This includes a global :None:None:`secede` method that a submitted function can call to have its thread leave the ThreadPoolExecutor's thread pool. This allows the thread pool to allocate another thread if necessary and so is useful when a function realises that it is going to be a long-running job that doesn't want to take up space. When the function finishes its thread will terminate gracefully.
This code copies and modifies two functions from the concurrent.futures.thread
module, notably :None:None:`_worker` and ThreadPoolExecutor._adjust_thread_count` to allow for checking against a global threading.local
state. These functions are subject to the following license, which is included as a comment at the end of this file:
https://docs.python.org/3/license.html
... and are under copyright by the Python Software Foundation
Copyright 2001-2016 Python Software Foundation; All Rights Reserved
Modified ThreadPoolExecutor to support threads leaving the thread pool
Modified ThreadPoolExecutor to support threads leaving the thread pool
This includes a global :None:None:`secede` method that a submitted function can call to have its thread leave the ThreadPoolExecutor's thread pool. This allows the thread pool to allocate another thread if necessary and so is useful when a function realises that it is going to be a long-running job that doesn't want to take up space. When the function finishes its thread will terminate gracefully.
This code copies and modifies two functions from the concurrent.futures.thread
module, notably :None:None:`_worker` and ThreadPoolExecutor._adjust_thread_count` to allow for checking against a global threading.local
state. These functions are subject to the following license, which is included as a comment at the end of this file:
https://docs.python.org/3/license.html
... and are under copyright by the Python Software Foundation
Copyright 2001-2016 Python Software Foundation; All Rights Reserved
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