def test_is_running(self):
# confirm we're running
self.assertTrue(process.is_running(os.getpid()))
# fork a new process, SIGSTOP it, and confirm it's not running
pid = os.fork()
if pid == 0:
os.kill(os.getpid(), signal.SIGSTOP)
else:
# wait for signal to propagate
time.sleep(1)
# The return value is reliable only on Linux, on other systems just
# make sure ProcessNotFound isn't thrown.
if sys.platform.startswith('linux'):
self.assertFalse(process.is_running(pid))
else:
process.is_running(pid)
os.kill(pid, signal.SIGKILL)
with mock.patch('snakeoil.process.os.kill') as kill:
kill.side_effect = OSError(3, 'No such process')
self.assertRaises(process.ProcessNotFound, process.is_running,
1234)
kill.side_effect = OSError(4, 'Interrupted system call')
self.assertRaises(OSError, process.is_running, 1234)
with mock.patch('snakeoil.process.open') as open:
open.side_effect = OSError(2, 'No such file or directory')
self.assertRaises(process.ProcessNotFound, process.is_running,
os.getpid())
open.side_effect = OSError(5, 'Input/output error')
self.assertRaises(OSError, process.is_running, os.getpid())
def test_is_running(self):
# confirm we're running
self.assertTrue(process.is_running(os.getpid()))
# fork a new process, SIGSTOP it, and confirm it's not running
pid = os.fork()
if pid == 0:
os.kill(os.getpid(), signal.SIGSTOP)
else:
# wait for signal to propagate
time.sleep(1)
self.assertFalse(process.is_running(pid))
os.kill(pid, signal.SIGKILL)
with mock.patch('snakeoil.process.os.kill') as kill:
kill.side_effect = OSError(3, 'No such process')
self.assertRaises(
process.ProcessNotFound, process.is_running, 1234)
kill.side_effect = OSError(4, 'Interrupted system call')
self.assertRaises(
OSError, process.is_running, 1234)
with mock.patch('snakeoil.process.open') as open:
open.side_effect = OSError(2, 'No such file or directory')
self.assertRaises(
process.ProcessNotFound, process.is_running, os.getpid())
open.side_effect = OSError(5, 'Input/output error')
self.assertRaises(
OSError, process.is_running, os.getpid())
def test_is_running(self):
# confirm we're running
self.assertTrue(process.is_running(os.getpid()))
# fork a new process, SIGSTOP it, and confirm it's not running
pid = os.fork()
if pid == 0:
os.kill(os.getpid(), signal.SIGSTOP)
else:
# wait for signal to propagate
time.sleep(1)
# The return value is reliable only on Linux, on other systems just
# make sure ProcessNotFound isn't thrown.
if sys.platform.startswith('linux'):
self.assertFalse(process.is_running(pid))
else:
process.is_running(pid)
os.kill(pid, signal.SIGKILL)
with mock.patch('snakeoil.process.os.kill') as kill:
kill.side_effect = OSError(3, 'No such process')
self.assertRaises(
process.ProcessNotFound, process.is_running, 1234)
kill.side_effect = OSError(4, 'Interrupted system call')
self.assertRaises(
OSError, process.is_running, 1234)
with mock.patch('snakeoil.process.open') as open:
open.side_effect = OSError(2, 'No such file or directory')
self.assertRaises(
process.ProcessNotFound, process.is_running, os.getpid())
open.side_effect = OSError(5, 'Input/output error')
self.assertRaises(
OSError, process.is_running, os.getpid())
def is_alive(self):
"""Return whether the processor is alive."""
try:
if self.pid is None:
return False
try:
if process.is_running(self.pid):
self.write("alive", disable_runtime_exceptions=True)
if self.expect("yep!", timeout=10):
return True
except process.ProcessNotFound:
# pid doesn't exist
self.pid = None
return False
except (AttributeError, KeyboardInterrupt):
# thrown only if failure occurred instantiation.
return False
