Re: [PATCH] Self-contained pthread_spinlock_t for RTEMS

[Corinna Vinschen <vinschen at redhat dot com>]

On Nov 24 10:58, Sebastian Huber wrote:
> Turn pthread_spinlock_t into a self-contained object.  On uni-processor
> configurations, interrupts are disabled in the lock/trylock operations
> and the previous interrupt status is restored in the corresponding
> unlock operations.  On SMP configurations, a ticket lock is a acquired
> and released in addition.
> 
> See also:
> 
> https://devel.rtems.org/ticket/2674
> 
> This implementation is simple and efficient.  However, this test case of
> the Linux Test Project would fail due to call of printf() and sleep()
> during spin lock ownership:
> 
> https://github.com/linux-test-project/ltp/blob/master/testcases/open_posix_testsuite/conformance/interfaces/pthread_spin_lock/1-2.c

Patch applied.


Thanks,
Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
Red Hat

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