Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_fcntl.py @ 5817:48b94de85bf3 legacy-trunk

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Extensive changes by AMK.
author Guido van Rossum <guido@python.org>
date Thu, 17 Jul 1997 16:29:42 +0000
parents 595a5fe140d4
children 39b413ac2cc9
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1de96c572b02 Added a test script for the fcntl C module.
Roger E. Masse <rmasse@newcnri.cnri.reston.va.us>
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1 #! /usr/bin/env python
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2 """Test program for the fcntl C module.
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3 Roger E. Masse
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4 """
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5 import struct
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6 import fcntl
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7 import FCNTL
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8 import os
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9ae3cccfa7cd Many scripts, but small changes. Update the way the scripts obtain the
Roger E. Masse <rmasse@newcnri.cnri.reston.va.us>
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9 from test_support import verbose
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10
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11 filename = '/tmp/delete-me'
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12
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13 # the example from the library docs
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14 f = open(filename,'w')
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595a5fe140d4 Finally found a wat to set a file nonblocking that works on Irix,
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15 rv = fcntl.fcntl(f.fileno(), FCNTL.F_SETFL, os.O_NONBLOCK)
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16 if verbose:
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17 print 'Status from fnctl with O_NONBLOCK: ', rv
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18
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19 lockdata = struct.pack('hhllhh', FCNTL.F_WRLCK, 0, 0, 0, 0, 0)
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20 if verbose:
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13052dc2d5f6 Fix the NDELAY test; avoid outputting binary garbage.
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21 print 'struct.pack: ', `lockdata`
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22
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23 rv = fcntl.fcntl(f.fileno(), FCNTL.F_SETLKW, lockdata)
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24 if verbose:
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25 print 'String from fcntl with F_SETLKW: ', `rv`
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26
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27 f.close()
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28 os.unlink(filename)