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1121 lines
37 KiB
Python
1121 lines
37 KiB
Python
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Windows platform implementation."""
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import contextlib
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import errno
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import functools
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import os
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import signal
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import sys
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import time
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from collections import namedtuple
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from . import _common
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from ._common import ENCODING
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from ._common import ENCODING_ERRS
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from ._common import AccessDenied
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from ._common import NoSuchProcess
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from ._common import TimeoutExpired
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from ._common import conn_tmap
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from ._common import conn_to_ntuple
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from ._common import debug
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from ._common import isfile_strict
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from ._common import memoize
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from ._common import memoize_when_activated
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from ._common import parse_environ_block
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from ._common import usage_percent
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from ._compat import PY3
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from ._compat import long
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from ._compat import lru_cache
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from ._compat import range
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from ._compat import unicode
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from ._psutil_windows import ABOVE_NORMAL_PRIORITY_CLASS
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from ._psutil_windows import BELOW_NORMAL_PRIORITY_CLASS
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from ._psutil_windows import HIGH_PRIORITY_CLASS
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from ._psutil_windows import IDLE_PRIORITY_CLASS
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from ._psutil_windows import NORMAL_PRIORITY_CLASS
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from ._psutil_windows import REALTIME_PRIORITY_CLASS
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try:
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from . import _psutil_windows as cext
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except ImportError as err:
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if str(err).lower().startswith("dll load failed") and \
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sys.getwindowsversion()[0] < 6:
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# We may get here if:
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# 1) we are on an old Windows version
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# 2) psutil was installed via pip + wheel
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# See: https://github.com/giampaolo/psutil/issues/811
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msg = "this Windows version is too old (< Windows Vista); "
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msg += "psutil 3.4.2 is the latest version which supports Windows "
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msg += "2000, XP and 2003 server"
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raise RuntimeError(msg)
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else:
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raise
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if sys.version_info >= (3, 4):
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import enum
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else:
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enum = None
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# process priority constants, import from __init__.py:
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# http://msdn.microsoft.com/en-us/library/ms686219(v=vs.85).aspx
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__extra__all__ = [
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"win_service_iter", "win_service_get",
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# Process priority
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"ABOVE_NORMAL_PRIORITY_CLASS", "BELOW_NORMAL_PRIORITY_CLASS",
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"HIGH_PRIORITY_CLASS", "IDLE_PRIORITY_CLASS", "NORMAL_PRIORITY_CLASS",
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"REALTIME_PRIORITY_CLASS",
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# IO priority
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"IOPRIO_VERYLOW", "IOPRIO_LOW", "IOPRIO_NORMAL", "IOPRIO_HIGH",
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# others
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"CONN_DELETE_TCB", "AF_LINK",
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]
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# =====================================================================
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# --- globals
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# =====================================================================
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CONN_DELETE_TCB = "DELETE_TCB"
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ERROR_PARTIAL_COPY = 299
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PYPY = '__pypy__' in sys.builtin_module_names
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if enum is None:
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AF_LINK = -1
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else:
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AddressFamily = enum.IntEnum('AddressFamily', {'AF_LINK': -1})
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AF_LINK = AddressFamily.AF_LINK
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TCP_STATUSES = {
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cext.MIB_TCP_STATE_ESTAB: _common.CONN_ESTABLISHED,
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cext.MIB_TCP_STATE_SYN_SENT: _common.CONN_SYN_SENT,
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cext.MIB_TCP_STATE_SYN_RCVD: _common.CONN_SYN_RECV,
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cext.MIB_TCP_STATE_FIN_WAIT1: _common.CONN_FIN_WAIT1,
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cext.MIB_TCP_STATE_FIN_WAIT2: _common.CONN_FIN_WAIT2,
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cext.MIB_TCP_STATE_TIME_WAIT: _common.CONN_TIME_WAIT,
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cext.MIB_TCP_STATE_CLOSED: _common.CONN_CLOSE,
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cext.MIB_TCP_STATE_CLOSE_WAIT: _common.CONN_CLOSE_WAIT,
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cext.MIB_TCP_STATE_LAST_ACK: _common.CONN_LAST_ACK,
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cext.MIB_TCP_STATE_LISTEN: _common.CONN_LISTEN,
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cext.MIB_TCP_STATE_CLOSING: _common.CONN_CLOSING,
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cext.MIB_TCP_STATE_DELETE_TCB: CONN_DELETE_TCB,
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cext.PSUTIL_CONN_NONE: _common.CONN_NONE,
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}
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if enum is not None:
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class Priority(enum.IntEnum):
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ABOVE_NORMAL_PRIORITY_CLASS = ABOVE_NORMAL_PRIORITY_CLASS
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BELOW_NORMAL_PRIORITY_CLASS = BELOW_NORMAL_PRIORITY_CLASS
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HIGH_PRIORITY_CLASS = HIGH_PRIORITY_CLASS
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IDLE_PRIORITY_CLASS = IDLE_PRIORITY_CLASS
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NORMAL_PRIORITY_CLASS = NORMAL_PRIORITY_CLASS
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REALTIME_PRIORITY_CLASS = REALTIME_PRIORITY_CLASS
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globals().update(Priority.__members__)
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if enum is None:
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IOPRIO_VERYLOW = 0
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IOPRIO_LOW = 1
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IOPRIO_NORMAL = 2
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IOPRIO_HIGH = 3
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else:
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class IOPriority(enum.IntEnum):
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IOPRIO_VERYLOW = 0
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IOPRIO_LOW = 1
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IOPRIO_NORMAL = 2
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IOPRIO_HIGH = 3
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globals().update(IOPriority.__members__)
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pinfo_map = dict(
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num_handles=0,
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ctx_switches=1,
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user_time=2,
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kernel_time=3,
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create_time=4,
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num_threads=5,
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io_rcount=6,
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io_wcount=7,
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io_rbytes=8,
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io_wbytes=9,
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io_count_others=10,
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io_bytes_others=11,
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num_page_faults=12,
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peak_wset=13,
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wset=14,
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peak_paged_pool=15,
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paged_pool=16,
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peak_non_paged_pool=17,
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non_paged_pool=18,
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pagefile=19,
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peak_pagefile=20,
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mem_private=21,
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)
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# =====================================================================
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# --- named tuples
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# =====================================================================
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# psutil.cpu_times()
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scputimes = namedtuple('scputimes',
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['user', 'system', 'idle', 'interrupt', 'dpc'])
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# psutil.virtual_memory()
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svmem = namedtuple('svmem', ['total', 'available', 'percent', 'used', 'free'])
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# psutil.Process.memory_info()
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pmem = namedtuple(
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'pmem', ['rss', 'vms',
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'num_page_faults', 'peak_wset', 'wset', 'peak_paged_pool',
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'paged_pool', 'peak_nonpaged_pool', 'nonpaged_pool',
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'pagefile', 'peak_pagefile', 'private'])
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# psutil.Process.memory_full_info()
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pfullmem = namedtuple('pfullmem', pmem._fields + ('uss', ))
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# psutil.Process.memory_maps(grouped=True)
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pmmap_grouped = namedtuple('pmmap_grouped', ['path', 'rss'])
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# psutil.Process.memory_maps(grouped=False)
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pmmap_ext = namedtuple(
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'pmmap_ext', 'addr perms ' + ' '.join(pmmap_grouped._fields))
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# psutil.Process.io_counters()
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pio = namedtuple('pio', ['read_count', 'write_count',
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'read_bytes', 'write_bytes',
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'other_count', 'other_bytes'])
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# =====================================================================
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# --- utils
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# =====================================================================
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@lru_cache(maxsize=512)
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def convert_dos_path(s):
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r"""Convert paths using native DOS format like:
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"\Device\HarddiskVolume1\Windows\systemew\file.txt"
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into:
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"C:\Windows\systemew\file.txt"
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"""
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rawdrive = '\\'.join(s.split('\\')[:3])
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driveletter = cext.QueryDosDevice(rawdrive)
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remainder = s[len(rawdrive):]
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return os.path.join(driveletter, remainder)
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def py2_strencode(s):
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"""Encode a unicode string to a byte string by using the default fs
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encoding + "replace" error handler.
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"""
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if PY3:
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return s
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else:
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if isinstance(s, str):
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return s
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else:
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return s.encode(ENCODING, ENCODING_ERRS)
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@memoize
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def getpagesize():
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return cext.getpagesize()
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# =====================================================================
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# --- memory
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# =====================================================================
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def virtual_memory():
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"""System virtual memory as a namedtuple."""
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mem = cext.virtual_mem()
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totphys, availphys, totsys, availsys = mem
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#
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total = totphys
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avail = availphys
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free = availphys
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used = total - avail
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percent = usage_percent((total - avail), total, round_=1)
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return svmem(total, avail, percent, used, free)
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def swap_memory():
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"""Swap system memory as a (total, used, free, sin, sout) tuple."""
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mem = cext.virtual_mem()
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total_phys = mem[0]
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total_system = mem[2]
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# system memory (commit total/limit) is the sum of physical and swap
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# thus physical memory values need to be substracted to get swap values
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total = total_system - total_phys
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# commit total is incremented immediately (decrementing free_system)
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# while the corresponding free physical value is not decremented until
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# pages are accessed, so we can't use free system memory for swap.
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# instead, we calculate page file usage based on performance counter
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if (total > 0):
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percentswap = cext.getpercentswap()
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used = int(0.01 * percentswap * total)
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else:
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used = 0
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free = total - used
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percent = usage_percent(used, total, round_=1)
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return _common.sswap(total, used, free, percent, 0, 0)
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# =====================================================================
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# --- disk
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# =====================================================================
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disk_io_counters = cext.disk_io_counters
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def disk_usage(path):
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"""Return disk usage associated with path."""
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if PY3 and isinstance(path, bytes):
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# XXX: do we want to use "strict"? Probably yes, in order
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# to fail immediately. After all we are accepting input here...
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path = path.decode(ENCODING, errors="strict")
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total, free = cext.disk_usage(path)
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used = total - free
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percent = usage_percent(used, total, round_=1)
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return _common.sdiskusage(total, used, free, percent)
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def disk_partitions(all):
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"""Return disk partitions."""
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rawlist = cext.disk_partitions(all)
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return [_common.sdiskpart(*x) for x in rawlist]
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# =====================================================================
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# --- CPU
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# =====================================================================
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def cpu_times():
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"""Return system CPU times as a named tuple."""
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user, system, idle = cext.cpu_times()
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# Internally, GetSystemTimes() is used, and it doesn't return
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# interrupt and dpc times. cext.per_cpu_times() does, so we
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# rely on it to get those only.
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percpu_summed = scputimes(*[sum(n) for n in zip(*cext.per_cpu_times())])
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return scputimes(user, system, idle,
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percpu_summed.interrupt, percpu_summed.dpc)
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def per_cpu_times():
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"""Return system per-CPU times as a list of named tuples."""
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ret = []
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for user, system, idle, interrupt, dpc in cext.per_cpu_times():
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item = scputimes(user, system, idle, interrupt, dpc)
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ret.append(item)
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return ret
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def cpu_count_logical():
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"""Return the number of logical CPUs in the system."""
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return cext.cpu_count_logical()
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def cpu_count_cores():
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"""Return the number of CPU cores in the system."""
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return cext.cpu_count_cores()
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def cpu_stats():
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"""Return CPU statistics."""
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ctx_switches, interrupts, dpcs, syscalls = cext.cpu_stats()
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soft_interrupts = 0
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return _common.scpustats(ctx_switches, interrupts, soft_interrupts,
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syscalls)
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def cpu_freq():
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"""Return CPU frequency.
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On Windows per-cpu frequency is not supported.
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"""
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curr, max_ = cext.cpu_freq()
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min_ = 0.0
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return [_common.scpufreq(float(curr), min_, float(max_))]
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_loadavg_inititialized = False
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def getloadavg():
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"""Return the number of processes in the system run queue averaged
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over the last 1, 5, and 15 minutes respectively as a tuple"""
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global _loadavg_inititialized
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if not _loadavg_inititialized:
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cext.init_loadavg_counter()
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_loadavg_inititialized = True
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# Drop to 2 decimal points which is what Linux does
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raw_loads = cext.getloadavg()
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return tuple([round(load, 2) for load in raw_loads])
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# =====================================================================
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# --- network
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# =====================================================================
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def net_connections(kind, _pid=-1):
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"""Return socket connections. If pid == -1 return system-wide
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connections (as opposed to connections opened by one process only).
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"""
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if kind not in conn_tmap:
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raise ValueError("invalid %r kind argument; choose between %s"
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% (kind, ', '.join([repr(x) for x in conn_tmap])))
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families, types = conn_tmap[kind]
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rawlist = cext.net_connections(_pid, families, types)
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ret = set()
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for item in rawlist:
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fd, fam, type, laddr, raddr, status, pid = item
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nt = conn_to_ntuple(fd, fam, type, laddr, raddr, status, TCP_STATUSES,
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pid=pid if _pid == -1 else None)
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ret.add(nt)
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return list(ret)
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def net_if_stats():
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"""Get NIC stats (isup, duplex, speed, mtu)."""
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ret = {}
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rawdict = cext.net_if_stats()
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for name, items in rawdict.items():
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if not PY3:
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assert isinstance(name, unicode), type(name)
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name = py2_strencode(name)
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isup, duplex, speed, mtu = items
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if hasattr(_common, 'NicDuplex'):
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duplex = _common.NicDuplex(duplex)
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ret[name] = _common.snicstats(isup, duplex, speed, mtu, '')
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return ret
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def net_io_counters():
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"""Return network I/O statistics for every network interface
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installed on the system as a dict of raw tuples.
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"""
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ret = cext.net_io_counters()
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return dict([(py2_strencode(k), v) for k, v in ret.items()])
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def net_if_addrs():
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"""Return the addresses associated to each NIC."""
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ret = []
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for items in cext.net_if_addrs():
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items = list(items)
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items[0] = py2_strencode(items[0])
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ret.append(items)
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return ret
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# =====================================================================
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# --- sensors
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# =====================================================================
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def sensors_battery():
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"""Return battery information."""
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# For constants meaning see:
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# https://msdn.microsoft.com/en-us/library/windows/desktop/
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# aa373232(v=vs.85).aspx
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acline_status, flags, percent, secsleft = cext.sensors_battery()
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power_plugged = acline_status == 1
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no_battery = bool(flags & 128)
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charging = bool(flags & 8)
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if no_battery:
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return None
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if power_plugged or charging:
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secsleft = _common.POWER_TIME_UNLIMITED
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elif secsleft == -1:
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secsleft = _common.POWER_TIME_UNKNOWN
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return _common.sbattery(percent, secsleft, power_plugged)
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# =====================================================================
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# --- other system functions
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# =====================================================================
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_last_btime = 0
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def boot_time():
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"""The system boot time expressed in seconds since the epoch."""
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# This dirty hack is to adjust the precision of the returned
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# value which may have a 1 second fluctuation, see:
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# https://github.com/giampaolo/psutil/issues/1007
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global _last_btime
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ret = float(cext.boot_time())
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if abs(ret - _last_btime) <= 1:
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return _last_btime
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else:
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_last_btime = ret
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return ret
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def users():
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"""Return currently connected users as a list of namedtuples."""
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retlist = []
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rawlist = cext.users()
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for item in rawlist:
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user, hostname, tstamp = item
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user = py2_strencode(user)
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nt = _common.suser(user, None, hostname, tstamp, None)
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retlist.append(nt)
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return retlist
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# =====================================================================
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# --- Windows services
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# =====================================================================
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def win_service_iter():
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"""Yields a list of WindowsService instances."""
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for name, display_name in cext.winservice_enumerate():
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yield WindowsService(py2_strencode(name), py2_strencode(display_name))
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def win_service_get(name):
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"""Open a Windows service and return it as a WindowsService instance."""
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service = WindowsService(name, None)
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service._display_name = service._query_config()['display_name']
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return service
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class WindowsService(object):
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"""Represents an installed Windows service."""
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def __init__(self, name, display_name):
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self._name = name
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self._display_name = display_name
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def __str__(self):
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details = "(name=%r, display_name=%r)" % (
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self._name, self._display_name)
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return "%s%s" % (self.__class__.__name__, details)
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def __repr__(self):
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return "<%s at %s>" % (self.__str__(), id(self))
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def __eq__(self, other):
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# Test for equality with another WindosService object based
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# on name.
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if not isinstance(other, WindowsService):
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return NotImplemented
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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 translated 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 range(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(ls):
|
|
if not ls:
|
|
raise ValueError("invalid argument %r" % ls)
|
|
out = 0
|
|
for b in ls:
|
|
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)
|