CODEWITHSUNDEEP
python-3.x
variable
variable

Reputation: 9714

What is the purpose of making a non-blocking lock?

In python multithreading (https://docs.python.org/3/library/threading.html#threading.Lock.acquire), the acquire allows lock to be non-blocking.

What is the purpose of making a non-blocking lock?

Upvotes: 0

Views: 199

Answers (1)

Altareos
Altareos

Reputation: 882

When invoked with the blocking argument set to False, do not block. If a call with blocking set to True would block, return False immediately; otherwise, set the lock to locked and return True.

This makes it so you can attempt to acquire a lock, and if it is not free, do something else or simply continue execution.

if lock.acquire(blocking=False):
    do_thread_unsafe_operation()
    lock.release()
else:
    do_something_else()

Upvotes: 2

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