3
�
�^� c @ sx d Z dddddddgZdZeZi fd
d�Zdd� Zdd� Zd
d� Zddd�Z dd� Z
G dd� de�Zda
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�LockTypei i 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)
ZtypeZtupleZ TypeErrorZdict�_main�
SystemExit� tracebackZ print_exc�
_interrupt�KeyboardInterrupt)ZfunctionZargsZkwargsr
� 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 = � 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 � t � S )z0Dummy implementation of _thread.allocate_lock().�r r
r
r
r r J r Nc C s | dk rt d��dS )z-Dummy implementation of _thread.stack_size().Nz'setting thread stack size not supportedr )r )Zsizer
r
r �
stack_sizeN s r c C r )z0Dummy implementation of _thread._set_sentinel().r r
r
r
r �
_set_sentinelT r r c @ sF e Zd ZdZdd� Zddd�ZeZdd � Zd
d� Zdd
� 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 � 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 ZtypZvalZtbr
r
r �__exit__� r 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 r r r r
r
r �locked� r zLockType.lockedc C s* d| j rdnd| jj| jjtt| ��f S )Nz<%s %s.%s object at %s>r! Zunlocked)r Z __class__�
__module__�__qualname__ZhexZidr r
r
r �__repr__� s
zLockType.__repr__r )Nr )Z__name__r"