mirror of
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2209 lines
78 KiB
Plaintext
2209 lines
78 KiB
Plaintext
0MQ version 4.3.4 stable, released on 2021/01/17
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================================================
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* New DRAFT (see NEWS for 4.2.0) socket option:
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- ZMQ_PRIORITY will set the SO_PRIORITY socket option on the underlying
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sockets. Only supported on Linux.
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See doc/zmq_setsockopt.txt and doc/zmq_getsockopt.txt for details.
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* Fixed #4113 - compilation errors on kFreeBSD and GNU/Hurd
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* Fixed #4086 - excessive amount of socket files left behind in Windows TMP
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directory
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* Fixed #4108 - regression that breaks using IPv6 link-local addresses on Linux
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* Fixed #4078 - compilation errors on Android
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* Fixed #4074 - compilation error with ulibc and libbsd
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* Fixed #4060 - stack overflow on Windows x64
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* Fixed #4051 - various compilation errors on Windows ARM 32bit
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* Fixed #4043 - various compilation warnings with XCode
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* Fixed #4038 - return value of zmq_ctx_get changed unintentionally
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0MQ version 4.3.3 stable, released on 2020/09/07
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================================================
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* Security advisories:
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* CVE-2020-15166: Denial-of-Service on CURVE/ZAP-protected servers by
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unauthenticated clients.
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If a raw TCP socket is opened and connected to an endpoint that is fully
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configured with CURVE/ZAP, legitimate clients will not be able to exchange
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any message. Handshakes complete successfully, and messages are delivered to
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the library, but the server application never receives them.
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For more information see the security advisory:
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https://github.com/zeromq/libzmq/security/advisories/GHSA-25wp-cf8g-938m
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* Stack overflow on server running PUB/XPUB socket (CURVE disabled).
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The PUB/XPUB subscription store (mtrie) is traversed using recursive
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function calls. In the remove (unsubscription) case, the recursive calls are
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NOT tail calls, so even with optimizations the stack grows linearly with the
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length of a subscription topic. Topics are under the control of remote
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clients - they can send a subscription to arbitrary length topics. An
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attacker can thus cause a server to create an mtrie sufficiently large such
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that, when unsubscribing, traversal will cause a stack overflow.
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For more information see the security advisory:
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https://github.com/zeromq/libzmq/security/advisories/GHSA-qq65-x72m-9wr8
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* Memory leak in PUB server induced by malicious client(s) without CURVE/ZAP.
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Messages with metadata are never processed by PUB sockets, but the metadata
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is kept referenced in the PUB object and never freed.
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For more information see the security advisory:
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https://github.com/zeromq/libzmq/security/advisories/GHSA-4p5v-h92w-6wxw
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* Memory leak in client induced by malicious server(s) without CURVE/ZAP.
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When a pipe processes a delimiter and is already not in active state but
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still has an unfinished message, the message is leaked.
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For more information see the security advisory:
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https://github.com/zeromq/libzmq/security/advisories/GHSA-wfr2-29gj-5w87
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* Heap overflow when receiving malformed ZMTP v1 packets (CURVE disabled).
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By crafting a packet which is not valid ZMTP v2/v3, and which has two
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messages larger than 8192 bytes, the decoder can be tricked into changing
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the recorded size of the 8192 bytes static buffer, which then gets overflown
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by the next message. The content that gets written in the overflown memory
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is entirely decided by the sender.
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For more information see the security advisory:
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https://github.com/zeromq/libzmq/security/advisories/GHSA-fc3w-qxf5-7hp6
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* Note for packagers: an external, self-contained sha1 library is now
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included in the source tree under external/sha1/ - it is licensed
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under BSD-3-Clause and thus it is fully compatible with libzmq's
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license.
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It is only used if WebSockets support is enabled, and if neither GnuTLS nor
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NSS are available.
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* Note for packagers: an internal reimplementation of strlcpy is now included,
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for wider platform compatibility.
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libbsd can be used and is enabled by default if available instead of the
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internal implementation, for better security maintenance in distros.
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* Note for packagers: ZeroMQConfig.cmake is now installed in the arch-dependent
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subdirectory - eg: /usr/lib/x86_64-linux-gnu/cmake/
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* New DRAFT (see NEWS for 4.2.0) socket type:
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- ZMQ_CHANNEL is a thread-safe alternative to ZMQ_PAIR.
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See doc/zmq_socket.txt for details.
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* New DRAFT (see NEWS for 4.2.0) socket option:
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- ZMQ_ONLY_FIRST_SUBSCRIBE will cause only the first part of a multipart
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message to be processed as a subscribe/unsubscribe message, and the rest
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will be forwarded as user data to the application.
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- ZMQ_RECONNECT_STOP will cause a connecting socket to stop trying to
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reconnect in specific circumstances. See the manpage for details.
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- ZMQ_HELLO_MSG to set a message that will be automatically sent to a new
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connection.
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- ZMQ_DISCONNECT_MSG to set a message that will be automatically received when
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a peer disconnects.
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See doc/zmq_setsockopt.txt and doc/zmq_getsockopt.txt for details.
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* New DRAFT (see NEWS for 4.2.0) zmq_ctx_get_ext/zmq_ctx_set_ext APIs were added
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to allow enhancing the context options with variable data inputs.
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See doc/zmq_ctx_get_ext.txt and doc/zmq_ctx_set_ext.txt for details.
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* New DRAFT (see NEWS for 4.2.0) transport options WS and WSS added for support
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of WebSockets (and secure WebSockets via TLS) via the ZWS 2.0 protocol.
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WSS requires the GnuTLS library for TLS support. ZMQ_WSS_ specific socket
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options were added to support TLS.
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WebSockets support is disabled by default if DRAFT APIs are disabled.
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* New DRAFT (see NEWS for 4.2.0) socket type, PEER, which is thread safe and a
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related zmq_connect_peer function which atomically and thread-safely connects
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and returns a routing-id.
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* New DRAFT (see NEWS for 4.2.0) zmq_msg_init_buffer API was added to allow
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the construction of a message by copying from an existing buffer.
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* New DRAFT (see NEWS for 4.2.0) zmq_poller_size API was added to allow querying
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the number of sockets/fds registered in a zmq_poller.
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* ZMTP 3.1 peers will receive subscribe/cancel on PUB/SUB via commands rather
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than using the first byte of the payload.
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* zmq_z85_decode now checks that the input string's length is at least 5 characters
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and always a multiple of 5 as per API specification.
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* Fixed #3566 - malformed CURVE message can cause memory leak
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* Fixed #3567 - missing ZeroMQ_INCLUDE_DIR in ZeroMQConfig.cmake when only
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static lib is built
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* Fixed #3576 - CURVE plaintext secrets now stored in libsodium's secure memory
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* Fixed #3588 - install debug libraries for debug msvc builds with CMake
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* Fixed #3591 - incorrect ZMQ_MAX_SOCKETS default value in doc
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* Fixed #3594 - fixed stream_engine use after free due to concurrent heartbeats
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* Fixed #3586 - error when compiling with MinGW due to usage of MS-specific
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__except keyword
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* Fixed #3603 - fixed CMake build on SL6.9
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* Fixed #3607 - added scripts to ease performance graph generation
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* Fixed #3608 - fix for IPv4 mapping not supported in DragonFlyBSD
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* Fixed #3636 - added ENABLE_PRECOMPILED CMake option to fix build with Ninja
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* Fixed #2862 - UDP engine aborts on networking-related errors from socket
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syscalls
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* Fixed #3656 - segfault on sending data from XSUB to XPUB
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* Fixed #3646 - static-only test run fails
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* Fixed #3668 - fixed CMAKE_CXX_FLAGS_* regexes on MSVC
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* Fixed #110 - do not include winsock2.h in public zmq.h header
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* Fixed #3683 - allow "configure --disable-maintainer-mode"
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* Fixed #3686 - fix documentation about sockets blocking on send operations
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* Fixed #3323 - fix behavior of ZMQ_CONFLATE on PUB sockets
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* Fixed #3698 - fix build on IBM i/PASE/os400
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* Fixed #3705 - zero-sized messages cause assertion when glibc assertion are on
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* Fixed #3713 - remove dependency on math library by avoiding std::ceil
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* Fixed #3694 - build targeting Windows XP is broken
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* Fixed #3691 - added support for IPC on Windows 10 via AF_UNIX
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* Fixed #3725 - disable by default test that requires sudo on CMake
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* Fixed #3727 - fix zmq_poller documentation example
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* Fixed #3729 - do not check for FD_OOB when using WSAEventSelect on Windows
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* Fixed #3738 - allow renaming the library in CMake
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* Fixed #1808 - use AF_UNIX instead of TCP for the internal socket on Windows 10
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* Fixed #3758 - fix pthread_set_affinity detection in CMake
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* Fixed #3769 - fix undefined behaviour in array.hpp
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* Fixed #3772 - fix compiling under msys2-mingw
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* Fixed #3775 - add -latomic to the private libs flag in pkg-config if needed
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* Fixed #3778 - fix documentation of zmq_poller's thread safety
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* Fixed #3792 - do not allow creation of new sockets after zmq_ctx_shutdown
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* Fixed #3805 - improve performance of CURVE by reducing copies
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* Fixed #3814 - send subscribe/cancel as commands to ZMTP 3.1 peers
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* Fixed #3847 - fix building without PGM and NORM
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* Fixed #3849 - install .cmake file in arch-dependent subdirectory
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* Fixed #4005 - allow building on Windows ARM/ARM64
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0MQ version 4.3.2 stable, released on 2019/07/08
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================================================
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* CVE-2019-13132: a remote, unauthenticated client connecting to a
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libzmq application, running with a socket listening with CURVE
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encryption/authentication enabled, may cause a stack overflow and
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overwrite the stack with arbitrary data, due to a buffer overflow in
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the library. Users running public servers with the above configuration
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are highly encouraged to upgrade as soon as possible, as there are no
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known mitigations. All versions from 4.0.0 and upwards are affected.
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Thank you Fang-Pen Lin for finding the issue and reporting it!
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* New DRAFT (see NEWS for 4.2.0) zmq_socket_monitor_versioned API that supports
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a versioned monitoring events protocol as a parameter. Passing 1 results in
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the same behaviour as zmq_socket_monitor.
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Version 2 of the events protocol allows new events, new metadata, different
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socket types for the monitors and more. It is described in details in
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doc/zmq_socket_monitor_versioned.txt
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* New DRAFT (see NEWS for 4.2.0) zmq_socket_monitor_pipes_stats that triggers
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a new ZMQ_EVENT_PIPES_STATS to be delivered via zmq_socket_monitor_versioned
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v2 API, which contains the current status of all the queues owned by the
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monitored socket. See doc/zmq_socket_monitor_versioned.txt for details.
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* New DRAFT (see NEWS for 4.2.0) zmq_poller_fd that returns the FD of a thread
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safe socket. See doc/zmq_poller.txt for details.
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* New DRAFT (see NEWS for 4.2.0) socket options:
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- ZMQ_XPUB_MANUAL_LAST_VALUE is similar to ZMQ_XPUB_MANUAL but allows to avoid
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duplicates when using last value caching.
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- ZMQ_SOCKS_USERNAME and ZMQ_SOCKS_PASSWORD that implement SOCKS5 proxy
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authentication.
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See doc/zmq_setsockopt.txt and doc/zmq_getsockopt.txt for details.
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* Implemented background thread names for Windows, when the Visual Studio
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debugger is being used.
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* Fixed #3358 - test_security_zap failing due to SIGBUS on SPARC64, hard-coded
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IPC socket binds in tests cause race conditions
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* Fixed #3361 - enabling GSSAPI support (when using autools) does not work due
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to regression introduced in 4.2.3
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* Fixed #3362 - remove documentation for ZMQ_THREAD_PRIORITY context option
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getter, it's not implemented
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* Fixed #3363 - tests fail to build due to stricter compiler printf validation
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in new versions of GCC
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* Fixed #3367 - try to infer cacheline size at build time, first with
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getconf LEVEL1_DCACHE_LINESIZE, and then by reading
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/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size
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(autoconf only), and only then falling back to the previous
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default of 64 bytes. Avoids false sharing on POWER and s390x.
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Import ax_func_posix_memalign.m4 as a more reliable check for
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posix_memalign presence on some unix platforms.
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Prefer c++11 atomic primitives to compiler intrinsics, when
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both are available, as the former is more reliable.
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Set test_pair_ipc and test_rebind_ipc to XFAIL on GNU/Hurd due
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to non-functioning getsockname on AF_UNIX.
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* Fixed #3370 - Make queue length and HWM state observable
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* Fixed #3373 - performance regression in zmq_poll on CentOS 6/7
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* Fixed #3375 - assign names to all pthreads created by the library to ease
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debugging
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* Fixed #3376 - assigned random TIPC port is not returned by ZMQ_LAST_ENDPOINT
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* Fixed #3385 - TCP port in ZMQ_LAST_ENDPOINT depends on global locale
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* Fixed #3404 - use std::condition_variable_any when possible
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* Fixed #3436 - reconnect interval exponential backoff and may lead to integer
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overflows
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* Fixed #3440 - improve zmq_proxy performance by batching of up to 1000
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consecutive messages (if any) and add perf/proxy_thr tool
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* Fixed #3451 - fix support of /dev/poll on Solaris
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* Fixed #3452 - strnlen may not be available
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* Fixed #1462 - test failure in test_filter_ipc due to invalid system groups
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* Fixed #3269 - Boost.ASIO integration stopped working with v4.3.0
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* Fixed #3479 - ZeroMQ does not build for QNX 6.6 with CMake
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* Fixed #3481 - add <ios> include to fix uClibc++ compilation
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* Fixed #3491 - build broken on Fedora 30
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* Fixed #3494 - ZeroMQConfig.cmake fails if shared libraries are not built
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* Fixed #3498 - syntax error on Windows related to socket descriptor type
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* Fixed #3500 - PLAIN HELLO message incorrectly uses WELCOME literal, regression
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introduced in 4.3.0
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* Fixed #3517 - configure errors because of syntax errors in the use of test
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shell command
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* Fixed #3521 - document how to achieve high performance with the PGM transport
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* Fixed #3526 - failure case behavior unclear in zmq_msg_send documentation
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* Fixed #3537 - fix build on z/OS by using pthread_equal instead of comparing
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variables directly
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* Fixed #3546 - CMake links with librt on MinGW which is not available
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* Many coding style, duplication, testing and static analysis improvements.
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0MQ version 4.3.1 stable, released on 2019/01/12
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================================================
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* CVE-2019-6250: A vulnerability has been found that would allow attackers to
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direct a peer to jump to and execute from an address indicated by the
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attacker.
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This issue has been present since v4.2.0. Older releases are not affected.
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NOTE: The attacker needs to know in advance valid addresses in the peer's
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memory to jump to, so measures like ASLR are effective mitigations.
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NOTE: this attack can only take place after authentication, so peers behind
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CURVE/GSSAPI are not vulnerable to unauthenticated attackers.
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See https://github.com/zeromq/libzmq/issues/3351 for more details.
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Thanks to Guido Vranken for uncovering the issue and providing the fix!
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* Note for packagers: as pkg-config's Requires.private is now used to properly
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propagate dependencies for static builds, the libzmq*-dev or zeromq-devel or
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equivalent package should now depend on the libfoo-dev or foo-devel packages
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of all the libraries that zmq is linked against, or pkg-config --libs libzmq
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will fail due to missing dependencies on end users machines.
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* Fixed #3351 - remote code execution vulnerability.
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* Fixed #3343 - race condition in ZMQ_PUSH when quickly disconnecting and
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reconnecting causes last part of multi-part message to get
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"stuck" and resent by mistake to the new socket.
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* Fixed #3336 - set Requires.private in generate pkg-config file.
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* Fixed #3334 - set TCP_NODELAY after connect() on Windows for the I/O socket.
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* Fixed #3326 - assert on Android when opening a socket and disabling WiFi.
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* Fixed #3320 - build failure on OpenBSD with GCC.
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0MQ version 4.3.0 stable, released on 2018/11/28
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================================================
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* The following DRAFT APIs have been marked as STABLE and will not change
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anymore:
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- ZMQ_MSG_T_SIZE context option (see doc/zmq_ctx_get.txt)
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- ZMQ_THREAD_AFFINITY_CPU_ADD and ZMQ_THREAD_AFFINITY_CPU_REMOVE (Posix only)
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context options, to add/remove CPUs to the affinity set of the I/O threads.
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See doc/zmq_ctx_set.txt and doc/zmq_ctx_get.txt for details.
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- ZMQ_THREAD_NAME_PREFIX (Posix only) context option, to add a specific
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integer prefix to the background threads names, to easily identify them.
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See doc/zmq_ctx_set.txt and doc/zmq_ctx_get.txt for details.
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- ZMQ_GSSAPI_PRINCIPAL_NAMETYPE and ZMQ_GSSAPI_SERVICE_PRINCIPAL_NAMETYPE
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socket options, for the corresponding GSSAPI features. Additional
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definitions for principal name types:
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- ZMQ_GSSAPI_NT_HOSTBASED
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- ZMQ_GSSAPI_NT_USER_NAME
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- ZMQ_GSSAPI_NT_KRB5_PRINCIPAL
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See doc/zmq_gssapi.txt for details.
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- ZMQ_BINDTODEVICE socket option (Linux only), which will bind the
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socket(s) to the specified interface. Allows to use Linux VRF, see:
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https://www.kernel.org/doc/Documentation/networking/vrf.txt
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NOTE: requires the program to be ran as root OR with CAP_NET_RAW
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- zmq_timers_* APIs. These functions can be used for cross-platforms timed
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callbacks. See doc/zmq_timers.txt for details.
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- The following socket monitor events:
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- ZMQ_EVENT_HANDSHAKE_FAILED_NO_DETAIL: unknown errors during handshake.
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- ZMQ_EVENT_HANDSHAKE_SUCCEEDED: Handshake completed with authentication.
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- ZMQ_EVENT_HANDSHAKE_FAILED_PROTOCOL: Protocol errors with peers or ZAP.
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- ZMQ_EVENT_HANDSHAKE_FAILED_AUTH: Failed authentication requests.
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See doc/zmq_socket_monitor.txt for more details and error codes.
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- zmq_stopwatch_intermediate which returns the time elapsed without stopping
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the stopwatch.
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- zmq_proxy_steerable command 'STATISTICS' to retrieve stats about the amount
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of messages and bytes sent and received by the proxy.
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See doc/zmq_proxy_steerable.txt for more information.
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* The build-time configuration option to select the poller has been split, and
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new API_POLLER (CMake) and --with-api-poller (autoconf) options will now
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determine what system call is used to implement the zmq_poll/zmq_poller APIs.
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The previous POLLER and --with-poller options now only affects the
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internal I/O thread. In case API_POLLER is not specified, the behaviour keeps
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backward compatibility intact and will be the same as with previous releases.
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* The non-default "poll" poller for the internal I/O thread (note: NOT for the
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zmq_poll/zmq_poller user APIs!) has been disabled on Windows as WSAPoll does
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not report connection failures. For more information see:
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- https://daniel.haxx.se/blog/2012/10/10/wsapoll-is-broken/
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- https://curl.haxx.se/mail/lib-2012-10/0038.html
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- https://bugs.python.org/issue16507
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* New epoll implementation for Windows, using the following implementation:
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https://github.com/piscisaureus/wepoll/tree/v1.5.4
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To use this, select "epoll" as the poller option in the build system.
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Note for distributors: the wepoll source code is embedded and distributed.
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It is licensed under the BSD-2-Clause and thus it is compatible with LGPL-3.0.
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Note that, if selected at build time, the license text must be distributed
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with the binary in accordance to the license terms. A copy can be found at:
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external/wepoll/license.txt
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* The pre-made Visual Studio solutions file are deprecated, and users are
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encouraged to use the CMake solution generation feature instead.
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* New DRAFT (see NEWS for 4.2.0) socket options:
|
|
- ZMQ_ROUTER_NOTIFY to deliver a notification when a peer connects and/or
|
|
disconnects in the form of a routing id plus a zero-length frame.
|
|
- ZMQ_MULTICAST_LOOP to control whether the data sent should be looped back
|
|
on local listening sockets for UDP multicast sockets (ZMQ_RADIO).
|
|
See doc/zmq_setsockopt.txt and doc/zmq_getsockopt.txt for details.
|
|
|
|
* New perf tool, perf/benchmark_radix_tree, to measure the performance of the
|
|
different internal implementations of the trie algorithm used to track
|
|
subscriptions. Requires a compiler that supports C++11.
|
|
|
|
* New autoconf flag "--enable-force-CXX98-compat" which will force -std=gnu++98
|
|
and, if the compiler supports them (clang++ at the moment), it will also add
|
|
-Wc++98-compat -Wc++98-compat-pedantic so that compatibility with C++98 can
|
|
be tested.
|
|
|
|
* Many, many coding style, duplication and static analysis improvements.
|
|
|
|
* Many, many improvements to the CMake build system, especially on Windows.
|
|
|
|
* Many, many improvements to unit tests.
|
|
|
|
* Fixed #3036 - Compilation error when -pedantic is used.
|
|
|
|
* Fixed #3028 - Failure when zmq_poller_destroy is called after zmq_ctx_term.
|
|
|
|
* Fixed #2989 - CMake: Linker PDB install rule does not work when Visual Studio
|
|
generators are used.
|
|
|
|
* Fixed #3045 - configure.ac: search for dladdr only when using libunwind.
|
|
|
|
* Fixed #3060 - REQ sockets terminate TCP connection after first heartbeat if
|
|
ZMQ_HEARTBEAT_IVL is set.
|
|
|
|
* Fixed #2212 - UDP: need ability to specify bind address separately from
|
|
multicast address for multi-homed hosts.
|
|
|
|
* Fixed #2891 - UDP: address name resolution is limited to dotted IPv4 rather
|
|
than being capable of IPv4, IPv6, and hostname lookup.
|
|
|
|
* Fixed #3085 - autoconf/CMake getrandom test does not check if it's working but
|
|
only for its presence.
|
|
|
|
* Fixed #3090 - compilation broken with Solaris Studio.
|
|
|
|
* Fixed #3094 - UDP: pass interface via IP[V6]_MULTICAST_IF if provided.
|
|
|
|
* Fixed #3061 - implement ZMTP 3.1 ping/pong context sending/receiving.
|
|
|
|
* Fixed #2188 - Added documentation for new zmq_poller API.
|
|
|
|
* Fixed #3088 - zmq_poller_add/zmq_poller_modify should reject invalid events
|
|
arguments.
|
|
|
|
* Fixed #3042 - Fixed compilation on ARM with ZMQ_ATOMIC_PTR_MUTEX.
|
|
|
|
* Fixed #3107 - test_immediate_3/test_reconnect_inproc do not terminate with
|
|
POLL as the I/O thread poller under Windows.
|
|
|
|
* Fixed #3046 - Aborts when iOS abuses EBADF to report a socket has been
|
|
reclaimed.
|
|
|
|
* Fixed #3136 - Cannot set ZMQ_HEARTBEAT_TTL to more than 655.3 seconds.
|
|
|
|
* Fixed #3083 - link with -latomic when needed.
|
|
|
|
* Fixed #3162 - build failure with MUSL libc.
|
|
|
|
* Fixed #3158 - -1 value of ZMQ_RECONNECT_IVL was not correctly handled on some
|
|
platforms.
|
|
|
|
* Fixed #3170 - improved documentation for ZMQ_PAIR.
|
|
|
|
* Fixed #3168 - correctly use symbols map on Debian/kFreeBSD and Debian/HURD
|
|
to avoid exporting standard library symbols.
|
|
|
|
* Fixed #3168 - correctly process ZMTP 3.1 cancel/subscribe commands.
|
|
|
|
* Fixed #3171 - improve documentation for ZMQ_CONFLATE.
|
|
|
|
* Fixed #2876 - stack overflow on Windows 64.
|
|
|
|
* Fixed #3191 - race condition with received message causes
|
|
ZMQ_CONNECT_ROUTING_ID to be assigned to wrong socket.
|
|
|
|
* Fixed #3005 - added documentation for new zmq_timers_* API.
|
|
|
|
* Fixed #3222 - use /Z7 debug on Release builds too on Windows (CMake).
|
|
|
|
* Fixed #3226 - possible PGM receiver crash.
|
|
|
|
* Fixed #3236 - UDP dish socket can't bind to a multicast port already in use.
|
|
|
|
* Fixed #3242 - improve HWM documentation.
|
|
|
|
* Fixed #2488 - improve zmq_msg_send doc return value documentation.
|
|
|
|
* Fixed #3268 - HWM in ZMQ_DGRAM socket does not respect multipart message.
|
|
|
|
* Fixed #3284 - added support for ZMQ_MULTICAST_HOPS with UDP sockets.
|
|
|
|
* Fixed #3245 - use-after-free reported in zmq::pipe_t::terminate.
|
|
|
|
* Fixed #1400 - use patricia trie for subscription to improve performances and
|
|
memory usage. Note: only active in DRAFT builds for now.
|
|
|
|
* Fixed #3263 - fix abort on Windows when a large TCP read is requested and
|
|
fails.
|
|
|
|
* Fixed #3312 - fix build on Android Things 1.06 with Termux.
|
|
|
|
|
|
0MQ version 4.2.5 stable, released on 2018/03/23
|
|
================================================
|
|
|
|
* Fixed #3018 - fix backward-incompatible change in the NULL auth
|
|
mechanism that slipped in 4.2.3 and made connections
|
|
with a ZAP domain set on a socket but without a working
|
|
ZAP handler fail. See ZMQ_ZAP_ENFORCE_DOMAIN and RFC27.
|
|
|
|
* Fixed #3016 - clarify in zmq_close manpage that the operation will
|
|
complete asynchronously.
|
|
|
|
* Fixed #3012 - fix CMake build problem when using LIBZMQ_WERROR and a
|
|
compiler other than GCC.
|
|
|
|
|
|
0MQ version 4.2.4 stable, released on 2018/03/21
|
|
================================================
|
|
|
|
* New DRAFT (see NEWS for 4.2.0) socket options:
|
|
- ZMQ_LOOPBACK_FASTPATH to enable faster TCP loopback on Windows
|
|
- ZMQ_METADATA to set application-specific metadata on a socket
|
|
See doc/zmq_setsockopt.txt and doc/zmq_getsockopt.txt for details.
|
|
|
|
* New DRAFT (see NEWS for 4.2.0) context options:
|
|
- ZMQ_ZERO_COPY_RECV to disable zero-copy receive to save memory
|
|
at the expense of slower performance
|
|
See doc/zmq_ctx_set.txt and doc/zmq_ctx_get.txt for details.
|
|
|
|
* New DRAFT API zmq_stopwatch_intermediate which returns the time
|
|
elapsed without stopping the stopwatch.
|
|
|
|
* TIPC: support addressing TIPC Port Identity addresses.
|
|
|
|
* Added CMake option to disable tests: BUILD_TESTS
|
|
|
|
* Added CMake and autotools make targets to support clang-formatter:
|
|
make clang-format, clang-format-check and clang-format-diff to
|
|
help developers make sure their code conforms to the style guidelines
|
|
|
|
* For distributors: a new test framework has been added, which
|
|
includes a copy of the Unity source code. This source code library is
|
|
distributed under the MIT license and thus is compatible with
|
|
libzmq's LGPL3.
|
|
|
|
* Fixed #2867 - add ZeroMQConfig.cmake.in to distributable tarball
|
|
|
|
* Fixed #2868 - fix OpenBSD build
|
|
|
|
* Fixed #2870 - fix VC++ 11.0 (VS2012) build
|
|
|
|
* Fixed #2879 - prevent duplicate connections on PUB sockets
|
|
|
|
* Fixed #2872 - fix CMake tests on Windows
|
|
|
|
* Fixed #2895 - fix assert on Windows with POLL
|
|
|
|
* Fixed #2920 - fix Windows build with Intel compiler
|
|
|
|
* Fixed #2930 - use std::atomic when available with VC++ and VS2015
|
|
|
|
* Fixed #2910 - fix race condition with ZMQ_LINGER socket option
|
|
|
|
* Fixed #2927 - add support for ZMQ_XPUB_NODROP on ZMQ_RADIO
|
|
|
|
* Fixed #2820 - further clarify ZMQ_XPUB_VERBOSE(R) documentation.
|
|
|
|
* Fixed #2911 - ZMQ_DISH over UDP triggers errno_assert() after hitting
|
|
watermark
|
|
|
|
* Fixed #2942 - ZMQ_PUB crash when due to high volume of subscribe and
|
|
unsubscribe messages, an unmatched unsubscribe message is
|
|
received in certain conditions
|
|
|
|
* Fixed #2946 - fix Windows CMake build when BUILD_SHARED is off
|
|
|
|
* Fixed #2960 - fix build with GCC 8
|
|
|
|
* Fixed #2967 - fix race condition on thread safe sockets due to pthread
|
|
condvar timeouts on OSX
|
|
|
|
* Fixed #2977 - fix TIPC build-time availability check to be more relaxed
|
|
|
|
* Fixed #2966 - add support for WindRiver VxWorks 6.x
|
|
|
|
* Fixed #2963 - fix some PVS Studio static analysis warnings
|
|
|
|
* Fixed #2983 - fix MinGW cross-compilation
|
|
|
|
* Fixed #2991 - fix mutex assert at shutdown when the zmq context is part
|
|
of a class declared as a global static
|
|
|
|
|
|
0MQ version 4.2.3 stable, released on 2017/12/13
|
|
================================================
|
|
|
|
* API change: previously ZMQ_POLLOUT on a ZMQ_ROUTER socket returned always
|
|
true due to how the type works. When ZMQ_ROUTER_MANDATORY is set, sending
|
|
fails when the peer is not available, but ZMQ_POLLOUT always returns true
|
|
anyway, which does not make sense. Now when ZMQ_ROUTER_MANDATORY is set,
|
|
ZMQ_POLLOUT on a ZMQ_ROUTER will return true only if at least one peer is
|
|
available.
|
|
Given ZMQ_POLLOUT with ZMQ_ROUTER was not usable at all previously, we do
|
|
not consider this a breakage warranting a major or minor version increase.
|
|
|
|
* ZMQ_IDENTITY has been renamed to ZMQ_ROUTING_ID and ZMQ_CONNECT_RID has been
|
|
renamed to ZMQ_CONNTECT_ROUTING_ID to disambiguate. ZMQ_IDENTITY and
|
|
ZMQ_CONNECT_RID are still available to keep backward compatibility, and will
|
|
be removed in a future release after further advance notice.
|
|
|
|
* DRAFT API change: zmq_poller_wait, zmq_poller_wait_all and zmq_poller_poll
|
|
have been changed to be inline with other existing APIs that have a timeout
|
|
to return EAGAIN instead of ETIMEDOUT as the errno value.
|
|
See #2713 for details.
|
|
|
|
* Existing non-DRAFT socket types ZMQ_REP/REQ, ZMQ_ROUTER/DEALER and
|
|
ZMQPUB/SUB, that were previously declared deprecated, have been reinstated
|
|
as stable and supported. See #2699 for details.
|
|
|
|
* Tweetnacl: add support for, and use preferably if available, getrandom() as
|
|
a simpler and less error-prone alternative to /dev/urandom on OSes where it
|
|
is available (eg: Linux 3.18 with glibc 2.25).
|
|
|
|
* Curve: all remaining traces of debug output to console are now removed, and
|
|
new DRAFT events are available to properly debug CURVE, PLAIN, GSSAPI and
|
|
ZAP events and failures. See below for details on the new events.
|
|
|
|
* New DRAFT (see NEWS for 4.2.0) socket options:
|
|
- ZMQ_GSSAPI_PRINCIPAL_NAMETYPE and ZMQ_GSSAPI_SERVICE_PRINCIPAL_NAMETYPE, for
|
|
the corresponding GSSAPI features. Additional definitions for principal
|
|
name types:
|
|
- ZMQ_GSSAPI_NT_HOSTBASED
|
|
- ZMQ_GSSAPI_NT_USER_NAME
|
|
- ZMQ_GSSAPI_NT_KRB5_PRINCIPAL
|
|
See doc/zmq_gssapi.txt for details.
|
|
- ZMQ_BINDTODEVICE (Linux only), which will bind the socket(s) to the
|
|
specified interface. Allows to use Linux VRF, see:
|
|
https://www.kernel.org/doc/Documentation/networking/vrf.txt
|
|
NOTE: requires the program to be ran as root OR with CAP_NET_RAW
|
|
- ZMQ_ZAP_ENFORCE_DOMAIN, enables strict RFC 27 compatibility mode and makes
|
|
the ZAP Domain mandatory when using security. See:
|
|
https://rfc.zeromq.org/spec:27/ZAP
|
|
See doc/zmq_setsockopt.txt and doc/zmq_getsockopt.txt for details.
|
|
|
|
* New DRAFT (see NEWS for 4.2.0) context options:
|
|
- ZMQ_THREAD_AFFINITY_CPU_ADD and ZMQ_THREAD_AFFINITY_CPU_REMOVE (Posix only),
|
|
to add and remove CPUs to the affinity set of the I/O threads. Useful to pin
|
|
the background threads to specific CPUs.
|
|
- ZMQ_THREAD_NAME_PREFIX (Posix only), to add a specific integer prefix to the
|
|
background threads names, to easily identify them for debugging purposes.
|
|
See doc/zmq_ctx_set.txt and doc/zmq_ctx_get.txt for details.
|
|
|
|
* New DRAFT (see NEWS for 4.2.0) message property name definitions to facilitate
|
|
the use of zmq_msg_gets:
|
|
- ZMQ_MSG_PROPERTY_ROUTING_ID
|
|
- ZMQ_MSG_PROPERTY_SOCKET_TYPE
|
|
- ZMQ_MSG_PROPERTY_USER_ID
|
|
- ZMQ_MSG_PROPERTY_PEER_ADDRESS
|
|
See doc/zmq_msg_gets.txt for details.
|
|
|
|
* New DRAFT (see NEWS for 4.2.0) API zmq_socket_get_peer_state, to be used to
|
|
query the state of a specific peer (via routing-id) of a ZMQ_ROUTER socket.
|
|
|
|
* New DRAFT (see NEWS for 4.2.0) Socket Monitor events:
|
|
- ZMQ_EVENT_HANDSHAKE_FAILED_NO_DETAIL, unknown system error and returns errno
|
|
- ZMQ_EVENT_HANDSHAKE_SUCCEEDED, handshake was successful
|
|
- ZMQ_EVENT_HANDSHAKE_FAILED_PROTOCOL, protocol errors between peers or server
|
|
and ZAP handler. Returns one of ZMQ_PROTOCOL_ERROR_* - see manpage for list
|
|
- ZMQ_EVENT_HANDSHAKE_FAILED_AUTH, failed authentication, returns ZAP status
|
|
These events trigger when the ZMTP security mechanism handshake is
|
|
completed or failed. See doc/zmq_socket_monitor.txt for more information.
|
|
|
|
* New DRAFT (see NEWS for 4.2.0) zmq_proxy_steerable command 'STATISTICS' to
|
|
retrieve stats about the amount of messages and bytes sent and received by
|
|
the proxy. See doc/zmq_proxy_steerable.txt for more information.
|
|
|
|
* Add new autoconf --disable-libunwind option to stop building with libunwind
|
|
even if it is available.
|
|
|
|
* Add new autoconf --disable-Werror option to avoid building with the Werror
|
|
flag.
|
|
|
|
* Use pkg-config as the first method for finding and building with external
|
|
optional dependencies such as libnorm, libpgm and gssapi.
|
|
|
|
* On Posix platform where the feature is available, name the ZMQ background
|
|
threads to simplify debugging: "ZMQbg/<num_thread>"
|
|
|
|
* Improve performance of zmq_poller_* (and zmq_poll and zmq_proxy when building
|
|
with DRAFT APIs enabled).
|
|
|
|
* The TCP unit tests have been refactored to bind and connect to random ports
|
|
rather than hard-coded ones, to allow running tests in parallel.
|
|
There are 6 exceptions where it is necessary to use an hard-coded port to
|
|
test specific code paths that would not be exercised when binding to a
|
|
wildcard port. These are listed in tests/testutil.hpp so that distributions
|
|
can easily patch them if they wish to and so that they can be unique across
|
|
all the tests, allowing parallel runs.
|
|
The IPC unit tests have been changed as well to use unique socket file names
|
|
per test, where before there were some clashes.
|
|
|
|
* Fixed #2349 - fix building with libsodium when using CMake
|
|
|
|
* Fixed #2334 - do not assert when tuning socket options fails due to network
|
|
errors, but simply retry again when connecting or send a socket monitor
|
|
ZMQ_EVENT_ACCEPT_FAILED event when binding
|
|
|
|
* Fixed #2341 - fix source files path in VS2015 solution
|
|
|
|
* Fixed #2344 - Note that on Windows with VS2012 it is mandatory to increase
|
|
the default stack size to at least 2MB
|
|
|
|
* Fixed #2348 - ZMQ_ROUTER send with ZMQ_ROUTER_MANDATORY can be stuck in case of
|
|
network problem
|
|
|
|
* Fixed #2358 - occasional abort on zmq_connect on Windows
|
|
|
|
* Fixed #2370 - zmq_curve_keypair should return an error on failure rather
|
|
than ignoring them and always returning 0
|
|
|
|
* Fixed #2452 - __STDC_LIMIT_MACROS before precompiled headers causes VC++
|
|
warning
|
|
|
|
* Fixed #2457 - fix building with libsodium in Visual Studio solutions
|
|
|
|
* Fixed #2466 - add const qualifier to internal and public API that does not
|
|
modify parameters
|
|
|
|
* Fixed #2471 - do more checks for OOM conditions when dynamic allocations is
|
|
used
|
|
|
|
* Fixed #2476 - assertion causes abort after ZAP stop at shutdown
|
|
|
|
* Fixed #2479 - improve zmq_poller performance on Windows
|
|
|
|
* Fixed #2481 - potential memory leaks due to ZMTP handshake failures
|
|
|
|
* Fixed #2531 - ZMQ_GSSAPI_PRINCIPAL sockopt has no effect on client side
|
|
|
|
* Fixed #2535 - add BUILD_SHARED and BUILD_STATIC options to CMake, both on by
|
|
default, to toggle shared and static library builds
|
|
|
|
* Fixed #2537 - use SYSTEM_CLOCK on OSX and CLOCK_MONOTONIC elsewhere for
|
|
internal timers to avoid races
|
|
|
|
* Fixed #2540 - new zmq_poller used by zmq_poll without DRAFTs
|
|
|
|
* Fixed #2552 - Fix WITH_DOC CMake build to avoid checking for asciidoc if the
|
|
option is disabled
|
|
|
|
* Fixed #2567 - Memory leak in REP socket handling
|
|
|
|
* Fixed #2579 - Compilation issue on Windows with CMake + ninja
|
|
|
|
* Fixed #2588 - SIGBUS under 64-bit SunOS Sparc
|
|
|
|
* Fixed #2590 - crash when using ZMQ_IMMEDIATE and ZMQ_LINGER to non-zero
|
|
|
|
* Fixed #2601 - XPUB_MANUAL subscriptions not removed on peer term
|
|
|
|
* Fixed #2602 - intermittent memory leak for ZMQ_REQ/REP send/recv
|
|
|
|
* Fixed #2608 - CURVE server (connect) fails when client rebinds
|
|
|
|
* Fixed #2610 - print backtraces in mutual exclusion to avoid mixing
|
|
different traces
|
|
|
|
* Fixed #2621 - add missing CMake files to distributable tarball
|
|
|
|
* Fixed #2630 - improve compatibility with OpenBSD w.r.t. IPV6_V6ONLY
|
|
|
|
* Fixed #2638 - note in INSTALL that when using Windows builds on Linux with
|
|
Wine it is necessary to increase the minimum TCP buffers
|
|
|
|
* Fixed #2632 - Fix file descriptor leak when using Tweetnacl (internal NACL
|
|
implementation) instead of Libsodium, and fix race condition when using
|
|
multiple ZMQ contexts with Tweetnacl
|
|
|
|
* Fixed #2681 - Possible buffer overflow in CURVE mechanism handshake.
|
|
NOTE: this was protected by an assert previously, so there is no security
|
|
risk.
|
|
|
|
* Fixed #2704 - test_sockopt_hwm fails occasionally on Windows
|
|
|
|
* Fixed #2701 - pgm build via cmake doesn't link libzmq with libpgm
|
|
|
|
* Fixed #2711 - ZAP handler communication errors should be handled consistently
|
|
|
|
* Fixed #2723 - assertion in src\select.cpp:111 or hang on zmq_ctx_destroy on
|
|
Windows
|
|
|
|
* Fixed #2728 - fix support O_CLOEXEC when building with CMake
|
|
|
|
* Fixed #2761 - improve compatibility with TrueOS (FreeBSD 12)
|
|
|
|
* Fixed #2764 - do not unlink IPC socket files when closing a socket to avoid
|
|
race conditions
|
|
|
|
* Fixed #2770 - support lcov 1.13 and newer
|
|
|
|
* Fixed #2787 - add libiphlpapi to PKGCFG_LIBS_PRIVATE for static mingw builds
|
|
|
|
* Fixed #2788 - document that adding -DZMQ_STATIC is required for Windows
|
|
static builds with Mingw
|
|
|
|
* Fixed #2789 - description of zmq_atomic_counter_value return value is cloned
|
|
from zmq_atomic_counter_new
|
|
|
|
* Fixed #2791 - fix building with DRAFT APIs on CentOS 6
|
|
|
|
* Fixed #2794 - router_t methods should not allocate memory for lookup in
|
|
outpipes
|
|
|
|
* Fixed #2809 - optimize select() usage on Windows
|
|
|
|
* Fixed #2816 - add CMake and autoconf check for accept4, as it is not
|
|
available on old Linux releases, and fallback to accept + FD_CLOEXEC
|
|
|
|
* Fixed #2824 - ZMQ_REQ socket does not report ZMQ_POLLOUT when ZMQ_REQ_RELAXED
|
|
is set
|
|
|
|
* Fixed #2827 - add support for Haiku
|
|
|
|
* Fixed #2840 - fix building with VS2008
|
|
|
|
* Fixed #2845 - correct the ZMQ_LINGER documentation to accurately reflect that
|
|
the default value is -1 (infinite). It never was 30 second in any released
|
|
version, it was only changed briefly and then changed back, but the manpage
|
|
was not reverted.
|
|
|
|
* Fixed #2861 - CMake/MSVC: export ZMQ_STATIC when needed.
|
|
|
|
0MQ version 4.2.2 stable, released on 2017/02/18
|
|
=============================================
|
|
|
|
* Improve compatibility with GNU Hurd
|
|
|
|
* Fixed #2286 - improve CMake on Windows documentation
|
|
|
|
* Fixed #1235 - improved compatibility with mingw64
|
|
|
|
* Improve zmq_proxy documentation to state it can return ETERM as well
|
|
|
|
* Fixed #1442 - SO_NOSIGPIPE and connection closing by peer race condition
|
|
|
|
* Improve CMake functionality on Windows: ZeroMQConfig.cmake generation CPack
|
|
option, correct static library filename, ship FindSodium.cmake in tarball
|
|
|
|
* Fixed #2228 - setting HWM after connect on inproc transport leads to infinite
|
|
HWM
|
|
|
|
* Add support for Visual Studio 2017
|
|
|
|
* New DRAFT (see NEWS for 4.2.0) zmq_has option "draft" option that returns
|
|
true if the library was built with DRAFT enabled. Useful for FFI bindings.
|
|
See doc/zmq_has.txt for more information
|
|
|
|
* Fixed #2321 - zmq_z85_decode does not validate its input. The function has
|
|
been fixed to correctly follow RFC32 and return NULL if the input is invalid
|
|
|
|
* Fixed #2323 - clock_t related crash on Apple iOS 9.3.2 and 9.3.5
|
|
|
|
* Fixed #1801 - OSX: Cmake installs libzmq in a weird PATH
|
|
|
|
* Fixed potential divide by zero in zmq::lb_t::sendpipe
|
|
|
|
* Improve compatibility with OpenIndiana by skipping epoll and using poll/select
|
|
|
|
* Fix IPv4-in-IPv6 mapped addresses parsing error
|
|
|
|
|
|
0MQ version 4.2.1 stable, released on 2016/12/31
|
|
=============================================
|
|
|
|
* New DRAFT (see NEWS for 4.2.0) Socket Monitor events:
|
|
- ZMQ_EVENT_HANDSHAKE_SUCCEED
|
|
- ZMQ_EVENT_HANDSHAKE_FAILED
|
|
These events trigger when the ZMTP security mechanism handshake is
|
|
completed. See doc/zmq_socket_monitor.txt for more information.
|
|
|
|
* New DRAFT (see NEWS for 4.2.0) Context options:
|
|
- ZMQ_MSG_T_SIZE
|
|
See doc/zmq_ctx_get.txt for more information.
|
|
|
|
* Fixed #2268 - improved compatibility with mingw32
|
|
|
|
* Fixed #2254 - ZMQ_PUB compatibility with libzmq 2.x broken
|
|
|
|
* Fixed #2245 - added support for VS2017, Windows SDK 10.0.14393.0, toolset v141
|
|
|
|
* Fixed #2242 - file descriptors leaks on fork+exec
|
|
|
|
* Fixed #2239 - retired poller item crash from reaper thread
|
|
|
|
* Fixed #2234 - improved compatibility with AIX 7.1
|
|
|
|
* Fixed #2225 - cannot pick select for poller
|
|
|
|
* Fixed #2217 - CMake build uses library version as the ABI version
|
|
|
|
* Fixed #2208 - added support for ZMQ_TOS on IPv6
|
|
|
|
* Fixed #2200 - no documentation for ZMQ_SOCKS_PROXY
|
|
|
|
* Fixed #2199 - no documentation for zmq_curve_public
|
|
|
|
* Fixed #2196 - fixed build and runtime errors on kFreeBSD
|
|
|
|
|
|
0MQ version 4.2.0 stable, released on 2016/11/04
|
|
=============================================
|
|
|
|
* For Pieter. Thanks for making all of this possible.
|
|
|
|
"Tell them I was a writer.
|
|
A maker of software.
|
|
A humanist. A father.
|
|
And many things.
|
|
But above all, a writer.
|
|
Thank You. :)"
|
|
- Pieter Hintjens
|
|
|
|
* This release introduces new APIs, but it is ABI compatible with
|
|
libzmq 4.1.2 and up.
|
|
|
|
* Note for ARM and SPARC users: an alignment problem in zmq_msg_t that could in
|
|
some cases and on some CPUs cause a SIGBUS error was solved, but it requires
|
|
a rebuild of your application against the 4.2.0 version of include/zmq.h.
|
|
To clarify, this change does not affect the internals of the library but only
|
|
the public definition of zmq_msg_t, so there is no ABI incompatibility.
|
|
|
|
* Security with Curve is now available by default thanks to Tweetnacl sources:
|
|
https://tweetnacl.cr.yp.to/index.html
|
|
Libsodium is still fully supported but has to be enabled with the build flag
|
|
--with-libsodium. Distribution and package maintainers are encouraged to use
|
|
libsodium so that the security implementation can be audited and maintained
|
|
separately.
|
|
|
|
* New Context options:
|
|
- ZMQ_MAX_MSGSZ
|
|
- ZMQ_BLOCKY
|
|
See doc/zmq_ctx_set.txt and doc/zmq_ctx_get.txt for details.
|
|
|
|
* New Socket options:
|
|
- ZMQ_HANDSHAKE_IVL
|
|
- ZMQ_SOCKS_PROXY
|
|
- ZMQ_XPUB_NODROP
|
|
- ZMQ_XPUB_MANUAL
|
|
- ZMQ_XPUB_WELCOME_MSG
|
|
- ZMQ_STREAM_NOTIFY
|
|
- ZMQ_INVERT_MATCHING
|
|
- ZMQ_HEARTBEAT_IVL
|
|
- ZMQ_HEARTBEAT_TTL
|
|
- ZMQ_HEARTBEAT_TIMEOUT
|
|
- ZMQ_XPUB_VERBOSER
|
|
- ZMQ_CONNECT_TIMEOUT
|
|
- ZMQ_TCP_MAXRT
|
|
- ZMQ_THREAD_SAFE
|
|
- ZMQ_MULTICAST_MAXTPDU
|
|
- ZMQ_VMCI_BUFFER_SIZE
|
|
- ZMQ_VMCI_BUFFER_MIN_SIZE
|
|
- ZMQ_VMCI_BUFFER_MAX_SIZE
|
|
- ZMQ_VMCI_CONNECT_TIMEOUT
|
|
- ZMQ_USE_FD
|
|
See doc/zmq_setsockopt.txt and doc/zmq_getsockopt.txt for details.
|
|
|
|
* New CURVE helper function to derive z85 public key from secret key:
|
|
zmq_curve_public
|
|
|
|
* New cross-platform atomic counter helper functions:
|
|
zmq_atomic_counter_new, zmq_atomic_counter_set, zmq_atomic_counter_inc,
|
|
zmq_atomic_counter_dec, zmq_atomic_counter_value, zmq_atomic_counter_destroy
|
|
See doc/zmq_atomic_*.txt for details.
|
|
|
|
* New DRAFT APIs early-release mechanism. New APIs will be introduced early
|
|
in public releases, and until they are stabilized and guaranteed not to
|
|
change anymore they will be unavailable unless the new build flag
|
|
--enable-drafts is used. This will allow developers and early adopters to
|
|
test new APIs before they are finalized.
|
|
NOTE: as the name implies, NO GUARANTEE is made on the stability of these APIs.
|
|
They might change or disappear entirely. Distributions are recommended NOT to
|
|
build with them.
|
|
|
|
New socket types have been introduced in DRAFT state:
|
|
ZMQ_SERVER, ZMQ_CLIENT, ZMQ_RADIO, ZMQ_DISH, ZMQ_GATHER, ZMQ_SCATTER,
|
|
ZMQ_DGRAM
|
|
All these sockets are THREAD SAFE, unlike the existing socket types. They do
|
|
NOT support multipart messages (ZMQ_SNDMORE/ZMQ_RCVMORE).
|
|
ZMQ_RADIO, ZMQ_DISH and ZMQ_DGRAM also support UDP as transport,
|
|
both unicast and multicast. See doc/zmq_udp.txt for more details.
|
|
New methods to support the new socket types functionality:
|
|
zmq_join, zmq_leave, zmq_msg_set_routing_id, zmq_msg_routing_id,
|
|
zmq_msg_set_group, zmq_msg_group
|
|
See doc/zmq_socket.txt for more details.
|
|
|
|
New poller mechanism and APIs have been introduced in DRAFT state:
|
|
zmq_poller_new, zmq_poller_destroy, zmq_poller_add, zmq_poller_modify,
|
|
zmq_poller_remove, zmq_poller_wait, zmq_poller_wait_all, zmq_poller_add_fd
|
|
zmq_poller_modify_fd, zmq_poller_remove_fd
|
|
and a new supporting struct typedef: zmq_poller_event_t
|
|
They support existing socket type, new thread-safe socket types and file
|
|
descriptors (cross-platform).
|
|
Documentation will be made available in the future before these APIs are declared
|
|
stable.
|
|
|
|
New cross-platform timers helper functions have been introduced in DRAFT state:
|
|
zmq_timers_new, zmq_timers_destroy, zmq_timers_add, zmq_timers_cancel,
|
|
zmq_timers_set_interval, zmq_timers_reset, zmq_timers_timeout,
|
|
zmq_timers_execute
|
|
and a new supporting callback typedef: zmq_timer_fn
|
|
|
|
* Many, many bug fixes. The most important fixes are backported and captured in the
|
|
4.1.x and 4.0.x changelogs.
|
|
|
|
|
|
0MQ version 4.2.0 rc1, released on 2016/11/01
|
|
=============================================
|
|
|
|
* Many changes, see ChangeLog.
|
|
|
|
|
|
0MQ version 4.1.6 stable, released on 2016/11/01
|
|
================================================
|
|
|
|
* Fixed #2051 - getifaddrs can fail with ECONNREFUSED
|
|
|
|
* Fixed #2091 - testutil.hpp fails to build on Windows XP
|
|
|
|
* Fixed #2096 - add tests/CMakeLists.in and version.rc.in to dist tar
|
|
|
|
* Fixed #2107 - zmq_connect with IPv6 "source:port;dest:port" broken
|
|
|
|
* Fixed #2117 - ctx_term assert with inproc zmq_router connect-before-bind
|
|
|
|
* Fixed #2158 - Socket monitor uses internal Pair from multiple threads
|
|
|
|
* Fixed #2161 - messages dropped due to HWM race
|
|
|
|
* Fixed #1325 - alignment issue with zmq_msg_t causes SIGBUS on SPARC and ARM
|
|
|
|
|
|
0MQ version 4.1.5 stable, released on 2016/06/17
|
|
================================================
|
|
|
|
* Fixed #1673 - CMake on Windows put PDB in wrong directory.
|
|
|
|
* Fixed #1723 - Family is not set when resolving NIC on Android.
|
|
|
|
* Fixed #1608 - Windows 7 TCP slow start issue.
|
|
|
|
* Fixed #1806 - uninitialised read in curve getsockopt.
|
|
|
|
* Fixed #1807 - build broken with GCC 6.
|
|
|
|
* Fixed #1831 - potential assertion failure with latest libsodium.
|
|
|
|
* Fixed #1850 - detection issues with tweetnacl/libsodium.
|
|
|
|
* Fixed #1877 - Avoid terminating connections prematurely
|
|
|
|
* Fixed #1887 - zmq_bind IPv4 fallback still tries IPv6
|
|
|
|
* Fixed #1866 - fails to build on SunOS 5.10 / Solaris 10
|
|
|
|
* Fixed #919 - ZMQ_LINGER (related to #1877)
|
|
|
|
* Fixed #114 - cannot unbind with same endpoint with IPv6 enabled.
|
|
|
|
* Fixed #1952 - CMake scripts not part of release tarballs
|
|
|
|
* Fixed #1542 - Fix a crash on Windows when port 5905 is in use.
|
|
|
|
* Fixed #2021 - Fix building on sparc32.
|
|
|
|
|
|
0MQ version 4.1.4 stable, released on 2015/12/18
|
|
================================================
|
|
|
|
* Fixed #1315 - socket monitor hangs if bind/setsockopt failed.
|
|
|
|
* Fixed #1399 - assertion failure in tcp.cpp after network reconnect.
|
|
|
|
* Fixed #1632 - build failure using latest libsodium.
|
|
|
|
* Fixed #1644 - assertion failure in msg.cpp:390 on STREAM sockets.
|
|
|
|
* Fixed #1661 - does not handle IPv6 link local addresses.
|
|
|
|
|
|
0MQ version 4.1.3 stable, released on 2015/08/17
|
|
================================================
|
|
|
|
* Fixed #1532 - getsockopt ZMQ_RCVMORE now resets all bits instead of only 32
|
|
|
|
* Fixed #1445 - zmq::socket_base_t::connect fails on tcp ipv6 address
|
|
|
|
|
|
0MQ version 4.1.2 stable, released on 2015/06/15
|
|
================================================
|
|
|
|
* Added explicit reference to static link exception in every source file.
|
|
|
|
* Bumped ABI version to 5:0:0 since 4.1.x changed the ABI.
|
|
|
|
* Fixed STDINT event interface macros to work with CZMQ 3.0.
|
|
|
|
* Fixed installation of man pages when BUILD_DOC is not set.
|
|
|
|
* Fixed #1428 - regression on single-socket proxies.
|
|
|
|
|
|
0MQ version 4.1.1 stable, released on 2015/06/02
|
|
================================================
|
|
|
|
* Fixed #1208 - fix recursion in automake packaging.
|
|
|
|
* Fixed #1224 - crash when processing empty unsubscribe message.
|
|
|
|
* Fixed #1213 - properties files were missing from source packages.
|
|
|
|
* Fixed #1273 - V3 protocol handler vulnerable to downgrade attacks.
|
|
|
|
* Fixed #1347 - lack way to get peer address.
|
|
|
|
* Fixed #1362 - SUB socket sometimes fails to resubscribe properly.
|
|
|
|
* Fixed #1377, #1144 - failed with WSANOTINITIALISED in some cases.
|
|
|
|
* Fixed #1389 - PUB, PUSH sockets had slow memory leak.
|
|
|
|
* Fixed #1382 - zmq_proxy did not terminate if there were no readers.
|
|
|
|
|
|
0MQ version 4.1.0 rc1, released on 2014/10/14
|
|
=============================================
|
|
|
|
* All issues that were fixed in 4.0.x
|
|
|
|
* Improved client reconnection strategy on errors
|
|
|
|
* GSSAPI security mechanism
|
|
|
|
* SOCKS5 support (ZMQ_SOCKS_PROXY)
|
|
|
|
* ZMQ_ROUTER_HANDOVER
|
|
|
|
* ZMQ_TOS
|
|
|
|
* ZMQ_CONNECT_RID
|
|
|
|
* ZMQ_HANDSHAKE_IVL
|
|
|
|
* ZMQ_IDENTITY_FD
|
|
|
|
* ZMQ_XPUB_NODROP
|
|
|
|
* ZMQ_SRCFD and ZMQ_SHARED message options
|
|
|
|
* Message metadata -- zmq_msg_gets ()
|
|
|
|
* Probe library configuration -- zmq_has ()
|
|
|
|
|
|
0MQ version 4.0.8 stable, released on 2016/06/17
|
|
================================================
|
|
|
|
* Fixed LIBZMQ-949 - zmq_unbind fails for inproc and wildcard endpoints
|
|
|
|
* Fixed #1806 - uninitialised read in curve getsockopt.
|
|
|
|
* Fixed #1807 - build broken with GCC 6.
|
|
|
|
* Fixed #1877 - Avoid terminating connections prematurely
|
|
|
|
* Fixed #1887 - zmq_bind IPv4 fallback still tries IPv6
|
|
|
|
* Fixed #98 - don't require libssp without libsodium on Solaris
|
|
|
|
* Fixed #919 - ZMQ_LINGER (related to #1877)
|
|
|
|
* Fixed #139 - "tempnam" is deprecated.
|
|
|
|
|
|
0MQ version 4.0.7 stable, released on 2015/06/15
|
|
================================================
|
|
|
|
* Fixed #1428 - regression on single-socket proxies.
|
|
|
|
|
|
0MQ version 4.0.6 stable, released on 2015/06/02
|
|
================================================
|
|
|
|
* Fixed #1273 - V3 protocol handler vulnerable to downgrade attacks.
|
|
|
|
* Fixed #1362 - SUB socket sometimes fails to resubscribe properly.
|
|
|
|
* Fixed #1377, #1144 - failed with WSANOTINITIALISED in some cases.
|
|
|
|
* Fixed #1389 - PUB, PUSH sockets had slow memory leak.
|
|
|
|
* Fixed #1382 - zmq_proxy did not terminate if there were no readers.
|
|
|
|
|
|
0MQ version 4.0.5 stable, released on 2014/10/14
|
|
================================================
|
|
|
|
* Fixed #1191; CURVE mechanism does not verify short term nonces.
|
|
|
|
* Fixed #1190; stream_engine is vulnerable to downgrade attacks.
|
|
|
|
* Fixed #1088; assertion failure for WSAENOTSOCK on Windows.
|
|
|
|
* Fixed #1015; race condition while connecting inproc sockets.
|
|
|
|
* Fixed #994; bump so library number to 4.0.0
|
|
|
|
* Fixed #939, assertion failed: !more (fq.cpp:99) after many ZAP requests.
|
|
|
|
* Fixed #872; lost first part of message over inproc://.
|
|
|
|
* Fixed #797, keep-alive on Windows.
|
|
|
|
|
|
0MQ version 4.0.4 stable, released on 2014/03/10
|
|
================================================
|
|
|
|
Bug Fixes
|
|
---------
|
|
|
|
* Fixed #909; out of tree build issue on Linux.
|
|
|
|
* Fixed #888; hangs on terminate when inproc connected but never bound.
|
|
|
|
* Fixed #868; assertion failure at ip.cpp:137 when using port scanner.
|
|
|
|
* Fixed #818; fix timestamp counter on s390/s390x.
|
|
|
|
* Fixed #817; only export zmq_* symbols.
|
|
|
|
* Fixed #797; fixed setting TCP keepalive on Windows.
|
|
|
|
* Fixed #775; compile error on Windows.
|
|
|
|
* Fixed #763; when talking to a ZMTP v1 peer (libzmq 2.2), a socket would
|
|
send an extra identity frame at the start of the connection.
|
|
|
|
* Fixed LIBZMQ-576 - Crash closing a socket after zmq_msg_send returns
|
|
EAGAIN (reverts LIBZMQ-497)
|
|
|
|
* Fixed LIBZMQ-584; subscription filters getting lost on reconnection.
|
|
|
|
|
|
0MQ version 4.0.3 stable, released on 2013/11/24
|
|
================================================
|
|
|
|
Bug Fixes
|
|
---------
|
|
|
|
* Fixed test_many_sockets case, which failed when process socket limit
|
|
was 1024.
|
|
|
|
|
|
0MQ version 4.0.2 stable, released on 2013/11/24
|
|
================================================
|
|
|
|
Bug Fixes
|
|
---------
|
|
|
|
* Fixed LIBZMQ-583 - improved low-res timer for Windows
|
|
* Fixed LIBZMQ-578 - z85_decode was extremely slow
|
|
* Fixed LIBZMQ-577 - fault in man pages.
|
|
* Fixed LIBZMQ-574 - assertion failure when ran out of system file handles
|
|
* Fixed LIBZMQ-571 - test_stream failing in some cases
|
|
* Fixed LIBZMQ-569 - Socket server crashes with random client data and when
|
|
talking to 2.2 versions
|
|
* Fixed LIBZMQ-39 - Bad file descriptor during shutdown
|
|
* Pulled expected failing test_linger.cpp from release
|
|
* Reduced pause time in tests to allow "make check" to run faster
|
|
|
|
|
|
0MQ version 4.0.1 stable, released on 2013/10/08
|
|
================================================
|
|
|
|
Changes
|
|
-------
|
|
|
|
* Updated CURVE mechanism to track revised RFC 27 (INITIATE vouch).
|
|
|
|
The INITIATE command vouch box is Box[C',S](C->S') instead of
|
|
Box[C'](C->S), to reduce the risk of client impersonation, as per
|
|
https://codesinchaos.wordpress.com/2012/09/09/curvecp-1/.
|
|
|
|
* Fixed LIBZMQ-567, adding abstract namespaces for IPC sockets on Linux.
|
|
|
|
Converts an initial strudel or "at sign" (@) in the Unix socket path to
|
|
a NULL character ('\0') indicating that the socket uses the abstract
|
|
namespace instead of the filesystem namespace. For instance, binding a
|
|
socket to 'ipc://@/tmp/tester' will not create a file associated with
|
|
the socket whereas binding to 'ipc:///tmp/tester' will create the file
|
|
/tmp/tester. See issue 567 for more information.
|
|
|
|
* Added zmq_z85_encode and zmq_z85_decode to core libzmq API.
|
|
|
|
* Added zmq_curve_keypair to core libzmq API.
|
|
|
|
* Bumped library ABI version to 4:0:1.
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Fixed some build/test errors on OS/X + Clang++.
|
|
|
|
* Fixed LIBZMQ-565, typo in code.
|
|
|
|
* Fixed LIBZMQ-566, dealer-to-router connections sometimes failing.
|
|
|
|
* Fixed builds for AIX, MSVC 2008, OS/X with clang++, Solaris.
|
|
|
|
* Improved CURVE handshake error handling.
|
|
|
|
|
|
0MQ version 4.0.0 (RC1), released on 2013/09/20
|
|
===============================================
|
|
|
|
Major changes
|
|
-------------
|
|
|
|
* New wire level protocol, ZMTP/3.0, see http://rfc.zeromq.org/spec:23.
|
|
Does not yet implement the SUBSCRIBE, CANCEL, PING, and PONG commands.
|
|
|
|
* New security framework, from plain user+password to strong encryption,
|
|
see section below. See http://hintjens.com/blog:49 for a tutorial.
|
|
|
|
* New ZMQ_STREAM socket type for working as a TCP client or server. See:
|
|
tests/test_stream.cpp.
|
|
|
|
Improvements
|
|
------------
|
|
|
|
* You can now connect to an inproc:// endpoint that does not already
|
|
exist. This means inproc:// no longer needs careful set-up, but it may
|
|
break code that relied on the old behaviour. See:
|
|
tests/test_inproc_connect.cpp.
|
|
|
|
* Libzmq now checks socket types at connection time, so that trying to
|
|
connect a 'wrong' socket type will fail.
|
|
|
|
* New zmq_ctx_shutdown API method will shutdown a context and send ETERM
|
|
to blocking calls, without blocking. Use zmq_ctx_term to finalise the
|
|
process.
|
|
|
|
* The regression test suite has been significantly extended and improved.
|
|
|
|
* Contexts can now be terminated in forked child processes. See:
|
|
tests/test_fork.cpp.
|
|
|
|
* zmq_disconnect now respects the linger setting on sockets.
|
|
|
|
* New zmq_send_const API method to send constant data (without copying).
|
|
See: tests/test_inproc_connect.cpp.
|
|
|
|
* Added CMake support for static libraries.
|
|
|
|
* Added test cases for socket semantics as defined in RFCs 28, 29, 30, 31.
|
|
See: tests/test_spec_*.cpp.
|
|
|
|
* New socket option, ZMQ_PROBE_ROUTER triggers an empty message on connect.
|
|
See: tests/test_probe_router.cpp.
|
|
|
|
* New socket option, ZMQ_REQ_CORRELATE allows for correlation of replies
|
|
from a REP socket. See: tests/test_req_correlate.cpp.
|
|
|
|
* New socket option, ZMQ_REQ_RELAXED, lets you disable the state machine
|
|
on a REQ socket, so you can send multiple requests without waiting for
|
|
replies, and without getting an EFSM error. See:
|
|
tests/test_req_relaxed.cpp.
|
|
|
|
* New socket option, ZMQ_CONFLATE restricts the outgoing and incoming
|
|
socket buffers to a single message. See: tests/test_conflate.cpp.
|
|
|
|
Deprecated Options
|
|
------------------
|
|
|
|
* ZMQ_IPV4ONLY deprecated and renamed to ZMQ_IPV6 so that options are
|
|
consistently "off" by default.
|
|
|
|
* ZMQ_DELAY_ATTACH_ON_CONNECT deprecated, and renamed to ZMQ_IMMEDIATE.
|
|
See: tests/test_immediate.cpp.
|
|
|
|
Security Framework
|
|
------------------
|
|
|
|
Based on new ZMTP wire level protocol that negotiates a security
|
|
"mechanism" between client and server before exchanging any other data.
|
|
|
|
Security mechanisms are extensible. ZMTP defines three by default:
|
|
|
|
* NULL - classic ZeroMQ, with no authentication. See
|
|
http://rfc.zeromq.org/spec:23.
|
|
|
|
* PLAIN - plain-text username + password authentication. See
|
|
http://rfc.zeromq.org/spec:24.
|
|
|
|
* CURVE - secure authentication and encryption based on elliptic curve
|
|
cryptography, using the Curve25519 algorithm from Daniel Bernstein and
|
|
based on CurveCP's security handshake. See http://rfc.zeromq.org/spec:25,
|
|
http://rfc.zeromq.org/spec:26, and http://curvecp.org.
|
|
|
|
Authentication is done by pluggable "authenticators" that connect to libzmq
|
|
over an inproc endpoint, see http://rfc.zeromq.org/spec:27.
|
|
|
|
Socket options to configure PLAIN security on client or server:
|
|
|
|
* ZMQ_PLAIN_SERVER, ZMQ_PLAIN_USERNAME, ZMQ_PLAIN_PASSWORD. See
|
|
tests/test_security_plain.
|
|
|
|
Socket options to configure CURVE security on client or server:
|
|
|
|
* ZMQ_CURVE_SERVER, ZMQ_CURVE_PUBLICKEY, ZMQ_CURVE_SECRETKEY,
|
|
ZMQ_CURVE_SERVERKEY. See tests/test_security_curve.cpp.
|
|
|
|
Socket options to configure "domain" for ZAP handler:
|
|
|
|
* ZMQ_ZAP_DOMAIN, see tests/test_security_null.cpp.
|
|
|
|
Support for encoding/decoding CURVE binary keys to ASCII:
|
|
|
|
* zmq_z85_encode, zmq_z85_decode.
|
|
|
|
Other issues addressed in this release
|
|
--------------------------------------
|
|
|
|
* LIBZMQ-525 Multipart upstreaming from XSUB to XPUB
|
|
|
|
|
|
0MQ version 3.2.4 stable, released on 2013/09/20
|
|
================================================
|
|
|
|
* LIBZMQ-84 (Windows) Assertion failed: Address already in use at signaler.cpp:80
|
|
* LIBZMQ-456 ZMQ_XPUB_VERBOSE does not propagate in a tree of XPUB/XSUB devices
|
|
* LIBZMQ-532 (Windows) critical section not released on error
|
|
* LIBZMQ-569 Detect OpenPGM 5.2 system library
|
|
* LIBZMQ-563 Subscribers sometimes stopped receiving messages (aka LIBZMQ-541)
|
|
* LIBZMQ-XXX Added support for Travis Continuous Integration
|
|
* LIBZMQ-XXX Several improvements to MSVC support
|
|
|
|
|
|
0MQ version 3.2.3 stable, released on 2013/05/02
|
|
================================================
|
|
|
|
Issues addressed in this release
|
|
--------------------------------
|
|
|
|
* LIBZMQ-526 Assertion failure "Invalid argument (tcp_connecter.cpp:285)"
|
|
* LIBZMQ-446 Setting the DSCP bits by default causes CAP_NET_ADMIN error
|
|
* LIBZMQ-496 Crash on heavy socket opening/closing: Device or resource busy (mutex.hpp:90)
|
|
* LIBZMQ-462 test_connect_delay fails at test_connect_delay.cpp:80
|
|
* LIBZMQ-497 Messages getting dropped
|
|
* LIBZMQ-488 signaler.cpp leaks the win32 Event Handle
|
|
* LIBZMQ-476 zmq_disconnect has no effect for inproc sockets
|
|
* LIBZMQ-475 zmq_disconnect does not sent unsubscribe messages
|
|
|
|
|
|
0MQ version 3.2.2 stable, released on 2012/11/23
|
|
================================================
|
|
|
|
Issues addressed in this release
|
|
--------------------------------
|
|
|
|
* LIBZMQ-384 No meta data for ZMQ_EVENT_DISCONNECTED monitor event
|
|
* LIBZMQ-414 Error in ARM/Thumb2 assembly (atomic_ptr.hpp)
|
|
* LIBZMQ-417 zmq_assert (!incomplete_in) in session_base.cpp 228
|
|
* LIBZMQ-447 socket_base_t::recv() packet loss and memory leak at high receiving rate
|
|
* LIBZMQ-448 Builds fail on older versions of GCC
|
|
* LIBZMQ-449 Builds fail on AIX
|
|
* LIBZMQ-450 lt-test_monitor: fails with assertion at test_monitor.cpp:81
|
|
* LIBZMQ-451 ZMQ_ROUTER_MANDATORY blocks forever
|
|
* LIBZMQ-452 test_connect_delay.cpp:175:12: error: 'sleep' was not declared in this scope
|
|
* LIBZMQ-458 lt-test_router_mandatory fails with assertion at test_router_mandatory.cpp:53
|
|
* LIBZMQ-459 Assertion failed: encoder (stream_engine.cpp:266
|
|
* LIBZMQ-464 PUB socket with HWM set leaks memory
|
|
* LIBZMQ-465 PUB/SUB results in 80-90% of CPU load
|
|
* LIBZMQ-468 ZMQ_XPUB_VERBOSE & unsubscribe
|
|
* LIBZMQ-472 Segfault in zmq_poll in REQ to ROUTER dialog
|
|
|
|
|
|
0MQ version 3.2.1 (RC2), released on 2012/10/15
|
|
===============================================
|
|
|
|
Issues addressed in this release
|
|
--------------------------------
|
|
|
|
* Fixed issue xxx - handle insufficient resources on accept() properly.
|
|
* Fixed issue 443 - added ZMQ_XPUB_VERBOSE setsocket option.
|
|
* Fixed issue 433 - ZeroMQ died on receiving EPIPE
|
|
* Fixed issue 423 - test_pair_tcp hangs
|
|
* Fixed issue 416 - socket_base: fix 'va_list' has not been declared error
|
|
* Fixed issue 409 - Pub-sub interoperability between 2.x and 3.x.
|
|
* Fixed issue 404 - zmq_term can not safely be re-entered with pgm transport
|
|
* Fixed issue 399 - zmq_ctx_set_monitor callback is not works properly
|
|
* Fixed issue 393 - libzmq does not build on Android (socklen_t signed comparison)
|
|
* Fixed issue 392 - Interaction with pyzmq on Android
|
|
* Fixed issue 389 - Assertion failure in mtrie.cpp:317
|
|
* Fixed issue 388 - tests/test_monitor.cpp has no newline at EOF (causes compile error)
|
|
* Fixed issue 387 - "sa_family_t sa_family;" in pgm_socket.cpp is unused variable
|
|
* Fixed issue 385 - Rework ZMQ_FAIL_UNROUTABLE socket option to actually work
|
|
* Fixed issue 382 - Current libzmq doesn't compile on Android NDK
|
|
* Fixed issue 377 - ZeroMQ will not build on Windows with OpenPGM
|
|
* Fixed issue 375 - error: unused variable 'sa_family'
|
|
* Fixed issue 373 - Unable to build libzmq/zeromq3.x on AIX7
|
|
* Fixed issue 372 - Unable to build libzmq/zeromq3.x on HPUX 11iv3
|
|
* Fixed issue 371 - Unable to build libzmq/zeromq3.x on RHEL5/SLES10
|
|
* Fixed issue 329 - wsa_error_to_errno() calls abort() on WSAEACCES
|
|
* Fixed issue 309 - Assertion failed: options.recv_identity (socket_base.cpp:864)
|
|
* Fixed issue 211 - Assertion failed: msg_->flags & ZMQ_MSG_MORE (rep.cpp:81)
|
|
|
|
API changes
|
|
-----------
|
|
|
|
* zmq_device () deprecated and replaced by zmq_proxy ().
|
|
* zmq_ctx_set_monitor () replaced by zmq_socket_monitor ().
|
|
* ZMQ_ROUTER_BEHAVIOR/ZMQ_FAIL_UNROUTABLE renamed experimentally to
|
|
ZMQ_ROUTER_MANDATORY.
|
|
|
|
|
|
0MQ version 3.2.0 (RC1), released on 2012/06/05
|
|
===============================================
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Fixed issue 264 - Potential bug with linger, messages dropped during
|
|
socket close.
|
|
|
|
* Fixed issue 293 - libzmq doesn't follow the ZMTP/1.0 spec (did not
|
|
set reserved bits to 0).
|
|
|
|
* Fixed issue 303 - Assertion failure in pgm_sender.cpp:102.
|
|
|
|
* Fixed issue 320 - Assertion failure in connect_session.cpp:96 when
|
|
connecting epgm to an invalid endpoint.
|
|
|
|
* Fixed issue 325 - Assertion failure in xrep.cpp:93, when two sockets
|
|
connect using the same identity.
|
|
|
|
* Fixed issue 327 - Assertion failure in mtrie.cpp:246, when
|
|
unsubscribing from channel.
|
|
|
|
* Fixed issue 346 - Assertion failure in signaler.cpp:155, when using a
|
|
closed socket.
|
|
|
|
* Fixed issue 328 - unsubscribe wrongly clears multiple subscriptions.
|
|
|
|
* Fixed issue 330 - IPC listener does not remove unix domain stream file
|
|
when terminated.
|
|
|
|
* Fixed issue 334 - Memory leak in session_base.cpp:59.
|
|
|
|
* Fixed issue 369 - ROUTER cannot close/reopen while DEALER connected.
|
|
|
|
Operating systems
|
|
-----------------
|
|
|
|
* Fixed issue 301 - HPUX 11iv2 - build fails, CLOCK_MONOTONIC
|
|
undefined.
|
|
|
|
* Fixed issue 324 - OS/X - build fails, ECANTROUTE undefined.
|
|
|
|
* Fixed issue 368 - Solaris / Sun C++ - build fails, no insert method
|
|
in multimap classes.
|
|
|
|
* Fixed issue 366 - Windows - ports not freed after crash.
|
|
|
|
* Fixed issue 355 - Windows - build fails, MSVC solution file is out of
|
|
date.
|
|
|
|
* Fixed issue 331 - FreeBSD 8 and 9 - getaddrinfo fails with
|
|
EAI_BADFLAGS on AI_V4MAPPED flag.
|
|
|
|
* Fixed issue xxx - Added support for WinCE.
|
|
|
|
Performance
|
|
-----------
|
|
|
|
* Fixed issue xxx - Implemented atomic operations for ARMv7a (runs 15-20% faster).
|
|
|
|
API changes
|
|
-----------
|
|
|
|
* Fixed issue 337 - Cleaned-up context API:
|
|
|
|
zmq_ctx_new() - create new context (will deprecate zmq_init)
|
|
zmq_ctx_destroy() - destroy context (will deprecate zmq_term)
|
|
zmq_ctx_set() - set context property
|
|
zmq_ctx_get() - get context property
|
|
|
|
* Fixed issue xxx - Cleaned-up message API:
|
|
|
|
zmq_msg_send() - send a message (will deprecate zmq_sendmsg)
|
|
zmq_msg_recv() - receive a message (will deprecate zmq_recvmsg)
|
|
zmq_msg_more() - indicate whether this is final part of message
|
|
zmq_msg_get() - get message property
|
|
zmq_msg_set() - set message property
|
|
|
|
* Fixed issue xxx - Added context monitoring API:
|
|
|
|
zmq_ctx_set_monitor() - configure monitor callback.
|
|
|
|
* Fixed issue xxx - Added unbind/disconnect API:
|
|
|
|
zmq_unbind() - unbind socket.
|
|
zmq_disconnect() - disconnect socket.
|
|
|
|
* Fixed issue xxx - Added ZMQ_TCP_ACCEPT_FILTER setsockopt() for listening TCP sockets.
|
|
|
|
* Fixed issue 336 - Removed sys: transport.
|
|
|
|
* Fixed issue 333 - Added zmq_device function back to API (was removed
|
|
in 3.0).
|
|
|
|
* Fixed issue 340 - Add support for MAX_SOCKETS to new context API.
|
|
|
|
|
|
OMQ version 3.1.0 (beta), released on 2011/12/18
|
|
================================================
|
|
|
|
General information
|
|
-------------------
|
|
|
|
Based on community consensus, the 0MQ 3.1.x release reverts a number of
|
|
features introduced in version 3.0. The major reason for these changes is
|
|
improving backward compatibility with 0MQ 2.1.x.
|
|
|
|
Development of the 0MQ 3.0.x series will be discontinued, and users are
|
|
encouraged to upgrade to 3.1.
|
|
|
|
The 0MQ 3.1.x releases use ABI version 3.
|
|
|
|
Reverted functionality
|
|
----------------------
|
|
|
|
The following functionality present in 0MQ 3.0 has been reverted:
|
|
|
|
* Wire format changes. The 0MQ 3.1 wire format is identical to that of 0MQ
|
|
2.1.
|
|
|
|
* LABELs and COMMANDs have been removed.
|
|
|
|
* Explicit identies are re-introduced, however they can be used only for
|
|
explicit routing, not for durable sockets.
|
|
|
|
* The ZMQ_ROUTER and ZMQ_DEALER socket types are once again aliases for
|
|
ZMQ_XREQ and ZMQ_XREP.
|
|
|
|
New functionality
|
|
-----------------
|
|
|
|
* The zmq_getmsgopt() function has been introduced.
|
|
|
|
* Experimental IPv6 support has been introduced. This is disabled by
|
|
default, see the zmq_setsockopt() documentation for enabling it.
|
|
|
|
Other changes
|
|
-------------
|
|
|
|
* The default HWM for all socket types has been set to 1000.
|
|
|
|
* Many bug fixes.
|
|
|
|
Building
|
|
--------
|
|
|
|
* The dependency on libuuid has been removed.
|
|
|
|
* Support for building on Android, and with MSVC 10 has been added.
|
|
|
|
0MQ version 3.0.0 (alpha), released on 2011/07/12
|
|
=================================================
|
|
|
|
New functionality
|
|
-----------------
|
|
|
|
* A zmq_ctx_set_monitor() API to register a callback / event sink for changes
|
|
in socket state.
|
|
|
|
* POSIX-compliant zmq_send and zmq_recv introduced (uses raw buffer
|
|
instead of message object).
|
|
|
|
* ZMQ_MULTICAST_HOPS socket option added. Sets the appropriate field in
|
|
IP headers of PGM packets.
|
|
|
|
* Subscription forwarding. Instead of filtering on consumer, the
|
|
subscription is moved as far as possible towards the publisher and
|
|
filtering is done there.
|
|
|
|
* ZMQ_XPUB, ZMQ_XSUB introduced. Allow to create subscription-
|
|
forwarding-friendly intermediate devices.
|
|
|
|
* Add sockopt ZMQ_RCVTIMEO/ZMQ_SNDTIMEO. Allow to set timeout for
|
|
blocking send/recv calls.
|
|
|
|
* A new LABEL flag was added to the wire format. The flag distinguishes
|
|
message parts used by 0MQ (labels) from user payload message parts.
|
|
|
|
* There is a new wire format for the REQ/REP pattern. First, the empty
|
|
bottom-of-the-stack message part is not needed any more, the LABEL
|
|
flag is used instead. Secondly, peer IDs are 32-bit integers rather
|
|
than 17-byte UUIDs.
|
|
|
|
* The REQ socket now drops duplicate replies.
|
|
|
|
* Outstanding requests & replies associated with a client are dropped
|
|
when the clients dies. This is a performance optimisation.
|
|
|
|
* Introduced ZMQ_ROUTER and ZMQ_DEALER sockets. These mimic the
|
|
functionality of ZMQ_ROUTER and ZMQ_DEALER in 0MQ/2.1.x. Guarantees
|
|
backward compatibility for exsiting code.
|
|
|
|
* Removed dependency on OS socketpair buffer size. No more asserts in
|
|
mailbox.cpp because of low system limit of sockepair buffer size.
|
|
|
|
API improvements
|
|
----------------
|
|
|
|
* Obsolete constants ZMQ_UPSTREAM and ZMQ_DOWNSTREAM removed. Use
|
|
ZMQ_PUSH and ZMQ_PULL instead.
|
|
|
|
* Timeout in zmq_poll is in milliseconds instead of microseconds. This
|
|
makes zmq_poll() compliant with POSIX poll()
|
|
|
|
* ZMQ_MCAST_LOOP removed. There's no support for multicast over
|
|
loopback any more. Use IPC or TCP isntead.
|
|
|
|
* zmq_send/zmq_recv was renamed zmq_sendmsg/zmq_recvmsg.
|
|
|
|
* ZMQ_RECOVERY_IVL and ZMQ_RECOVERY_IVL_MSEC reconciled. The new option
|
|
is named ZMQ_RECOVERY_IVL and the unit is milliseconds.
|
|
|
|
* Option types changed. Most of the numeric types are now represented
|
|
as 'int'.
|
|
|
|
* ZMQ_HWM split into ZMQ_SNDHWM and ZMQ_RCVHWM. This makes it possible
|
|
to control message flow separately for each direction.
|
|
|
|
* ZMQ_NOBLOCK renamed ZMQ_DONTWAIT. That makes it POSIX-compliant.
|
|
|
|
Less is More
|
|
------------
|
|
|
|
* Pre-built devices and zmq_device() removed. Should be made available
|
|
as a separate project(s).
|
|
|
|
* ZMQ_SWAP removed. Writing data to disk should be done on top of 0MQ,
|
|
on inside it.
|
|
|
|
* C++ binding removed from the core. Now it's a separate project, same
|
|
as any other binding.
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Many.
|
|
|
|
Building
|
|
--------
|
|
|
|
* Make pkg-config dependency conditional.
|
|
|
|
Distribution
|
|
------------
|
|
|
|
* Removed Debian packaging, which is now available at packages.debian.org
|
|
or via apt-get.
|
|
|
|
|
|
0MQ version 2.2.0 (Stable), released on 2012/04/04
|
|
==================================================
|
|
|
|
Changes
|
|
-------
|
|
|
|
* Fixed issue 349, add send/recv timeout socket options.
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Fixed issue 301, fix builds on HP-UX 11iv3 when using either gcc or aCC.
|
|
|
|
* Fixed issue 305, memory leakage when using dynamic subscriptions.
|
|
|
|
* Fixed issue 332, libzmq doesn't compile on Android NDK.
|
|
|
|
* Fixed issue 293, libzmq doesn't follow ZMTP/1.0 spec.
|
|
|
|
* Fixed issue 342, cannot build against zmq.hpp under C++11.
|
|
|
|
|
|
0MQ version 2.1.11 (Stable), released on 2011/12/18
|
|
===================================================
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Fixed issue 290, zmq_poll was using system time instead of monotonic
|
|
clock (Mika Fischer).
|
|
|
|
* Fixed issue 281, crash on heavy socket creation - assertion failure in
|
|
mutex.hpp:91. (Mika Fischer).
|
|
|
|
* Fixed issue 273, O_CLOEXEC flag used in ip.cpp:192 is supported only
|
|
on Linux kernels 2.6.27+
|
|
|
|
* Fixed issue 261, assertion failure in kqueue.cpp:76.
|
|
|
|
* Fixed issue 269, faulty diagnostic code in 2.1.10.
|
|
|
|
* Fixed issue 254, assertion failure at tcp_socket.cpp:229 on ENOTCONN.
|
|
|
|
Changes
|
|
-------
|
|
|
|
* Now builds properly on AIX 6.1 (AJ Lewis).
|
|
|
|
* Builds using libdcekt on HP-UX (AJ Lewis).
|
|
|
|
* New upstream OpenPGM maintenance release 5.1.118.
|
|
|
|
* Enabled debugging on assertion failure on Windows (Paul Betts).
|
|
|
|
|
|
0MQ version 2.1.10 (Stable), released on 2011/10/03
|
|
===================================================
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Fixed issue 140, SWAP failed with assertion failure in pipe.cpp:187
|
|
if the current directory was not writeable. Behavior now is to return
|
|
-1 at zmq_setsockopt in this situation.
|
|
|
|
* Fixed issue 207, assertion failure in zmq_connecter.cpp:48, when an
|
|
invalid zmq_connect() string was used, or the hostname could not be
|
|
resolved. The zmq_connect() call now returns -1 in both those cases.
|
|
|
|
* Fixed issue 218, sockets not opened with SOCK_CLOEXEC, causing fork/exec
|
|
to sit on sockets unnecessarily.
|
|
|
|
* Fixed issue 250, build errors on Windows (Mikko Koppanen).
|
|
|
|
* Fixed issue 252, assertion failure in req.cpp:87 and req.cpp:88 (Mikko
|
|
Koppanen).
|
|
|
|
|
|
0MQ version 2.1.9 (Stable), released on 2011/08/29
|
|
==================================================
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Fixed issue 240, assertion failure in pgm_socket.cpp:437.
|
|
|
|
* Fixed issue 238, assertion failure in zmq.cpp:655, when zmq_poll is
|
|
used on an empty set, on Windows.
|
|
|
|
* Fixed issue 239, assertion failure in zmq.cpp:223, when ZMQ_SWAP was
|
|
used with explicit identities and multiple SUB sockets.
|
|
|
|
* Fixed issue 236, zmq_send() and zmq_recv() did not always return
|
|
error conditions such as EFSM properly. This bug was introduced in
|
|
version 2.1.8 by the backport of changes for issue 231.
|
|
|
|
Building
|
|
--------
|
|
|
|
* 0MQ support for Android added (Bill Roberts, Mikko Koppanen).
|
|
|
|
|
|
0MQ version 2.1.8 (RC), released on 2011/07/28
|
|
==============================================
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Fixed issue 223, assertion failure in tcp_connecter.cpp:300 when
|
|
connecting to a server that is on an unreachable network (errno is
|
|
equal to ENETUNREACH).
|
|
|
|
* Fixed issue 228, assertion failure at rep.cpp:88 when HWM was reached.
|
|
|
|
* Fixed issue 231, assertion failure at mailbox.cpp:183 when too many
|
|
pending socketpair operations were queued (major backport from 3.0).
|
|
|
|
* Fixed issue 234, assertion failure at mailbox.cpp:77 when Ctrl-C was
|
|
used (only affected git master following backport for 231).
|
|
|
|
* Fixed issue 230, SIGPIPE killing servers when client disconnected, hit
|
|
OS/X only.
|
|
|
|
Note: this release was renamed "release candidate" due to issue 236,
|
|
fixed in 2.1.9.
|
|
|
|
|
|
0MQ version 2.1.7 (Stable), released on 2011/05/12
|
|
==================================================
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Fixed issue 188, assert when closing socket that had unread multipart
|
|
data still on it (affected PULL, SUB, ROUTER, and DEALER sockets).
|
|
|
|
* Fixed issue 191, message atomicity issue with PUB sockets (an old issue).
|
|
|
|
* Fixed issue 199 (affected ROUTER/XREP sockets, an old issue).
|
|
|
|
* Fixed issue 206, assertion failure in zmq.cpp:223, affected all sockets
|
|
(bug was introduced in 2.1.6 as part of message validity checking).
|
|
|
|
* Fixed issue 211, REP socket asserted if sent malformed envelope (old issue
|
|
due to abuse of assertions for error checking).
|
|
|
|
* Fixed issue 212, reconnect failing after resume from sleep on Windows
|
|
(due to not handling WSAENETDOWN).
|
|
|
|
* Properly handle WSAENETUNREACH on Windows (e.g. if client connects
|
|
before server binds).
|
|
|
|
* Fixed memory leak with threads on Windows.
|
|
|
|
Changes
|
|
-------
|
|
|
|
* Checks zmq_msg_t validity at each operation.
|
|
|
|
* Inproc performance tests now work on Windows.
|
|
|
|
* PGM wire format specification improved in zmq_pgm(7)
|
|
|
|
* Added thread latency/throughput performance examples.
|
|
|
|
* Added "--with-system-pgm" configure option to use already installed
|
|
OpenPGM.
|
|
|
|
* Runtime checking of socket and context validity, to catch e.g. using a
|
|
socket after closing it, or passing an invalid pointer to context/socket
|
|
methods.
|
|
|
|
* Test cases moved off port 5555, which conflicts with other services.
|
|
|
|
* Clarified zmq_poll man page that the resolution of the timeout is 1msec.
|
|
|
|
|
|
0MQ version 2.1.6 (Broken), released on 2011/04/26
|
|
==================================================
|
|
|
|
Note that this version contained a malformed patch and is not usable.
|
|
It is not available for download, but is available in the git via the
|
|
2.1.6 tag.
|
|
|
|
0MQ version 2.1.5 (Broken), released on 2011/04/20
|
|
==================================================
|
|
|
|
Note that this version contained a malformed patch and is not usable.
|
|
It is not available for download, but is available in the git via the
|
|
2.1.5 tag.
|
|
|
|
|
|
0MQ version 2.1.4 (Stable), released on 2011/03/30
|
|
==================================================
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Fix to OpenPGM which was asserting on small messages (Steven McCoy).
|
|
|
|
Changes
|
|
-------
|
|
|
|
* Upgraded OpenPGM to version 5.1.115 (Pieter Hintjens).
|
|
|
|
* OpenPGM build changed to not install OpenPGM artifacts.
|
|
|
|
|
|
0MQ version 2.1.3 (Stable), released on 2011/03/21
|
|
==================================================
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Fix to PUSH sockets, which would sometimes deliver tail frames of a
|
|
multipart message to new subscribers (Martin Sustrik).
|
|
|
|
* Fix to PUB sockets, which would sometimes deliver tail frames of a
|
|
multipart message to new subscribers (Martin Sustrik).
|
|
|
|
* Windows build was broken due to EPROTONOSUPPORT not being defined. This
|
|
has now been fixed (Martin Sustrik).
|
|
|
|
* Various fixes to make OpenVMS port work (Brett Cameron).
|
|
|
|
* Corrected Reference Manual to note that ZMQ_LINGER socket option may be
|
|
set at any time, not just before connecting/binding (Pieter Hintjens).
|
|
|
|
* Fix to C++ binding to properly close sockets (Guido Goldstein).
|
|
|
|
* Removed obsolete assert from pgm_socket.cpp (Martin Sustrik).
|
|
|
|
Changes
|
|
-------
|
|
|
|
* Removed stand-alone devices (/devices subdirectory) from distribution.
|
|
These undocumented programs remain available in older packages (Pieter
|
|
Hintjens).
|
|
|
|
* OpenPGM default rate raised to 40mbps by default (Steven McCoy).
|
|
|
|
* ZMQ_DEALER and ZMQ_ROUTER macros provided to ease upgrade to 0MQ/3.0.
|
|
These are scheduled to replace ZMQ_XREQ and ZMQ_XREP (Pieter Hintjens).
|
|
|
|
* Added man page for zmq_device(3) which was hereto undocumented (Pieter
|
|
Hintjens).
|
|
|
|
* Removed zmq_queue(3), zmq_forwarder(3), zmq_streamer(3) man pages
|
|
(Pieter Hintjens).
|
|
|
|
OpenPGM Integration
|
|
-------------------
|
|
|
|
* Upgraded OpenPGM to version 5.1.114 (Steven McCoy, Mikko Koppanen).
|
|
|
|
* Build system now calls OpenPGM build process directly, allowing easier
|
|
future upgrades of OpenPGM (Mikko Koppanen).
|
|
|
|
* Build system allows configuration with arbitrary versions of OpenPGM
|
|
(./configure --with-pgm=libpgm-x.y.z) (Mikko Koppanen).
|
|
|
|
* OpenPGM uses new PGM_ODATA_MAX_RTE controlling original data instead of
|
|
PGM_TXW_MAX_RTE covering entire channel (Steven McCoy).
|
|
|
|
Building
|
|
--------
|
|
|
|
* 0MQ builds properly on FreeBSD (Mikko Koppanen).
|
|
|
|
|
|
0MQ version 2.1.2 (rc2), released on 2011/03/06
|
|
===============================================
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* 0MQ now correctly handles durable inproc sockets; previously it ignored
|
|
explicit identities on inproc sockets.
|
|
|
|
* Various memory leaks were fixed.
|
|
|
|
* OpenPGM sender/receiver creation fixed.
|
|
|
|
|
|
0MQ version 2.1.1 (rc1), released on 2011/02/23
|
|
===============================================
|
|
|
|
New functionality
|
|
-----------------
|
|
|
|
* New socket option ZMQ_RECONNECT_IVL_MAX added, allows for exponential
|
|
back-off strategy when reconnecting.
|
|
|
|
* New socket option ZMQ_RECOVERY_IVL_MSEC added, as a fine-grained
|
|
counterpart to ZMQ_RECOVERY_IVL (for multicast transports).
|
|
|
|
* If memory is exhausted, 0MQ warns with an explicit message before
|
|
aborting the process.
|
|
|
|
* Size of inproc HWM and SWAP is sum of peers' HWMs and SWAPs (Douglas
|
|
Greager, Martin Sustrik).
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* 0MQ no longer asserts in mailbox.cpp when multiple peers connect with
|
|
the same identity.
|
|
|
|
* 0MQ no longer asserts when rejecting an oversized message.
|
|
|
|
* 0MQ no longer asserts in pipe.cpp when the swap fills up.
|
|
|
|
* zmq_poll now works correctly with an empty poll set.
|
|
|
|
* Many more.
|
|
|
|
Building
|
|
--------
|
|
|
|
* 0MQ now builds correctly on CentOS, Debian 6, and SunOS/gcc3.
|
|
|
|
* Added WithOpenPGM configuration into MSVC builds.
|
|
|
|
Known issues
|
|
------------
|
|
|
|
* OpenPGM integration is still not fully stable.
|
|
|
|
|
|
0MQ version 2.1.0 (Beta), released on 2010/12/01
|
|
================================================
|
|
|
|
New functionality
|
|
-----------------
|
|
|
|
* New semantics for zmq_close () and zmq_term () ensure that all messages
|
|
are sent before the application terminates. This behaviour may be
|
|
modified using the new ZMQ_LINGER socket option; for further details
|
|
refer to the reference manual.
|
|
|
|
* The new socket options ZMQ_FD and ZMQ_EVENTS provide a way to integrate
|
|
0MQ sockets into existing poll/event loops.
|
|
|
|
* Sockets may now be migrated between OS threads, as long as the
|
|
application ensures that a full memory barrier is issued.
|
|
|
|
* The 0MQ ABI exported by libzmq.so has been formalised; DSO symbol
|
|
visibility is used on supported platforms to ensure that only public ABI
|
|
symbols are exported. The library ABI version has been set to 1.0.0 for
|
|
this release.
|
|
|
|
* OpenPGM has been updated to version 5.0.92. This version no longer
|
|
depends on GLIB, and integration with 0MQ should be much improved.
|
|
|
|
* zmq_poll() now honors timeouts precisely, and no longer returns if no
|
|
events are signaled.
|
|
|
|
* Blocking calls now return EINTR if interrupted by the delivery of a
|
|
signal; this also means that language bindings which previously had
|
|
problems with handling SIGINT/^C should now work correctly.
|
|
|
|
* The ZMQ_TYPE socket option was added; this allows retrieval of the socket
|
|
type after creation.
|
|
|
|
* Added a ZMQ_VERSION macro to zmq.h for compile-time API version
|
|
detection.
|
|
|
|
* The ZMQ_RECONNECT_IVL and ZMQ_BACKLOG socket options have been added.
|
|
|
|
Bug fixes
|
|
---------
|
|
|
|
* Forwarder and streamer devices now handle multi-part messages correctly.
|
|
|
|
* 0MQ no longer asserts when malformed data is received on the wire.
|
|
|
|
* 0MQ internal timers now work correctly if the TSC jumps backwards.
|
|
|
|
* The internal signalling functionality (mailbox) has been improved
|
|
to automatically resize socket buffers on POSIX systems.
|
|
|
|
* Many more.
|
|
|
|
Building
|
|
--------
|
|
|
|
* 0MQ now builds correctly with many more non-GCC compilers (Sun Studio,
|
|
Intel ICC, CLang).
|
|
|
|
* AIX and HP-UX builds should work now.
|
|
|
|
* FD_SETSIZE has been set to 1024 by default for MSVC builds.
|
|
|
|
* Windows builds using GCC (MinGW) now work out of the box.
|
|
|
|
Distribution
|
|
------------
|
|
|
|
* A simple framework for regression tests has been added, along with a few
|
|
basic self-tests. The tests can be run using "make check".
|