Current File : //proc/self/root/proc/self/root/proc/self/root/lib/python2.7/site-packages/rhn/rhnLockfile.pyo
�
��Qc @ s� d d l Z d d l Z d d l Z d d l m Z m Z d d l Z d e f d � � YZ d d
d � � YZ d � Z e
d k r� e j e � p� d � n d S( i����N( t EWOULDBLOCKt EEXISTt LockfileLockedExceptionc B s e Z d Z RS( s$ thrown ONLY when pid file is locked.( t __name__t
__module__t __doc__( ( ( s3 /usr/lib/python2.7/site-packages/rhn/rhnLockfile.pyR s t Lockfilec B s, e Z d Z d d � Z d � Z d � Z RS( s� class that provides simple access to a PID-style lockfile.
methods: __init__(lockfile), acquire(), and release()
NOTE: currently acquires upon init
The *.pid file will be acquired, or an LockfileLockedException is raised.
c C s� t j j t j j t j j | � � � | _ | | _ | j sQ t j � | _ n t j j | j � } t j j | � s� y t j
| � Wq� t k
r� } t | d � r� | j
t k r� q� � q� Xn t j | j t j t j Bt j B� | _ | j � d S( sl create (if need be), and acquire lock on lockfile
lockfile example: '/var/run/up2date.pid'
t errnoN( t ost patht abspatht
expandusert
expandvarst lockfilet pidt getpidt dirnamet existst makedirst OSErrort hasattrR R t opent O_RDWRt O_CREATt O_SYNCt ft acquire( t selfR
R R t e( ( s3 /usr/lib/python2.7/site-packages/rhn/rhnLockfile.pyt __init__# s
)c C s� y! t j | j t j t j B� WnK t k
rn } | j t k rh t d | j � d t j � d � qo � n Xt j | j t j
d � t j | j d � t j | j t | j � d � d S( s5 acquire the lock; else raise LockfileLockedException.s cannot acquire lock on %s.i i i s
N( t fcntlt flockR t LOCK_EXt LOCK_NBt IOErrorR R R R
t Nonet syst exc_infot F_SETFDR t ftruncatet writet strR ( R R ( ( s3 /usr/lib/python2.7/site-packages/rhn/rhnLockfile.pyR C s !#c C s: t j | j � t j | j t j � t j | j � d S( N( R t unlinkR
R R R t LOCK_UNt close( R ( ( s3 /usr/lib/python2.7/site-packages/rhn/rhnLockfile.pyt releaseT s N( R R R R# R R R- ( ( ( s3 /usr/lib/python2.7/site-packages/rhn/rhnLockfile.pyR s c C s} y t d � } Wn4 t k
rF } t j j d | � t j d � n3 Xd GHd GHd d l } | j d � | j � d GHd S( s test codes
./test.pids %s
i����s lock acquired s ...sleeping for 10 secondsNi
s lock released ( R R R$ t stderrR( t exitt timet sleepR- ( t LR R0 ( ( s3 /usr/lib/python2.7/site-packages/rhn/rhnLockfile.pyt main[ s
t __main__i ( ( R R$ R R R R t ExceptionR R R3 R R/ ( ( ( s3 /usr/lib/python2.7/site-packages/rhn/rhnLockfile.pyt <module> s A
Mini Shell