The thread ID is an unsigned long so it can hold pthread_t so people can do naughty things with it.
I'm going to be adding additional useful thread API functions, but this should prevent crashes in people's existing code on 64-bit architectures.
FIXME:
Change #include <stdlib.h> to #include "SDL_stdlib.h"
Change #include <string.h> to #include "SDL_string.h"
Make sure nothing else broke because of this...
To: sdl@libsdl.org
Date: Sat, 9 Jul 2005 13:59:33 -0400
Subject: [PATCH] fix locking in src/timer/SYS_timer.c
SDL_SetTimer has a typo in CVS. This code was added since 1.2.8. The
result is that the SDL_timer_mutex is locked twice and never unlocked,
breaking systems that use a threaded timer implementation.
-jim
* SDL_timer_running wasn't always updated correctly.
* Fixed occasional crash in SDL_SetTimer() when clearing threaded timers
* It was possible to get both the timer thread and event thread running
* Other misc. cleanup