/usr/lib/python2.7/dist-packages/psutil/_psbsd.py is in python-psutil 2.1.1-1+b1.
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# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""FreeBSD platform implementation."""
import errno
import os
import sys
from psutil import _common
from psutil import _psposix
from psutil._common import conn_tmap, usage_percent
from psutil._compat import namedtuple, wraps
import _psutil_bsd as cext
import _psutil_posix
__extra__all__ = []
# --- constants
PROC_STATUSES = {
cext.SSTOP: _common.STATUS_STOPPED,
cext.SSLEEP: _common.STATUS_SLEEPING,
cext.SRUN: _common.STATUS_RUNNING,
cext.SIDL: _common.STATUS_IDLE,
cext.SWAIT: _common.STATUS_WAITING,
cext.SLOCK: _common.STATUS_LOCKED,
cext.SZOMB: _common.STATUS_ZOMBIE,
}
TCP_STATUSES = {
cext.TCPS_ESTABLISHED: _common.CONN_ESTABLISHED,
cext.TCPS_SYN_SENT: _common.CONN_SYN_SENT,
cext.TCPS_SYN_RECEIVED: _common.CONN_SYN_RECV,
cext.TCPS_FIN_WAIT_1: _common.CONN_FIN_WAIT1,
cext.TCPS_FIN_WAIT_2: _common.CONN_FIN_WAIT2,
cext.TCPS_TIME_WAIT: _common.CONN_TIME_WAIT,
cext.TCPS_CLOSED: _common.CONN_CLOSE,
cext.TCPS_CLOSE_WAIT: _common.CONN_CLOSE_WAIT,
cext.TCPS_LAST_ACK: _common.CONN_LAST_ACK,
cext.TCPS_LISTEN: _common.CONN_LISTEN,
cext.TCPS_CLOSING: _common.CONN_CLOSING,
cext.PSUTIL_CONN_NONE: _common.CONN_NONE,
}
PAGESIZE = os.sysconf("SC_PAGE_SIZE")
# extend base mem ntuple with BSD-specific memory metrics
svmem = namedtuple(
'svmem', ['total', 'available', 'percent', 'used', 'free',
'active', 'inactive', 'buffers', 'cached', 'shared', 'wired'])
scputimes = namedtuple(
'scputimes', ['user', 'nice', 'system', 'idle', 'irq'])
pextmem = namedtuple('pextmem', ['rss', 'vms', 'text', 'data', 'stack'])
pmmap_grouped = namedtuple(
'pmmap_grouped', 'path rss, private, ref_count, shadow_count')
pmmap_ext = namedtuple(
'pmmap_ext', 'addr, perms path rss, private, ref_count, shadow_count')
# set later from __init__.py
NoSuchProcess = None
AccessDenied = None
TimeoutExpired = None
def virtual_memory():
"""System virtual memory as a namedutple."""
mem = cext.virtual_mem()
total, free, active, inactive, wired, cached, buffers, shared = mem
avail = inactive + cached + free
used = active + wired + cached
percent = usage_percent((total - avail), total, _round=1)
return svmem(total, avail, percent, used, free,
active, inactive, buffers, cached, shared, wired)
def swap_memory():
"""System swap memory as (total, used, free, sin, sout) namedtuple."""
total, used, free, sin, sout = [x * PAGESIZE for x in cext.swap_mem()]
percent = usage_percent(used, total, _round=1)
return _common.sswap(total, used, free, percent, sin, sout)
def cpu_times():
"""Return system per-CPU times as a named tuple"""
user, nice, system, idle, irq = cext.cpu_times()
return scputimes(user, nice, system, idle, irq)
if hasattr(cext, "per_cpu_times"):
def per_cpu_times():
"""Return system CPU times as a named tuple"""
ret = []
for cpu_t in cext.per_cpu_times():
user, nice, system, idle, irq = cpu_t
item = scputimes(user, nice, system, idle, irq)
ret.append(item)
return ret
else:
# XXX
# Ok, this is very dirty.
# On FreeBSD < 8 we cannot gather per-cpu information, see:
# http://code.google.com/p/psutil/issues/detail?id=226
# If num cpus > 1, on first call we return single cpu times to avoid a
# crash at psutil import time.
# Next calls will fail with NotImplementedError
def per_cpu_times():
if cpu_count_logical() == 1:
return [cpu_times()]
if per_cpu_times.__called__:
raise NotImplementedError("supported only starting from FreeBSD 8")
per_cpu_times.__called__ = True
return [cpu_times()]
per_cpu_times.__called__ = False
def cpu_count_logical():
"""Return the number of logical CPUs in the system."""
return cext.cpu_count_logical()
def cpu_count_physical():
"""Return the number of physical CPUs in the system."""
# From the C module we'll get an XML string similar to this:
# http://manpages.ubuntu.com/manpages/precise/man4/smp.4freebsd.html
# We may get None in case "sysctl kern.sched.topology_spec"
# is not supported on this BSD version, in which case we'll mimic
# os.cpu_count() and return None.
s = cext.cpu_count_phys()
if s is not None:
# get rid of padding chars appended at the end of the string
index = s.rfind("</groups>")
if index != -1:
s = s[:index + 9]
if sys.version_info >= (2, 5):
import xml.etree.ElementTree as ET
root = ET.fromstring(s)
return len(root.findall('group/children/group/cpu')) or None
else:
s = s[s.find('<children>'):]
return s.count("<cpu") or None
def boot_time():
"""The system boot time expressed in seconds since the epoch."""
return cext.boot_time()
def disk_partitions(all=False):
retlist = []
partitions = cext.disk_partitions()
for partition in partitions:
device, mountpoint, fstype, opts = partition
if device == 'none':
device = ''
if not all:
if not os.path.isabs(device) or not os.path.exists(device):
continue
ntuple = _common.sdiskpart(device, mountpoint, fstype, opts)
retlist.append(ntuple)
return retlist
def users():
retlist = []
rawlist = cext.users()
for item in rawlist:
user, tty, hostname, tstamp = item
if tty == '~':
continue # reboot or shutdown
nt = _common.suser(user, tty or None, hostname, tstamp)
retlist.append(nt)
return retlist
def net_connections(kind):
if kind not in _common.conn_tmap:
raise ValueError("invalid %r kind argument; choose between %s"
% (kind, ', '.join([repr(x) for x in conn_tmap])))
families, types = conn_tmap[kind]
ret = []
rawlist = cext.net_connections()
for item in rawlist:
fd, fam, type, laddr, raddr, status, pid = item
# TODO: apply filter at C level
if fam in families and type in types:
status = TCP_STATUSES[status]
nt = _common.sconn(fd, fam, type, laddr, raddr, status, pid)
ret.append(nt)
return ret
pids = cext.pids
pid_exists = _psposix.pid_exists
disk_usage = _psposix.disk_usage
net_io_counters = cext.net_io_counters
disk_io_counters = cext.disk_io_counters
def wrap_exceptions(fun):
"""Decorator which translates bare OSError exceptions into
NoSuchProcess and AccessDenied.
"""
@wraps(fun)
def wrapper(self, *args, **kwargs):
try:
return fun(self, *args, **kwargs)
except OSError:
# support for private module import
if NoSuchProcess is None or AccessDenied is None:
raise
err = sys.exc_info()[1]
if err.errno == errno.ESRCH:
raise NoSuchProcess(self.pid, self._name)
if err.errno in (errno.EPERM, errno.EACCES):
raise AccessDenied(self.pid, self._name)
raise
return wrapper
class Process(object):
"""Wrapper class around underlying C implementation."""
__slots__ = ["pid", "_name"]
def __init__(self, pid):
self.pid = pid
self._name = None
@wrap_exceptions
def name(self):
return cext.proc_name(self.pid)
@wrap_exceptions
def exe(self):
return cext.proc_exe(self.pid)
@wrap_exceptions
def cmdline(self):
return cext.proc_cmdline(self.pid)
@wrap_exceptions
def terminal(self):
tty_nr = cext.proc_tty_nr(self.pid)
tmap = _psposix._get_terminal_map()
try:
return tmap[tty_nr]
except KeyError:
return None
@wrap_exceptions
def ppid(self):
return cext.proc_ppid(self.pid)
@wrap_exceptions
def uids(self):
real, effective, saved = cext.proc_uids(self.pid)
return _common.puids(real, effective, saved)
@wrap_exceptions
def gids(self):
real, effective, saved = cext.proc_gids(self.pid)
return _common.pgids(real, effective, saved)
@wrap_exceptions
def cpu_times(self):
user, system = cext.proc_cpu_times(self.pid)
return _common.pcputimes(user, system)
@wrap_exceptions
def memory_info(self):
rss, vms = cext.proc_memory_info(self.pid)[:2]
return _common.pmem(rss, vms)
@wrap_exceptions
def memory_info_ex(self):
return pextmem(*cext.proc_memory_info(self.pid))
@wrap_exceptions
def create_time(self):
return cext.proc_create_time(self.pid)
@wrap_exceptions
def num_threads(self):
return cext.proc_num_threads(self.pid)
@wrap_exceptions
def num_ctx_switches(self):
return _common.pctxsw(*cext.proc_num_ctx_switches(self.pid))
@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 connections(self, kind='inet'):
if kind not in conn_tmap:
raise ValueError("invalid %r kind argument; choose between %s"
% (kind, ', '.join([repr(x) for x in conn_tmap])))
families, types = conn_tmap[kind]
rawlist = cext.proc_connections(self.pid, families, types)
ret = []
for item in rawlist:
fd, fam, type, laddr, raddr, status = item
status = TCP_STATUSES[status]
nt = _common.pconn(fd, fam, type, laddr, raddr, status)
ret.append(nt)
return ret
@wrap_exceptions
def wait(self, timeout=None):
try:
return _psposix.wait_pid(self.pid, timeout)
except _psposix.TimeoutExpired:
# support for private module import
if TimeoutExpired is None:
raise
raise TimeoutExpired(timeout, self.pid, self._name)
@wrap_exceptions
def nice_get(self):
return _psutil_posix.getpriority(self.pid)
@wrap_exceptions
def nice_set(self, value):
return _psutil_posix.setpriority(self.pid, value)
@wrap_exceptions
def status(self):
code = cext.proc_status(self.pid)
if code in PROC_STATUSES:
return PROC_STATUSES[code]
# XXX is this legit? will we even ever get here?
return "?"
@wrap_exceptions
def io_counters(self):
rc, wc, rb, wb = cext.proc_io_counters(self.pid)
return _common.pio(rc, wc, rb, wb)
nt_mmap_grouped = namedtuple(
'mmap', 'path rss, private, ref_count, shadow_count')
nt_mmap_ext = namedtuple(
'mmap', 'addr, perms path rss, private, ref_count, shadow_count')
# FreeBSD < 8 does not support functions based on kinfo_getfile()
# and kinfo_getvmmap()
if hasattr(cext, 'proc_open_files'):
@wrap_exceptions
def open_files(self):
"""Return files opened by process as a list of namedtuples."""
rawlist = cext.proc_open_files(self.pid)
return [_common.popenfile(path, fd) for path, fd in rawlist]
@wrap_exceptions
def cwd(self):
"""Return process current working directory."""
# sometimes we get an empty string, in which case we turn
# it into None
return cext.proc_cwd(self.pid) or None
@wrap_exceptions
def memory_maps(self):
return cext.proc_memory_maps(self.pid)
@wrap_exceptions
def num_fds(self):
"""Return the number of file descriptors opened by this process."""
return cext.proc_num_fds(self.pid)
else:
def _not_implemented(self):
raise NotImplementedError("supported only starting from FreeBSD 8")
open_files = _not_implemented
proc_cwd = _not_implemented
memory_maps = _not_implemented
num_fds = _not_implemented
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