568 lines
17 KiB
Python
568 lines
17 KiB
Python
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
|
|
# Use of this source code is governed by a BSD-style license that can be
|
|
# found in the LICENSE file.
|
|
|
|
"""macOS platform implementation."""
|
|
|
|
import contextlib
|
|
import errno
|
|
import functools
|
|
import os
|
|
from collections import namedtuple
|
|
|
|
from . import _common
|
|
from . import _psposix
|
|
from . import _psutil_osx as cext
|
|
from . import _psutil_posix as cext_posix
|
|
from ._common import conn_tmap
|
|
from ._common import conn_to_ntuple
|
|
from ._common import isfile_strict
|
|
from ._common import memoize_when_activated
|
|
from ._common import parse_environ_block
|
|
from ._compat import PermissionError
|
|
from ._compat import ProcessLookupError
|
|
from ._common import usage_percent
|
|
|
|
|
|
__extra__all__ = []
|
|
|
|
|
|
# =====================================================================
|
|
# --- globals
|
|
# =====================================================================
|
|
|
|
|
|
PAGESIZE = os.sysconf("SC_PAGE_SIZE")
|
|
AF_LINK = cext_posix.AF_LINK
|
|
|
|
TCP_STATUSES = {
|
|
cext.TCPS_ESTABLISHED: _common.CONN_ESTABLISHED,
|
|
cext.TCPS_SYN_SENT: _common.CONN_SYN_SENT,
|
|
cext.TCPS_SYN_RECEIVED: _common.CONN_SYN_RECV,
|
|
cext.TCPS_FIN_WAIT_1: _common.CONN_FIN_WAIT1,
|
|
cext.TCPS_FIN_WAIT_2: _common.CONN_FIN_WAIT2,
|
|
cext.TCPS_TIME_WAIT: _common.CONN_TIME_WAIT,
|
|
cext.TCPS_CLOSED: _common.CONN_CLOSE,
|
|
cext.TCPS_CLOSE_WAIT: _common.CONN_CLOSE_WAIT,
|
|
cext.TCPS_LAST_ACK: _common.CONN_LAST_ACK,
|
|
cext.TCPS_LISTEN: _common.CONN_LISTEN,
|
|
cext.TCPS_CLOSING: _common.CONN_CLOSING,
|
|
cext.PSUTIL_CONN_NONE: _common.CONN_NONE,
|
|
}
|
|
|
|
PROC_STATUSES = {
|
|
cext.SIDL: _common.STATUS_IDLE,
|
|
cext.SRUN: _common.STATUS_RUNNING,
|
|
cext.SSLEEP: _common.STATUS_SLEEPING,
|
|
cext.SSTOP: _common.STATUS_STOPPED,
|
|
cext.SZOMB: _common.STATUS_ZOMBIE,
|
|
}
|
|
|
|
kinfo_proc_map = dict(
|
|
ppid=0,
|
|
ruid=1,
|
|
euid=2,
|
|
suid=3,
|
|
rgid=4,
|
|
egid=5,
|
|
sgid=6,
|
|
ttynr=7,
|
|
ctime=8,
|
|
status=9,
|
|
name=10,
|
|
)
|
|
|
|
pidtaskinfo_map = dict(
|
|
cpuutime=0,
|
|
cpustime=1,
|
|
rss=2,
|
|
vms=3,
|
|
pfaults=4,
|
|
pageins=5,
|
|
numthreads=6,
|
|
volctxsw=7,
|
|
)
|
|
|
|
# These objects get set on "import psutil" from the __init__.py
|
|
# file, see: https://github.com/giampaolo/psutil/issues/1402
|
|
NoSuchProcess = None
|
|
ZombieProcess = None
|
|
AccessDenied = None
|
|
TimeoutExpired = None
|
|
|
|
|
|
# =====================================================================
|
|
# --- named tuples
|
|
# =====================================================================
|
|
|
|
|
|
# psutil.cpu_times()
|
|
scputimes = namedtuple('scputimes', ['user', 'nice', 'system', 'idle'])
|
|
# psutil.virtual_memory()
|
|
svmem = namedtuple(
|
|
'svmem', ['total', 'available', 'percent', 'used', 'free',
|
|
'active', 'inactive', 'wired'])
|
|
# psutil.Process.memory_info()
|
|
pmem = namedtuple('pmem', ['rss', 'vms', 'pfaults', 'pageins'])
|
|
# psutil.Process.memory_full_info()
|
|
pfullmem = namedtuple('pfullmem', pmem._fields + ('uss', ))
|
|
|
|
|
|
# =====================================================================
|
|
# --- memory
|
|
# =====================================================================
|
|
|
|
|
|
def virtual_memory():
|
|
"""System virtual memory as a namedtuple."""
|
|
total, active, inactive, wired, free, speculative = cext.virtual_mem()
|
|
# This is how Zabbix calculate avail and used mem:
|
|
# https://github.com/zabbix/zabbix/blob/trunk/src/libs/zbxsysinfo/
|
|
# osx/memory.c
|
|
# Also see: https://github.com/giampaolo/psutil/issues/1277
|
|
avail = inactive + free
|
|
used = active + wired
|
|
# This is NOT how Zabbix calculates free mem but it matches "free"
|
|
# cmdline utility.
|
|
free -= speculative
|
|
percent = usage_percent((total - avail), total, round_=1)
|
|
return svmem(total, avail, percent, used, free,
|
|
active, inactive, wired)
|
|
|
|
|
|
def swap_memory():
|
|
"""Swap system memory as a (total, used, free, sin, sout) tuple."""
|
|
total, used, free, sin, sout = cext.swap_mem()
|
|
percent = usage_percent(used, total, round_=1)
|
|
return _common.sswap(total, used, free, percent, sin, sout)
|
|
|
|
|
|
# =====================================================================
|
|
# --- CPU
|
|
# =====================================================================
|
|
|
|
|
|
def cpu_times():
|
|
"""Return system CPU times as a namedtuple."""
|
|
user, nice, system, idle = cext.cpu_times()
|
|
return scputimes(user, nice, system, idle)
|
|
|
|
|
|
def per_cpu_times():
|
|
"""Return system CPU times as a named tuple"""
|
|
ret = []
|
|
for cpu_t in cext.per_cpu_times():
|
|
user, nice, system, idle = cpu_t
|
|
item = scputimes(user, nice, system, idle)
|
|
ret.append(item)
|
|
return ret
|
|
|
|
|
|
def cpu_count_logical():
|
|
"""Return the number of logical CPUs in the system."""
|
|
return cext.cpu_count_logical()
|
|
|
|
|
|
def cpu_count_physical():
|
|
"""Return the number of physical CPUs in the system."""
|
|
return cext.cpu_count_phys()
|
|
|
|
|
|
def cpu_stats():
|
|
ctx_switches, interrupts, soft_interrupts, syscalls, traps = \
|
|
cext.cpu_stats()
|
|
return _common.scpustats(
|
|
ctx_switches, interrupts, soft_interrupts, syscalls)
|
|
|
|
|
|
def cpu_freq():
|
|
"""Return CPU frequency.
|
|
On macOS per-cpu frequency is not supported.
|
|
Also, the returned frequency never changes, see:
|
|
https://arstechnica.com/civis/viewtopic.php?f=19&t=465002
|
|
"""
|
|
curr, min_, max_ = cext.cpu_freq()
|
|
return [_common.scpufreq(curr, min_, max_)]
|
|
|
|
|
|
# =====================================================================
|
|
# --- disks
|
|
# =====================================================================
|
|
|
|
|
|
disk_usage = _psposix.disk_usage
|
|
disk_io_counters = cext.disk_io_counters
|
|
|
|
|
|
def disk_partitions(all=False):
|
|
"""Return mounted disk partitions as a list of namedtuples."""
|
|
retlist = []
|
|
partitions = cext.disk_partitions()
|
|
for partition in partitions:
|
|
device, mountpoint, fstype, opts = partition
|
|
if device == 'none':
|
|
device = ''
|
|
if not all:
|
|
if not os.path.isabs(device) or not os.path.exists(device):
|
|
continue
|
|
ntuple = _common.sdiskpart(device, mountpoint, fstype, opts)
|
|
retlist.append(ntuple)
|
|
return retlist
|
|
|
|
|
|
# =====================================================================
|
|
# --- sensors
|
|
# =====================================================================
|
|
|
|
|
|
def sensors_battery():
|
|
"""Return battery information."""
|
|
try:
|
|
percent, minsleft, power_plugged = cext.sensors_battery()
|
|
except NotImplementedError:
|
|
# no power source - return None according to interface
|
|
return None
|
|
power_plugged = power_plugged == 1
|
|
if power_plugged:
|
|
secsleft = _common.POWER_TIME_UNLIMITED
|
|
elif minsleft == -1:
|
|
secsleft = _common.POWER_TIME_UNKNOWN
|
|
else:
|
|
secsleft = minsleft * 60
|
|
return _common.sbattery(percent, secsleft, power_plugged)
|
|
|
|
|
|
# =====================================================================
|
|
# --- network
|
|
# =====================================================================
|
|
|
|
|
|
net_io_counters = cext.net_io_counters
|
|
net_if_addrs = cext_posix.net_if_addrs
|
|
|
|
|
|
def net_connections(kind='inet'):
|
|
"""System-wide network connections."""
|
|
# Note: on macOS this will fail with AccessDenied unless
|
|
# the process is owned by root.
|
|
ret = []
|
|
for pid in pids():
|
|
try:
|
|
cons = Process(pid).connections(kind)
|
|
except NoSuchProcess:
|
|
continue
|
|
else:
|
|
if cons:
|
|
for c in cons:
|
|
c = list(c) + [pid]
|
|
ret.append(_common.sconn(*c))
|
|
return ret
|
|
|
|
|
|
def net_if_stats():
|
|
"""Get NIC stats (isup, duplex, speed, mtu)."""
|
|
names = net_io_counters().keys()
|
|
ret = {}
|
|
for name in names:
|
|
try:
|
|
mtu = cext_posix.net_if_mtu(name)
|
|
isup = cext_posix.net_if_flags(name)
|
|
duplex, speed = cext_posix.net_if_duplex_speed(name)
|
|
except OSError as err:
|
|
# https://github.com/giampaolo/psutil/issues/1279
|
|
if err.errno != errno.ENODEV:
|
|
raise
|
|
else:
|
|
if hasattr(_common, 'NicDuplex'):
|
|
duplex = _common.NicDuplex(duplex)
|
|
ret[name] = _common.snicstats(isup, duplex, speed, mtu)
|
|
return ret
|
|
|
|
|
|
# =====================================================================
|
|
# --- other system functions
|
|
# =====================================================================
|
|
|
|
|
|
def boot_time():
|
|
"""The system boot time expressed in seconds since the epoch."""
|
|
return cext.boot_time()
|
|
|
|
|
|
def users():
|
|
"""Return currently connected users as a list of namedtuples."""
|
|
retlist = []
|
|
rawlist = cext.users()
|
|
for item in rawlist:
|
|
user, tty, hostname, tstamp, pid = item
|
|
if tty == '~':
|
|
continue # reboot or shutdown
|
|
if not tstamp:
|
|
continue
|
|
nt = _common.suser(user, tty or None, hostname or None, tstamp, pid)
|
|
retlist.append(nt)
|
|
return retlist
|
|
|
|
|
|
# =====================================================================
|
|
# --- processes
|
|
# =====================================================================
|
|
|
|
|
|
def pids():
|
|
ls = cext.pids()
|
|
if 0 not in ls:
|
|
# On certain macOS versions pids() C doesn't return PID 0 but
|
|
# "ps" does and the process is querable via sysctl():
|
|
# https://travis-ci.org/giampaolo/psutil/jobs/309619941
|
|
try:
|
|
Process(0).create_time()
|
|
ls.insert(0, 0)
|
|
except NoSuchProcess:
|
|
pass
|
|
except AccessDenied:
|
|
ls.insert(0, 0)
|
|
return ls
|
|
|
|
|
|
pid_exists = _psposix.pid_exists
|
|
|
|
|
|
def wrap_exceptions(fun):
|
|
"""Decorator which translates bare OSError exceptions into
|
|
NoSuchProcess and AccessDenied.
|
|
"""
|
|
@functools.wraps(fun)
|
|
def wrapper(self, *args, **kwargs):
|
|
try:
|
|
return fun(self, *args, **kwargs)
|
|
except ProcessLookupError:
|
|
raise NoSuchProcess(self.pid, self._name)
|
|
except PermissionError:
|
|
raise AccessDenied(self.pid, self._name)
|
|
except cext.ZombieProcessError:
|
|
raise ZombieProcess(self.pid, self._name, self._ppid)
|
|
return wrapper
|
|
|
|
|
|
@contextlib.contextmanager
|
|
def catch_zombie(proc):
|
|
"""There are some poor C APIs which incorrectly raise ESRCH when
|
|
the process is still alive or it's a zombie, or even RuntimeError
|
|
(those who don't set errno). This is here in order to solve:
|
|
https://github.com/giampaolo/psutil/issues/1044
|
|
"""
|
|
try:
|
|
yield
|
|
except (OSError, RuntimeError) as err:
|
|
if isinstance(err, RuntimeError) or err.errno == errno.ESRCH:
|
|
try:
|
|
# status() is not supposed to lie and correctly detect
|
|
# zombies so if it raises ESRCH it's true.
|
|
status = proc.status()
|
|
except NoSuchProcess:
|
|
raise err
|
|
else:
|
|
if status == _common.STATUS_ZOMBIE:
|
|
raise ZombieProcess(proc.pid, proc._name, proc._ppid)
|
|
else:
|
|
raise AccessDenied(proc.pid, proc._name)
|
|
else:
|
|
raise
|
|
|
|
|
|
class Process(object):
|
|
"""Wrapper class around underlying C implementation."""
|
|
|
|
__slots__ = ["pid", "_name", "_ppid", "_cache"]
|
|
|
|
def __init__(self, pid):
|
|
self.pid = pid
|
|
self._name = None
|
|
self._ppid = None
|
|
|
|
@wrap_exceptions
|
|
@memoize_when_activated
|
|
def _get_kinfo_proc(self):
|
|
# Note: should work with all PIDs without permission issues.
|
|
ret = cext.proc_kinfo_oneshot(self.pid)
|
|
assert len(ret) == len(kinfo_proc_map)
|
|
return ret
|
|
|
|
@wrap_exceptions
|
|
@memoize_when_activated
|
|
def _get_pidtaskinfo(self):
|
|
# Note: should work for PIDs owned by user only.
|
|
with catch_zombie(self):
|
|
ret = cext.proc_pidtaskinfo_oneshot(self.pid)
|
|
assert len(ret) == len(pidtaskinfo_map)
|
|
return ret
|
|
|
|
def oneshot_enter(self):
|
|
self._get_kinfo_proc.cache_activate(self)
|
|
self._get_pidtaskinfo.cache_activate(self)
|
|
|
|
def oneshot_exit(self):
|
|
self._get_kinfo_proc.cache_deactivate(self)
|
|
self._get_pidtaskinfo.cache_deactivate(self)
|
|
|
|
@wrap_exceptions
|
|
def name(self):
|
|
name = self._get_kinfo_proc()[kinfo_proc_map['name']]
|
|
return name if name is not None else cext.proc_name(self.pid)
|
|
|
|
@wrap_exceptions
|
|
def exe(self):
|
|
with catch_zombie(self):
|
|
return cext.proc_exe(self.pid)
|
|
|
|
@wrap_exceptions
|
|
def cmdline(self):
|
|
with catch_zombie(self):
|
|
return cext.proc_cmdline(self.pid)
|
|
|
|
@wrap_exceptions
|
|
def environ(self):
|
|
with catch_zombie(self):
|
|
return parse_environ_block(cext.proc_environ(self.pid))
|
|
|
|
@wrap_exceptions
|
|
def ppid(self):
|
|
self._ppid = self._get_kinfo_proc()[kinfo_proc_map['ppid']]
|
|
return self._ppid
|
|
|
|
@wrap_exceptions
|
|
def cwd(self):
|
|
with catch_zombie(self):
|
|
return cext.proc_cwd(self.pid)
|
|
|
|
@wrap_exceptions
|
|
def uids(self):
|
|
rawtuple = self._get_kinfo_proc()
|
|
return _common.puids(
|
|
rawtuple[kinfo_proc_map['ruid']],
|
|
rawtuple[kinfo_proc_map['euid']],
|
|
rawtuple[kinfo_proc_map['suid']])
|
|
|
|
@wrap_exceptions
|
|
def gids(self):
|
|
rawtuple = self._get_kinfo_proc()
|
|
return _common.puids(
|
|
rawtuple[kinfo_proc_map['rgid']],
|
|
rawtuple[kinfo_proc_map['egid']],
|
|
rawtuple[kinfo_proc_map['sgid']])
|
|
|
|
@wrap_exceptions
|
|
def terminal(self):
|
|
tty_nr = self._get_kinfo_proc()[kinfo_proc_map['ttynr']]
|
|
tmap = _psposix.get_terminal_map()
|
|
try:
|
|
return tmap[tty_nr]
|
|
except KeyError:
|
|
return None
|
|
|
|
@wrap_exceptions
|
|
def memory_info(self):
|
|
rawtuple = self._get_pidtaskinfo()
|
|
return pmem(
|
|
rawtuple[pidtaskinfo_map['rss']],
|
|
rawtuple[pidtaskinfo_map['vms']],
|
|
rawtuple[pidtaskinfo_map['pfaults']],
|
|
rawtuple[pidtaskinfo_map['pageins']],
|
|
)
|
|
|
|
@wrap_exceptions
|
|
def memory_full_info(self):
|
|
basic_mem = self.memory_info()
|
|
uss = cext.proc_memory_uss(self.pid)
|
|
return pfullmem(*basic_mem + (uss, ))
|
|
|
|
@wrap_exceptions
|
|
def cpu_times(self):
|
|
rawtuple = self._get_pidtaskinfo()
|
|
return _common.pcputimes(
|
|
rawtuple[pidtaskinfo_map['cpuutime']],
|
|
rawtuple[pidtaskinfo_map['cpustime']],
|
|
# children user / system times are not retrievable (set to 0)
|
|
0.0, 0.0)
|
|
|
|
@wrap_exceptions
|
|
def create_time(self):
|
|
return self._get_kinfo_proc()[kinfo_proc_map['ctime']]
|
|
|
|
@wrap_exceptions
|
|
def num_ctx_switches(self):
|
|
# Unvoluntary value seems not to be available;
|
|
# getrusage() numbers seems to confirm this theory.
|
|
# We set it to 0.
|
|
vol = self._get_pidtaskinfo()[pidtaskinfo_map['volctxsw']]
|
|
return _common.pctxsw(vol, 0)
|
|
|
|
@wrap_exceptions
|
|
def num_threads(self):
|
|
return self._get_pidtaskinfo()[pidtaskinfo_map['numthreads']]
|
|
|
|
@wrap_exceptions
|
|
def open_files(self):
|
|
if self.pid == 0:
|
|
return []
|
|
files = []
|
|
with catch_zombie(self):
|
|
rawlist = cext.proc_open_files(self.pid)
|
|
for path, fd in rawlist:
|
|
if isfile_strict(path):
|
|
ntuple = _common.popenfile(path, fd)
|
|
files.append(ntuple)
|
|
return files
|
|
|
|
@wrap_exceptions
|
|
def connections(self, kind='inet'):
|
|
if kind not in conn_tmap:
|
|
raise ValueError("invalid %r kind argument; choose between %s"
|
|
% (kind, ', '.join([repr(x) for x in conn_tmap])))
|
|
families, types = conn_tmap[kind]
|
|
with catch_zombie(self):
|
|
rawlist = cext.proc_connections(self.pid, families, types)
|
|
ret = []
|
|
for item in rawlist:
|
|
fd, fam, type, laddr, raddr, status = item
|
|
nt = conn_to_ntuple(fd, fam, type, laddr, raddr, status,
|
|
TCP_STATUSES)
|
|
ret.append(nt)
|
|
return ret
|
|
|
|
@wrap_exceptions
|
|
def num_fds(self):
|
|
if self.pid == 0:
|
|
return 0
|
|
with catch_zombie(self):
|
|
return cext.proc_num_fds(self.pid)
|
|
|
|
@wrap_exceptions
|
|
def wait(self, timeout=None):
|
|
return _psposix.wait_pid(self.pid, timeout, self._name)
|
|
|
|
@wrap_exceptions
|
|
def nice_get(self):
|
|
with catch_zombie(self):
|
|
return cext_posix.getpriority(self.pid)
|
|
|
|
@wrap_exceptions
|
|
def nice_set(self, value):
|
|
with catch_zombie(self):
|
|
return cext_posix.setpriority(self.pid, value)
|
|
|
|
@wrap_exceptions
|
|
def status(self):
|
|
code = self._get_kinfo_proc()[kinfo_proc_map['status']]
|
|
# XXX is '?' legit? (we're not supposed to return it anyway)
|
|
return PROC_STATUSES.get(code, '?')
|
|
|
|
@wrap_exceptions
|
|
def threads(self):
|
|
rawlist = cext.proc_threads(self.pid)
|
|
retlist = []
|
|
for thread_id, utime, stime in rawlist:
|
|
ntuple = _common.pthread(thread_id, utime, stime)
|
|
retlist.append(ntuple)
|
|
return retlist
|