[issue815646] thread unsafe file objects cause crash

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

This is a preliminary patch which shows how things might be done better.
It only addresses close(), seek() and dealloc right now. However, as
mentioned in test_close_open_seek, if I raise the number of workers, I
get crashes (while test_close_open is fine). Perhaps fseek() in the
glibc is thread unsafe when operating on the same file descriptor?

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keywords: +patch
Added file: http://bugs.python.org/file9883/filethread1.patch

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