def os_uptime(self):
"""Lazy evaluation of the server uptime."""
# Get the OS uptime. Because this is highly operating system dependent, several
# different strategies may have to be tried:
os_uptime_secs = None
try:
# For Linux:
os_uptime_secs = float(open("/proc/uptime").read().split()[0])
except (IOError, KeyError):
try:
# For MacOs:
from Quartz.QuartzCore import CACurrentMediaTime
os_uptime_secs = CACurrentMediaTime()
except ImportError:
try:
# for FreeBSD
import ctypes
from ctypes.util import find_library
libc = ctypes.CDLL(find_library('c'))
size = ctypes.c_size_t()
buf = ctypes.c_int()
size.value = ctypes.sizeof(buf)
libc.sysctlbyname("kern.boottime", ctypes.byref(buf),
ctypes.byref(size), None, 0)
os_uptime_secs = time.time() - float(buf.value)
except (AttributeError, IOError, NameError):
pass
return weewx.units.ValueHelper(value_t=(os_uptime_secs, "second",
"group_deltatime"),
formatter=self.formatter,
converter=self.converter)
def os_uptime(self):
"""Lazy evaluation of the server uptime."""
# Get the OS uptime. Because this is highly operating system dependent, several
# different strategies may have to be tried:
os_uptime_secs = None
try:
# For Linux:
os_uptime_secs = float(open("/proc/uptime").read().split()[0])
except (IOError, KeyError):
try:
# For MacOs:
os_uptime_secs = CACurrentMediaTime()
except NameError:
pass
return weewx.units.ValueHelper(value_t=(os_uptime_secs, "second", "group_deltatime"),
formatter=self.formatter,
converter=self.converter)
def os_uptime(self):
"""Lazy evaluation of the server uptime."""
# Get the OS uptime. Because this is highly operating system dependent, several
# different strategies may have to be tried:
os_uptime_secs = None
try:
# For Linux:
os_uptime_secs = float(open("/proc/uptime").read().split()[0])
except (IOError, KeyError):
try:
# For MacOs:
from Quartz.QuartzCore import CACurrentMediaTime
os_uptime_secs = CACurrentMediaTime()
except ImportError:
try:
# for FreeBSD
import ctypes
from ctypes.util import find_library
libc = ctypes.CDLL(find_library('c'))
size = ctypes.c_size_t()
buf = ctypes.c_int()
size.value = ctypes.sizeof(buf)
libc.sysctlbyname("kern.boottime", ctypes.byref(buf), ctypes.byref(size), None, 0)
os_uptime_secs = time.time() - float(buf.value)
except (AttributeError, IOError, NameError):
try:
# For OpenBSD. See issue #428.
import subprocess
from datetime import datetime
cmd = ['sysctl', 'kern.boottime']
proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
o, e = proc.communicate()
time_t = o.decode('ascii').split()
time_as_string = time_t[1] + " " + time_t[2] + " " + time_t[4][:4] + " " + time_t[3]
os_time = datetime.strptime(time_as_string, "%b %d %Y %H:%M:%S")
epoch_time = (os_time - datetime(1970, 1, 1)).total_seconds()
os_uptime_secs = time.time() - epoch_time
except:
pass
return weewx.units.ValueHelper(value_t=(os_uptime_secs, "second", "group_deltatime"),
formatter=self.formatter,
converter=self.converter)
def _os_uptime():
""" Get the OS uptime. Because this is highly operating system dependent, several different
strategies may have to be tried:"""
try:
# For Python 3.7 and later, most systems
return time.clock_gettime(time.CLOCK_UPTIME)
except AttributeError:
pass
try:
# For Python 3.3 and later, most systems
return time.clock_gettime(time.CLOCK_MONOTONIC)
except AttributeError:
pass
try:
# For Linux, Python 2 and 3:
return float(open("/proc/uptime").read().split()[0])
except (IOError, KeyError, OSError):
pass
try:
# For MacOS, Python 2:
from Quartz.QuartzCore import CACurrentMediaTime
return CACurrentMediaTime()
except ImportError:
pass
try:
# for FreeBSD, Python 2
import ctypes
from ctypes.util import find_library
libc = ctypes.CDLL(find_library('c'))
size = ctypes.c_size_t()
buf = ctypes.c_int()
size.value = ctypes.sizeof(buf)
libc.sysctlbyname("kern.boottime", ctypes.byref(buf), ctypes.byref(size), None, 0)
os_uptime_secs = time.time() - float(buf.value)
return os_uptime_secs
except (ImportError, AttributeError, IOError, NameError):
pass
try:
# For OpenBSD, Python 2. See issue #428.
import subprocess
from datetime import datetime
cmd = ['sysctl', 'kern.boottime']
proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
o, e = proc.communicate()
# Check for errors
if e:
raise IOError
time_t = o.decode('ascii').split()
time_as_string = time_t[1] + " " + time_t[2] + " " + time_t[4][:4] + " " + time_t[3]
os_time = datetime.strptime(time_as_string, "%b %d %Y %H:%M:%S")
epoch_time = (os_time - datetime(1970, 1, 1)).total_seconds()
os_uptime_secs = time.time() - epoch_time
return os_uptime_secs
except (IOError, IndexError, ValueError):
pass
# Nothing seems to be working. Return None
return None