C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// from . import base from .decorators import * import tuned.logs from . import exceptions from tuned.utils.commands import commands import tuned.consts as consts import os import re log = tuned.logs.get() class SystemdPlugin(base.Plugin): """ Plugin for tuning systemd options. These tunings are unloaded only on profile change followed by reboot. """ def __init__(self, *args, **kwargs): if not os.path.isfile(consts.SYSTEMD_SYSTEM_CONF_FILE): raise exceptions.NotSupportedPluginException("Required systemd '%s' configuration file not found, disabling plugin." % consts.SYSTEMD_SYSTEM_CONF_FILE) super(SystemdPlugin, self).__init__(*args, **kwargs) self._cmd = commands() def _instance_init(self, instance): instance._has_dynamic_tuning = False instance._has_static_tuning = True def _instance_cleanup(self, instance): pass @classmethod def _get_config_options(cls): return { "cpu_affinity": None, } def _get_keyval(self, conf, key): if conf is not None: mo = re.search(r"^\s*" + key + r"\s*=\s*(.*)$", conf, flags = re.MULTILINE) if mo is not None and mo.lastindex == 1: return mo.group(1) return None # add/replace key with the value def _add_keyval(self, conf, key, val): (conf_new, nsubs) = re.subn(r"^(\s*" + key + r"\s*=).*$", r"\g<1>" + str(val), conf, flags = re.MULTILINE) if nsubs < 1: try: if conf[-1] != "\n": conf += "\n" except IndexError: pass conf += key + "=" + str(val) + "\n" return conf return conf_new def _del_key(self, conf, key): return re.sub(r"^\s*" + key + r"\s*=.*\n", "", conf, flags = re.MULTILINE) def _read_systemd_system_conf(self): systemd_system_conf = self._cmd.read_file(consts.SYSTEMD_SYSTEM_CONF_FILE, err_ret = None) if systemd_system_conf is None: log.error("error reading systemd configuration file") return None return systemd_system_conf def _write_systemd_system_conf(self, conf): tmpfile = consts.SYSTEMD_SYSTEM_CONF_FILE + consts.TMP_FILE_SUFFIX if not self._cmd.write_to_file(tmpfile, conf): log.error("error writing systemd configuration file") self._cmd.unlink(tmpfile, no_error = True) return False # Atomic replace, this doesn't work on Windows (AFAIK there is no way on Windows how to do this # atomically), but it's unlikely this code will run there if not self._cmd.rename(tmpfile, consts.SYSTEMD_SYSTEM_CONF_FILE): log.error("error replacing systemd configuration file '%s'" % consts.SYSTEMD_SYSTEM_CONF_FILE) self._cmd.unlink(tmpfile, no_error = True) return False return True def _get_storage_filename(self): return os.path.join(consts.PERSISTENT_STORAGE_DIR, self.name) def _remove_systemd_tuning(self): conf = self._read_systemd_system_conf() if (conf is not None): fname = self._get_storage_filename() cpu_affinity_saved = self._cmd.read_file(fname, err_ret = None, no_error = True) self._cmd.unlink(fname) if cpu_affinity_saved is None: conf = self._del_key(conf, consts.SYSTEMD_CPUAFFINITY_VAR) else: conf = self._add_keyval(conf, consts.SYSTEMD_CPUAFFINITY_VAR, cpu_affinity_saved) self._write_systemd_system_conf(conf) def _instance_unap