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2012-05-25Implement SP wire protocolMartin Lucina
Implements the SP wire protocol, and infrastructure for legacy wire protocol support. Also added an XS_SERVICE_ID socket option to set the service id and renamed the XS_PROTOCOL option to XS_PATTERN_VERSION. The following pattern versions are supported: PAIR: v3 PUBSUB: v1 (legacy), v4 REQREP: v2 PIPELINE: v3 SURVEY: v2 Note that all existing pattern versions have been bumped by 1 to allow for use of legacy protocols (otherwise there would be no way to distinguish between e.g. PUBSUB v3 and PUBSUB v3 using SP). Signed-off-by: Martin Lucina <martin@lucina.net>
2012-05-01Revert "Implement protocol versioning (except PGM)"Martin Sustrik
This reverts commit 512f3a604924fec9d89e2b4bfd6f73aa66309fa7.
2012-04-29Implement protocol versioning (except PGM)Martin Lucina
Implements SP protocol versioning, legacy protocol support, and the following pattern protocol versions: PAIR: v2 PUBSUB: v1 (legacy), v3 REQREP: v1 PIPELINE: v2 SURVEY: v1 Engine support is only for stream_engine_t at this stage. Signed-off-by: Martin Lucina <martin@lucina.net>
2012-04-16Few trivial fixes to REQ/REP pattern.Martin Sustrik
- couple of comments adjusted - empty 'stack delimiter' message correctly closed - non-reachable function xrep_t::rollback() removed Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2012-03-26Handle duplicate identities decentlyMartin Sustrik
When connection with duplicate identity arrives it is ignored. Till now it resulted in assertion. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2012-02-26In case of duplicate identity XREP socket asserts.Martin Sustrik
This is a fail-fast mechanism to prevent undefined behaviour later on. In the future, the new connection should be closed in this case. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2012-02-16Full name of the project used in license headersMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2012-02-16poller_base_t renamed to io_thread_tMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2012-02-16io_thread_t merged with poller_base_tMartin Sustrik
The relationship of these two classes was 1:1. Thus one of them was obsolete. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2012-02-16Fix data loss for PUB/SUB and unidirectional transports (LIBZMQ-268)Martin Lucina
With the introduction of subscription forwarding, the first message sent on a PUB socket using a unidirectional transport (e.g. PGM) is always lost due to the "subscribe to all" being done asynchronously. This patch fixes the problem and also refactors the code to have a single point where the "subscribe to all" is performed. Signed-off-by: Martin Lucina <martin@lucina.net>
2012-02-16Invalid iterator not usedMartin Sustrik
Iterator was checked although the item it was pointing to was erased. Now it never happens. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2012-02-16ZeroMQ renamed to CrossroadsMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2012-02-16Socket ID addedMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-12-17Fix polling on XREP socketMartin Sustrik
When polling on XREP socket in incoming message part was prefetched, but not the identity of sender. The problem is fixed by this patch. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-11-15Bug in XREP and XREQ fixed (issue 280)Martin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-11-13Couple of bugs in XREP handling of identities fixed.Martin Sustrik
wq: Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-11-04Identities re-introducedMartin Sustrik
However, the "durable socket" behaviour wasn't re-added. Identities are used solely for routing in REQ/REP pattern. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-11-01Copyright dates adjusted to reflect realityMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-11-01LABELS and COMMANDs removedMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-10-31250bpm copyrights addedMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-10-31Revert the early dropping of request and replies for disconnected clientsMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-09-28Assert fixed in XREP & ROUTER when sending to terminating pipe (issue 258)Martin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-09-15Session class separated into socket-type-specific sessionsMartin Sustrik
This is a preliminary patch allowing for socket-type-specific functionality in the I/O thread. For example, message format can be checked asynchronously and misbehaved connections dropped straight away. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-09-03Improve error reporting in a minor wayMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-07-15ZMQ_IDENTITY socket option removedMartin Sustrik
This patch simplifies the whole codebase significantly, including dropping depedency on libuuid. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-07-09Drop outbound messages in XREP socket when SNDHWM is reachedMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-06-23Fix MSVC buildMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-06-23Outstanding requests dropped when requester dies (issue 190)Martin Sustrik
So far the requests in req/rep pattern were delivered to and processed by worker even though the original requester was dead. Thus, the worker processing replies with noone to deliver results to. This optimisation drops requests in two situations: 1. Queued inbound requests in XREP socket when peer disconnects. 2. Queued outbound requests in XREQ when socket is closed. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-06-22O(1) fair-queueing in XREP implementedMartin Sustrik
Up to now the complexity of fair-queueing in XREP was O(n). Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-06-22New wire format for REQ/REP patternMartin Sustrik
This patch introduces two changes: 1. 32-bit ID is used to identify the peer instead of UUID 2. REQ socket seeds the label stack with unique 32-bit request ID It also drops any replies with non-matching request ID Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-06-20LABEL flag added to the wire formatMartin Sustrik
So far there was no distinction between message parts used by 0MQ and message parts used by user. Now, the message parts used by 0MQ are marked as 'LABEL'. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-05-23Move the pipe termination code to socket_base_tMartin Sustrik
So far, the pipe termination code was spread among socket type classes, fair queuer, load balancer, etc. This patch moves all the associated logic to a single place. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-05-22Introduces bi-directional pipesMartin Sustrik
So far, there was a pair of unidirectional pipes between a socket and a session (or an inproc peer). This resulted in complex problems with half-closed states and tracking which inpipe corresponds to which outpipe. This patch doesn't add any functionality in itself, but is essential for further work on features like subscription forwarding. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-05-15Fixes warning when compiling with MSVC on Win64Martin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-05-08Fixed REP assert on missing envelopePieter Hintjens
Signed-off-by: Pieter Hintjens <ph@imatix.com>
2011-05-06urrent pipe pointer in XREP out of range -- fixed.Martin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-05-04Accessing an iterator after it is accessed is not valid.Tore Halvorsen
Moving the erase after the access and check agains current_id.
2011-05-02Current inpipe remains unchaged in XREP when other pipe terminatesMartin Sustrik
When an inpipe terminated within XREP, it was erased from the array and thus current_in (which is an index) pointed to a different element in the array. This caused problems when we were in the middle of reading a multipart message. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-04-21Message-related functionality factored out into msg_t class.Martin Sustrik
This patch addresses serveral issues: 1. It gathers message related functionality scattered over whole codebase into a single class. 2. It makes zmq_msg_t an opaque datatype. Internals of the class don't pollute zmq.h header file. 3. zmq_msg_t size decreases from 48 to 32 bytes. That saves ~33% of memory in scenarios with large amount of small messages. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-04-19Message validity is checked in the runtimeMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-03-16reset socket state when identity message cannot be written to xrepJon Dyte
Signed-off-by: Jon Dyte <jon@totient.co.uk>
2011-03-03Bug caused by interaction of REQ/REP routing and HWM fixed.Martin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-03-02The copyrights in file headers updated.Martin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2011-01-18Fix cppcheck warnings: Prefer prefix ++/-- operators for non-primitive types.Martin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2010-11-05slots renamed to tidsMartin Sustrik
Threads were so far identified by integers called 'slots'. This patch renames them to more comprehensible 'tid's (thread IDs). Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2010-10-30Name of "GNU Lesser Public License" corrected.Martin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2010-10-16ZMQ_LINGER socket option added.Martin Sustrik
1. ZMQ_LINGER option can be set/get 2. options are part of own_t base class rather than being declared separately by individual objects 3. Linger option is propagated with "term" command so that the newest value of it is used rather than the stored old one. 4. Session sets the linger timer if needed and terminates as soon as it expires. 5. Corresponding documentation updated. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2010-10-14To insert to associateive STL containers value_type used instead of make_pairMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2010-10-11Reverting commit 1d431190f50c86f62460Martin Sustrik
The patch was supposed to check that pipe writer sends messages in atomic fashion. However, it prevented the user to read half of a message and close the socket. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
2010-10-10When XREP silently drops message, it does not empty it -- fixedMartin Sustrik
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
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