Author Fulvio Esposito
Recipients Fulvio Esposito, gvanrossum, vstinner, yselivanov
Date 2016-04-21.17:34:00
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Calling pause_reading()/resume_reading() on a _ProactorReadPipeTransport will result in an InvalidStateError('Result is not ready.') from a future if no read has been issued yet. The reason is that resume_reading() will schedule _loop_reading() a second time on the event loop. For example, currently aiomysql always fails to connect using a ProactorEventLoop on Windows because it calls pause_reading()/resume_reading() to set TCP_NODELAY on the socket just after connecting and before any read is performed.
Date User Action Args
2016-04-21 17:34:01Fulvio Espositosetrecipients: + Fulvio Esposito, gvanrossum, vstinner, yselivanov
2016-04-21 17:34:01Fulvio Espositosetmessageid: <>
2016-04-21 17:34:00Fulvio Espositolinkissue26819 messages
2016-04-21 17:34:00Fulvio Espositocreate