asterisk

Commit Graph

Author	SHA1	Message	Date
Alexander Traud	9440f6ec58	main: Fix for Doxygen. ASTERISK-29763 Change-Id: Ib8359e3590a9109eb04a5376559d040e5e21867e	4 years ago
Josh Soref	f382775241	main: Spelling fixes Correct typos of the following word families: analysis nuisance converting although transaction desctitle acquire update evaluate thousand this dissolved management integrity reconstructed decrement further on irrelevant currently constancy anyway unconstrained featuregroups right larger evaluated encumbered languages digits authoritative framing blindxfer tolerate traverser exclamation perform permissions rearrangement performing processing declension happily duplicate compound hundred returns elicit allocate actually paths inheritance atxferdropcall earlier synchronization multiplier acknowledge across against thousands joyous manipulators guaranteed emulating soundfile ASTERISK-29714 Change-Id: I926ba4b11e9f6dd3fdd93170ab1f9b997910be70	4 years ago
George Joseph	c2adeb9dc2	taskprocessor: Enable subsystems and overload by subsystem To prevent one subsystem's taskprocessors from causing others to stall, new capabilities have been added to taskprocessors. * Any taskprocessor name that has a '/' will have the part before the '/' saved as its "subsystem". Examples: "sorcery/acl-0000006a" and "sorcery/aor-00000019" will be grouped to subsystem "sorcery". "pjsip/distributor-00000025" and "pjsip/distributor-00000026" will bn grouped to subsystem "pjsip". Taskprocessors with no '/' have an empty subsystem. * When a taskprocessor enters high-water alert status and it has a non-empty subsystem, the subsystem alert count will be incremented. * When a taskprocessor leaves high-water alert status and it has a non-empty subsystem, the subsystem alert count will be decremented. * A new api ast_taskprocessor_get_subsystem_alert() has been added that returns the number of taskprocessors in alert for the subsystem. * A new CLI command "core show taskprocessor alerted subsystems" has been added. * A new unit test was addded. REMINDER: The taskprocessor code itself doesn't take any action based on high-water alerts or overloading. It's up to taskprocessor users to check and take action themselves. Currently only the pjsip distributor does this. * A new pjsip/global option "taskprocessor_overload_trigger" has been added that allows the user to select the trigger mechanism the distributor uses to pause accepting new requests. "none": Don't pause on any overload condition. "global": Pause on ANY taskprocessor overload (the default and current behavior) "pjsip_only": Pause only on pjsip taskprocessor overloads. * The core pjsip pool was renamed from "SIP" to "pjsip" so it can be properly grouped into the "pjsip" subsystem. * stasis taskprocessor names were changed to "stasis" as the subsystem. * Sorcery core taskprocessor names were changed to "sorcery" to match the object taskprocessors. Change-Id: I8c19068bb2fc26610a9f0b8624bdf577a04fcd56	7 years ago
Corey Farrell	021ce938ca	astobj2: Remove legacy ao2_container_alloc routine. Replace usage of ao2_container_alloc with ao2_container_alloc_hash or ao2_container_alloc_list. Remove ao2_container_alloc macro. Change-Id: I0907d78bc66efc775672df37c8faad00f2f6c088	7 years ago
Corey Farrell	5ab94d2a3e	taskprocessor: Warn on unused result from pushing task. Add attribute_warn_unused_result to ast_taskprocessor_push, ast_taskprocessor_push_local and ast_threadpool_push. This will help ensure we perform the necessary cleanup upon failure. Change-Id: I7e4079bd7b21cfe52fb431ea79e41314520c3f6d	7 years ago
Corey Farrell	f06de6900e	threadpool: Eliminate pointless AO2 usage. thread_worker_pair, set_size_data and task_pushed_data structures are allocated with AO2 objects, passed to a taskprocessor, then released. They never have multiple owners or use locking so AO2 only adds overhead. Change-Id: I2204d2615d9d952670fcb48e0a9c0dd1a6ba5036	7 years ago
Sean Bright	fd0ca1c3f9	Remove as much trailing whitespace as possible. Change-Id: I873c1c6d00f447269bd841494459efccdd2c19c0	8 years ago
Corey Farrell	1b80ffa495	Fix Common Typo's. Fix instances of: * Retreive * Recieve * other then * different then * Repeated words ("the the", "an an", "and and", etc). * othterwise, teh ASTERISK-24198 #close Change-Id: I3809a9c113b92fd9d0d9f9bac98e9c66dc8b2d31	8 years ago
Corey Farrell	fd54d69feb	threadpool: Fix leak in ast_threadpool_serializer_group error path. ast_threadpool_serializer_group leaks a reference to ser when listener is allocated but tps is not. Although listener takes the reference to ser cleanup functions are not run without tps. ASTERISK-26191 #close Change-Id: Ie3ccf69a3f1e676c2ef62a77067c0cb57dc9a585	9 years ago
Corey Farrell	80ff2c2540	threadpool: Fix potential data race. worker_start checked for ZOMBIE status without holding a lock. All other read/write of worker status are performed with a lock, so this check should do the same. ASTERISK-25777 #close Change-Id: I5e33685a5c26fdb300851989a3b82be8c4e03781	10 years ago
Mark Michelson	264c74aa22	res_pjsip: Deny requests when threadpool queue is backed up. We have observed situations where the SIP threadpool may become deadlocked. However, because incoming traffic is still arriving, the SIP threadpool's queue can continue to grow, eventually running the system out of memory. This change makes it so that incoming traffic gets rejected with a 503 response if the queue is backed up too much. Change-Id: I4e736d48a2ba79fd1f8056c0dcd330e38e6a3816	10 years ago
Joshua Colp	2954354404	threadpool: Handle worker thread transitioning to dead when going active. This change adds handling of dead worker threads when moving them to be active. When this happens the worker thread is removed from both the active and idle threads container. If no threads are able to be moved to active then the pool grows as configured. A unit test has also been added which thrashes the idle timeout and thread activation to exploit any race conditions between the two. ASTERISK-25546 #close Change-Id: I6c455f9a40de60d9e86458d447b548fb52ba1143	10 years ago
Richard Mudgett	af4ae3095e	threadpool, res_pjsip: Add serializer group shutdown API calls. A module trying to unload needs to wait for all serializers it creates and uses to complete processing before unloading. ASTERISK-24907 Reported by: Kevin Harwell Change-Id: I8c80b90f2f82754e8dbb02ddf3c9121e5e966059	11 years ago
Richard Mudgett	30cd559345	DNS: Need to use the same serializer for a pjproject SIP transaction. All send/receive processing for a SIP transaction needs to be done under the same threadpool serializer to prevent reentrancy problems inside pjproject when using an external DNS resolver to process messages for the transaction. * Add threadpool API call to get the current serializer associated with the worker thread. * Pick a serializer from a pool of default serializers if the caller of res_pjsip.c:ast_sip_push_task() does not provide one. This is a simple way to ensure that all outgoing SIP request messages are processed under a serializer. Otherwise, any place where a pushed task is done that would result in an outgoing out-of-dialog request would need to be modified to supply a serializer. Serializers from the default serializer pool are picked in a round robin sequence for simplicity. A side effect is that the default serializer pool will limit the growth of the thread pool from random tasks. This is not necessarily a bad thing. * Made pjsip_resolver.c use the requesting thread's serializer to execute the async callback. * Made pjsip_distributor.c save the thread's serializer name on the outgoing request tdata struct so the response can be processed under the same serializer. ASTERISK-25115 #close Reported by: John Bigelow Change-Id: Iea71c16ce1132017b5791635e198b8c27973f40a	11 years ago
Richard Mudgett	9d2bc0675a	threadpool.c: Minor cleanup fixes. * Fix threadpool_alloc() prototype. * Add missing off-nominal NULL check of pool in threadpool_alloc(). * searializer_create() does not need to create the object with a lock as the lock is not used. ........ Merged revisions 424096 from http://svn.asterisk.org/svn/asterisk/branches/12 ........ Merged revisions 424097 from http://svn.asterisk.org/svn/asterisk/branches/13 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@424098 65c4cc65-6c06-0410-ace0-fbb531ad65f3	11 years ago
Mark Michelson	33eb15a242	Fix threadpool rapid growth problem. When a threadpool is set to autoincrement its threadcount, an issue may arise when multiple tasks are queued at once into the threadpool. Since threads start active, each new task would result in autoincrementing the thread count. So if all threads were active, and a thread's autoincrement value were 5, then 3 new tasks would result in 15 threads being created even though the initial autoincrement was sufficient to handle the number of tasks. This change introduces three behavior changes: 1) New threads in the threadpool start idle instead of active. 2) When a threadpool autoincrements, one thread is activated after the growth. 3) When a threadpool's size is incremented manually, all added threads are activated. For a more detailed explanation about the changes, please see the Review Board link at the bottom of this commit. Review: https://reviewboard.asterisk.org/r/2629 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@392318 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	74f2318051	Merge the pimp_my_sip branch into trunk. The pimp_my_sip branch is being merged at this point because it offers basic functionality, and from an API standpoint, things are complete. SIP work is not feature-complete; however, with the completion of the SUBSCRIBE/NOTIFY API, all APIs (except a PUBLISH API) have been created, and thus it is possible for developers to attempt to create new SIP work. API documentation can be found in the doxygen in the code, but usability documentation is still lacking. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@386540 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
David M. Lee	3f0ea90ce6	Changing log level of "Not changing threadpool size" from notice to debug. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@382648 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Kinsey Moore	0366f7ca77	Fix ref leak in threadpool.c If ast_threadpool_set_size with a size equal to the current size, a reference to a set_size_data structure would be leaked. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@382555 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Kinsey Moore	d182115fcb	Resolve a ref leak in threadpool.c Ownership of the listener reference is not transferred because the listener is reffed when placed into the taskprocessor. Ensure that the listener is dereffed properly. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@382489 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Richard Mudgett	855bb334c8	threadpool: Make ast_threadpool_push() return -1 if shutting_down git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@382295 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Richard Mudgett	e2832f18bc	threadpool: Whitespace and comment corrections. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@382294 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
David M. Lee	222e8a3afb	Add a serializer interface to the threadpool This patch adds the ability to create a serializer from a thread pool. A serializer is a ast_taskprocessor with the same contract as a default taskprocessor (tasks execute serially) except instead of executing out of a dedicated thread, execution occurs in a thread from a ast_threadpool. Think of it as a lightweight thread. While it guarantees that each task will complete before executing the next, there is no guarantee as to which thread from the pool individual tasks will execute. This normally only matters if your code relys on thread specific information, such as thread locals. This patch also fixes a bug in how the 'was_empty' parameter is computed for the push callback, and gets rid of the unused 'shutting_down' field. Review: https://reviewboard.asterisk.org/r/2323/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@381326 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	84c50fde1f	Address David's latest feedback on reviewboard: * Add a max_size option for threadpools. Also added a test for this option. * Fixed comments to be more accurate and have fewer typos. * Updated copyright dates on new files. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@379375 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	967e380ba8	Make the threadpool listener opaque. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@379126 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	663479a558	Make ast_taskprocessor_listener opaque. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@379125 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	03e89247de	Address further review feedback from David Lee. * Clarify some documentation * Change copyright date of taskprocessor files * Address potential issue of creating taskprocessor with listener if taskprocessor with that name exists already git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@379124 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	c6bc51ef28	Make the initial size of the threadpool part of the options passed in. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@379123 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	edc2e4dac0	Remove threadpool listener alloc and destroy callbacks. This replaces the destroy callback with a shutdown callback instead. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@379122 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	65c7d6e2c3	Remove alloc and destroy callbacks from the taskprocessor. Now user data is allocated by the creator of the taskprocessor listener and that user data is passed into ast_taskprocessor_listener_alloc(). Similarly, freeing of the user data is left up to the user himself. He can free the data when the taskprocessor shuts down, or he can choose to hold onto it if it makes sense to do so. This, unsurprisingly, makes threadpool allocation a LOT cleaner now. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@379120 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	bdd8da406b	Address review board feedback from Matt and Richard * Remove extraneous whitespace * Bump up debug levels of messages and add identifying info to messages. * Account for potential failures of ao2_link() * Add additional test and some more test data * Add some comments in places where they could be useful * Make threadpool listeners and their callbacks optional git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@378652 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	7995bc63c7	Some general cleanup, plus we now send state changes when threads activate. This is now ready for review board, imo! git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377805 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	2abda64003	Add threadpool option version check into threadpool creation routine. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377804 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	8760e32ae3	Add auto-increment option and accompanying test. This allows for the threadpool to automatically grow if tasks are pushed to it and no idle threads are currently available. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377803 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	29fc122783	Some documentation fixes and function call name fixes. The documentation for taskprocessors was incorrect with regards to when a listener's alloc callback was called. I also made the names of queued function calls in the threadpool more uniform. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377802 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	1310e659bd	Solve the issue about the "CHANGE THIS" and "XXX CHANGE THIS XXX" taskprocessor names. Unfortunately, this required a taskprocessor listener change that makes listener allocation utterly silly. I'm going to change the scheme so that allocation of taskprocessor listeners is done internally within taskprocessor code. This will make it parallel with threadpool code, which is a good thing. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377687 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	64deed062a	Add threadpool options and accompanying test. The only test added so far is an idle thread timeout option. This will greatly aid threadpool users who wish to maintain a threadpool by allowing for idle threads to die out as necessary. Test passes. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377580 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	5dd22df050	Improve shutdown procedure. This helps tests to pass more often than before. They are far less likely to queue extra processes into the control taskprocessor since they are prevented once the threadpool begins to shut down. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377578 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	03d617040a	Add safeguards to ensure we don't improperly access a destroyed taskprocessor. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377556 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	7be7baba30	Remove unnecessary debugging and add some useful debugging. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377476 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	293b18ecce	Create longer thread destruction test. This one involves shrinking the threadpool in such a way that both idle and active threads are affected. This test made me re-realize why the zombie state exists, so I re-added it. We don't want to clog up the control taskprocessor by waiting on active threads to complete what they are doing. Instead, we mark them as zombies so that when they are done, they can clean themselves up properly. Without the zombie state available, the new test actually will deadlock. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377474 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	3a25935f7d	Fix infinite looping and crash problem. MALLOC_DEBUG is complaining about corrupted memory on taskprocessor listeners, but I'm not seeing it, nor is valgrind. Not sure what's up there. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377377 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	4590bfd93d	Add new threadpool test and fix some taskprocessor bugs. The new thread creation test fails because Asterisk locks up while trying to lock a taskprocessor. While trying to debug that, I found a race condition during taskprocessor creation where a default taskprocessor listener could try to operate on a partially started taskprocessor. This was fixed by adding a new callback to taskprocessor listeners. Then while testing that change, I found some bugs in the taskprocessor tests where I was not properly unlocking when done with a lock. Scoped locks have spoiled me a bit. I still have not figured out why the threadpool thread creation test is locking up. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377368 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	9445402925	It helps if we actually assign the listener to the pool. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377352 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	c32634e0dd	Add initial simple threadpool test. This one simply pushes a task into the threadpool and ensures that the listener gets the callbacks expected. It currently crashes, so I need to figure out what's wrong. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377351 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	cc63d2c380	Add better listener support. Add some parameters to listener callbacks. Add alloc and destroy callbacks for listeners. Add public function for allocating a listener. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377226 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	2158005bdb	Remove zombie state from threadpool altogether. After giving it some consideration, there's no real use for zombie threads. Listeners can't really use the current number of zombie threads as a way of gauging activity, zombifying threads is just an extra step before they die that really serves no purpose, and since there's no way to re-animate zombies, the operation does not need to be around. I also fixed up some miscellaneous compilation errors that were lingering from some past revisions. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377211 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	c16371fab6	Simplify threadpool refcounting a bit. Since threadpool shutdown is very strictly controlled, there is no need to be so precise with reference counts in queued operations. Since the threadpool shuts down its own control taskprocessor before doing anything else destructive, it can be guaranteed that all queued tasks will have a valid pointer to the pool. This meant that some destructor functions for helper structs could be removed entirely. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377210 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	a37fb2e8c8	Add some doxygen and rearrange code. git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377209 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago
Mark Michelson	66fe664c00	Fix a few miscellaneous things * Renamed some taskprocessor listener callbacks * Fixed what would become a refcounting issue for pools * Removed some XXX comments from allocation failure points git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377061 65c4cc65-6c06-0410-ace0-fbb531ad65f3	13 years ago

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53 Commits (394ffc27ea7133eb6d89eb1a6ea963ed43b35ccc)