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From: Eric Wong <normalperson@yhbt.net>
Newsgroups: gmane.comp.lang.ruby.posix-mq.general
Subject: [ANN] posix_mq 0.4.0
Date: Sat, 13 Mar 2010 10:01:06 +0000
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POSIX message queues allow local processes to exchange data in the form
of messages.  This API is distinct from that provided by System V
message queues, but provides similar functionality.

* http://bogomips.org/ruby_posix_mq/
* ruby.posix.mq@librelist.com
* git://git.bogomips.org/ruby_posix_mq.git

Changes:

Small bugfixes and small API changes to avoid potential
issues/misuse are the focus of this release.

For non-blocking operation, the GVL is no longer bounced.  This
reduces synchronization/scheduling overhead when used in
non-blocking applications.

Small cleanups and documentation improvements, too.

* make POSIX_MQ#dup and POSIX_MQ#clone no-op
* do not release GVL for non-blocking operations
* do not release GVL when unlinking/opening
* POSIX_MQ#<< does not release GVL when non-blocking
* avoid shadow warnings
* README: add mailing list archives info
* POSIX_MQ#to_io works under FreeBSD, too
* fix potential race with notify(&block)
* add TODO item for using netlink under Linux
* remove non-portable #warning CPP directive
* ensure POSIX_MQ#name is clobber-proof

-- 
Eric Wong