Edit file File name : _dummy_thread.cpython-38.pyc Content :U �;rc� � @ s� d Z ddddddddgZd ZeZi fd d�Zdd� Zdd� Zd d� Zddd�Z dd� Z G dd� de�ZG dd� de�Z dadadd� 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�RLockl c C s� t |�t t� �krtd��t |�t t� �kr4td��daz| ||� W n. tk rZ Y n ddl}|�� 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/lib/python3.8/_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� 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 s zLockType.__init__N���c C sH |dks|rd| _ dS | j s&d| _ dS |dkr@ddl}|�|� 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 �time�sleep)r �waitflag�timeoutr# r r r �acquiref s zLockType.acquirec C s | � � 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 r( r r r r r �locked� s zLockType.lockedc C s* d| j rdnd| jj| jjtt| ��f S )Nz<%s %s.%s object at %s>r. Zunlocked)r � __class__� __module__�__qualname__�hex�idr r r r �__repr__� s �zLockType.__repr__)Nr"