Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_DelayNS - Wait a specified number of nanoseconds before returning.
SYNOPSIS
#include <SDL3/SDL_timer.h>
void SDL_DelayNS(Uint64 ns);
DESCRIPTION
This function waits a specified number of nanoseconds before returning. It waits at least the specified
time, but possibly longer due to OS scheduling.
FUNCTION PARAMETERS
ns the number of nanoseconds to delay.
THREAD SAFETY
It is safe to call this function from any thread.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
SDL_Delay(3), SDL_DelayPrecise(3)
Simple Directmedia Layer SDL 3.2.20 SDL_DelayNS(3)