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Author vstinner
Recipients benjamin.peterson, exarkun, gregory.p.smith, jcea, loewis, marcin.bachry, neologix, pitrou, python-dev, schmichael, skrah, spiv, tseaver, vstinner
Date 2011-05-25.00:42:09
SpamBayes Score 6.54887e-06
Marked as misclassified No
Message-id <>
> There's a race. If a signal is received while is_tripped is set, 
> the signal number won't be written to the wakeup FD.

Oh, nice catch. The "bug" is not new, Python behaves like that since Python 3.1. But in Python < 3.3, it doesn't mater because I don't think that wakeup was used to watch more than one signal. One trigger "something happened" was enough.

The wakeup fd now contains the number of each signal, and so the behaviour has to change. I applied your patch and I added a test.
Date User Action Args
2011-05-25 00:42:10vstinnersetrecipients: + vstinner, loewis, gregory.p.smith, jcea, spiv, exarkun, tseaver, pitrou, benjamin.peterson, marcin.bachry, schmichael, skrah, neologix, python-dev
2011-05-25 00:42:10vstinnersetmessageid: <>
2011-05-25 00:42:10vstinnerlinkissue8407 messages
2011-05-25 00:42:09vstinnercreate