Hi, The original bug appears to still be there. For example this will hang: (defun test () (let ((object (cons nil nil))) (threads:synchronized-on object (threads:object-wait object 0.000000001)))) 1.4.0-dev-svn-14653 Java_HotSpot(TM)_Server_VM-Oracle_Corporation-1.7.0_04-b20 i386-Linux-3.2.0-24-generic-pae --lmj On Sun, Mar 2, 2014 at 5:08 AM, Mark Evenson <evenson@panix.com> wrote:
On 2/3/14, 19:14, James M. Lawrence wrote: [...]
What would you consider the best option when the timeout value becomes too close to 0? I see 2:
1. Don't wait. 2. Wait at least 1 ns
In the context of bordeaux-threads, I think it would be unexpected if condition-wait did no waiting at all, even if given a timeout that will surely be exceeded. In the limit of the timeout approaching zero, I would say that condition-wait converges to pthread_yield rather than a noop.
[r14362][] fixes CL:SLEEP for intervals less than a millisecond.
For intervals less than or equal to a nanosecond, including an interval of zero, the current thread yields execution to other threads at James' suggestion.
[r14362]: http://abcl.org/trac/changeset/14632
-- "A screaming comes across the sky. It has happened before, but there is nothing to compare to it now."