Function init_dbthread_funcs

lua/sp.c:5210–5217

};

static void init_dbthread_funcs(Lua L)
{
    luaL_newmetatable(L, dbtypes.dbthread);
    lua_pushvalue(L, -1);
    lua_setfield(L, -2, "__index");
    luaL_openlib(L, NULL, dbthread_funcs, 0);
    lua_pop(L, 1);
}

static const struct luaL_Reg dbconsumer_funcs[] = {
    {"__gc", dbconsumer_free},