshots as well
as other functions which operate on a channel and then end up
creating a channel snapshot. Functions that expect the channel to be
locked prior to being called have had their documentation updated to
indicate such.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@403314 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-12-03 17:07:29 +00:00
Richard Mudgett
8f03a463e1 res_parking: Give parking timeout comebacktoorigin channel DTMF features.
Parking timeouts did not set any DTMF features for the channel calling the
parker back.

* Added code to set the parkedcalltransfers, parkedcallreparking,
parkedcallhangup, and parkedcallrecording options appropriately for the
channels when a parking timeout occurs.  The recall channel DTMF options
are set using the BRIDGE_FEATURES channel variable to allow the other
timeout options to have the DTMF features available.

(closes issue ASTERISK-22630)
Reported by: Kevin Harwell

Review: https://reviewboard.asterisk.org/r/2942/
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@401423 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-10-22 16:33:16 +00:00
David M. Lee
2de42c2a25 Multiple revisions 399887,400138,400178,400180-400181
........
  r399887 | dlee | 2013-09-26 10:41:47 -0500 (Thu, 26 Sep 2013) | 1 line
  
  Minor performance bump by not allocate manager variable struct if we don't need it
........
  r400138 | dlee | 2013-09-30 10:24:00 -0500 (Mon, 30 Sep 2013) | 23 lines
  
  Stasis performance improvements
  
  This patch addresses several performance problems that were found in
  the initial performance testing of Asterisk 12.
  
  The Stasis dispatch object was allocated as an AO2 object, even though
  it has a very confined lifecycle. This was replaced with a straight
  ast_malloc().
  
  The Stasis message router was spending an inordinate amount of time
  searching hash tables. In this case, most of our routers had 6 or
  fewer routes in them to begin with. This was replaced with an array
  that's searched linearly for the route.
  
  We more heavily rely on AO2 objects in Asterisk 12, and the memset()
  in ao2_ref() actually became noticeable on the profile. This was
  #ifdef'ed to only run when AO2_DEBUG was enabled.
  
  After being misled by an erroneous comment in taskprocessor.c during
  profiling, the wrong comment was removed.
  
  Review: https://reviewboard.asterisk.org/r/2873/
........
  r400178 | dlee | 2013-09-30 13:26:27 -0500 (Mon, 30 Sep 2013) | 24 lines
  
  Taskprocessor optimization; switch Stasis to use taskprocessors
  
  This patch optimizes taskprocessor to use a semaphore for signaling,
  which the OS can do a better job at managing contention and waiting
  that we can with a mutex and condition.
  
  The taskprocessor execution was also slightly optimized to reduce the
  number of locks taken.
  
  The only observable difference in the taskprocessor implementation is
  that when the final reference to the taskprocessor goes away, it will
  execute all tasks to completion instead of discarding the unexecuted
  tasks.
  
  For systems where unnamed semaphores are not supported, a really
  simple semaphore implementation is provided. (Which gives identical
  performance as the original taskprocessor implementation).
  
  The way we ended up implementing Stasis caused the threadpool to be a
  burden instead of a boost to performance. This was switched to just
  use taskprocessors directly for subscriptions.
  
  Review: https://reviewboard.asterisk.org/r/2881/
........
  r400180 | dlee | 2013-09-30 13:39:34 -0500 (Mon, 30 Sep 2013) | 28 lines
  
  Optimize how Stasis forwards are dispatched
  
  This patch optimizes how forwards are dispatched in Stasis.
  
  Originally, forwards were dispatched as subscriptions that are invoked
  on the publishing thread. This did not account for the vast number of
  forwards we would end up having in the system, and the amount of work it
  would take to walk though the forward subscriptions.
  
  This patch modifies Stasis so that rather than walking the tree of
  forwards on every dispatch, when forwards and subscriptions are changed,
  the subscriber list for every topic in the tree is changed.
  
  This has a couple of benefits. First, this reduces the workload of
  dispatching messages. It also reduces contention when dispatching to
  different topics that happen to forward to the same aggregation topic
  (as happens with all of the channel, bridge and endpoint topics).
  
  Since forwards are no longer subscriptions, the bulk of this patch is
  simply changing stasis_subscription objects to stasis_forward objects
  (which, admittedly, I should have done in the first place.)
  
  Since this required me to yet again put in a growing array, I finally
  abstracted that out into a set of ast_vector macros in
  asterisk/vector.h.
  
  Review: https://reviewboard.asterisk.org/r/2883/
........
  r400181 | dlee | 2013-09-30 13:48:57 -0500 (Mon, 30 Sep 2013) | 28 lines
  
  Remove dispatch object allocation from Stasis publishing
  
  While looking for areas for performance improvement, I realized that an
  unused feature in Stasis was negatively impacting performance.
  
  When a message is sent to a subscriber, a dispatch object is allocated
  for the dispatch, containing the topic the message was published to, the
  subscriber the message is being sent to, and the message itself.
  
  The topic is actually unused by any subscriber in Asterisk today. And
  the subscriber is associated with the taskprocessor the message is being
  dispatched to.
  
  First, this patch removes the unused topic parameter from Stasis
  subscription callbacks.
  
  Second, this patch introduces the concept of taskprocessor local data,
  data that may be set on a taskprocessor and provided along with the data
  pointer when a task is pushed using the ast_taskprocessor_push_local()
  call. This allows the task to have both data specific to that
  taskprocessor, in addition to data specific to that invocation.
  
  With those two changes, the dispatch object can be removed completely,
  and the message is simply refcounted and sent directly to the
  taskprocessor.
  
  Review: https://reviewboard.asterisk.org/r/2884/
........

Merged revisions 399887,400138,400178,400180-400181 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@400186 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-09-30 18:55:27 +00:00
Richard Mudgett
2a371cd80b Restore Dial, Queue, and FollowMe 'I' option support.
The Dial, Queue, and FollowMe applications need to inhibit the bridging
initial connected line exchange in order to support the 'I' option.

* Replaced the pass_reference flag on ast_bridge_join() with a flags
parameter to pass other flags defined by enum ast_bridge_join_flags.

* Replaced the independent flag on ast_bridge_impart() with a flags
parameter to pass other flags defined by enum ast_bridge_impart_flags.

* Since the Dial, Queue, and FollowMe applications are now the only
callers of ast_bridge_call() and ast_bridge_call_with_flags(), changed the
calling contract to require the initial COLP exchange to already have been
done by the caller.

* Made all callers of ast_bridge_impart() check the return value.  It is
important.  As a precaution, I also made the compiler complain now if it
is not checked.

* Did some cleanup in parking_tests.c as a result of checking the
ast_bridge_impart() return value.

An independent, but associated change is:
* Reduce stack usage in ast_indicate_data() and add a dropping redundant
connected line verbose message.

(closes issue ASTERISK-22072)
Reported by: Joshua Colp

Review: https://reviewboard.asterisk.org/r/2845/
........

Merged revisions 399136 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@399138 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-09-13 22:19:23 +00:00
Richard Mudgett
477dea4661 Bridge API: Set a cause code on a channel when it is ejected from a bridge.
The cause code needs to be passed from the disconnecting channel to the
bridge peers if the disconnecting channel dissolves the bridge.

* Made the call to an app_agent_pool agent disconnect with the busy cause
code if the agent does not ack the call in time or hangs up before acking
the call.

(closes issue ASTERISK-22042)
Reported by: Matt Jordan

Review: https://reviewboard.asterisk.org/r/2772/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@397472 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-08-22 21:09:52 +00:00
Richard Mudgett
d213dfa30f Fix several interrelated issues dealing with the holding bridge technology.
* Added an option flags parameter to interval hooks.  Interval hooks now
can specify if the callback will affect the media path or not.

* Added an option flags parameter to the bridge action custom callback.
The action callback now can specify if the callback will affect the media
path or not.

* Made the holding bridge technology reexamine the participant idle mode
option whenever the entertainment is restarted.

* Fixed app_agent_pool waiting agents needlessly starting and stopping MOH
every second by specifying the heartbeat interval hook as not affecting
the media path.

* Fixed app_agent_pool agent alert from restarting the MOH after the alert
beep.  The agent entertainment is now changed from MOH to silence after
the alert beep.

* Fixed holding bridge technology to defer starting the entertainment.  It
was previously a mixture of immediate and deferred.

* Fixed holding bridge technology to immediately stop the entertainment.
It was previously a mixture of immediate and deferred.  If the channel
left the bridging system, any deferred stopping was discarded before
taking effect.

* Miscellaneous holding bridge technology rework coding improvements.

Review: https://reviewboard.asterisk.org/r/2761/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@397294 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-08-21 15:51:19 +00:00
Kinsey Moore
56aea1c030 Allow res_parking to be unloadable
This change protects accesses of res_parking such that it can unload
safely once transient uses of its registered functions are complete.
The parking API has been restructured such that its consumers do not
have access to the vtable exposed by the parking provider, but instead
route through stubs to prevent consumers from holding on to function
pointers.

This adds calls to all the parking unload functions and moves
application loading and unloading into functions in
parking_applications.c similar to the rest of the parts of res_parking.

Review: https://reviewboard.asterisk.org/r/2763/
(closes issue ASTERISK-22142)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@396890 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-08-17 15:01:54 +00:00
Richard Mudgett
e47d3db365 Doxygen comment tweaks.
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@396857 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-08-16 17:33:21 +00:00
Richard Mudgett
6b062d9afd Parking: Eliminate local channel name hack to get peer channel.
(closes issue ASTERISK-22034)
Reported by: Matt Jordan


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@396802 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-08-15 20:09:10 +00:00
Matthew Jordan
5c4b482471 Support externally initiated parking requests; remove some dead code
This patch does the following:
 * It adds support for externally initiated parking requests. In particular,
   chan_skinny has a protocol level message that initiates a call park.
   This patch now supports that option, as well as the protocol specific
   mechanisms in chan_dahdi/sig_analog and chan_mgcp.
 * A parking bridge features virtual table has been added that provides
   access to the parking functionality that the Bridging API needs. This
   includes requests to park an entire 'call' (with little or no additional
   information, thank you chan_skinny), perform a blind transfer to a parking
   extension, determine if an extension is a parking extension, as well as the
   actual "do the parking" request from the Bridging API.
 * Refactoring in chan_mgcp, chan_skinny, and chan_dahdi to make use of the new
   functions
 * The removal of some - but not all - dead parking code from features.c

This also fixed blind transferring a multi-party bridge to a parking lot (which
was implemented, but had at least one code path where using the parking features
kK might not have worked)

Review: https://reviewboard.asterisk.org/r/2710

(closes issue ASTERISK-22134)
Reported by: Matt Jordan



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@396028 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-08-01 20:55:17 +00:00
Richard Mudgett
c017d5e6a3 Remove the unsafe bridge parameter from ast_bridge_hook_callback's.
Most hook callbacks did not need the bridge parameter.  The pointer value
could become invalid if the channel is moved to another bridge while it is
executing.

* Fixed some issues in feature_attended_transfer() as a result.

* Reduce the bridge inhibit count in
attended_transfer_properties_shutdown() after it has restored the bridge
channel hooks.

* Removed basic bridge requirement on feature_blind_transfer().  It does
not require the basic bridge like feature_attended_transfer().


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395574 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-07-26 21:34:23 +00:00
Richard Mudgett
50aba6be36 Improved feature limits interval hook implementaion.
* Fixed feature limits to not use special members of struct
ast_bridge_features.

* Fixed memory leak in off nominal paths of bridge_builtin_set_limits().

* Fixed off nominal path in ast_bridge_features_limits_construct() freeing
unallocated memory if it was not called by bridge_builtin_set_limits().

* Made bridge_builtin_interval_features.so unloadable.

* Simplified parking's use of its duration interval hook.

* Made BridgeWait S option not depend upon another module being loaded.

(closes issue ASTERISK-22107)
Reported by: Matt Jordan

Review: https://reviewboard.asterisk.org/r/2701/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395559 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-07-26 21:10:24 +00:00
Matthew Jordan
cafc115896 A great big renaming patch
This patch renames the bridging* files to bridge*. This may seem pedantic
and silly, but it fits better in line with current Asterisk naming conventions:
* channel is not "channeling"
* monitor is not "monitoring"
etc.

A bridge is an object. It is a first class citizen in Asterisk. "Bridging" is
the act of using a bridge on a set of channels - and the API that fulfills that
role is more than just the action.

(closes issue ASTERISK-22130)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395378 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-07-25 04:06:32 +00:00
Matthew Jordan
9d8a5ceb02 Move after bridge callbacks into their own file
One more major refactoring to go.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395367 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-07-25 02:20:23 +00:00
Matthew Jordan
1d1650f572 Update bridge_channel refactorings; export bridge_ symbol
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395295 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-07-24 19:24:09 +00:00
Matthew Jordan
d91dc6d1a8 Perform the initial renaming of the Bridging API
This patch does the following:
 * It pulls out bridge_channel and puts it into its own translation unit
 * It adds public and protected headers for bridging_channel. Protected
   functions are appropriate only for the Bridging API and sub-classes of a
   bridge.

(issue ASTERISK-22130)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395253 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-07-24 15:38:18 +00:00
Jonathan Rose
93ed5ef0ff res_parking: Replace Parker snapshots with ParkerDialString
This process also involved a large amount of rework regarding how to redial
the Parker when a channel leaves a parking lot due to timeout. An attended
transfer channel variable has been added to attended transfers to extensions
that will eventually park (but haven't at the time of transfer) as well.
This resolves one of the two BUGBUG comments remaining in res_parking.

(issues ASTERISK-21877)
Reported by: Matt Jordan
Review: https://reviewboard.asterisk.org/r/2638/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@393704 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-07-04 18:46:56 +00:00
Jonathan Rose
854c4c64fe res_parking: Add Parking manager action to the new parking system
(closes issue ASTERISK-21641)
Reported by: Matt Jordan
Review: https://reviewboard.asterisk.org/r/2573/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@392915 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-06-25 22:28:22 +00:00
Richard Mudgett
cd40e179a9 Fix potential bridge hook resource leak if the hook install fails.
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@392335 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-06-20 17:21:40 +00:00
Jonathan Rose
8954661207 res_parking: Automatically generate extensions, hints, etc.
(closes issue ASTERISK-21645)
Reported by: Matt Jordan
Review: https://reviewboard.asterisk.org/r/2545/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@390849 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-06-07 16:07:18 +00:00
Mark Michelson
94d8d0468f Remove remaining traces of remove_on_pull from hooks and hook APIs.
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@390550 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-06-05 19:19:48 +00:00
Richard Mudgett
3d63833bd6 Merge in the bridge_construction branch to make the system use the Bridging API.
Breaks many things until they can be reworked.  A partial list:
chan_agent
chan_dahdi, chan_misdn, chan_iax2 native bridging
app_queue
COLP updates
DTMF attended transfers
Protocol attended transfers


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@389378 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-05-21 18:00:22 +00:00