Shannon Skipper 3896e2aa12 Fix thread spawning edge case. ... Rapidly adding work to the ThreadPool can result in many jobs making it onto `@todo` before one of the jobs gets the mutex lock to decrement `@waiting`. So `@waiting == 0` isn't true and no thread is spawned even though there's work piling up, e.g.: ```ruby require 'puma/thread_pool' pool = Puma::ThreadPool.new(1, 3) { sleep 2 } 3.times { pool << 1 } sleep 1 pool.spawned #=> 1 # When 3 is expected ``` Checking if `@waiting < @todo.size` shows that there's more work to do than threads waiting even if `@waiting` hasn't been decremented to `0` and also covers the base case where `@waiting == 0` and `@tudo.size == 1`. An alternate option would be just adding the new check without removing the old one, something like `(@waiting == 0 or @waiting < @todo.size)`, but I don't think it's necessary unless for some kind of performance reason.		2014-08-19 22:36:34 -07:00
..
puma	Fix thread spawning edge case.	2014-08-19 22:36:34 -07:00
rack/handler	Remove unnecessary thread pool size conversions	2013-07-16 20:08:30 -04:00
puma.rb	Remove non-required dirs from $LOAD_PATH	2012-01-08 16:48:51 -03:00