From: "mame (Yusuke Endoh)" Date: 2022-05-20T00:27:17+00:00 Subject: [ruby-core:108629] [Ruby master Feature#18774] Add Queue#pop(timeout:) Issue #18774 has been updated by mame (Yusuke Endoh). matz (Yukihiro Matsumoto) wrote in #note-10: > You may consider adding timeout_value keyword argument. But it should be a different issue. A supplimental explanation. We discussed this ticket at the dev meeting, and someone suggested yet another keyword argument to specify a return value when time limit exceeded. ``` Queue#pop(timeout: sec, timeout_value: :TimeOut) #=> :TimeOut instead of nil at timeout ``` @matz said returning nil would be good enough in many cases, and wanted to discuss it in another ticket if anyone really wants it. ---------------------------------------- Feature #18774: Add Queue#pop(timeout:) https://bugs.ruby-lang.org/issues/18774#change-97677 * Author: Eregon (Benoit Daloze) * Status: Open * Priority: Normal ---------------------------------------- This has been mentioned many times but somehow was never added. It is useful for many different use cases: * Implementing Timeout#timeout without needing to create a Thread per call which is very inefficient (especially when the timeout is not hit): https://github.com/ruby/timeout/pull/14#issuecomment-1123380880 * @jeremyevans0 I would love a Queue#pop :timeout argument. It would simplify the mutex/condition variable approach currently used for Sequel's connection pool. * @byroot Same. I wanted it so many times * https://bugs.ruby-lang.org/issues/17363 * https://spin.atomicobject.com/2014/07/07/ruby-queue-pop-timeout/ + https://spin.atomicobject.com/2017/06/28/queue-pop-with-timeout-fixed/ * More in my email searches but this seems already plenty I think it should be a keyword argument for clarity, and so there is no confusion with the existing optional argument `non_block=false`. -- https://bugs.ruby-lang.org/ Unsubscribe: