mirror of
https://github.com/python/cpython.git
synced 2024-12-01 11:15:56 +01:00
34 lines
925 B
Python
34 lines
925 B
Python
#! /usr/bin/env python
|
|
"""Test program for the fcntl C module.
|
|
Roger E. Masse
|
|
"""
|
|
import struct
|
|
import fcntl
|
|
import FCNTL
|
|
import os, sys
|
|
from test_support import verbose
|
|
|
|
filename = '/tmp/delete-me'
|
|
|
|
# the example from the library docs
|
|
f = open(filename,'w')
|
|
rv = fcntl.fcntl(f.fileno(), FCNTL.F_SETFL, os.O_NONBLOCK)
|
|
if verbose:
|
|
print 'Status from fnctl with O_NONBLOCK: ', rv
|
|
|
|
if sys.platform in ('netbsd1', 'freebsd2', 'freebsd3', 'bsdos2', 'bsdos3'):
|
|
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)
|
|
if verbose:
|
|
print 'struct.pack: ', `lockdata`
|
|
|
|
rv = fcntl.fcntl(f.fileno(), FCNTL.F_SETLKW, lockdata)
|
|
if verbose:
|
|
print 'String from fcntl with F_SETLKW: ', `rv`
|
|
|
|
f.close()
|
|
os.unlink(filename)
|