U T‚gã@sPdZddlmZddlmZGdd„deƒZGdd„deƒZGdd „d eƒZd S) z Interfaces related to threads. é)ÚCallable)Ú Interfacec@seZdZdZdS)Ú AlreadyQuitzJ This worker worker is dead and cannot execute more instructions. N©Ú__name__Ú __module__Ú __qualname__Ú__doc__©r r ú>/tmp/pip-unpacked-wheel-1_7di8ic/twisted/_threads/_ithreads.pyrsrc@s6eZdZdZegdfddœdd„Zddœdd„ZdS) ÚIWorkerzs A worker that can perform some work concurrently. All methods on this interface must be thread-safe. N)ÚtaskÚreturncCsdS)a; Perform the given task. As an interface, this method makes no specific claims about concurrent execution. An L{IWorker}'s C{do} implementation may defer execution for later on the same thread, immediately on a different thread, or some combination of the two. It is valid for a C{do} method to schedule C{task} in such a way that it may never be executed. It is important for some implementations to provide specific properties with respect to where C{task} is executed, of course, and client code may rely on a more specific implementation of C{do} than L{IWorker}. @param task: a task to call in a thread or other concurrent context. @type task: 0-argument callable @raise AlreadyQuit: if C{quit} has been called. Nr )r r r r Údosz IWorker.do)rcCsdS)z¹ Free any resources associated with this L{IWorker} and cause it to reject all future work. @raise AlreadyQuit: if this method has already been called. Nr r r r r Úquit0sz IWorker.quit)rrrr rrrr r r r r sr c@seZdZdZdS)ÚIExclusiveWorkerz“ Like L{IWorker}, but with the additional guarantee that the callables passed to C{do} will not be called exclusively with each other. Nrr r r r r9srN) r ÚtypingrZzope.interfacerÚ Exceptionrr rr r r r Ús   $