Messages in this thread | | | Date | Wed, 9 Jan 2013 13:46:17 -0500 | From | Mathieu Desnoyers <> | Subject | [RELEASE] Userspace RCU 0.7.6 |
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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.
This is a bugfix release, mainly fixing handling of processes using call_rcu, then fork() without following exec(), and then continuing use of synchronize_rcu() or call_rcu() in the child process. A hang in synchronize_rcu() in the child could occur, which is fixed by this release.
Changelog: 2013-01-09 Userspace RCU 0.7.6 * Discourage use of pthread_atfork() for call_rcu handlers * Fix call_rcu fork handling * test: fork handling * Fix TLS detection: test with linker, add --disable-compiler-tls * Cleanup: cast pthread_self() return value to unsigned long * Fallback mechanism not working on platform where TLS is unsupported
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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