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path: root/src/protocol/survey0/survey.c
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* fixes #1345 Restructure the source treeGarrett D'Amore2021-01-01
| | | | | This is not quite complete, but it sets the stage for other protocols (such as zmq or mqtt) to be added to the project.
* fixes #1386 remove NNI_PROTO_FLAG_NOMSGQGarrett D'Amore2020-12-27
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* fixes #1289 zerotier should have it's own copy of the id hashing codeGarrett D'Amore2020-08-16
| | | | | | | | | | | fixes #1288 id allocation can overallocate fixes #1126 consider removing lock from idhash This substantially refactors the id hash code, giving a cleaner API, and eliminating a extra locking as well as some wasteful allocations. The ZeroTier code has it's own copy, that is 64-bit friendly, as the rest of the consumers need only a simpler 32-bit API.
* fixes #1171 message header could be inlined in the message structureGarrett D'Amore2020-02-26
| | | | | This uses a maximum 64-byte header and should avoid allocations and cache misses, leading to a small performance boost overall.
* Survey occasionally does not cancel properly.Garrett D'Amore2020-02-07
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* Convert SURVEY to use lmq and avoid message queues.Garrett D'Amore2020-02-06
| | | | | | This should make survey a little faster (which may be of benefit). But it will also enable us to eliminate one of the checks in the message queue code (#814), making everything else go faster.
* Survey test rewrite.Garrett D'Amore2020-02-05
| | | | | This bumps the coverage for survey up. While here fixed a few nits in req test, and removed the now pointless legacy survey and respond tests.
* fixes #1169 survey and xsurvey could use message cloningGarrett D'Amore2020-01-20
| | | | | | | | | | | fixes #1160 Consider limiting maximum hop count to 15 fixes #1098 Maximum maxTTL should be compile time defined This doesn't expose the max-MaxTTL in the CMakeList.txt -- there is really no reason anyone should be changing it. This does not yet inline the message header into the nni_msg_t, but it is my intention to do so soon, and eliminate most of the conditional cases for failure on inserting into the header.
* fixes #1142 raw mode use of message headers is inconsistentGarrett D'Amore2020-01-18
| | | | | | | | This correctly moves the entire protocol header for XREQ and XRESPONDENT protocols to the message header (not the body). This is where it should always have been. There is some small chance that applications which were coded to parse the header from the body will break. We don't think there are any such applications in use.
* fixes #1094 Consider in-lining task and aioGarrett D'Amore2020-01-08
| | | | | This only does it for rep, but it also has changes that should increase the overall test coverage for the REP protocol
* fixes #1105 pollable can be inlined, and use atomicsGarrett D'Amore2020-01-04
| | | | | This also introduces an nni_atomic_cas64 to help with lock-free designs. Some mechanical renaming was done in some of the protocols for spelling.
* fixes #1104 move allocation of protocol objects to common coreGarrett D'Amore2020-01-03
| | | | fixes #1103 respondent could inline backtrace
* fixes #831 Unify option structures, o_type is unusedGarrett D'Amore2018-12-29
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* move all public headers to include/nng/ folderGregor Burger2018-11-22
| | | | | | | | | | This change makes embedding nng + nggpp (or other projects depending on nng) in cmake easier. The header files are moved to a separate include directory. This also makes installation of the headers easier, and allows clearer identification of private vs public heade files. Some additional cleanups were performed by @gedamore, but the main credit for this change belongs with @gregorburger.
* fixes #568 Want a single reader/write lock on socket child objectsGarrett D'Amore2018-07-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | fixes #170 Make more use of reaper This is a complete restructure/rethink of how child objects interact with the socket. (This also backs out #576 as it turns out not to be needed.) While 568 says reader/writer lock, for now we have settled for a single writer lock. Its likely that this is sufficient. Essentially we use the single socket lock to guard lists of the socket children. We also use deferred deletion in the idhash to facilitate teardown, which means endpoint closes are no longer synchronous. We use the reaper to clean up objects when the reference count drops to zero. We make a special exception for pipes, since they really are not reference counted by their parents, and they are leaf objects anyway. We believe this addresses the main outstanding race conditions in a much more correct and holistic way. Note that endpoint shutdown is a little tricky, as it makes use of atomic flags to guard against double entry, and against recursive lock entry. This is something that would be nice to make a bit more obvious, but what we have is safe, and the complexity is at least confined to one place.
* fixes #540 nni_ep_opttype serves no purposeGarrett D'Amore2018-06-13
| | | | | | | | | | | | fixes #538 setopt should have an explicit chkopt routine fixes #537 Internal TCP API needs better name separation fixes #524 Option types should be "typed" This is a rework of the option management code, to make it both clearer and to prepare for further work to break up endpoints. This reduces a certain amount of dead or redundant code, and actually saves cycles when setting options, as some loops were not terminated that should have been.
* fixes #449 Want more flexible pipe eventsGarrett D'Amore2018-05-17
| | | | | | | | | This changes the signature of nng_pipe_notify(), and the associated events. The documentation is updated to reflect this. We have also broken the lock up so that we don't hold the master socket lock for some of these things, which may have beneficial impact on performance.
* fixes #419 want to nni_aio_stop without blocking (#428)Garrett D'Amore2018-05-15
| | | | | | | | | | | | | | | | * fixes #419 want to nni_aio_stop without blocking This actually introduces an nni_aio_close() API that causes nni_aio_begin to return NNG_ECLOSED, while scheduling a callback on the AIO to do an NNG_ECLOSED as well. This should be called in non-blocking close() contexts instead of nni_aio_stop(), and the cases where we call nni_aio_fini() multiple times are updated updated to add nni_aio_stop() calls on all "interlinked" aios before finalizing them. Furthermore, we call nni_aio_close() as soon as practical in the close path. This closes an annoying race condition where the callback from a lower subsystem could wind up rescheduling an operation that we wanted to abort.
* fixes #342 Want Surveyor/Respondent context supportGarrett D'Amore2018-04-24
| | | | | | | | | | | | | | | | fixes #360 core should nng_aio_begin before nng_aio_finish_error fixes #361 nng_send_aio should check for NULL message fixes #362 nni_msgq does not signal pollable on certain events This adds support for contexts for both sides of the surveyor pattern. Prior to this commit, the raw mode was completely broken, and there were numerous other bugs found and fixed. This integration includes *much* deeper validation of this pattern. Some changes to the core and other patterns have been made, where it was obvioius that we could make such improvements. (The obviousness stemming from the fact that RESPONDENT in particular is very closely derived from REP.)
* fixes #331 replace NNG_OPT_RAW option with constructorGarrett D'Amore2018-04-04
| | | | | | | | | | | | | This makes the raw mode something that is immutable, determined at socket construction. This is an enabling change for the separate context support coming soon. As a result, this is an API breaking change for users of the raw mode option (NNG_OPT_RAW). There aren't many of them out there. Cooked mode is entirely unaffected. There are changes to tests and documentation included.
* fixes #329 type checking not done for setoptGarrett D'Amore2018-04-04
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* fixes #301 String option handling for getoptGarrett D'Amore2018-03-20
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* fixes #296 Typed options should validate option typeGarrett D'Amore2018-03-20
| | | | | | | | | | | | | fixes #302 nng_dialer/listener/pipe_getopt_sockaddr desired This adds plumbing to pass and check the type of options all the way through. NNG_ZT_OPT_ORBIT is type UINT64, but you can use the untyped form to pass two of them if needed. No typed access for retrieving strings yet. I think this should allocate a pointer and copy that out, but that's for later.
* fixes #295 boolean options should use C99 bool typeGarrett D'Amore2018-03-18
| | | | | | | | | | | fixes #275 nng_pipe_getopt_ptr() missing? fixes #285 nng_setopt_ptr MIS fixes #297 nng_listener/dialer_close does not validate mode This change adds some missing APIs, and changes others. In particular, certain options are now of type bool, with size of just one. This is a *breaking* change for code that uses those options -- NNG_OPT_RAW, NNG_OPT_PAIR1_POLY, NNG_OPT_TLS_VERIFIED.
* fixes #234 Investigate enabling more verbose compiler warningsGarrett D'Amore2018-02-14
| | | | | | | We enabled verbose compiler warnings, and found a lot of issues. Some of these were even real bugs. As a bonus, we actually save some initialization steps in the compat layer, and avoid passing some variables we don't need.
* fixes #173 Define public HTTP server APIGarrett D'Amore2018-02-01
| | | | | | | | | | | | | | | | | | | | | | | This introduces enough of the HTTP API to support fully server applications, including creation of websocket style protocols, pluggable handlers, and so forth. We have also introduced scatter/gather I/O (rudimentary) for aios, and made other enhancements to the AIO framework. The internals of the AIOs themselves are now fully private, and we have eliminated the aio->a_addr member, with plans to remove the pipe and possibly message members as well. A few other minor issues were found and fixed as well. The HTTP API includes request, response, and connection objects, which can be used with both servers and clients. It also defines the HTTP server and handler objects, which support server applications. Support for client applications will require a client object to be exposed, and that should be happening shortly. None of this is "documented" yet, bug again, we will follow up shortly.
* fixes #196 surveyor pattern hangs after second surveyGarrett D'Amore2018-01-09
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* fixes #147 surveyor protocol needs NNG_OPT_MAXTTLGarrett D'Amore2017-11-03
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* fixes #143 Protocols and transports should be "configurable"Garrett D'Amore2017-11-02
This makes all the protocols and transports optional. All of them except ZeroTier are enabled by default, but you can now disable them (remove from the build) with cmake options. The test suite is modified so that tests still run as much as they can, but skip over things caused by missing functionality from the library (due to configuration). Further, the constant definitions and prototypes for functions that are specific to transports or protocols are moved into appropriate headers, which should be included directly by applications wishing to use these. We have also added and improved documentation -- all of the transports are documented, and several more man pages for protocols have been added. (Req/Rep and Surveyor are still missing.)