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SubjectRe: [ltt-dev] [RELEASE] Userspace RCU 0.6.0
On Mon, Jun 13, 2011 at 10:06:09AM +0800, Cui, Dexuan wrote:
> Mathieu Desnoyers wrote:
> > 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.
> >
> > Changelog:
> >
> > - Added call_rcu() support, graciously contributed by Paul E.
> > McKenney.
> > - Added urcu/cds.h and merged all "Concurrent Data Containers" (CDS)
> > into a single .so: liburcu-cds.so to have a single header/shared
> > object holding all concurrency-aware data containers. It provides
> > support for RCU lists, queues and stacks at the moment.
> > - liburcu 0.6.0 now allows linking a single application with multiple
> > flavors of RCU. This required a library API change which is
> > incompatible with older 0.5.x liburcu. The .so version number
> > is therefore bumped from 0 to 1 (e.g. liburcu.so.1).
> > - Added "atfork" handling API, documented in README. Only useful for
> > processes using fork() without following exec().
> > - Renaming the following files, keeping the old files (producing a
> > compiler warning):
> > urcu/uatomic_arch.h -> urcu/uatomic.h
> > urcu/urcu-futex.h -> urcu/futex.h
> > urcu/urcu_ref.h -> urcu/ref.h
> >
> > Project website: http://lttng.org/urcu
> > Download link: http://www.lttng.org/files/urcu/
>
> Hi Mathieu,
> The release can't build in my side:
>
> $ tar -jxf userspace-rcu-0.6.0.tar.bz2 && cd userspace-rcu-0.6.0 && ./configure && make
>
> make all-recursive
> make[1]: Entering directory `/home/dcui/userspace-rcu-0.6.0'
> Making all in .
> make[2]: Entering directory `/home/dcui/userspace-rcu-0.6.0'
> CC wfqueue.lo
> CC wfstack.lo
> CC rculfqueue.lo
> CC rculfstack.lo
> CCLD liburcu-cds.la
> CC urcu.lo
> urcu.c:438:32: error: urcu-call-rcu-impl.h: No such file or directory
> urcu.c:439:29: error: urcu-defer-impl.h: No such file or directory
> make[2]: *** [urcu.lo] Error 1
> make[2]: Leaving directory `/home/dcui/userspace-rcu-0.6.0'
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory `/home/dcui/userspace-rcu-0.6.0'
> make: *** [all] Error 2
>
> Can you please have a look?

I get the same thing from the tarball. But the git tree works just fine,
so my guess is that the tarball creation left out a couple of files.

Thanx, Paul


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