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@@ -0,0 +1,57 @@ +Crossroads I/O Release Notes +---------------------------- + +This file documents the major changes in between releases of Crossroads +I/O. For a detailed list of changes please refer to Git history, or the +ChangeLog file included with your distribution of Crossroads. + + +Release 1.0.0 (15 March 2012) +----------------------------- + +Initial release. Changes listed here are as compared to libzmq release +3.1. + +New features: + +* The io_threads argument has been removed from xs_init(), and the default + number of I/O threads per context is now 1. +* Context options added - see xs_setctxopt(3): + * The XS_IO_THREADS context option allows the user to specify the size of + the worker thread pool. + * The XS_MAX_SOCKETS context option allows the user to specify the + maximum number of sockets that can exist in parallel within a context. +* Allow setting the source address for TCP connections - see xs_tcp(7). +* ZeroMQ drop-in compatibility mode, enabled by the --enable-libzmq option + to configure. This is a binary compatible emulation of the ZeroMQ 2.1.11 + API, for details see zmq(7). + +Bugfixes: + +* Fix pgm_receiver.cpp: zmq_assert (pending_bytes == 0). (LIBZMQ-205) +* Fix assertion in pgm_sender_t::plug(). (LIBZMQ-303) +* Race condition in zmq_term() fixed. +* Message loss when a SUB socket disconnects fixed. +* Fix data loss for PUB/SUB and unidirectional transports. (LIBZMQ-268) +* Bug in linger implementation fixed. +* Fix IPC transport domain socket stream file not being removed when + connection is closed. +* Removal of pipe from dist_t fixed. +* Only use AI_V4MAPPED if defined, and don't use it on FreeBSD. + +Optimisation: + +* Several optimisations to reduce the memory size of PUB/SUB subscription + map. +* Avoid one extra call to poll() when there are no more data to send. + +Build: + +* MSVC build updated to use MSVC2010 instead of MSVC2008. +* configure prints out a summary of XS configuration. + +Self tests: + +* Many more tests have been added, see the tests/ subdirectory. +* The self tests can now be run from a MSVC build, see the "tests" project. + |