3
\� � @ sx d Z dddddddgZdZeZi fd
d�Zd d� Zd d� Zd
d� Zddd�Z dd� Z
G dd� de �Z da
dadd� ZdS )a/ Drop-in replacement for the thread module.
Meant to be used as a brain-dead substitute so that threaded code does
not need to be rewritten for when the thread module is not present.
Suggested usage is::
try:
import _thread
except ImportError:
import _dummy_thread as _thread
�error�start_new_thread�exit� get_ident�
allocate_lock�interrupt_main�LockType� � c C s� t |�t t� �krtd��t |�t t� �kr4td��day| ||� W n. tk
rZ Y n ddl}|j� Y nX datr�dat �dS )a� Dummy implementation of _thread.start_new_thread().
Compatibility is maintained by making sure that ``args`` is a
tuple and ``kwargs`` is a dictionary. If an exception is raised
and it is SystemExit (which can be done by _thread.exit()) it is
caught and nothing is done; all other exceptions are printed out
by using traceback.print_exc().
If the executed function calls interrupt_main the KeyboardInterrupt will be
raised when the function returns.
z2nd arg must be a tuplez3rd arg must be a dictF� NT)
�type�tuple� TypeError�dict�_main�
SystemExit� traceback� print_exc�
_interrupt�KeyboardInterrupt)Zfunction�args�kwargsr � r �%/usr/lib64/python3.6/_dummy_thread.pyr s
c C s t �dS )z'Dummy implementation of _thread.exit().N)r r r r r r = s c C s dS )z�Dummy implementation of _thread.get_ident().
Since this module should only be used when _threadmodule is not
available, it is safe to assume that the current process is the
only thread. Thus a constant can be safely returned.
� ���r r r r r r A s c C s t � S )z0Dummy implementation of _thread.allocate_lock().)r r r r r r J s Nc C s | dk rt d��dS )z-Dummy implementation of _thread.stack_size().Nz'setting thread stack size not supportedr
)r )�sizer r r �
stack_sizeN s r c C s t � S )z0Dummy implementation of _thread._set_sentinel().)r r r r r �
_set_sentinelT s r c @ sF e Zd ZdZdd� Zddd�ZeZdd � Zd
d � Zd d
� Z dd� Z
dS )r a� Class implementing dummy implementation of _thread.LockType.
Compatibility is maintained by maintaining self.locked_status
which is a boolean that stores the state of the lock. Pickling of
the lock, though, should not be done since if the _thread module is
then used with an unpickled ``lock()`` from here problems could
occur from this class not having atomic methods.
c C s
d| _ d S )NF)�
locked_status)�selfr r r �__init__c s zLockType.__init__Nr c C sH |dks |rd| _ dS | j s&d| _ dS |dkr@ddl}|j|� dS dS )a� Dummy implementation of acquire().
For blocking calls, self.locked_status is automatically set to
True and returned appropriately based on value of
``waitflag``. If it is non-blocking, then the value is
actually checked and not set if it is already acquired. This
is all done so that threading.Condition's assert statements
aren't triggered and throw a little fit.
NTr
F)r �timeZsleep)r ZwaitflagZtimeoutr! r r r �acquiref s
zLockType.acquirec C s | j � d S )N)�release)r �typ�val�tbr r r �__exit__� s zLockType.__exit__c C s | j s
t�d| _ dS )zRelease the dummy lock.FT)r r )r r r r r# � s zLockType.releasec C s | j S )N)r )r r r r �locked� s zLockType.lockedc C s* d| j r dnd| jj| jjtt| ��f S )Nz<%s %s.%s object at %s>r( Zunlocked)r � __class__�
__module__� __qualname__�hex�id)r r r r �__repr__� s
zLockType.__repr__r )Nr ) �__name__r* r+ �__doc__r r" � __enter__r' r# r( r. r r r r r X s
FTc C s t r
t�ndadS )z^Set _interrupt flag to True to have start_new_thread raise
KeyboardInterrupt upon exiting.TN)r r r r r r r r � s l )N)r0 �__all__� TIMEOUT_MAX� RuntimeErrorr r r r r r r �objectr r r r r r r r �<module>
s
@