𝗖𝗨𝗥𝗥𝗘𝗡𝗧 𝗙𝗜𝗟𝗘 : /usr/lib/python3.6/site-packages/tuned/daemon/__pycache__//application.cpython-36.opt-1.pyc
3
�<�e� � @ s� d dl mZmZmZmZmZmZmZ d dlm Z d dl
Z d dl Z ddl m
Z
ddl mZ d dlZd dlZd dlZd dlZd dlZd dljZd dlmZ e jj� ZdgZG d d� de �Z dS )
� )�storage�units�monitors�plugins�profiles�exports�hardware)�TunedExceptionN� )�
controller)�daemon)� GlobalConfig� Applicationc @ s� e Zd Zd dd�Zdd� Zdd� Zdd � Zd
d � Zd d
� Zdd� Z e
j fdd�Z dd� Z
dd� Ze
j fdd�Zedd� �Zedd� �Zd d � ZdS ) r Nc C sp t jdtjjtj� d f � d | _d | _t j
� }t j |�}|d krJt � n|| _
| j
jtj�rjt jd� n
t jd� tj� }| j
jdtj�}tj|d�}tj� }tj� } tjj � }
tj j � | _ tj||||| |
| j
| j �} t | j
j tj tj!��} t"j#| || || j
�}
tj � }tj$� }tj%tj&�}tj'|||| j
| j �}t(j)|
||| j
| �| _*t+j,| j*| j
�| _-| j.� d | _/d S )NzTuneD: %s, kernel: %s� z8dynamic tuning is enabled (can be overridden in plugins)z#dynamic tuning is globally disabled�udev_buffer_size)� buffer_size)0�log�info�tuned�versionZTUNED_VERSION_STR�os�uname�_dbus_exporter�_unix_socket_exporterr ZPickleProviderZFactoryr
�config�get_bool�constsZCFG_DYNAMIC_TUNINGr Z
RepositoryZget_sizeZCFG_DEF_UDEV_BUFFER_SIZEr Z InventoryZ
DeviceMatcherZDeviceMatcherUdevr �instancer � variables� Variables�int�getZ CFG_DEFAULT_INSTANCE_PRIORITYZ!CFG_DEF_DEFAULT_INSTANCE_PRIORITYr ZManagerZMergerZLocatorZLOAD_DIRECTORIES�Loaderr ZDaemon�_daemonr Z
Controller� _controller�
_init_signals� _pid_file)�selfZ profile_namer Zstorage_providerZstorage_factoryZmonitors_repositoryr Zhardware_inventoryZdevice_matcherZdevice_matcher_udevZplugin_instance_factoryZplugins_repositoryZdef_instance_priorityZ unit_managerZprofile_factoryZprofile_mergerZprofile_locatorZprofile_loader� r( �!/usr/lib/python3.6/application.py�__init__ s<
zApplication.__init__c s � �fdd�}t j �|� d S )Nc s �| kr� � d S )Nr( )Z_signal_numberZ_frame)�handler�
signal_numberr( r) �handler_wrapper@ s z3Application._handle_signal.<locals>.handler_wrapper)�signal)r' r, r+ r- r( )r+ r, r) �_handle_signal? s zApplication._handle_signalc C s: | j tj| jj� | j tj| jj� | j tj| jj� d S )N)r/ r. �SIGHUPr$ Zsighup�SIGINTZ terminate�SIGTERM)r' r( r( r) r% E s zApplication._init_signalsc C s6 | j d k rtd��tjj||||�| _ tj| j � d S )Nz&DBus interface is already initialized.)r r r ZdbusZ DBusExporter�register_exporter)r' Zbus_nameZ object_nameZinterface_name� namespacer( r( r) �attach_to_dbusJ s
zApplication.attach_to_dbusc C sj | j d k rtd��tjj| jjtj�| jjtj �| jjtj
�| jj tj �| jj tj
��| _ tj| j � d S )Nz-Unix socket interface is already initialized.)r r r Z unix_socketZUnixSocketExporterr r! r ZCFG_UNIX_SOCKET_PATHZ CFG_UNIX_SOCKET_SIGNAL_PATHSZCFG_UNIX_SOCKET_OWNERSHIPZget_intZCFG_UNIX_SOCKET_PERMISIONSZ#CFG_UNIX_SOCKET_CONNECTIONS_BACKLOGr3 )r' r( r( r) �attach_to_unix_socketQ s
z!Application.attach_to_unix_socketc C s t j| j� d S )N)r Zregister_objectr$ )r' r( r( r) �register_controller\ s z Application.register_controllerc C s� t j|� tj|gg g tj�\}}}t|�dkrBt j|� td��t j|d�}t j|� t|�dkrltd��ytj d|�d }W n tj
k
r� td��Y nX |dkr�td ��d
S ) z|
Wait till the child signalizes that the initialization is complete by writing
some uninteresting data into the pipe.
r
z=Cannot daemonize, timeout when waiting for the child process.� r z:Cannot daemonize, no response from child process received.�?z?Cannot daemonize, invalid response from child process received.Tz0Cannot daemonize, child process reports failure.N) r �close�selectr ZDAEMONIZE_PARENT_TIMEOUT�lenr �read�struct�unpack�error)r' � parent_in_fd� child_out_fdZ
read_readyZdropZresponse�valr( r( r) �_daemonize_parent_ s
z Application._daemonize_parentc C s� || _ | j� yltjj| j �}tjj|�s4tj|� tjtj| j tj tj
B tj B d�d��}|j dtj
� � W d Q R X W n> ttfk
r� } z tjd| j t|�f � W Y d d }~X nX d S )Ni� �wz%dz cannot write the PID to %s: %s)r& �_delete_pid_filer �path�dirname�exists�makedirs�fdopen�open�O_CREAT�O_TRUNC�O_WRONLY�write�getpid�OSError�IOErrorr �critical�str)r' �pid_fileZdir_name�fr@ r( r( r) �write_pid_filex s
( zApplication.write_pid_filec C s^ t jj| j�rZyt j| j� W n: tk
rX } z tjd| jt|�f � W Y d d }~X nX d S )Nz&cannot remove existing PID file %s, %s) r rG rI r& �unlinkrR r ZwarningrU )r' r@ r( r( r) rF � s
z Application._delete_pid_filec C s* t j|� t jd� t j� t jd� y t j� }|dkrBtjd� W n^ tk
r� } zBt j
dt |� � t j
dd�}t j||� t j|� td��W Y dd}~X nX tdd �}t j|j� tjj� � t j|j� tjj� � t j|j� tjj� � | j|� t jd
� t j
dd �}t j||� t j|� dS ) zy
Finishes daemonizing process, writes a PID file and signalizes to the parent
that the initialization is complete.
�/r z"cannot daemonize, fork() error: %sr9 Fz'Cannot daemonize, second fork() failed.Nz /dev/nullzw+zsuccessfully daemonizedT)r r: �chdir�setsid�umask�fork�sys�exitrR r rT rU r> �packrP r rL �dup2�fileno�stdin�stdout�stderrrX �debug)r' rV rA rB �pidr@ rC �fdr( r( r) �_daemonize_child� s.
z Application._daemonize_childc C s� t j� }y t j� }W nF tk
rZ } z*t j|d � t j|d � td��W Y dd}~X nX y2|dkr|| j|� tjd� n| j |f|�� W n" |dkr�� n
tjd� Y nX dS )z�
Daemonizes the application. In case of failure, TunedException is raised
in the parent process. If the operation is successfull, the main process
is terminated and only child process returns from this method.
r r
z Cannot daemonize, fork() failed.N)
r �piper^ rR r: r rD r_ r` rj )r' rV Zparent_child_fdsZ child_pidr@ r( r( r) � daemonize� s
zApplication.daemonizec C s | j S )N)r# )r' r( r( r) r � s zApplication.daemonc C s | j S )N)r$ )r' r( r( r) r � s zApplication.controllerc C sj |r| j jtjd� | j jtjtj�s0tjd� | jj � }| j jtjtj�rTt
j � | j d k rf| j
� |S )NTzrUsing one shot no daemon mode, most of the functionality will be not available, it can be changed in global config)r �setr Z
CFG_DAEMONr ZCFG_DEF_DAEMONr �warnr$ �runr �stopr& rF )r' r �resultr( r( r) ro � s
zApplication.run)NN)�__name__�
__module__� __qualname__r* r/ r% r5 r6 r7 rD r ZPID_FILErX rF rj rl �propertyr r ro r( r( r( r) r s
+
" ) r r r r r r r r Ztuned.exceptionsr Z
tuned.logsZ
tuned.version� r r r. r r_ r; r> Z tuned.constsr Ztuned.utils.global_configr
Zlogsr! r �__all__�objectr r( r( r( r) �<module> s $
