| #! /usr/bin/env python |
| """Test program for the fcntl C module. |
| Roger E. Masse |
| """ |
| import struct |
| import fcntl |
| import FCNTL |
| import os |
| 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 |
| |
| 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) |