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luaur_vm/functions/
lua_pushthread.rs

1use crate::functions::lua_c_barrierback::lua_c_barrierback;
2use crate::macros::api_incr_top::api_incr_top;
3use crate::macros::blackbit::BLACKBIT;
4use crate::macros::setthvalue::setthvalue;
5use crate::records::gc_object::GCObject;
6use crate::type_aliases::lua_state::lua_State;
7
8pub unsafe fn lua_pushthread(l: *mut lua_State) -> i32 {
9    // Inline luaC_threadbarrier(l) to avoid buggy macros in the crate
10    let marked = (*l).hdr.marked as i32;
11    if (marked & (1 << BLACKBIT)) != 0 {
12        lua_c_barrierback(
13            l,
14            l as *mut GCObject,
15            &mut (*l).gclist as *mut *mut GCObject,
16        );
17    }
18
19    setthvalue!(l, (*l).top, l);
20    api_incr_top!(l);
21    ((*(*l).global).mainthread == l) as i32
22}