SDL_LockAudio(3) SDL API Reference SDL_LockAudio(3)NAMESDL_LockAudio - Lock out the callback function
The lock manipulated by these functions protects the callback function.
During a LockAudio period, you can be guaranteed that the callback
function is not running. Do not call these from the callback function
or you will cause deadlock.
SDL Tue 11 Sep 2001, 22:58 SDL_LockAudio(3)