[lttng-dev] [RELEASE] Userspace RCU 0.7.7

Mathieu Desnoyers mathieu.desnoyers at efficios.com
Tue Jun 18 21:12:27 EDT 2013


liburcu is a LGPLv2.1 userspace RCU (read-copy-update) library. This
data synchronization library provides read-side access which scales
linearly with the number of cores. It does so by allowing multiples
copies of a given data structure to live at the same time, and by
monitoring the data structure accesses to detect grace periods after
which memory reclamation is possible.

liburcu-cds provides efficient data structures based on RCU and
lock-free algorithms. Those structures include hash tables, queues,
stacks, and doubly-linked lists.

Changelog:

2013-06-18 Userspace RCU 0.7.7
        * rculfhash: document destroy context limitation
        * Fix: Use a filled signal mask to disable all signals
        * Document: rculfhash destroy and resize side-effect in 0.7
        * Add "sparc" host cpu to configure.ac
        * Fix: tests/api.h use cpuset.h
        * Fix hurd-i386: move cpuset tests outside of sched_setaffinity
          conditional
        * Fix tests: finer-grained use of CPU_SET, CPU_ZERO and cpu_set_t
        * Test for CPU_SET
        * Fix build on architectures with HAVE_SCHED_GETCPU but without
          HAVE_SYSCONF
        * README: document that Clang 3.0 (based on LLVM 3.0) is supported
        * clang: silence "unused expression result" warning
        * rculfhash: add assertions on node alignment
        * uatomic: style fix

Project website: http://lttng.org/urcu
Download link: http://lttng.org/files/urcu/

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com



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