| Re: [AD] race condition when removing/adding ints |
[ Thread Index |
Date Index
| More lists.liballeg.org/allegro-developers Archives
]
> Anyone remember what this line in timer.c means:
>
> #undef ALLEGRO_MULTITHREADED /* FIXME */
I added it because we had deadlocks in the X11 port without it.
The problem with the timer.c code in a multithreaded environment is that you
can remove a timer while the callback is being invoked (e.g. in the mouse
pointer case). Hence we need a global mutex. But IIRC this didn't play nice
with the original X11 code.
--
Eric Botcazou