/* Copyright (C) 2015-2017 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz> This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ /** * Bindings to engine services, see \a https://www.lua.org/manual/5.2/manual.html#luaL_newlib for the reference. */ #pragma once #include <lua.h> #include <lualib.h> #include <lauxlib.h> #include "daemon/engine.h" /** @internal Compatibility wrapper for Lua 5.0 - 5.2 */ #if LUA_VERSION_NUM >= 502 #define register_lib(L, name, lib) \ luaL_newlib((L), (lib)) #else #define lua_rawlen(L, obj) \ lua_objlen((L), (obj)) #define register_lib(L, name, lib) \ luaL_openlib((L), (name), (lib), 0) #endif #if !LUA_HAS_SETFUNCS /* Adapted from Lua 5.2.0 */ static inline void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup) { luaL_checkstack(L, nup+1, "too many upvalues"); for (; l->name != NULL; l++) { /* fill the table with given functions */ int i; lua_pushstring(L, l->name); for (i = 0; i < nup; i++) /* copy upvalues to the top */ lua_pushvalue(L, -(nup+1)); lua_pushcclosure(L, l->func, nup); /* closure with those upvalues */ lua_settable(L, -(nup + 3)); } lua_pop(L, nup); /* remove upvalues */ } #endif /** * Load 'modules' package. * @param L scriptable * @return number of packages to load */ int lib_modules(lua_State *L); /** * Load 'net' package. * @param L scriptable * @return number of packages to load */ int lib_net(lua_State *L); /** * Load 'cache' package. * @param L scriptable * @return number of packages to load */ int lib_cache(lua_State *L); /** * Load 'event' package. * @param L scriptable * @return number of packages to load */ int lib_event(lua_State *L); /** * Load worker API. * @param L scriptable * @return number of packages to load */ int lib_worker(lua_State *L);