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32 lines
659 B
Python
32 lines
659 B
Python
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#! /usr/bin/env python
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"""Test program for the fcntl C module.
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Roger E. Masse
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"""
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import struct
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import fcntl
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import FCNTL
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import os
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verbose = 0
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if __name__ == '__main__':
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verbose = 1
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filename = '/tmp/delete-me'
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# the example from the library docs
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f = open(filename,'w')
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rv = fcntl.fcntl(f.fileno(), FCNTL.O_NDELAY, 1)
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if verbose:
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print 'Status from fnctl with O_NDELAY: ', rv
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lockdata = struct.pack('hhllhh', FCNTL.F_WRLCK, 0, 0, 0, 0, 0)
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if verbose:
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print 'struct.pack: ', lockdata
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rv = fcntl.fcntl(f.fileno(), FCNTL.F_SETLKW, lockdata)
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if verbose:
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print 'String from fcntl with F_SETLKW: ', rv
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f.close()
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os.unlink(filename)
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