New release: 0.2.20

[Samy Al Bahra]

I am pleased to announce release 0.2.20 of Concurrency Kit. This
release adds support for Intel TSX extensions in the form of the
ck_pr_rtm interface, support for lock elision, a ck_hs_move operation
and includes support for reader-writer cohort locks.

Thanks to Brendon Scheinman <bscheinman@gm...> for his contribution of
a generalized read-write cohort implementation. These locks are
designed for NUMA-awareness. Reader-preference, writer preference and
neutral algorithms have been added. Please see the documentation for
additional information.

ck_sequence interface has been slightly changed. More specifically,
ck_sequence_read_retry has been modified to take an unsigned int
rather than uint32_t for portability reasons.

is_locked functionality has been added to all spinlocks and ck_rwlock.

Thanks to Andi Kleen for insightful feedback on lock elision.

Download:
http://concurrencykit.org/releases/ck-0.2.20.tar.gz
http://concurrencykit.org/releases/ck-0.2.20.zip
http://concurrencykit.org/releases/ck-0.2.20.spec

Regards.
--
Samy Al Bahra [http://repnop.org]

[John Peacock]

I just noticed that src/ck_hp.c is missing from the 0.2.20 tarball (I didn't check the zip file, but I assume it is missing there too).  This causes the `make regressions` target fails to complete although `make install` works fine.

John

[John Peacock]

Hrrrrmmmm, ignore me; something was going wrong with our build system...

John

[Samy Bahra]

Phew ;-) 

Sent from my iPhone

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[Devon H. O'Dell]

Dat atlassian.

2013/8/23 Samy Bahra <sba...@appnexus.com>:

[John Peacock]

Nah, I'm just an idiot:

# Clobber the hazard pointers code to guarantee that we can't accidentally
# use it (it has some problematic Intellectual Property encumbrances)
: > src/ck_hp.c

John