mirror of https://github.com/minetest/minetest.git
148 lines
3.7 KiB
C++
148 lines
3.7 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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Copyright (C) 2017 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "lua_api/l_storage.h"
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#include "l_internal.h"
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#include "content/mods.h"
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#include "server.h"
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int ModApiStorage::l_get_mod_storage(lua_State *L)
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{
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lua_rawgeti(L, LUA_REGISTRYINDEX, CUSTOM_RIDX_CURRENT_MOD_NAME);
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if (!lua_isstring(L, -1)) {
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return 0;
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}
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std::string mod_name = lua_tostring(L, -1);
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ModMetadata *store = new ModMetadata(mod_name);
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if (IGameDef *gamedef = getGameDef(L)) {
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store->load(gamedef->getModStoragePath());
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gamedef->registerModStorage(store);
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} else {
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assert(false); // this should not happen
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}
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StorageRef::create(L, store);
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int object = lua_gettop(L);
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lua_pushvalue(L, object);
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return 1;
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}
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void ModApiStorage::Initialize(lua_State *L, int top)
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{
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API_FCT(get_mod_storage);
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}
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StorageRef::StorageRef(ModMetadata *object):
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m_object(object)
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{
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}
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void StorageRef::create(lua_State *L, ModMetadata *object)
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{
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StorageRef *o = new StorageRef(object);
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*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
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luaL_getmetatable(L, className);
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lua_setmetatable(L, -2);
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}
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int StorageRef::gc_object(lua_State *L)
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{
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StorageRef *o = *(StorageRef **)(lua_touserdata(L, 1));
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// Server side
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if (IGameDef *gamedef = getGameDef(L))
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gamedef->unregisterModStorage(getobject(o)->getModName());
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delete o;
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return 0;
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}
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void StorageRef::Register(lua_State *L)
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{
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lua_newtable(L);
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int methodtable = lua_gettop(L);
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luaL_newmetatable(L, className);
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int metatable = lua_gettop(L);
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lua_pushliteral(L, "__metatable");
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lua_pushvalue(L, methodtable);
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lua_settable(L, metatable); // hide metatable from Lua getmetatable()
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lua_pushliteral(L, "metadata_class");
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lua_pushlstring(L, className, strlen(className));
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lua_settable(L, metatable);
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lua_pushliteral(L, "__index");
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lua_pushvalue(L, methodtable);
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lua_settable(L, metatable);
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lua_pushliteral(L, "__gc");
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lua_pushcfunction(L, gc_object);
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lua_settable(L, metatable);
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lua_pushliteral(L, "__eq");
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lua_pushcfunction(L, l_equals);
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lua_settable(L, metatable);
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lua_pop(L, 1); // drop metatable
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luaL_openlib(L, 0, methods, 0); // fill methodtable
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lua_pop(L, 1); // drop methodtable
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}
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StorageRef* StorageRef::checkobject(lua_State *L, int narg)
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{
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luaL_checktype(L, narg, LUA_TUSERDATA);
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void *ud = luaL_checkudata(L, narg, className);
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if (!ud) luaL_typerror(L, narg, className);
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return *(StorageRef**)ud; // unbox pointer
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}
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ModMetadata* StorageRef::getobject(StorageRef *ref)
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{
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ModMetadata *co = ref->m_object;
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return co;
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}
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Metadata* StorageRef::getmeta(bool auto_create)
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{
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return m_object;
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}
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void StorageRef::clearMeta()
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{
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m_object->clear();
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}
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const char StorageRef::className[] = "StorageRef";
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const luaL_Reg StorageRef::methods[] = {
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luamethod(MetaDataRef, get_string),
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luamethod(MetaDataRef, set_string),
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luamethod(MetaDataRef, get_int),
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luamethod(MetaDataRef, set_int),
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luamethod(MetaDataRef, get_float),
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luamethod(MetaDataRef, set_float),
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luamethod(MetaDataRef, to_table),
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luamethod(MetaDataRef, from_table),
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luamethod(MetaDataRef, equals),
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{0,0}
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};
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