def __init__(self):
self._timer_cancelled_count = 0
self._closed = False
self._ready = collections.deque()
self._scheduled = []
self._default_executor = None
self._internal_fds = 0
# Identifier of the thread running the event loop, or None if the
# event loop is not running
self._thread_id = None
self._clock_resolution = time.get_clock_info('monotonic').resolution
self._exception_handler = None
self._debug = (not sys.flags.ignore_environment
and bool(os.environ.get('PYTHONASYNCIODEBUG')))
# In debug mode, if the execution of a callback or a step of a task
# exceed this duration in seconds, the slow callback/task is logged.
self.slow_callback_duration = 0.1
self._current_handle = None
python类get_clock_info()的实例源码
def test_get_clock_info(self):
clocks = ['clock', 'perf_counter', 'process_time', 'time']
if hasattr(time, 'monotonic'):
clocks.append('monotonic')
for name in clocks:
info = time.get_clock_info(name)
#self.assertIsInstance(info, dict)
self.assertIsInstance(info.implementation, str)
self.assertNotEqual(info.implementation, '')
self.assertIsInstance(info.monotonic, bool)
self.assertIsInstance(info.resolution, float)
# 0.0 < resolution <= 1.0
self.assertGreater(info.resolution, 0.0)
self.assertLessEqual(info.resolution, 1.0)
self.assertIsInstance(info.adjustable, bool)
self.assertRaises(ValueError, time.get_clock_info, 'xxx')
def __init__(self):
self._timer_cancelled_count = 0
self._closed = False
self._stopping = False
self._ready = collections.deque()
self._scheduled = []
self._default_executor = None
self._internal_fds = 0
# Identifier of the thread running the event loop, or None if the
# event loop is not running
self._thread_id = None
self._clock_resolution = time.get_clock_info('monotonic').resolution
self._exception_handler = None
self.set_debug((not sys.flags.ignore_environment
and bool(os.environ.get('PYTHONASYNCIODEBUG'))))
# In debug mode, if the execution of a callback or a step of a task
# exceed this duration in seconds, the slow callback/task is logged.
self.slow_callback_duration = 0.1
self._current_handle = None
self._task_factory = None
self._coroutine_wrapper_set = False
def test_monotonic(self):
# monotonic() should not go backward
times = [time.monotonic() for n in range(100)]
t1 = times[0]
for t2 in times[1:]:
self.assertGreaterEqual(t2, t1, "times=%s" % times)
t1 = t2
# monotonic() includes time elapsed during a sleep
t1 = time.monotonic()
time.sleep(0.5)
t2 = time.monotonic()
dt = t2 - t1
self.assertGreater(t2, t1)
# Issue #20101: On some Windows machines, dt may be slightly low
self.assertTrue(0.45 <= dt <= 1.0, dt)
# monotonic() is a monotonic but non adjustable clock
info = time.get_clock_info('monotonic')
self.assertTrue(info.monotonic)
self.assertFalse(info.adjustable)
def test_monotonic(self):
# monotonic() should not go backward
times = [time.monotonic() for n in range(100)]
t1 = times[0]
for t2 in times[1:]:
self.assertGreaterEqual(t2, t1, "times=%s" % times)
t1 = t2
# monotonic() includes time elapsed during a sleep
t1 = time.monotonic()
time.sleep(0.5)
t2 = time.monotonic()
dt = t2 - t1
self.assertGreater(t2, t1)
# Issue #20101: On some Windows machines, dt may be slightly low
self.assertTrue(0.45 <= dt <= 1.0, dt)
# monotonic() is a monotonic but non adjustable clock
info = time.get_clock_info('monotonic')
self.assertTrue(info.monotonic)
self.assertFalse(info.adjustable)
def test_time(self):
time.time()
info = time.get_clock_info('time')
self.assertFalse(info.monotonic)
self.assertTrue(info.adjustable)
def test_clock(self):
time.clock()
info = time.get_clock_info('clock')
self.assertTrue(info.monotonic)
self.assertFalse(info.adjustable)
def test_monotonic(self):
t1 = time.monotonic()
time.sleep(0.5)
t2 = time.monotonic()
dt = t2 - t1
self.assertGreater(t2, t1)
self.assertAlmostEqual(dt, 0.5, delta=0.2)
info = time.get_clock_info('monotonic')
self.assertTrue(info.monotonic)
self.assertFalse(info.adjustable)
def test_process_time(self):
# process_time() should not include time spend during a sleep
start = time.process_time()
time.sleep(0.100)
stop = time.process_time()
# use 20 ms because process_time() has usually a resolution of 15 ms
# on Windows
self.assertLess(stop - start, 0.020)
info = time.get_clock_info('process_time')
self.assertTrue(info.monotonic)
self.assertFalse(info.adjustable)
def __init__(self):
self._timer_cancelled_count = 0
self._closed = False
self._stopping = False
self._ready = collections.deque()
self._scheduled = []
self._default_executor = None
self._internal_fds = 0
# Identifier of the thread running the event loop, or None if the
# event loop is not running
self._thread_id = None
self._clock_resolution = time.get_clock_info('monotonic').resolution
self._exception_handler = None
self.set_debug((not sys.flags.ignore_environment
and bool(os.environ.get('PYTHONASYNCIODEBUG'))))
# In debug mode, if the execution of a callback or a step of a task
# exceed this duration in seconds, the slow callback/task is logged.
self.slow_callback_duration = 0.1
self._current_handle = None
self._task_factory = None
self._coroutine_wrapper_set = False
if hasattr(sys, 'get_asyncgen_hooks'):
# Python >= 3.6
# A weak set of all asynchronous generators that are
# being iterated by the loop.
self._asyncgens = weakref.WeakSet()
else:
self._asyncgens = None
# Set to True when `loop.shutdown_asyncgens` is called.
self._asyncgens_shutdown_called = False
def test_time(self):
time.time()
info = time.get_clock_info('time')
self.assertFalse(info.monotonic)
self.assertTrue(info.adjustable)
def test_clock(self):
time.clock()
info = time.get_clock_info('clock')
self.assertTrue(info.monotonic)
self.assertFalse(info.adjustable)
def test_process_time(self):
# process_time() should not include time spend during a sleep
start = time.process_time()
time.sleep(0.100)
stop = time.process_time()
# use 20 ms because process_time() has usually a resolution of 15 ms
# on Windows
self.assertLess(stop - start, 0.020)
info = time.get_clock_info('process_time')
self.assertTrue(info.monotonic)
self.assertFalse(info.adjustable)
def __init__(self):
self._closed = False
self._ready = collections.deque()
self._scheduled = []
self._default_executor = None
self._internal_fds = 0
self._running = False
self._clock_resolution = time.get_clock_info('monotonic').resolution
self._exception_handler = None
self._debug = (not sys.flags.ignore_environment
and bool(os.environ.get('PYTHONASYNCIODEBUG')))
# In debug mode, if the execution of a callback or a step of a task
# exceed this duration in seconds, the slow callback/task is logged.
self.slow_callback_duration = 0.1
def test_time(self):
time.time()
info = time.get_clock_info('time')
self.assertFalse(info.monotonic)
self.assertTrue(info.adjustable)
def test_clock(self):
time.clock()
info = time.get_clock_info('clock')
self.assertTrue(info.monotonic)
self.assertFalse(info.adjustable)
def test_process_time(self):
# process_time() should not include time spend during a sleep
start = time.process_time()
time.sleep(0.100)
stop = time.process_time()
# use 20 ms because process_time() has usually a resolution of 15 ms
# on Windows
self.assertLess(stop - start, 0.020)
info = time.get_clock_info('process_time')
self.assertTrue(info.monotonic)
self.assertFalse(info.adjustable)
