def test_pidfile_lock_2(self):
lock_name = get_temp_file_name("test-2.pid")
self.assertTrue(acquire_pidfile_lock(lock_name))
result = examine_pidfile_lock(lock_name)
self.assertFalse(result is None)
(current_pid, is_running) = result
self.assertEqual(is_running, True)
self.assertEqual(current_pid, os.getpid())
release_pidfile_lock(lock_name)
result = examine_pidfile_lock(lock_name)
self.assertEqual(result, None)
def check_pidfile(path, unlink=True):
"""
*Deprecated* as of netsa-python v1.4. Use
:func:`netsa.files.acquire_pidfile_lock` instead.
Attempts to create a locking PID file at the requested pathname
*path*. If the file does not exist, creates it with the current
process ID, and sets up an :mod:`atexit` process to remove it. If
the file does exist but refers to a no-longer-existing process,
replaces it and does the above. If the file does exist and refers
to a running process, does nothing.
Returns ``True`` if the PID file was created or replaced (which
means we should continue processing), or ``False`` if the PID file
was left in place (which means someone else is processing and we
should exit.)
"""
warnings.warn("netsa.tools.service.check_pidfile is deprecated, "
"please see netsa.files.acquire_pidfile_lock",
DeprecationWarning)
return acquire_pidfile_lock(path)
