| #!/usr/bin/env python |
| |
| # Copyright (c) 2009, Jay Loden, 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. |
| |
| """OSX platform implementation.""" |
| |
| import errno |
| import os |
| import sys |
| import warnings |
| |
| import _psutil_osx |
| import _psutil_posix |
| from psutil import _psposix |
| from psutil._error import AccessDenied, NoSuchProcess, TimeoutExpired |
| from psutil._compat import namedtuple, wraps |
| from psutil._common import * |
| |
| __extra__all__ = [] |
| |
| # --- constants |
| |
| # Since these constants get determined at import time we do not want to |
| # crash immediately; instead we'll set them to None and most likely |
| # we'll crash later as they're used for determining process CPU stats |
| # and creation_time |
| try: |
| NUM_CPUS = _psutil_osx.get_num_cpus() |
| except Exception: |
| NUM_CPUS = None |
| warnings.warn("couldn't determine platform's NUM_CPUS", RuntimeWarning) |
| try: |
| BOOT_TIME = _psutil_osx.get_system_boot_time() |
| except Exception: |
| BOOT_TIME = None |
| warnings.warn("couldn't determine platform's BOOT_TIME", RuntimeWarning) |
| try: |
| TOTAL_PHYMEM = _psutil_osx.get_virtual_mem()[0] |
| except Exception: |
| TOTAL_PHYMEM = None |
| warnings.warn("couldn't determine platform's TOTAL_PHYMEM", RuntimeWarning) |
| |
| _PAGESIZE = os.sysconf("SC_PAGE_SIZE") |
| _cputimes_ntuple = namedtuple('cputimes', 'user nice system idle') |
| |
| # --- functions |
| |
| get_system_boot_time = _psutil_osx.get_system_boot_time |
| |
| nt_virtmem_info = namedtuple('vmem', ' '.join([ |
| # all platforms |
| 'total', 'available', 'percent', 'used', 'free', |
| # OSX specific |
| 'active', |
| 'inactive', |
| 'wired'])) |
| |
| def virtual_memory(): |
| """System virtual memory as a namedtuple.""" |
| total, active, inactive, wired, free = _psutil_osx.get_virtual_mem() |
| avail = inactive + free |
| used = active + inactive + wired |
| percent = usage_percent((total - avail), total, _round=1) |
| return nt_virtmem_info(total, avail, percent, used, free, |
| active, inactive, wired) |
| |
| def swap_memory(): |
| """Swap system memory as a (total, used, free, sin, sout) tuple.""" |
| total, used, free, sin, sout = _psutil_osx.get_swap_mem() |
| percent = usage_percent(used, total, _round=1) |
| return nt_swapmeminfo(total, used, free, percent, sin, sout) |
| |
| def get_system_cpu_times(): |
| """Return system CPU times as a namedtuple.""" |
| user, nice, system, idle = _psutil_osx.get_system_cpu_times() |
| return _cputimes_ntuple(user, nice, system, idle) |
| |
| def get_system_per_cpu_times(): |
| """Return system CPU times as a named tuple""" |
| ret = [] |
| for cpu_t in _psutil_osx.get_system_per_cpu_times(): |
| user, nice, system, idle = cpu_t |
| item = _cputimes_ntuple(user, nice, system, idle) |
| ret.append(item) |
| return ret |
| |
| def disk_partitions(all=False): |
| retlist = [] |
| partitions = _psutil_osx.get_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 = nt_partition(device, mountpoint, fstype, opts) |
| retlist.append(ntuple) |
| return retlist |
| |
| def get_system_users(): |
| retlist = [] |
| rawlist = _psutil_osx.get_system_users() |
| for item in rawlist: |
| user, tty, hostname, tstamp = item |
| if tty == '~': |
| continue # reboot or shutdown |
| if not tstamp: |
| continue |
| nt = nt_user(user, tty or None, hostname or None, tstamp) |
| retlist.append(nt) |
| return retlist |
| |
| |
| get_pid_list = _psutil_osx.get_pid_list |
| pid_exists = _psposix.pid_exists |
| get_disk_usage = _psposix.get_disk_usage |
| network_io_counters = _psutil_osx.get_network_io_counters |
| disk_io_counters = _psutil_osx.get_disk_io_counters |
| |
| # --- decorator |
| |
| 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: |
| err = sys.exc_info()[1] |
| if err.errno == errno.ESRCH: |
| raise NoSuchProcess(self.pid, self._process_name) |
| if err.errno in (errno.EPERM, errno.EACCES): |
| raise AccessDenied(self.pid, self._process_name) |
| raise |
| return wrapper |
| |
| |
| _status_map = { |
| _psutil_osx.SIDL : STATUS_IDLE, |
| _psutil_osx.SRUN : STATUS_RUNNING, |
| _psutil_osx.SSLEEP : STATUS_SLEEPING, |
| _psutil_osx.SSTOP : STATUS_STOPPED, |
| _psutil_osx.SZOMB : STATUS_ZOMBIE, |
| } |
| |
| class Process(object): |
| """Wrapper class around underlying C implementation.""" |
| |
| __slots__ = ["pid", "_process_name"] |
| |
| def __init__(self, pid): |
| self.pid = pid |
| self._process_name = None |
| |
| @wrap_exceptions |
| def get_process_name(self): |
| """Return process name as a string of limited len (15).""" |
| return _psutil_osx.get_process_name(self.pid) |
| |
| @wrap_exceptions |
| def get_process_exe(self): |
| return _psutil_osx.get_process_exe(self.pid) |
| |
| @wrap_exceptions |
| def get_process_cmdline(self): |
| """Return process cmdline as a list of arguments.""" |
| if not pid_exists(self.pid): |
| raise NoSuchProcess(self.pid, self._process_name) |
| return _psutil_osx.get_process_cmdline(self.pid) |
| |
| @wrap_exceptions |
| def get_process_ppid(self): |
| """Return process parent pid.""" |
| return _psutil_osx.get_process_ppid(self.pid) |
| |
| @wrap_exceptions |
| def get_process_cwd(self): |
| return _psutil_osx.get_process_cwd(self.pid) |
| |
| @wrap_exceptions |
| def get_process_uids(self): |
| real, effective, saved = _psutil_osx.get_process_uids(self.pid) |
| return nt_uids(real, effective, saved) |
| |
| @wrap_exceptions |
| def get_process_gids(self): |
| real, effective, saved = _psutil_osx.get_process_gids(self.pid) |
| return nt_gids(real, effective, saved) |
| |
| @wrap_exceptions |
| def get_process_terminal(self): |
| tty_nr = _psutil_osx.get_process_tty_nr(self.pid) |
| tmap = _psposix._get_terminal_map() |
| try: |
| return tmap[tty_nr] |
| except KeyError: |
| return None |
| |
| @wrap_exceptions |
| def get_memory_info(self): |
| """Return a tuple with the process' RSS and VMS size.""" |
| rss, vms = _psutil_osx.get_process_memory_info(self.pid)[:2] |
| return nt_meminfo(rss, vms) |
| |
| _nt_ext_mem = namedtuple('meminfo', 'rss vms pfaults pageins') |
| |
| @wrap_exceptions |
| def get_ext_memory_info(self): |
| """Return a tuple with the process' RSS and VMS size.""" |
| rss, vms, pfaults, pageins = _psutil_osx.get_process_memory_info(self.pid) |
| return self._nt_ext_mem(rss, vms, |
| pfaults * _PAGESIZE, |
| pageins * _PAGESIZE) |
| |
| @wrap_exceptions |
| def get_cpu_times(self): |
| user, system = _psutil_osx.get_process_cpu_times(self.pid) |
| return nt_cputimes(user, system) |
| |
| @wrap_exceptions |
| def get_process_create_time(self): |
| """Return the start time of the process as a number of seconds since |
| the epoch.""" |
| return _psutil_osx.get_process_create_time(self.pid) |
| |
| @wrap_exceptions |
| def get_num_ctx_switches(self): |
| return nt_ctxsw(*_psutil_osx.get_process_num_ctx_switches(self.pid)) |
| |
| @wrap_exceptions |
| def get_process_num_threads(self): |
| """Return the number of threads belonging to the process.""" |
| return _psutil_osx.get_process_num_threads(self.pid) |
| |
| @wrap_exceptions |
| def get_open_files(self): |
| """Return files opened by process.""" |
| if self.pid == 0: |
| return [] |
| files = [] |
| rawlist = _psutil_osx.get_process_open_files(self.pid) |
| for path, fd in rawlist: |
| if isfile_strict(path): |
| ntuple = nt_openfile(path, fd) |
| files.append(ntuple) |
| return files |
| |
| @wrap_exceptions |
| def get_connections(self, kind='inet'): |
| """Return etwork connections opened by a process as a list of |
| namedtuples. |
| """ |
| 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] |
| ret = _psutil_osx.get_process_connections(self.pid, families, types) |
| return [nt_connection(*conn) for conn in ret] |
| |
| @wrap_exceptions |
| def get_num_fds(self): |
| if self.pid == 0: |
| return 0 |
| return _psutil_osx.get_process_num_fds(self.pid) |
| |
| @wrap_exceptions |
| def process_wait(self, timeout=None): |
| try: |
| return _psposix.wait_pid(self.pid, timeout) |
| except TimeoutExpired: |
| raise TimeoutExpired(self.pid, self._process_name) |
| |
| @wrap_exceptions |
| def get_process_nice(self): |
| return _psutil_posix.getpriority(self.pid) |
| |
| @wrap_exceptions |
| def set_process_nice(self, value): |
| return _psutil_posix.setpriority(self.pid, value) |
| |
| @wrap_exceptions |
| def get_process_status(self): |
| code = _psutil_osx.get_process_status(self.pid) |
| if code in _status_map: |
| return _status_map[code] |
| return constant(-1, "?") |
| |
| @wrap_exceptions |
| def get_process_threads(self): |
| """Return the number of threads belonging to the process.""" |
| rawlist = _psutil_osx.get_process_threads(self.pid) |
| retlist = [] |
| for thread_id, utime, stime in rawlist: |
| ntuple = nt_thread(thread_id, utime, stime) |
| retlist.append(ntuple) |
| return retlist |
| |
| nt_mmap_grouped = namedtuple('mmap', |
| 'path rss private swapped dirtied ref_count shadow_depth') |
| nt_mmap_ext = namedtuple('mmap', |
| 'addr perms path rss private swapped dirtied ref_count shadow_depth') |
| |
| @wrap_exceptions |
| def get_memory_maps(self): |
| return _psutil_osx.get_process_memory_maps(self.pid) |
