$20 GRAYBYTE WORDPRESS FILE MANAGER $26

�
��f�c@s�dZd
dl
Z
d
dlZd
dlmZ
yd
dlZWnek
r^


d
dlZYn
Xyd
dl
mZ	
Wn"ek
r�


d
dl
m
Z	
Yn
Xdg
Z
Gdd�dedd	��Ze�Z
Gd
d�d�ZdS(u�A generally useful event scheduler class.

Each instance of this class manages its own queue.
No multi-threading is implied; you are supposed to hack that
yourself, or use a single instance per application.

Each instance is parametrized with two functions, one that is
supposed to return the current time, one that is supposed to
implement a delay.  You can implement real-time scheduling by
substituting time and sleep from built-in module time, or you can
implement simulated time by writing your own functions.  This can
also be used to integrate scheduling with STDWIN events; the delay
function is allowed to modify the queue.  Time can be expressed as
integers or floating point numbers, as long as it is consistent.

Events are specified by tuples (time, priority, action, argument, kwargs).
As in UNIX, lower priority numbers mean higher priority; in this
way the queue can be maintained as a priority queue.  Execution of the
event means calling the action function, passing it the argument
sequence in "argument" (remember that in Python, multiple function
arguments are be packed in a sequence) and keyword parameters in "kwargs".
The action function may be an instance method so it
has another way to reference private data (besides global variables).
iN(
u
namedtuple(
u	monotonic(
utimeu	schedulerc

Bs\|EeZ
dZd
d�Zdd�Zdd�Zdd�Zd	d
�Zdd�Zd
S(uEventcCs"|j|j
f|
j|
j
fkS(
N(utimeupriority(u
su
o((u*/opt/alt/python33/lib64/python3.3/sched.pyu__eq__.suEvent.__eq__cCs"|j|j
f|
j|
j
fkS(
N(utimeupriority(u
su
o((u*/opt/alt/python33/lib64/python3.3/sched.pyu__ne__/suEvent.__ne__cCs"|j|j
f|
j|
j
fkS(
N(utimeupriority(u
su
o((u*/opt/alt/python33/lib64/python3.3/sched.pyu__lt__0suEvent.__lt__cCs"|j|j
f|
j|
j
fk
S(
N(utimeupriority(u
su
o((u*/opt/alt/python33/lib64/python3.3/sched.pyu__le__1suEvent.__le__cCs"|j|j
f|
j|
j
fkS(
N(utimeupriority(u
su
o((u*/opt/alt/python33/lib64/python3.3/sched.pyu__gt__2suEvent.__gt__cCs"|j|j
f|
j|
j
fkS(
N(utimeupriority(u
su
o((u*/opt/alt/python33/lib64/python3.3/sched.pyu__ge__3suEvent.__ge__N(	u__name__u
__module__u__qualname__u__eq__u__ne__u__lt__u__le__u__gt__u__ge__(
u
__locals__((u*/opt/alt/python33/lib64/python3.3/sched.pyuEvent-s





uEventu(time, priority, action, argument, kwargsc

Bs�|EeZ
dZeejd
d�Zfedd�Zfedd�Z	dd�Z
d	d
�Zddd�
Z
ed
d��
ZdS(u	schedulercCs.g|_t
j�|_|
|_||_d
S(uGInitialize a new instance, passing the time and delay
        functionsN(u_queueu	threadinguRLocku_lockutimefuncu	delayfunc(uselfutimefuncu	delayfunc((u*/opt/alt/python33/lib64/python3.3/sched.pyu__init__9s	

	
uscheduler.__init__c
CsX|tkri}n|j
�4
t|
||||�}tj|j|�
|SWd
QXd
S(u�Enter a new event in the queue at an absolute time.

        Returns an ID for the event which can be used to remove it,
        if necessary.

        N(u	_sentinelu_lockuEventuheapquheappushu_queue(uselfutimeupriorityuactionuargumentukwargsuevent((u*/opt/alt/python33/lib64/python3.3/sched.pyuenterabsAs
	




uscheduler.enterabsc
Cs=|j�.
|j
�|
}|j|||||�SWd
QXd
S(u{A variant that specifies the time as a relative time.

        This is actually the more commonly used interface.

        N(u_lockutimefuncuenterabs(uselfudelayupriorityuactionuargumentukwargsutime((u*/opt/alt/python33/lib64/python3.3/sched.pyuenterOs


uscheduler.enterc	Cs4|j�%
|j
j|
�

tj|j
�

Wd
QXd
S(u�Remove an event from the queue.

        This must be presented the ID as returned by enter().
        If the event is not in the queue, this raises ValueError.

        N(u_locku_queueuremoveuheapquheapify(uselfuevent((u*/opt/alt/python33/lib64/python3.3/sched.pyucancelYs


uscheduler.cancelc

Cs|j�

|j
SWd
QXd
S(u!Check whether the queue is empty.N(u_locku_queue(
uself((u*/opt/alt/python33/lib64/python3.3/sched.pyuemptyds

uscheduler.emptycCs�|j}|j
}|j}|j}tj}x�|�V
|sAPn|d
\}}}	}
}|�}||krxd}
nd}
||�

WdQX|
r�|
s�||S|||�

q0|	|
|�
|d
�

q0dS(uExecute events until the queue is empty.
        If blocking is False executes the scheduled events due to
        expire soonest (if any) and then return the deadline of the
        next scheduled call in the scheduler.

        When there is a positive delay until the first event, the
        delay function is called and the event is left in the queue;
        otherwise, the event is removed from the queue and executed
        (its action function is called, passing it the argument).  If
        the delay function returns prematurely, it is simply
        restarted.

        It is legal for both the delay function and the action
        function to modify the queue or to raise an exception;
        exceptions are not caught but the scheduler's state remains
        well-defined so run() may be called again.

        A questionable hack is added to allow other threads to run:
        just after an event is executed, a delay of 0 is executed, to
        avoid monopolizing the CPU when other threads are also
        runnable.

        iNTF(u_locku_queueu	delayfuncutimefuncuheapquheappopuTrueuFalse(uselfublockingulocku
qu	delayfuncutimefuncupoputimeupriorityuactionuargumentukwargsunowudelay((u*/opt/alt/python33/lib64/python3.3/sched.pyurunis*	
	
	
	
	





	

	






u
scheduler.runc

CsJ|j�;
|j
d
d
�}
tttj|
g
t|
�
��
SWd
QXd
S(u�An ordered list of upcoming events.

        Events are named tuples with fields for:
            time, priority, action, arguments, kwargs

        N(u_locku_queueulistumapuheapquheappopulen(uselfuevents((u*/opt/alt/python33/lib64/python3.3/sched.pyuqueue�s


uscheduler.queueNT(u__name__u
__module__u__qualname__u_timeutimeusleepu__init__u	_sentineluenterabsuenterucanceluemptyuTrueurunupropertyuqueue(
u
__locals__((u*/opt/alt/python33/lib64/python3.3/sched.pyu	scheduler7s
2(u__doc__utimeuheapqucollectionsu
namedtupleu	threadinguImportErrorudummy_threadingu	monotonicu_timeu__all__uEventuobjectu	_sentinelu	scheduler(((u*/opt/alt/python33/lib64/python3.3/sched.pyu<module>s