754 lines
25 KiB
Python
754 lines
25 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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"""Sun OS Solaris platform implementation."""
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import errno
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import functools
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import os
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import socket
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import subprocess
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import sys
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from collections import namedtuple
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from socket import AF_INET
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from . import _common
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from . import _psposix
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from . import _psutil_posix as cext_posix
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from . import _psutil_sunos as cext
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from ._common import AF_INET6
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from ._common import AccessDenied
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from ._common import NoSuchProcess
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from ._common import ZombieProcess
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from ._common import debug
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from ._common import get_procfs_path
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from ._common import isfile_strict
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from ._common import memoize_when_activated
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from ._common import sockfam_to_enum
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from ._common import socktype_to_enum
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from ._common import usage_percent
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from ._compat import PY3
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from ._compat import FileNotFoundError
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from ._compat import PermissionError
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from ._compat import ProcessLookupError
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from ._compat import b
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__extra__all__ = ["CONN_IDLE", "CONN_BOUND", "PROCFS_PATH"]
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# =====================================================================
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# --- globals
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# =====================================================================
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PAGE_SIZE = cext_posix.getpagesize()
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AF_LINK = cext_posix.AF_LINK
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IS_64_BIT = sys.maxsize > 2**32
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CONN_IDLE = "IDLE"
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CONN_BOUND = "BOUND"
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PROC_STATUSES = {
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cext.SSLEEP: _common.STATUS_SLEEPING,
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cext.SRUN: _common.STATUS_RUNNING,
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cext.SZOMB: _common.STATUS_ZOMBIE,
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cext.SSTOP: _common.STATUS_STOPPED,
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cext.SIDL: _common.STATUS_IDLE,
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cext.SONPROC: _common.STATUS_RUNNING, # same as run
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cext.SWAIT: _common.STATUS_WAITING,
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}
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TCP_STATUSES = {
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cext.TCPS_ESTABLISHED: _common.CONN_ESTABLISHED,
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cext.TCPS_SYN_SENT: _common.CONN_SYN_SENT,
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cext.TCPS_SYN_RCVD: _common.CONN_SYN_RECV,
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cext.TCPS_FIN_WAIT_1: _common.CONN_FIN_WAIT1,
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cext.TCPS_FIN_WAIT_2: _common.CONN_FIN_WAIT2,
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cext.TCPS_TIME_WAIT: _common.CONN_TIME_WAIT,
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cext.TCPS_CLOSED: _common.CONN_CLOSE,
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cext.TCPS_CLOSE_WAIT: _common.CONN_CLOSE_WAIT,
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cext.TCPS_LAST_ACK: _common.CONN_LAST_ACK,
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cext.TCPS_LISTEN: _common.CONN_LISTEN,
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cext.TCPS_CLOSING: _common.CONN_CLOSING,
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cext.PSUTIL_CONN_NONE: _common.CONN_NONE,
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cext.TCPS_IDLE: CONN_IDLE, # sunos specific
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cext.TCPS_BOUND: CONN_BOUND, # sunos specific
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}
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proc_info_map = dict(
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ppid=0,
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rss=1,
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vms=2,
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create_time=3,
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nice=4,
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num_threads=5,
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status=6,
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ttynr=7,
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uid=8,
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euid=9,
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gid=10,
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egid=11,
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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', ['user', 'system', 'idle', 'iowait'])
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# psutil.cpu_times(percpu=True)
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pcputimes = namedtuple(
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'pcputimes', ['user', 'system', 'children_user', 'children_system']
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)
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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('pmem', ['rss', 'vms'])
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pfullmem = pmem
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# psutil.Process.memory_maps(grouped=True)
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pmmap_grouped = namedtuple(
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'pmmap_grouped', ['path', 'rss', 'anonymous', 'locked']
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)
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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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)
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# =====================================================================
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# --- memory
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# =====================================================================
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def virtual_memory():
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"""Report virtual memory metrics."""
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# we could have done this with kstat, but IMHO this is good enough
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total = os.sysconf('SC_PHYS_PAGES') * PAGE_SIZE
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# note: there's no difference on Solaris
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free = avail = os.sysconf('SC_AVPHYS_PAGES') * PAGE_SIZE
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used = total - free
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percent = usage_percent(used, 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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"""Report swap memory metrics."""
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sin, sout = cext.swap_mem()
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# XXX
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# we are supposed to get total/free by doing so:
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# http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/
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# usr/src/cmd/swap/swap.c
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# ...nevertheless I can't manage to obtain the same numbers as 'swap'
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# cmdline utility, so let's parse its output (sigh!)
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p = subprocess.Popen(
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[
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'/usr/bin/env',
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'PATH=/usr/sbin:/sbin:%s' % os.environ['PATH'],
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'swap',
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'-l',
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],
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stdout=subprocess.PIPE,
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)
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stdout, _ = p.communicate()
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if PY3:
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stdout = stdout.decode(sys.stdout.encoding)
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if p.returncode != 0:
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raise RuntimeError("'swap -l' failed (retcode=%s)" % p.returncode)
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lines = stdout.strip().split('\n')[1:]
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if not lines:
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msg = 'no swap device(s) configured'
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raise RuntimeError(msg)
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total = free = 0
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for line in lines:
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line = line.split()
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t, f = line[3:5]
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total += int(int(t) * 512)
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free += int(int(f) * 512)
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used = total - free
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percent = usage_percent(used, total, round_=1)
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return _common.sswap(
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total, used, free, percent, sin * PAGE_SIZE, sout * PAGE_SIZE
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)
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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-wide CPU times as a named tuple."""
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ret = cext.per_cpu_times()
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return scputimes(*[sum(x) for x in zip(*ret)])
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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 = cext.per_cpu_times()
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return [scputimes(*x) for x in 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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try:
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return os.sysconf("SC_NPROCESSORS_ONLN")
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except ValueError:
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# mimic os.cpu_count() behavior
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return None
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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 various CPU stats as a named tuple."""
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ctx_switches, interrupts, syscalls, _traps = cext.cpu_stats()
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soft_interrupts = 0
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return _common.scpustats(
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ctx_switches, interrupts, soft_interrupts, syscalls
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)
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# =====================================================================
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# --- disks
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# =====================================================================
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disk_io_counters = cext.disk_io_counters
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disk_usage = _psposix.disk_usage
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def disk_partitions(all=False):
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"""Return system disk partitions."""
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# TODO - the filtering logic should be better checked so that
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# it tries to reflect 'df' as much as possible
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retlist = []
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partitions = cext.disk_partitions()
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for partition in partitions:
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device, mountpoint, fstype, opts = partition
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if device == 'none':
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device = ''
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if not all:
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# Differently from, say, Linux, we don't have a list of
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# common fs types so the best we can do, AFAIK, is to
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# filter by filesystem having a total size > 0.
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try:
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if not disk_usage(mountpoint).total:
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continue
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except OSError as err:
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# https://github.com/giampaolo/psutil/issues/1674
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debug("skipping %r: %s" % (mountpoint, err))
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continue
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ntuple = _common.sdiskpart(device, mountpoint, fstype, opts)
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retlist.append(ntuple)
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return retlist
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# =====================================================================
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# --- network
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# =====================================================================
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net_io_counters = cext.net_io_counters
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net_if_addrs = cext_posix.net_if_addrs
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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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Only INET sockets are returned (UNIX are not).
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"""
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cmap = _common.conn_tmap.copy()
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if _pid == -1:
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cmap.pop('unix', 0)
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if kind not in cmap:
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raise ValueError(
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"invalid %r kind argument; choose between %s"
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% (kind, ', '.join([repr(x) for x in cmap]))
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)
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families, types = _common.conn_tmap[kind]
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rawlist = cext.net_connections(_pid)
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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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if fam not in families:
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continue
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if type_ not in types:
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continue
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# TODO: refactor and use _common.conn_to_ntuple.
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if fam in (AF_INET, AF_INET6):
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if laddr:
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laddr = _common.addr(*laddr)
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if raddr:
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raddr = _common.addr(*raddr)
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status = TCP_STATUSES[status]
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fam = sockfam_to_enum(fam)
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type_ = socktype_to_enum(type_)
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if _pid == -1:
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nt = _common.sconn(fd, fam, type_, laddr, raddr, status, pid)
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else:
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nt = _common.pconn(fd, fam, type_, laddr, raddr, status)
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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 = cext.net_if_stats()
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for name, items in ret.items():
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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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# =====================================================================
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# --- other system functions
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# =====================================================================
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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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return cext.boot_time()
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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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localhost = (':0.0', ':0')
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for item in rawlist:
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user, tty, hostname, tstamp, user_process, pid = item
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# note: the underlying C function includes entries about
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# system boot, run level and others. We might want
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# to use them in the future.
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if not user_process:
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continue
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if hostname in localhost:
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hostname = 'localhost'
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nt = _common.suser(user, tty, hostname, tstamp, pid)
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retlist.append(nt)
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return retlist
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# =====================================================================
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# --- processes
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# =====================================================================
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def pids():
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"""Returns a list of PIDs currently running on the system."""
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return [int(x) for x in os.listdir(b(get_procfs_path())) if x.isdigit()]
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def pid_exists(pid):
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"""Check for the existence of a unix pid."""
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return _psposix.pid_exists(pid)
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def wrap_exceptions(fun):
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"""Call callable into a try/except clause and translate ENOENT,
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EACCES and EPERM in NoSuchProcess or AccessDenied exceptions.
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"""
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@functools.wraps(fun)
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def wrapper(self, *args, **kwargs):
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try:
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return fun(self, *args, **kwargs)
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except (FileNotFoundError, ProcessLookupError):
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# ENOENT (no such file or directory) gets raised on open().
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# ESRCH (no such process) can get raised on read() if
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# process is gone in meantime.
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if not pid_exists(self.pid):
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raise NoSuchProcess(self.pid, self._name)
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else:
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raise ZombieProcess(self.pid, self._name, self._ppid)
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except PermissionError:
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raise AccessDenied(self.pid, self._name)
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except OSError:
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if self.pid == 0:
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if 0 in pids():
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raise AccessDenied(self.pid, self._name)
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else:
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raise
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raise
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return wrapper
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class Process:
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"""Wrapper class around underlying C implementation."""
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__slots__ = ["pid", "_name", "_ppid", "_procfs_path", "_cache"]
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def __init__(self, pid):
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self.pid = pid
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self._name = None
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self._ppid = None
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self._procfs_path = get_procfs_path()
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def _assert_alive(self):
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"""Raise NSP if the process disappeared on us."""
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# For those C function who do not raise NSP, possibly returning
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# incorrect or incomplete result.
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os.stat('%s/%s' % (self._procfs_path, self.pid))
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def oneshot_enter(self):
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self._proc_name_and_args.cache_activate(self)
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self._proc_basic_info.cache_activate(self)
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self._proc_cred.cache_activate(self)
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def oneshot_exit(self):
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self._proc_name_and_args.cache_deactivate(self)
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self._proc_basic_info.cache_deactivate(self)
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self._proc_cred.cache_deactivate(self)
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@wrap_exceptions
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@memoize_when_activated
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def _proc_name_and_args(self):
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return cext.proc_name_and_args(self.pid, self._procfs_path)
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@wrap_exceptions
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@memoize_when_activated
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def _proc_basic_info(self):
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if self.pid == 0 and not os.path.exists(
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'%s/%s/psinfo' % (self._procfs_path, self.pid)
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):
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raise AccessDenied(self.pid)
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ret = cext.proc_basic_info(self.pid, self._procfs_path)
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assert len(ret) == len(proc_info_map)
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return ret
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@wrap_exceptions
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@memoize_when_activated
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def _proc_cred(self):
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return cext.proc_cred(self.pid, self._procfs_path)
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@wrap_exceptions
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def name(self):
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# note: max len == 15
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return self._proc_name_and_args()[0]
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@wrap_exceptions
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def exe(self):
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try:
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return os.readlink(
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"%s/%s/path/a.out" % (self._procfs_path, self.pid)
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)
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except OSError:
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pass # continue and guess the exe name from the cmdline
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# Will be guessed later from cmdline but we want to explicitly
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# invoke cmdline here in order to get an AccessDenied
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# exception if the user has not enough privileges.
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self.cmdline()
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return ""
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@wrap_exceptions
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def cmdline(self):
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return self._proc_name_and_args()[1].split(' ')
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@wrap_exceptions
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def environ(self):
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return cext.proc_environ(self.pid, self._procfs_path)
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@wrap_exceptions
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def create_time(self):
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return self._proc_basic_info()[proc_info_map['create_time']]
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@wrap_exceptions
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def num_threads(self):
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return self._proc_basic_info()[proc_info_map['num_threads']]
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@wrap_exceptions
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def nice_get(self):
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# Note #1: getpriority(3) doesn't work for realtime processes.
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# Psinfo is what ps uses, see:
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# https://github.com/giampaolo/psutil/issues/1194
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return self._proc_basic_info()[proc_info_map['nice']]
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@wrap_exceptions
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def nice_set(self, value):
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if self.pid in (2, 3):
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# Special case PIDs: internally setpriority(3) return ESRCH
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# (no such process), no matter what.
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# The process actually exists though, as it has a name,
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# creation time, etc.
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raise AccessDenied(self.pid, self._name)
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return cext_posix.setpriority(self.pid, value)
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@wrap_exceptions
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def ppid(self):
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self._ppid = self._proc_basic_info()[proc_info_map['ppid']]
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return self._ppid
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@wrap_exceptions
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def uids(self):
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try:
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real, effective, saved, _, _, _ = self._proc_cred()
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except AccessDenied:
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real = self._proc_basic_info()[proc_info_map['uid']]
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effective = self._proc_basic_info()[proc_info_map['euid']]
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saved = None
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return _common.puids(real, effective, saved)
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@wrap_exceptions
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def gids(self):
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try:
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_, _, _, real, effective, saved = self._proc_cred()
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except AccessDenied:
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real = self._proc_basic_info()[proc_info_map['gid']]
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effective = self._proc_basic_info()[proc_info_map['egid']]
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saved = None
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return _common.puids(real, effective, saved)
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@wrap_exceptions
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def cpu_times(self):
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try:
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times = cext.proc_cpu_times(self.pid, self._procfs_path)
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except OSError as err:
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if err.errno == errno.EOVERFLOW and not IS_64_BIT:
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|
# We may get here if we attempt to query a 64bit process
|
|
# with a 32bit python.
|
|
# Error originates from read() and also tools like "cat"
|
|
# fail in the same way (!).
|
|
# Since there simply is no way to determine CPU times we
|
|
# return 0.0 as a fallback. See:
|
|
# https://github.com/giampaolo/psutil/issues/857
|
|
times = (0.0, 0.0, 0.0, 0.0)
|
|
else:
|
|
raise
|
|
return _common.pcputimes(*times)
|
|
|
|
@wrap_exceptions
|
|
def cpu_num(self):
|
|
return cext.proc_cpu_num(self.pid, self._procfs_path)
|
|
|
|
@wrap_exceptions
|
|
def terminal(self):
|
|
procfs_path = self._procfs_path
|
|
hit_enoent = False
|
|
tty = wrap_exceptions(self._proc_basic_info()[proc_info_map['ttynr']])
|
|
if tty != cext.PRNODEV:
|
|
for x in (0, 1, 2, 255):
|
|
try:
|
|
return os.readlink(
|
|
'%s/%d/path/%d' % (procfs_path, self.pid, x)
|
|
)
|
|
except FileNotFoundError:
|
|
hit_enoent = True
|
|
continue
|
|
if hit_enoent:
|
|
self._assert_alive()
|
|
|
|
@wrap_exceptions
|
|
def cwd(self):
|
|
# /proc/PID/path/cwd may not be resolved by readlink() even if
|
|
# it exists (ls shows it). If that's the case and the process
|
|
# is still alive return None (we can return None also on BSD).
|
|
# Reference: http://goo.gl/55XgO
|
|
procfs_path = self._procfs_path
|
|
try:
|
|
return os.readlink("%s/%s/path/cwd" % (procfs_path, self.pid))
|
|
except FileNotFoundError:
|
|
os.stat("%s/%s" % (procfs_path, self.pid)) # raise NSP or AD
|
|
return ""
|
|
|
|
@wrap_exceptions
|
|
def memory_info(self):
|
|
ret = self._proc_basic_info()
|
|
rss = ret[proc_info_map['rss']] * 1024
|
|
vms = ret[proc_info_map['vms']] * 1024
|
|
return pmem(rss, vms)
|
|
|
|
memory_full_info = memory_info
|
|
|
|
@wrap_exceptions
|
|
def status(self):
|
|
code = self._proc_basic_info()[proc_info_map['status']]
|
|
# XXX is '?' legit? (we're not supposed to return it anyway)
|
|
return PROC_STATUSES.get(code, '?')
|
|
|
|
@wrap_exceptions
|
|
def threads(self):
|
|
procfs_path = self._procfs_path
|
|
ret = []
|
|
tids = os.listdir('%s/%d/lwp' % (procfs_path, self.pid))
|
|
hit_enoent = False
|
|
for tid in tids:
|
|
tid = int(tid)
|
|
try:
|
|
utime, stime = cext.query_process_thread(
|
|
self.pid, tid, procfs_path
|
|
)
|
|
except EnvironmentError as err:
|
|
if err.errno == errno.EOVERFLOW and not IS_64_BIT:
|
|
# We may get here if we attempt to query a 64bit process
|
|
# with a 32bit python.
|
|
# Error originates from read() and also tools like "cat"
|
|
# fail in the same way (!).
|
|
# Since there simply is no way to determine CPU times we
|
|
# return 0.0 as a fallback. See:
|
|
# https://github.com/giampaolo/psutil/issues/857
|
|
continue
|
|
# ENOENT == thread gone in meantime
|
|
if err.errno == errno.ENOENT:
|
|
hit_enoent = True
|
|
continue
|
|
raise
|
|
else:
|
|
nt = _common.pthread(tid, utime, stime)
|
|
ret.append(nt)
|
|
if hit_enoent:
|
|
self._assert_alive()
|
|
return ret
|
|
|
|
@wrap_exceptions
|
|
def open_files(self):
|
|
retlist = []
|
|
hit_enoent = False
|
|
procfs_path = self._procfs_path
|
|
pathdir = '%s/%d/path' % (procfs_path, self.pid)
|
|
for fd in os.listdir('%s/%d/fd' % (procfs_path, self.pid)):
|
|
path = os.path.join(pathdir, fd)
|
|
if os.path.islink(path):
|
|
try:
|
|
file = os.readlink(path)
|
|
except FileNotFoundError:
|
|
hit_enoent = True
|
|
continue
|
|
else:
|
|
if isfile_strict(file):
|
|
retlist.append(_common.popenfile(file, int(fd)))
|
|
if hit_enoent:
|
|
self._assert_alive()
|
|
return retlist
|
|
|
|
def _get_unix_sockets(self, pid):
|
|
"""Get UNIX sockets used by process by parsing 'pfiles' output."""
|
|
# TODO: rewrite this in C (...but the damn netstat source code
|
|
# does not include this part! Argh!!)
|
|
cmd = ["pfiles", str(pid)]
|
|
p = subprocess.Popen(
|
|
cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE
|
|
)
|
|
stdout, stderr = p.communicate()
|
|
if PY3:
|
|
stdout, stderr = (
|
|
x.decode(sys.stdout.encoding) for x in (stdout, stderr)
|
|
)
|
|
if p.returncode != 0:
|
|
if 'permission denied' in stderr.lower():
|
|
raise AccessDenied(self.pid, self._name)
|
|
if 'no such process' in stderr.lower():
|
|
raise NoSuchProcess(self.pid, self._name)
|
|
raise RuntimeError("%r command error\n%s" % (cmd, stderr))
|
|
|
|
lines = stdout.split('\n')[2:]
|
|
for i, line in enumerate(lines):
|
|
line = line.lstrip()
|
|
if line.startswith('sockname: AF_UNIX'):
|
|
path = line.split(' ', 2)[2]
|
|
type = lines[i - 2].strip()
|
|
if type == 'SOCK_STREAM':
|
|
type = socket.SOCK_STREAM
|
|
elif type == 'SOCK_DGRAM':
|
|
type = socket.SOCK_DGRAM
|
|
else:
|
|
type = -1
|
|
yield (-1, socket.AF_UNIX, type, path, "", _common.CONN_NONE)
|
|
|
|
@wrap_exceptions
|
|
def net_connections(self, kind='inet'):
|
|
ret = net_connections(kind, _pid=self.pid)
|
|
# The underlying C implementation retrieves all OS connections
|
|
# and filters them by PID. At this point we can't tell whether
|
|
# an empty list means there were no connections for process or
|
|
# process is no longer active so we force NSP in case the PID
|
|
# is no longer there.
|
|
if not ret:
|
|
# will raise NSP if process is gone
|
|
os.stat('%s/%s' % (self._procfs_path, self.pid))
|
|
|
|
# UNIX sockets
|
|
if kind in ('all', 'unix'):
|
|
ret.extend([
|
|
_common.pconn(*conn)
|
|
for conn in self._get_unix_sockets(self.pid)
|
|
])
|
|
return ret
|
|
|
|
nt_mmap_grouped = namedtuple('mmap', 'path rss anon locked')
|
|
nt_mmap_ext = namedtuple('mmap', 'addr perms path rss anon locked')
|
|
|
|
@wrap_exceptions
|
|
def memory_maps(self):
|
|
def toaddr(start, end):
|
|
return '%s-%s' % (
|
|
hex(start)[2:].strip('L'),
|
|
hex(end)[2:].strip('L'),
|
|
)
|
|
|
|
procfs_path = self._procfs_path
|
|
retlist = []
|
|
try:
|
|
rawlist = cext.proc_memory_maps(self.pid, procfs_path)
|
|
except OSError as err:
|
|
if err.errno == errno.EOVERFLOW and not IS_64_BIT:
|
|
# We may get here if we attempt to query a 64bit process
|
|
# with a 32bit python.
|
|
# Error originates from read() and also tools like "cat"
|
|
# fail in the same way (!).
|
|
# Since there simply is no way to determine CPU times we
|
|
# return 0.0 as a fallback. See:
|
|
# https://github.com/giampaolo/psutil/issues/857
|
|
return []
|
|
else:
|
|
raise
|
|
hit_enoent = False
|
|
for item in rawlist:
|
|
addr, addrsize, perm, name, rss, anon, locked = item
|
|
addr = toaddr(addr, addrsize)
|
|
if not name.startswith('['):
|
|
try:
|
|
name = os.readlink(
|
|
'%s/%s/path/%s' % (procfs_path, self.pid, name)
|
|
)
|
|
except OSError as err:
|
|
if err.errno == errno.ENOENT:
|
|
# sometimes the link may not be resolved by
|
|
# readlink() even if it exists (ls shows it).
|
|
# If that's the case we just return the
|
|
# unresolved link path.
|
|
# This seems an inconsistency with /proc similar
|
|
# to: http://goo.gl/55XgO
|
|
name = '%s/%s/path/%s' % (procfs_path, self.pid, name)
|
|
hit_enoent = True
|
|
else:
|
|
raise
|
|
retlist.append((addr, perm, name, rss, anon, locked))
|
|
if hit_enoent:
|
|
self._assert_alive()
|
|
return retlist
|
|
|
|
@wrap_exceptions
|
|
def num_fds(self):
|
|
return len(os.listdir("%s/%s/fd" % (self._procfs_path, self.pid)))
|
|
|
|
@wrap_exceptions
|
|
def num_ctx_switches(self):
|
|
return _common.pctxsw(
|
|
*cext.proc_num_ctx_switches(self.pid, self._procfs_path)
|
|
)
|
|
|
|
@wrap_exceptions
|
|
def wait(self, timeout=None):
|
|
return _psposix.wait_pid(self.pid, timeout, self._name)
|