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fune/third_party/python/psutil-cp27-none-win_amd64/psutil/_pswindows.py
smolnar 1e6e466d99 Backed out 4 changesets (bug 1666347, bug 1667152, bug 1661624, bug 1666345) for causing mingw bustage. CLOSED TREE 
Backed out changeset 19f707f5c097 (bug 1666347)
Backed out changeset 3732ee259759 (bug 1666345)
Backed out changeset 353d3c9e74b9 (bug 1661624)
Backed out changeset a651515586a8 (bug 1667152)
2020-11-12 19:55:58 +02:00

1105 lines
36 KiB
Python
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# 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.
"""Windows platform implementation."""
import contextlib
import errno
import functools
import os
import signal
import sys
import time
from collections import namedtuple
from . import _common
from ._common import AccessDenied
from ._common import conn_tmap
from ._common import conn_to_ntuple
from ._common import debug
from ._common import ENCODING
from ._common import ENCODING_ERRS
from ._common import isfile_strict
from ._common import memoize
from ._common import memoize_when_activated
from ._common import NoSuchProcess
from ._common import parse_environ_block
from ._common import TimeoutExpired
from ._common import usage_percent
from ._compat import long
from ._compat import lru_cache
from ._compat import PY3
from ._compat import unicode
from ._compat import xrange
from ._psutil_windows import ABOVE_NORMAL_PRIORITY_CLASS
from ._psutil_windows import BELOW_NORMAL_PRIORITY_CLASS
from ._psutil_windows import HIGH_PRIORITY_CLASS
from ._psutil_windows import IDLE_PRIORITY_CLASS
from ._psutil_windows import NORMAL_PRIORITY_CLASS
from ._psutil_windows import REALTIME_PRIORITY_CLASS
try:
from . import _psutil_windows as cext
except ImportError as err:
if str(err).lower().startswith("dll load failed") and \
sys.getwindowsversion()[0] < 6:
# We may get here if:
# 1) we are on an old Windows version
# 2) psutil was installed via pip + wheel
# See: https://github.com/giampaolo/psutil/issues/811
msg = "this Windows version is too old (< Windows Vista); "
msg += "psutil 3.4.2 is the latest version which supports Windows "
msg += "2000, XP and 2003 server"
raise RuntimeError(msg)
else:
raise
if sys.version_info >= (3, 4):
import enum
else:
enum = None
# process priority constants, import from __init__.py:
# http://msdn.microsoft.com/en-us/library/ms686219(v=vs.85).aspx
__extra__all__ = [
"win_service_iter", "win_service_get",
# Process priority
"ABOVE_NORMAL_PRIORITY_CLASS", "BELOW_NORMAL_PRIORITY_CLASS",
"HIGH_PRIORITY_CLASS", "IDLE_PRIORITY_CLASS", "NORMAL_PRIORITY_CLASS",
"REALTIME_PRIORITY_CLASS",
# IO priority
"IOPRIO_VERYLOW", "IOPRIO_LOW", "IOPRIO_NORMAL", "IOPRIO_HIGH",
# others
"CONN_DELETE_TCB", "AF_LINK",
]
# =====================================================================
# --- globals
# =====================================================================
CONN_DELETE_TCB = "DELETE_TCB"
ERROR_PARTIAL_COPY = 299
PYPY = '__pypy__' in sys.builtin_module_names
if enum is None:
AF_LINK = -1
else:
AddressFamily = enum.IntEnum('AddressFamily', {'AF_LINK': -1})
AF_LINK = AddressFamily.AF_LINK
TCP_STATUSES = {
cext.MIB_TCP_STATE_ESTAB: _common.CONN_ESTABLISHED,
cext.MIB_TCP_STATE_SYN_SENT: _common.CONN_SYN_SENT,
cext.MIB_TCP_STATE_SYN_RCVD: _common.CONN_SYN_RECV,
cext.MIB_TCP_STATE_FIN_WAIT1: _common.CONN_FIN_WAIT1,
cext.MIB_TCP_STATE_FIN_WAIT2: _common.CONN_FIN_WAIT2,
cext.MIB_TCP_STATE_TIME_WAIT: _common.CONN_TIME_WAIT,
cext.MIB_TCP_STATE_CLOSED: _common.CONN_CLOSE,
cext.MIB_TCP_STATE_CLOSE_WAIT: _common.CONN_CLOSE_WAIT,
cext.MIB_TCP_STATE_LAST_ACK: _common.CONN_LAST_ACK,
cext.MIB_TCP_STATE_LISTEN: _common.CONN_LISTEN,
cext.MIB_TCP_STATE_CLOSING: _common.CONN_CLOSING,
cext.MIB_TCP_STATE_DELETE_TCB: CONN_DELETE_TCB,
cext.PSUTIL_CONN_NONE: _common.CONN_NONE,
}
if enum is not None:
class Priority(enum.IntEnum):
ABOVE_NORMAL_PRIORITY_CLASS = ABOVE_NORMAL_PRIORITY_CLASS
BELOW_NORMAL_PRIORITY_CLASS = BELOW_NORMAL_PRIORITY_CLASS
HIGH_PRIORITY_CLASS = HIGH_PRIORITY_CLASS
IDLE_PRIORITY_CLASS = IDLE_PRIORITY_CLASS
NORMAL_PRIORITY_CLASS = NORMAL_PRIORITY_CLASS
REALTIME_PRIORITY_CLASS = REALTIME_PRIORITY_CLASS
globals().update(Priority.__members__)
if enum is None:
IOPRIO_VERYLOW = 0
IOPRIO_LOW = 1
IOPRIO_NORMAL = 2
IOPRIO_HIGH = 3
else:
class IOPriority(enum.IntEnum):
IOPRIO_VERYLOW = 0
IOPRIO_LOW = 1
IOPRIO_NORMAL = 2
IOPRIO_HIGH = 3
globals().update(IOPriority.__members__)
pinfo_map = dict(
num_handles=0,
ctx_switches=1,
user_time=2,
kernel_time=3,
create_time=4,
num_threads=5,
io_rcount=6,
io_wcount=7,
io_rbytes=8,
io_wbytes=9,
io_count_others=10,
io_bytes_others=11,
num_page_faults=12,
peak_wset=13,
wset=14,
peak_paged_pool=15,
paged_pool=16,
peak_non_paged_pool=17,
non_paged_pool=18,
pagefile=19,
peak_pagefile=20,
mem_private=21,
)
# =====================================================================
# --- named tuples
# =====================================================================
# psutil.cpu_times()
scputimes = namedtuple('scputimes',
['user', 'system', 'idle', 'interrupt', 'dpc'])
# psutil.virtual_memory()
svmem = namedtuple('svmem', ['total', 'available', 'percent', 'used', 'free'])
# psutil.Process.memory_info()
pmem = namedtuple(
'pmem', ['rss', 'vms',
'num_page_faults', 'peak_wset', 'wset', 'peak_paged_pool',
'paged_pool', 'peak_nonpaged_pool', 'nonpaged_pool',
'pagefile', 'peak_pagefile', 'private'])
# psutil.Process.memory_full_info()
pfullmem = namedtuple('pfullmem', pmem._fields + ('uss', ))
# psutil.Process.memory_maps(grouped=True)
pmmap_grouped = namedtuple('pmmap_grouped', ['path', 'rss'])
# psutil.Process.memory_maps(grouped=False)
pmmap_ext = namedtuple(
'pmmap_ext', 'addr perms ' + ' '.join(pmmap_grouped._fields))
# psutil.Process.io_counters()
pio = namedtuple('pio', ['read_count', 'write_count',
'read_bytes', 'write_bytes',
'other_count', 'other_bytes'])
# =====================================================================
# --- utils
# =====================================================================
@lru_cache(maxsize=512)
def convert_dos_path(s):
r"""Convert paths using native DOS format like:
"\Device\HarddiskVolume1\Windows\systemew\file.txt"
into:
"C:\Windows\systemew\file.txt"
"""
rawdrive = '\\'.join(s.split('\\')[:3])
driveletter = cext.win32_QueryDosDevice(rawdrive)
remainder = s[len(rawdrive):]
return os.path.join(driveletter, remainder)
def py2_strencode(s):
"""Encode a unicode string to a byte string by using the default fs
encoding + "replace" error handler.
"""
if PY3:
return s
else:
if isinstance(s, str):
return s
else:
return s.encode(ENCODING, ENCODING_ERRS)
@memoize
def getpagesize():
return cext.getpagesize()
# =====================================================================
# --- memory
# =====================================================================
def virtual_memory():
"""System virtual memory as a namedtuple."""
mem = cext.virtual_mem()
totphys, availphys, totpagef, availpagef, totvirt, freevirt = mem
#
total = totphys
avail = availphys
free = availphys
used = total - avail
percent = usage_percent((total - avail), total, round_=1)
return svmem(total, avail, percent, used, free)
def swap_memory():
"""Swap system memory as a (total, used, free, sin, sout) tuple."""
mem = cext.virtual_mem()
total = mem[2]
free = mem[3]
used = total - free
percent = usage_percent(used, total, round_=1)
return _common.sswap(total, used, free, percent, 0, 0)
# =====================================================================
# --- disk
# =====================================================================
disk_io_counters = cext.disk_io_counters
def disk_usage(path):
"""Return disk usage associated with path."""
if PY3 and isinstance(path, bytes):
# XXX: do we want to use "strict"? Probably yes, in order
# to fail immediately. After all we are accepting input here...
path = path.decode(ENCODING, errors="strict")
total, free = cext.disk_usage(path)
used = total - free
percent = usage_percent(used, total, round_=1)
return _common.sdiskusage(total, used, free, percent)
def disk_partitions(all):
"""Return disk partitions."""
rawlist = cext.disk_partitions(all)
return [_common.sdiskpart(*x) for x in rawlist]
# =====================================================================
# --- CPU
# =====================================================================
def cpu_times():
"""Return system CPU times as a named tuple."""
user, system, idle = cext.cpu_times()
# Internally, GetSystemTimes() is used, and it doesn't return
# interrupt and dpc times. cext.per_cpu_times() does, so we
# rely on it to get those only.
percpu_summed = scputimes(*[sum(n) for n in zip(*cext.per_cpu_times())])
return scputimes(user, system, idle,
percpu_summed.interrupt, percpu_summed.dpc)
def per_cpu_times():
"""Return system per-CPU times as a list of named tuples."""
ret = []
for user, system, idle, interrupt, dpc in cext.per_cpu_times():
item = scputimes(user, system, idle, interrupt, dpc)
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 CPU cores in the system."""
return cext.cpu_count_phys()
def cpu_stats():
"""Return CPU statistics."""
ctx_switches, interrupts, dpcs, syscalls = cext.cpu_stats()
soft_interrupts = 0
return _common.scpustats(ctx_switches, interrupts, soft_interrupts,
syscalls)
def cpu_freq():
"""Return CPU frequency.
On Windows per-cpu frequency is not supported.
"""
curr, max_ = cext.cpu_freq()
min_ = 0.0
return [_common.scpufreq(float(curr), min_, float(max_))]
_loadavg_inititialized = False
def getloadavg():
"""Return the number of processes in the system run queue averaged
over the last 1, 5, and 15 minutes respectively as a tuple"""
global _loadavg_inititialized
if not _loadavg_inititialized:
cext.init_loadavg_counter()
_loadavg_inititialized = True
# Drop to 2 decimal points which is what Linux does
raw_loads = cext.getloadavg()
return tuple([round(load, 2) for load in raw_loads])
# =====================================================================
# --- network
# =====================================================================
def net_connections(kind, _pid=-1):
"""Return socket connections. If pid == -1 return system-wide
connections (as opposed to connections opened by one process only).
"""
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]
rawlist = cext.net_connections(_pid, families, types)
ret = set()
for item in rawlist:
fd, fam, type, laddr, raddr, status, pid = item
nt = conn_to_ntuple(fd, fam, type, laddr, raddr, status, TCP_STATUSES,
pid=pid if _pid == -1 else None)
ret.add(nt)
return list(ret)
def net_if_stats():
"""Get NIC stats (isup, duplex, speed, mtu)."""
ret = {}
rawdict = cext.net_if_stats()
for name, items in rawdict.items():
if not PY3:
assert isinstance(name, unicode), type(name)
name = py2_strencode(name)
isup, duplex, speed, mtu = items
if hasattr(_common, 'NicDuplex'):
duplex = _common.NicDuplex(duplex)
ret[name] = _common.snicstats(isup, duplex, speed, mtu)
return ret
def net_io_counters():
"""Return network I/O statistics for every network interface
installed on the system as a dict of raw tuples.
"""
ret = cext.net_io_counters()
return dict([(py2_strencode(k), v) for k, v in ret.items()])
def net_if_addrs():
"""Return the addresses associated to each NIC."""
ret = []
for items in cext.net_if_addrs():
items = list(items)
items[0] = py2_strencode(items[0])
ret.append(items)
return ret
# =====================================================================
# --- sensors
# =====================================================================
def sensors_battery():
"""Return battery information."""
# For constants meaning see:
# https://msdn.microsoft.com/en-us/library/windows/desktop/
# aa373232(v=vs.85).aspx
acline_status, flags, percent, secsleft = cext.sensors_battery()
power_plugged = acline_status == 1
no_battery = bool(flags & 128)
charging = bool(flags & 8)
if no_battery:
return None
if power_plugged or charging:
secsleft = _common.POWER_TIME_UNLIMITED
elif secsleft == -1:
secsleft = _common.POWER_TIME_UNKNOWN
return _common.sbattery(percent, secsleft, power_plugged)
# =====================================================================
# --- other system functions
# =====================================================================
_last_btime = 0
def boot_time():
"""The system boot time expressed in seconds since the epoch."""
# This dirty hack is to adjust the precision of the returned
# value which may have a 1 second fluctuation, see:
# https://github.com/giampaolo/psutil/issues/1007
global _last_btime
ret = float(cext.boot_time())
if abs(ret - _last_btime) <= 1:
return _last_btime
else:
_last_btime = ret
return ret
def users():
"""Return currently connected users as a list of namedtuples."""
retlist = []
rawlist = cext.users()
for item in rawlist:
user, hostname, tstamp = item
user = py2_strencode(user)
nt = _common.suser(user, None, hostname, tstamp, None)
retlist.append(nt)
return retlist
# =====================================================================
# --- Windows services
# =====================================================================
def win_service_iter():
"""Yields a list of WindowsService instances."""
for name, display_name in cext.winservice_enumerate():
yield WindowsService(py2_strencode(name), py2_strencode(display_name))
def win_service_get(name):
"""Open a Windows service and return it as a WindowsService instance."""
service = WindowsService(name, None)
service._display_name = service._query_config()['display_name']
return service
class WindowsService(object):
"""Represents an installed Windows service."""
def __init__(self, name, display_name):
self._name = name
self._display_name = display_name
def __str__(self):
details = "(name=%r, display_name=%r)" % (
self._name, self._display_name)
return "%s%s" % (self.__class__.__name__, details)
def __repr__(self):
return "<%s at %s>" % (self.__str__(), id(self))
def __eq__(self, other):
# Test for equality with another WindosService object based
# on name.
if not isinstance(other, WindowsService):
return NotImplemented
return self._name == other._name
def __ne__(self, other):
return not self == other
def _query_config(self):
with self._wrap_exceptions():
display_name, binpath, username, start_type = \
cext.winservice_query_config(self._name)
# XXX - update _self.display_name?
return dict(
display_name=py2_strencode(display_name),
binpath=py2_strencode(binpath),
username=py2_strencode(username),
start_type=py2_strencode(start_type))
def _query_status(self):
with self._wrap_exceptions():
status, pid = cext.winservice_query_status(self._name)
if pid == 0:
pid = None
return dict(status=status, pid=pid)
@contextlib.contextmanager
def _wrap_exceptions(self):
"""Ctx manager which translates bare OSError and WindowsError
exceptions into NoSuchProcess and AccessDenied.
"""
try:
yield
except OSError as err:
if is_permission_err(err):
raise AccessDenied(
pid=None, name=self._name,
msg="service %r is not querable (not enough privileges)" %
self._name)
elif err.winerror in (cext.ERROR_INVALID_NAME,
cext.ERROR_SERVICE_DOES_NOT_EXIST):
raise NoSuchProcess(
pid=None, name=self._name,
msg="service %r does not exist)" % self._name)
else:
raise
# config query
def name(self):
"""The service name. This string is how a service is referenced
and can be passed to win_service_get() to get a new
WindowsService instance.
"""
return self._name
def display_name(self):
"""The service display name. The value is cached when this class
is instantiated.
"""
return self._display_name
def binpath(self):
"""The fully qualified path to the service binary/exe file as
a string, including command line arguments.
"""
return self._query_config()['binpath']
def username(self):
"""The name of the user that owns this service."""
return self._query_config()['username']
def start_type(self):
"""A string which can either be "automatic", "manual" or
"disabled".
"""
return self._query_config()['start_type']
# status query
def pid(self):
"""The process PID, if any, else None. This can be passed
to Process class to control the service's process.
"""
return self._query_status()['pid']
def status(self):
"""Service status as a string."""
return self._query_status()['status']
def description(self):
"""Service long description."""
return py2_strencode(cext.winservice_query_descr(self.name()))
# utils
def as_dict(self):
"""Utility method retrieving all the information above as a
dictionary.
"""
d = self._query_config()
d.update(self._query_status())
d['name'] = self.name()
d['display_name'] = self.display_name()
d['description'] = self.description()
return d
# actions
# XXX: the necessary C bindings for start() and stop() are
# implemented but for now I prefer not to expose them.
# I may change my mind in the future. Reasons:
# - they require Administrator privileges
# - can't implement a timeout for stop() (unless by using a thread,
# which sucks)
# - would require adding ServiceAlreadyStarted and
# ServiceAlreadyStopped exceptions, adding two new APIs.
# - we might also want to have modify(), which would basically mean
# rewriting win32serviceutil.ChangeServiceConfig, which involves a
# lot of stuff (and API constants which would pollute the API), see:
# http://pyxr.sourceforge.net/PyXR/c/python24/lib/site-packages/
# win32/lib/win32serviceutil.py.html#0175
# - psutil is typically about "read only" monitoring stuff;
# win_service_* APIs should only be used to retrieve a service and
# check whether it's running
# def start(self, timeout=None):
# with self._wrap_exceptions():
# cext.winservice_start(self.name())
# if timeout:
# giveup_at = time.time() + timeout
# while True:
# if self.status() == "running":
# return
# else:
# if time.time() > giveup_at:
# raise TimeoutExpired(timeout)
# else:
# time.sleep(.1)
# def stop(self):
# # Note: timeout is not implemented because it's just not
# # possible, see:
# # http://stackoverflow.com/questions/11973228/
# with self._wrap_exceptions():
# return cext.winservice_stop(self.name())
# =====================================================================
# --- processes
# =====================================================================
pids = cext.pids
pid_exists = cext.pid_exists
ppid_map = cext.ppid_map # used internally by Process.children()
def is_permission_err(exc):
"""Return True if this is a permission error."""
assert isinstance(exc, OSError), exc
# On Python 2 OSError doesn't always have 'winerror'. Sometimes
# it does, in which case the original exception was WindowsError
# (which is a subclass of OSError).
return exc.errno in (errno.EPERM, errno.EACCES) or \
getattr(exc, "winerror", -1) in (cext.ERROR_ACCESS_DENIED,
cext.ERROR_PRIVILEGE_NOT_HELD)
def convert_oserror(exc, pid=None, name=None):
"""Convert OSError into NoSuchProcess or AccessDenied."""
assert isinstance(exc, OSError), exc
if is_permission_err(exc):
return AccessDenied(pid=pid, name=name)
if exc.errno == errno.ESRCH:
return NoSuchProcess(pid=pid, name=name)
raise exc
def wrap_exceptions(fun):
"""Decorator which converts OSError into NoSuchProcess or AccessDenied."""
@functools.wraps(fun)
def wrapper(self, *args, **kwargs):
try:
return fun(self, *args, **kwargs)
except OSError as err:
raise convert_oserror(err, pid=self.pid, name=self._name)
return wrapper
def retry_error_partial_copy(fun):
"""Workaround for https://github.com/giampaolo/psutil/issues/875.
See: https://stackoverflow.com/questions/4457745#4457745
"""
@functools.wraps(fun)
def wrapper(self, *args, **kwargs):
delay = 0.0001
times = 33
for x in range(times): # retries for roughly 1 second
try:
return fun(self, *args, **kwargs)
except WindowsError as _:
err = _
if err.winerror == ERROR_PARTIAL_COPY:
time.sleep(delay)
delay = min(delay * 2, 0.04)
continue
else:
raise
else:
msg = "%s retried %s times, converted to AccessDenied as it's " \
"still returning %r" % (fun, times, err)
raise AccessDenied(pid=self.pid, name=self._name, msg=msg)
return wrapper
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
# --- oneshot() stuff
def oneshot_enter(self):
self._proc_info.cache_activate(self)
self.exe.cache_activate(self)
def oneshot_exit(self):
self._proc_info.cache_deactivate(self)
self.exe.cache_deactivate(self)
@memoize_when_activated
def _proc_info(self):
"""Return multiple information about this process as a
raw tuple.
"""
ret = cext.proc_info(self.pid)
assert len(ret) == len(pinfo_map)
return ret
def name(self):
"""Return process name, which on Windows is always the final
part of the executable.
"""
# This is how PIDs 0 and 4 are always represented in taskmgr
# and process-hacker.
if self.pid == 0:
return "System Idle Process"
if self.pid == 4:
return "System"
return os.path.basename(self.exe())
@wrap_exceptions
@memoize_when_activated
def exe(self):
if PYPY:
try:
exe = cext.proc_exe(self.pid)
except WindowsError as err:
# 24 = ERROR_TOO_MANY_OPEN_FILES. Not sure why this happens
# (perhaps PyPy's JIT delaying garbage collection of files?).
if err.errno == 24:
debug("%r forced into AccessDenied" % err)
raise AccessDenied(self.pid, self._name)
raise
else:
exe = cext.proc_exe(self.pid)
if not PY3:
exe = py2_strencode(exe)
if exe.startswith('\\'):
return convert_dos_path(exe)
return exe # May be "Registry", "MemCompression", ...
@wrap_exceptions
@retry_error_partial_copy
def cmdline(self):
if cext.WINVER >= cext.WINDOWS_8_1:
# PEB method detects cmdline changes but requires more
# privileges: https://github.com/giampaolo/psutil/pull/1398
try:
ret = cext.proc_cmdline(self.pid, use_peb=True)
except OSError as err:
if is_permission_err(err):
ret = cext.proc_cmdline(self.pid, use_peb=False)
else:
raise
else:
ret = cext.proc_cmdline(self.pid, use_peb=True)
if PY3:
return ret
else:
return [py2_strencode(s) for s in ret]
@wrap_exceptions
@retry_error_partial_copy
def environ(self):
ustr = cext.proc_environ(self.pid)
if ustr and not PY3:
assert isinstance(ustr, unicode), type(ustr)
return parse_environ_block(py2_strencode(ustr))
def ppid(self):
try:
return ppid_map()[self.pid]
except KeyError:
raise NoSuchProcess(self.pid, self._name)
def _get_raw_meminfo(self):
try:
return cext.proc_memory_info(self.pid)
except OSError as err:
if is_permission_err(err):
# TODO: the C ext can probably be refactored in order
# to get this from cext.proc_info()
info = self._proc_info()
return (
info[pinfo_map['num_page_faults']],
info[pinfo_map['peak_wset']],
info[pinfo_map['wset']],
info[pinfo_map['peak_paged_pool']],
info[pinfo_map['paged_pool']],
info[pinfo_map['peak_non_paged_pool']],
info[pinfo_map['non_paged_pool']],
info[pinfo_map['pagefile']],
info[pinfo_map['peak_pagefile']],
info[pinfo_map['mem_private']],
)
raise
@wrap_exceptions
def memory_info(self):
# on Windows RSS == WorkingSetSize and VSM == PagefileUsage.
# Underlying C function returns fields of PROCESS_MEMORY_COUNTERS
# struct.
t = self._get_raw_meminfo()
rss = t[2] # wset
vms = t[7] # pagefile
return pmem(*(rss, vms, ) + t)
@wrap_exceptions
def memory_full_info(self):
basic_mem = self.memory_info()
uss = cext.proc_memory_uss(self.pid)
uss *= getpagesize()
return pfullmem(*basic_mem + (uss, ))
def memory_maps(self):
try:
raw = cext.proc_memory_maps(self.pid)
except OSError as err:
# XXX - can't use wrap_exceptions decorator as we're
# returning a generator; probably needs refactoring.
raise convert_oserror(err, self.pid, self._name)
else:
for addr, perm, path, rss in raw:
path = convert_dos_path(path)
if not PY3:
path = py2_strencode(path)
addr = hex(addr)
yield (addr, perm, path, rss)
@wrap_exceptions
def kill(self):
return cext.proc_kill(self.pid)
@wrap_exceptions
def send_signal(self, sig):
if sig == signal.SIGTERM:
cext.proc_kill(self.pid)
# py >= 2.7
elif sig in (getattr(signal, "CTRL_C_EVENT", object()),
getattr(signal, "CTRL_BREAK_EVENT", object())):
os.kill(self.pid, sig)
else:
raise ValueError(
"only SIGTERM, CTRL_C_EVENT and CTRL_BREAK_EVENT signals "
"are supported on Windows")
@wrap_exceptions
def wait(self, timeout=None):
if timeout is None:
cext_timeout = cext.INFINITE
else:
# WaitForSingleObject() expects time in milliseconds.
cext_timeout = int(timeout * 1000)
timer = getattr(time, 'monotonic', time.time)
stop_at = timer() + timeout if timeout is not None else None
try:
# Exit code is supposed to come from GetExitCodeProcess().
# May also be None if OpenProcess() failed with
# ERROR_INVALID_PARAMETER, meaning PID is already gone.
exit_code = cext.proc_wait(self.pid, cext_timeout)
except cext.TimeoutExpired:
# WaitForSingleObject() returned WAIT_TIMEOUT. Just raise.
raise TimeoutExpired(timeout, self.pid, self._name)
except cext.TimeoutAbandoned:
# WaitForSingleObject() returned WAIT_ABANDONED, see:
# https://github.com/giampaolo/psutil/issues/1224
# We'll just rely on the internal polling and return None
# when the PID disappears. Subprocess module does the same
# (return None):
# https://github.com/python/cpython/blob/
# be50a7b627d0aa37e08fa8e2d5568891f19903ce/
# Lib/subprocess.py#L1193-L1194
exit_code = None
# At this point WaitForSingleObject() returned WAIT_OBJECT_0,
# meaning the process is gone. Stupidly there are cases where
# its PID may still stick around so we do a further internal
# polling.
delay = 0.0001
while True:
if not pid_exists(self.pid):
return exit_code
if stop_at and timer() >= stop_at:
raise TimeoutExpired(timeout, pid=self.pid, name=self._name)
time.sleep(delay)
delay = min(delay * 2, 0.04) # incremental delay
@wrap_exceptions
def username(self):
if self.pid in (0, 4):
return 'NT AUTHORITY\\SYSTEM'
domain, user = cext.proc_username(self.pid)
return py2_strencode(domain) + '\\' + py2_strencode(user)
@wrap_exceptions
def create_time(self):
# Note: proc_times() not put under oneshot() 'cause create_time()
# is already cached by the main Process class.
try:
user, system, created = cext.proc_times(self.pid)
return created
except OSError as err:
if is_permission_err(err):
return self._proc_info()[pinfo_map['create_time']]
raise
@wrap_exceptions
def num_threads(self):
return self._proc_info()[pinfo_map['num_threads']]
@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
@wrap_exceptions
def cpu_times(self):
try:
user, system, created = cext.proc_times(self.pid)
except OSError as err:
if not is_permission_err(err):
raise
info = self._proc_info()
user = info[pinfo_map['user_time']]
system = info[pinfo_map['kernel_time']]
# Children user/system times are not retrievable (set to 0).
return _common.pcputimes(user, system, 0.0, 0.0)
@wrap_exceptions
def suspend(self):
cext.proc_suspend_or_resume(self.pid, True)
@wrap_exceptions
def resume(self):
cext.proc_suspend_or_resume(self.pid, False)
@wrap_exceptions
@retry_error_partial_copy
def cwd(self):
if self.pid in (0, 4):
raise AccessDenied(self.pid, self._name)
# return a normalized pathname since the native C function appends
# "\\" at the and of the path
path = cext.proc_cwd(self.pid)
return py2_strencode(os.path.normpath(path))
@wrap_exceptions
def open_files(self):
if self.pid in (0, 4):
return []
ret = set()
# Filenames come in in native format like:
# "\Device\HarddiskVolume1\Windows\systemew\file.txt"
# Convert the first part in the corresponding drive letter
# (e.g. "C:\") by using Windows's QueryDosDevice()
raw_file_names = cext.proc_open_files(self.pid)
for _file in raw_file_names:
_file = convert_dos_path(_file)
if isfile_strict(_file):
if not PY3:
_file = py2_strencode(_file)
ntuple = _common.popenfile(_file, -1)
ret.add(ntuple)
return list(ret)
@wrap_exceptions
def connections(self, kind='inet'):
return net_connections(kind, _pid=self.pid)
@wrap_exceptions
def nice_get(self):
value = cext.proc_priority_get(self.pid)
if enum is not None:
value = Priority(value)
return value
@wrap_exceptions
def nice_set(self, value):
return cext.proc_priority_set(self.pid, value)
@wrap_exceptions
def ionice_get(self):
ret = cext.proc_io_priority_get(self.pid)
if enum is not None:
ret = IOPriority(ret)
return ret
@wrap_exceptions
def ionice_set(self, ioclass, value):
if value:
raise TypeError("value argument not accepted on Windows")
if ioclass not in (IOPRIO_VERYLOW, IOPRIO_LOW, IOPRIO_NORMAL,
IOPRIO_HIGH):
raise ValueError("%s is not a valid priority" % ioclass)
cext.proc_io_priority_set(self.pid, ioclass)
@wrap_exceptions
def io_counters(self):
try:
ret = cext.proc_io_counters(self.pid)
except OSError as err:
if not is_permission_err(err):
raise
info = self._proc_info()
ret = (
info[pinfo_map['io_rcount']],
info[pinfo_map['io_wcount']],
info[pinfo_map['io_rbytes']],
info[pinfo_map['io_wbytes']],
info[pinfo_map['io_count_others']],
info[pinfo_map['io_bytes_others']],
)
return pio(*ret)
@wrap_exceptions
def status(self):
suspended = cext.proc_is_suspended(self.pid)
if suspended:
return _common.STATUS_STOPPED
else:
return _common.STATUS_RUNNING
@wrap_exceptions
def cpu_affinity_get(self):
def from_bitmask(x):
return [i for i in xrange(64) if (1 << i) & x]
bitmask = cext.proc_cpu_affinity_get(self.pid)
return from_bitmask(bitmask)
@wrap_exceptions
def cpu_affinity_set(self, value):
def to_bitmask(l):
if not l:
raise ValueError("invalid argument %r" % l)
out = 0
for b in l:
out |= 2 ** b
return out
# SetProcessAffinityMask() states that ERROR_INVALID_PARAMETER
# is returned for an invalid CPU but this seems not to be true,
# therefore we check CPUs validy beforehand.
allcpus = list(range(len(per_cpu_times())))
for cpu in value:
if cpu not in allcpus:
if not isinstance(cpu, (int, long)):
raise TypeError(
"invalid CPU %r; an integer is required" % cpu)
else:
raise ValueError("invalid CPU %r" % cpu)
bitmask = to_bitmask(value)
cext.proc_cpu_affinity_set(self.pid, bitmask)
@wrap_exceptions
def num_handles(self):
try:
return cext.proc_num_handles(self.pid)
except OSError as err:
if is_permission_err(err):
return self._proc_info()[pinfo_map['num_handles']]
raise
@wrap_exceptions
def num_ctx_switches(self):
ctx_switches = self._proc_info()[pinfo_map['ctx_switches']]
# only voluntary ctx switches are supported
return _common.pctxsw(ctx_switches, 0)
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