tree e3e8e5bca34e8f32c3e4e1f53e933cedd5b3ab1d
parent eb92526d5e04572fdf1d15d2f3ae10a967c2f46f
author Niklas Haas <git@haasn.dev> 1636379252 +0100
committer Niklas Haas <git@haasn.dev> 1636379252 +0100

Initialize global mutex in a thread-safe manner

Currently, ShInitialize() and friends call glslang::InitGlobalLock()
which *overwrites* the global mutex. As such, even though it ostensibly
takes a mutex, this function is actually completely thread-unsafe.

Fix it by using pthread_once to ensure the mutex is only initialized
once, and then never again.