Hey Robert, I can't reproduce the problem with the newest ECL code (from git develop branch) on my host. lparallel works fine and this snippet does terminate after timeout.
CL-USER> (ext:lisp-implementation-vcs-id) "ba6e6ddde780c097918673f16c7aba05f354d022" Best regards, Daniel W dniu nie, 02.09.2018 o godzinie 12∶27 +0200, użytkownik Robert Larice napisał: > I tried to understand where the issue is located. > > In :lparallel file lparallel-20160825-git/src/thread-util.lisp > there is a stanza which tries to check for the implementation > of the :timeout capability > > > ;;; Check for timeout parameter in bordeaux-threads:condition-wait. > > (eval-when (:compile-toplevel :execute) > > ;; use special to defeat compiler analysis > > (defparameter *condition-wait* #'bordeaux-threads:condition-wait) > > > > (flet ((has-condition-wait-timeout-p () > > ... > > I tried to minimise this to a small standalone piece > which can be used to examine the issue: > > (ql:quickload :bordeaux-threads) > > (let ((lock (bordeaux-threads:make-lock)) > (cvar (bordeaux-threads:make-condition-variable))) > (bordeaux-threads:with-lock-held (lock) > (bordeaux-threads:condition-wait cvar lock :timeout 0.001))) > > I think the :timeout doesn't seem to work properly and thus the > condition-wait waits forever. > > Can you help me to understand this better and to work around it ? > > Regards > Robert Larice > > > Robert Larice <robert.lar...@t-online.de> writes: > > > Hello, > > > > can you provide me some hints for the following problem ? > > > > I've compiled ecl from git on a debian stretch machine. > > Then I've tried to compile the "qt" example, > > which did hang when loading "lparallel" > > So I started "ecl" from a shell, > > and did execute > > (ql:quickload :lparallel) > > which presents me: > > > To load "lparallel": > > > Load 1 ASDF system: > > > lparallel > > > ; Loading "lparallel" > > then the process fell silent. > > "top" doesn't show "ecl" to consume cpu cycles. > > Its waiting for something and doesn't proceed. > > > > Regards, > > Robert Larice > >
