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CZMQ 4.2.0
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@sappo sappo released this 10 Feb 17:53
v4.2.0
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bluca Luca Boccassi
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CZMQ version 4.2.0 stable, released on 2019/02/10

  • Note for packagers: as pkg-config's Requires.private is now used to properly
    propagate dependencies for static builds, the libczmq*-dev or czmq-devel or
    equivalent package should now depend on the libfoo-dev or foo-devel packages
    of all the libraries that czmq is linked against, or pkg-config --libs libczmq
    will fail due to missing dependencies on end users machines.

  • New STABLE APIs have been added to wrap new libzmq context
    options:

    • zsys_thread_name_prefix, zsys_set_thread_name_prefix
    • zsys_thread_affinity_cpu_add, zsys_thread_affinity_cpu_remove
      See zsys manpage for more details.

  • New STABLE zsock API to match libzmq's 4.3.0 stable socket options:

    • zsock_bindtodevice, zsock_set_bindtodevice
    • zsock_gssapi_service_principal_nametype, zsock_set_gssapi_service_principal_nametype
    • zsock_gssapi_principal_nametype, zsock_set_gssapi_principal_nametype
      See zsock manpage for more details.

  • New DRAFT zsock API to match libzmq's 4.3.0 stable socket options:

    • zsock_router_notify, zsock_set_router_notify
    • zsock_multicast_loop, zsock_set_multicast_loop
    • zsock_metadata, zsock_set_metadata
    • zsock_loopback_fastpath, zsock_set_loopback_fastpath
    • zsock_zap_enforce_domain, zsock_set_zap_enforce_domain
      See zsock manpage for more details.

  • New DRAFT zconfig API to duplicate a zconfig instance:

    • zconfig_dup
      See zconfig manpage for more details.

  • New DRAFT zproxy functionality to let SUB/XSUB subscribe to topics by appending
    additional strings to the FRONTEND/BACKEND control messages.
    See zproxy manpage for more details.

  • New DRAFT zsys APIs to print python-like formatted strings:

    • zsys_zprintf
    • zsys_zprintf_error
    • zsys_zplprintf
    • zsys_zplprintf_error
      See zsys manpage for more details.

  • New DRAFT zgossip API to unpublish to stop sending a key/value pair to the
    cluster. Use the UNPUBLISH keyword string as a command.
    See zconfig manpage for more details.

  • New DRAFT zlistx API to pack and unpack zframes:

    • zlistx_pack, zlistx_unpack
      zlistx are now supported by the zsock_send/receive APIs with type "l".
      See zlistx manpage for more details.

  • New DRAFT zlistx API to pack and unpack zframes:

    • zlistx_pack, zlistx_unpack
      zlistx are now supported by the zsock_send/receive APIs with type "l".
      See zlistx manpage for more details.

  • New DRAFT zhttp_client, zhttp_server, zhttp_server_options, zhttp_request and
    zhttp_response to build both server and client http applications.
    Requires linking with libcurl and libmicrohttpd.
    See zhttp_* manpages for more details.

  • New DRAFT zchunk API to create zero-copy chunks:

    • zchunk_frommem
    • zchunk_packx
      See zchunk manpage for more details.

  • Many fixes and improvements to the zproc and zargs DRAFT classes.

  • Fixed #1825 - zbeacon_test and zpoller_test hang indefinitely with libzmq 2.x.

  • Fixed #1899 - zsys_udp_new leaks file descriptor when process is exec'd.

  • Fixed #1907 - build fails on debian/kfreebsd.

  • Fixed #1948 - zlistx_head always returns NULL.

  • Fixed #1959 - zhash_pack crash on armv7 due to unaligned pointer access.

  • Fixed #1961 - unnecessary uuid includes in public headers break builds without
    libuuid.

  • Fixed #1995 - timers are called twice if they change the pollset.

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