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SDL_Semaphore

sdl3_sys::mutex

Struct SDL_Semaphore 

Source 
pub struct SDL_Semaphore { /* private fields */ }
Expand description

A means to manage access to a resource, by count, between threads.

Semaphores (specifically, “counting semaphores”), let X number of threads request access at the same time, each thread granted access decrementing a counter. When the counter reaches zero, future requests block until a prior thread releases their request, incrementing the counter again.

Wikipedia has a thorough explanation of the concept:

https://en.wikipedia.org/wiki/Semaphore_(programming)

§Availability

This struct is available since SDL 3.2.0.

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