22   lua_State *co = lua_tothread(L, 1);  in getco()  local
23   luaL_argexpected(L, co, 1, "thread");  in getco()
24   return co;  in getco()
32 static int auxresume (lua_State *L, lua_State *co, int narg) {  in auxresume()  argument
34   if (l_unlikely(!lua_checkstack(co, narg))) {  in auxresume()
38   lua_xmove(L, co, narg);  in auxresume()
39   status = lua_resume(co, L, narg, &nres);  in auxresume()
42       lua_pop(co, nres);  /* remove results anyway */  in auxresume()
46     lua_xmove(co, L, nres);  /* move yielded values */  in auxresume()
50     lua_xmove(co, L, 1);  /* move error message */  in auxresume()
57   lua_State *co = getco(L);  in luaB_coresume()  local
59   r = auxresume(L, co, lua_gettop(L) - 1);  in luaB_coresume()
74   lua_State *co = lua_tothread(L, lua_upvalueindex(1));  in luaB_auxwrap()  local
75   int r = auxresume(L, co, lua_gettop(L));  in luaB_auxwrap()
77     int stat = lua_status(co);  in luaB_auxwrap()
79       stat = lua_closethread(co, L);  /* close its tbc variables */  in luaB_auxwrap()
81       lua_xmove(co, L, 1);  /* move error message to the caller */  in luaB_auxwrap()
127 static int auxstatus (lua_State *L, lua_State *co) {  in auxstatus()  argument
128   if (L == co) return COS_RUN;  in auxstatus()
130     switch (lua_status(co)) {  in auxstatus()
135         if (lua_getstack(co, 0, &ar))  /* does it have frames? */  in auxstatus()
137         else if (lua_gettop(co) == 0)  in auxstatus()
150   lua_State *co = getco(L);  in luaB_costatus()  local
151   lua_pushstring(L, statname[auxstatus(L, co)]);  in luaB_costatus()
157   lua_State *co = lua_isnone(L, 1) ? L : getco(L);  in luaB_yieldable()  local
158   lua_pushboolean(L, lua_isyieldable(co));  in luaB_yieldable()
171   lua_State *co = getco(L);  in luaB_close()  local
172   int status = auxstatus(L, co);  in luaB_close()
175       status = lua_closethread(co, L);  in luaB_close()
182         lua_xmove(co, L, 1);  /* move error message */  in luaB_close()