Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_SignalAsyncIOQueue - Wake up any threads that are blocking in SDL_WaitAsyncIOResult ().
HEADER FILE
Defined in SDL3/SDL_asyncio.h
SYNOPSIS
#include "SDL3/SDL.h" void SDL_SignalAsyncIOQueue(SDL_AsyncIOQueue *queue);
DESCRIPTION
This will unblock any threads that are sleeping in a call to SDL_WaitAsyncIOResult for the specified queue, and cause them to return from that function. This can be useful when destroying a queue to make sure nothing is touching it indefinitely. In this case, once this call completes, the caller should take measures to make sure any previously-blocked threads have returned from their wait and will not touch the queue again (perhaps by setting a flag to tell the threads to terminate and then using SDL_WaitThread () to make sure they've done so).
FUNCTION PARAMETERS
queue the async I/O task queue to signal.
THREAD SAFETY
It is safe to call this function from any thread.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_WaitAsyncIOResult(3) Simple Directmedia Layer SDL 3.2.8 SDL_SignalAsyncIOQueue(3)