本文整理汇总了Python中time.clock_settime函数的典型用法代码示例。如果您正苦于以下问题：Python clock_settime函数的具体用法？Python clock_settime怎么用？Python clock_settime使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了clock_settime函数的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_clock_settime
def test_clock_settime(self):
t = time.clock_gettime(time.CLOCK_REALTIME)
try:
time.clock_settime(time.CLOCK_REALTIME, t)
except PermissionError:
pass
if hasattr(time, "CLOCK_MONOTONIC"):
self.assertRaises(OSError, time.clock_settime, time.CLOCK_MONOTONIC, 0)示例2: test_monotonic_settime
def test_monotonic_settime(self):
t1 = time.monotonic()
realtime = time.clock_gettime(time.CLOCK_REALTIME)
# jump backward with an offset of 1 hour
try:
time.clock_settime(time.CLOCK_REALTIME, realtime - 3600)
except PermissionError as err:
self.skipTest(err)
t2 = time.monotonic()
time.clock_settime(time.CLOCK_REALTIME, realtime)
# monotonic must not be affected by system clock updates
self.assertGreaterEqual(t2, t1)示例3: main
def main(argv):
"""
Entry point for ntpclient.py.
Arguments:
argv: command line arguments
"""
res = None
quiet = False
args = set(argv)
if {'-q', '--quiet'}.intersection(args):
quiet = True
if '-s' in argv:
server = argv[argv.index('-s')+1]
elif '--server' in argv:
server = argv[argv.index('--server')+1]
elif 'NTPSERVER' in os.environ:
server = os.environ['NTPSERVER']
else:
server = 'pool.ntp.org'
if {'-h', '--help'}.intersection(args):
print('Usage: ntpclient [-h|--help] [-q|--quiet] [-s|--server timeserver]')
print(f'Using time server {server}.')
sys.exit(0)
t1 = time.clock_gettime(time.CLOCK_REALTIME)
ntptime = get_ntp_time(server)
t4 = time.clock_gettime(time.CLOCK_REALTIME)
# It is not guaranteed that the NTP time is *exactly* in the middle of both
# local times. But it is a reasonable simplification.
roundtrip = round(t4 - t1, 4)
localtime = (t1 + t4) / 2
diff = localtime - ntptime
if os.geteuid() == 0:
time.clock_settime(time.CLOCK_REALTIME, ntptime)
res = 'Time set to NTP time.'
localtime = datetime.fromtimestamp(localtime)
ntptime = datetime.fromtimestamp(ntptime)
if not quiet:
print('Using server {}.'.format(server))
print('NTP call took approximately', roundtrip, 's.')
print('Local time value:', localtime.strftime('%a %b %d %H:%M:%S.%f %Y.'))
print('NTP time value:', ntptime.strftime('%a %b %d %H:%M:%S.%f %Y.'),
'±', roundtrip/2, 's.')
print('Local time - ntp time: {:.6f} s.'.format(diff))
if res:
print(res)