December 2010 - bordeaux-threads-devel - mailman3.common-lisp.net

[Bordeaux-threads-devel] binding output stream in thread for slime use
by Antony 30 Dec '10

30 Dec '10

Hi I am trying to use bordeaux threads. Trying to figure out how to make output from a thread function appear in slime instead of the lisp terminal. The lisp I am using is Clozure Common Lisp Version 1.6-r14468M (WindowsX8664) I beleive I have the latest bordeaux threads Following is my test code. I hope the intentions are clear. What am I doing wrong or missing? Code follows Thanks, -Antony (asdf:oos 'asdf:load-op :bordeaux-threads) (format t "~%appearing in slime") (defun thread-test () (format t "~%appearing in lisp terminal: ~A" (bordeaux-threads:thread-name (bordeaux-threads:current-thread)))) (let ((bindings '((*standard-input* . *standard-input*) (*standard-output* . *standard-output*) (*query-io* . *query-io*) (*trace-output* . *trace-output*)))) ;;is this correct? (dolist (name '("foo" "bar")) (bordeaux-threads:make-thread #'thread-test :name name :initial-bindings bindings)))

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[Bordeaux-threads-devel] patch for thread-wait
by Faré 14 Dec '10

14 Dec '10

Dear bordeaux-threads developers, I have a patch that adds bt support for thread-wait and thread-wait-with-timeout, modelled after the process-wait and process-wait-with-timeout functions sported by several Lisp APIs. This API should be considered a legacy compatibility API, as these operations may have made sense long ago on timesharing monoprocessors, but are necessarily expensive on multiprocessors. Nevertheless, we had a use for them at ITA, and I threw together this compatibility support, until we get our code cleaned up. Please consider this patch for inclusion, though it has only been lightly tested. PS: I also have a patch to add XCVB support to bordeaux-threads, though you might not be interested. [ François-René ÐVB Rideau | Reflection&Cybernethics | http://fare.tunes.org ] As the Chinese say, 1001 words is worth more than a picture. — John McCarthy

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[Bordeaux-threads-devel] Patch for ABCL against BORDEAUX-THREADS-0.8.0
by Mark Evenson 04 Dec '10

04 Dec '10

ABCL's multithreading symbols have moved to THREADS package (this was deprecated with abcl-0.18 and removed with abcl-0.22). Implement CONDITION-WAIT and CONDITION-NOTIFY for ABCL. Use 10ms pause for ABCL's THREAD-YIELD. -- "A screaming comes across the sky. It has happened before, but there is nothing to compare to it now."

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[Bordeaux-threads-devel] Clarifying some behavior in the documentation
by Vladimir Sedach 01 Dec '10

01 Dec '10

Hello, I've encountered two cases that affect behavior of code but aren't clarified in the documentation: 1. At least one implementation (SBCL) requires that the lock on which condition-wait is called is to be held by the thread that calls condition-notify on the corresponding CV. This should be mentioned in the documentation as a requirement. 2. It is undefined what happens when release-lock is called inside a with-lock-held on the same lock. SBCL and Clozure appear to handle this "properly," although I think the documented behavior should be the same as with regular release-lock ("It is an error to call this unless the lock has previously been acquired (and not released) by the same thread," that is, it should be an error to call release-lock inside a with-lock-held). Thank you, Vladimir

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