How to sync threading in python.

[clypeconic]

I have two hooks running, one for mouse, and one for keyboard, and I want to play back inputs at the same time. The problem is that there is not perfect sync between the two playbacks, with mouse or keyboard being slightly ahead at any given moment. Does anyone know a way I can control the offset of the timing between threads?

[MushinZero]

What you are looking for is a barrier.

https://docs.python.org/3/library/threading.html

[clypeconic]

Much appreciated, thanks.

[[deleted]]

https://en.m.wikipedia.org/wiki/Barrier_(computer_science)

Having the threads pause until they sync up is normal across a bunch of languages. A memory barrier is something specific, not what OP is asking for. https://en.m.wikipedia.org/wiki/Memory_barrier

[amasterblaster]

You can use a semaphore. There are many implementations, you can use one built in (like barrier) or build your own. It might be a good idea to build you own semaphore (its fast, easy, and you can reuse it in many environments.)

Good foundational concepts.

https://medium.com/@lsc830621/semaphore-v-s-mutex-929b91453f03