cpython/Lib/dos-8x3/test_fcn.py

37 lines
1.0 KiB
Python
Raw Normal View History

1997-04-02 06:13:34 +00:00
#! /usr/bin/env python
"""Test program for the fcntl C module.
Roger E. Masse
"""
import struct
import fcntl
import FCNTL
1997-12-09 16:56:41 +00:00
import os, sys
1997-04-02 06:13:34 +00:00
from test_support import verbose
filename = '/tmp/delete-me'
# the example from the library docs
f = open(filename,'w')
1997-05-22 20:48:03 +00:00
rv = fcntl.fcntl(f.fileno(), FCNTL.F_SETFL, os.O_NONBLOCK)
1997-04-02 06:13:34 +00:00
if verbose:
1997-05-22 20:48:03 +00:00
print 'Status from fnctl with O_NONBLOCK: ', rv
1997-04-02 06:13:34 +00:00
1999-04-08 20:27:54 +00:00
if sys.platform in ('netbsd1',
2000-09-01 19:25:51 +00:00
'freebsd2', 'freebsd3', 'freebsd4', 'freebsd5',
2000-05-08 17:31:04 +00:00
'bsdos2', 'bsdos3', 'bsdos4',
'openbsd', 'openbsd2'):
1997-12-09 16:56:41 +00:00
lockdata = struct.pack('lxxxxlxxxxlhh', 0, 0, 0, FCNTL.F_WRLCK, 0)
elif sys.platform in ['aix3', 'aix4']:
lockdata = struct.pack('hhlllii', FCNTL.F_WRLCK, 0, 0, 0, 0, 0, 0)
else:
lockdata = struct.pack('hhllhh', FCNTL.F_WRLCK, 0, 0, 0, 0, 0)
1997-04-02 06:13:34 +00:00
if verbose:
1997-05-22 20:48:03 +00:00
print 'struct.pack: ', `lockdata`
1997-04-02 06:13:34 +00:00
rv = fcntl.fcntl(f.fileno(), FCNTL.F_SETLKW, lockdata)
if verbose:
1997-05-22 20:48:03 +00:00
print 'String from fcntl with F_SETLKW: ', `rv`
1997-04-02 06:13:34 +00:00
f.close()
os.unlink(filename)