launchpad-reviewers team mailing list archive

[John A Meinel <john@xxxxxxxxxxxxxxxxx>]

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On 2/16/2011 4:28 PM, Robert Collins wrote:
> What about using dup2 to duplicate the fd, make one copy nonblocking
> and use that until we're up and running?
> 

The issue is we want non-blocking in the 'os.open()' call, until
everything is open, then we want to reset it to blocking.

You can use tricks with fcntl.fcntl(... F_SETFD) according to the man
pages. But testing showed it doesn't actually set the file back to
blocking mode.

I would expect something similar from dup2.

John
=:->

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