Function lua_sethook

Source/Misc/lua/src/lua.c:4564–4574

** this function can be called asynchronous (e.g. during a signal) */

** this function can be called asynchronous (e.g. during a signal)
*/
LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count) {
if (func == NULL || mask == 0) {  /* turn off hooks? */
mask = 0;
func = NULL;
}
L->hook = func;
L->basehookcount = count;
resethookcount(L);
L->hookmask = cast_byte(mask);
return 1;
}


LUA_API lua_Hook lua_gethook (lua_State *L) {