SDL_KillThread (3) - Linux Manuals
SDL_KillThread: Gracelessly terminates the thread.
NAME
SDL_KillThread - Gracelessly terminates the thread.SYNOPSIS
#include "SDL.h" #include "SDL_thread.h"
void SDL_KillThread(SDL_Thread *thread);
DESCRIPTION
SDL_KillThread gracelessly terminates the thread associated with thread. If possible, you should use some other form of IPC to signal the thread to quit.
SEE ALSO
SDL_CreateThread, SDL_WaitThread