File: //lib/python3.6/site-packages/tuned/plugins/__pycache__/plugin_sysctl.cpython-36.opt-1.pyc
3
]�b� � @ s� d dl Z ddlmZ ddlT d dlZd dlT d dlmZ d dl j
Z
d dl Z d dl Z ej
j� ZddgZdd gZG d
d � d ej�Zd d
� Zdd� Zdd� Zdd� Zdd� Zddd�ZdS )� N� )�base)�*)�commandsZbase_reachable_timeZ retrans_timez
/run/sysctl.dz
/etc/sysctl.dc sJ e Zd ZdZ� fdd�Zdd� Zdd� Zdd � Zd
d � Zdd
d�Z � Z
S )� SysctlPluginaI
`sysctl`::
Sets various kernel parameters at runtime.
+
This plug-in is used for applying custom `sysctl` settings and should
only be used to change system settings that are not covered by other
*TuneD* plug-ins. If the settings are covered by other *TuneD* plug-ins,
use those plug-ins instead.
+
The syntax for this plug-in is
`_key_=_value_`, where
`_key_` is the same as the key name provided by the
`sysctl` utility.
+
.Adjusting the kernel runtime kernel.sched_min_granularity_ns value
====
----
[sysctl]
kernel.sched_min_granularity_ns=3000000
----
====
c s$ t t| �j||� d| _t� | _d S )NT)�superr �__init__Z_has_dynamic_optionsr �_cmd)�self�args�kwargs)� __class__� �#/usr/lib/python3.6/plugin_sysctl.pyr * s zSysctlPlugin.__init__c C sh d|_ d|_| j|j�}| jj|i �|_t|j�dkr\tj d� | j
|� i |_| jj |� |j |_
d S )NFTr z0recovering old sysctl settings from previous run)Z_has_dynamic_tuningZ_has_static_tuning� _storage_key�name�_storage�get�_sysctl_original�len�log�info�_instance_unapply_static�unsetZoptions�_sysctl)r
�instance� storage_keyr r r �_instance_init/ s
zSysctlPlugin._instance_initc C s | j |j�}| jj|� d S )N)r r r r )r
r r r r r �_instance_cleanup? s z SysctlPlugin._instance_cleanupc C s� xvt |jj� �D ]d\}}t|�}|d kr8tjd| � q| jj| jj |��}| j
||�}|d k r||j |< t ||� qW | j
|j�}| jj||j � | jjtjtj�r�tjd� t� d S )NzDsysctl option %s will not be set, failed to read the original value.zreapplying system sysctl)�listr �items� _read_sysctlr �error�
_variables�expandr Zunquote� _process_assignment_modifiersr �
_write_sysctlr r r �setZ _global_cfgZget_bool�constsZCFG_REAPPLY_SYSCTLZCFG_DEF_REAPPLY_SYSCTLr �_apply_system_sysctl)r
r �option�value�original_valueZ new_valuer r r r �_instance_apply_staticC s"
z#SysctlPlugin._instance_apply_staticc C st d}d}xft |jj� �D ]T\}}t|�}| j| jj|�|�}|d k r| j|| jj |�| jj |�|�dkrd}qW |S )NTF)
r r r r! r% r# r$ Z
_verify_valuer Z remove_ws)r
r �ignore_missingZdevices�retr* r+ Zcurr_valr r r �_instance_verify_staticY s $z$SysctlPlugin._instance_verify_staticFc C s* x$t |jj� �D ]\}}t||� qW d S )N)r r r r& )r
r Z
full_rollbackr* r+ r r r r e s z%SysctlPlugin._instance_unapply_static)F) �__name__�
__module__� __qualname__�__doc__r r r r- r0 r �
__classcell__r r )r
r r s r c
C s� i } x\t D ]T}ytj|�}W n tk
r2 w
Y nX x(|D ] }|jd�sJq:|| kr:|| |< q:W q
W x0t| j� �D ] }| | }d||f }t|� qpW td� d S )Nz.confz%s/%sz/etc/sysctl.conf)�SYSCTL_CONFIG_DIRS�os�listdir�OSError�endswith�sorted�keys�_apply_sysctl_config_file)�files�d�flistZfname�pathr r r r) j s
r) c C s� t jd| � yLt| d��*}x"t|d�D ]\}}t| ||� q(W W d Q R X t jd| � W nH ttfk
r� } z(|jtjkr�t j d| t
|�f � W Y d d }~X nX d S )Nz%Applying sysctl settings from file %s�rr z.Finished applying sysctl settings from file %sz.Error reading sysctl settings from file %s: %s) r �debug�open� enumerate�_apply_sysctl_config_liner9 �IOError�errno�ENOENTr" �str)rA �f�lineno�line�er r r r= } s r= c C s� |j � }t|�dks,|d dks,|d dkr0d S |jdd�}t|�dkr^tjd| |f � d S |\}}|j � }t|�dkr�tjd| |f � d S |j � }t||dd � d S )
Nr �#�;�=r � z Syntax error in file %s, line %dT)r. )�stripr �splitr r" r& )rA rL rM Ztmpr* r+ r r r rF � s $ rF c C s d| j dd� S )Nz /proc/sys/%s�.�/)�replace)r* r r r �_get_sysctl_path� s rX c C s� t | �}yht|d��B}d}x.t|�D ]"\}}|dkr$tjd| � d S q$W |j� }W d Q R X tjd| |f � |S ttfk
r� } z6|j t j
kr�tjd| � ntjd| t |�f � d S d }~X nX d S )NrB � r zGFailed to read sysctl parameter '%s', multi-line values are unsupportedz&Value of sysctl parameter '%s' is '%s'zBFailed to read sysctl parameter '%s', the parameter does not existz(Failed to read sysctl parameter '%s': %s) rX rD rE r r" rS rC r9 rG rH rI rJ )r* rA rK rM �ir+ rN r r r r! � s(
r! Fc C s� t | �}tjj|�tkr*tjd| � dS y6tjd| |f � t|d��}|j |� W d Q R X dS t
t fk
r� } zJ|j t j
kr�|r�tjntj}|d| |f � ntjd| |t|�f � dS d }~X nX d S )Nz+Refusing to set deprecated sysctl option %sFz%Setting sysctl parameter '%s' to '%s'�wTzIFailed to set sysctl parameter '%s' to '%s', the parameter does not existz/Failed to set sysctl parameter '%s' to '%s': %s)rX r7 rA �basename�DEPRECATED_SYSCTL_OPTIONSr r" rC rD �writer9 rG rH rI rJ )r* r+ r. rA rK rN Zlog_funcr r r r& � s& r& )F)�rerY r Z
decoratorsZ
tuned.logsZtuned�
subprocessZtuned.utils.commandsr Z tuned.constsr( rH r7 Zlogsr r r] r6 ZPluginr r) r= rF rX r! r& r r r r �<module> s&
Y