1// Copyright 2011 Google Inc. 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: 7// 8// * Redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer. 10// * Redistributions in binary form must reproduce the above copyright 11// notice, this list of conditions and the following disclaimer in the 12// documentation and/or other materials provided with the distribution. 13// * Neither the name of Google Inc. nor the names of its contributors 14// may be used to endorse or promote products derived from this software 15// without specific prior written permission. 16// 17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29#include "c_gate.hpp" 30#include "state.ipp" 31 32 33/// Creates a new gateway to an existing C++ Lua state. 34/// 35/// \param state_ The state to connect to. This object must remain alive while 36/// the newly-constructed state_c_gate is alive. 37lutok::state_c_gate::state_c_gate(state& state_) : 38 _state(state_) 39{ 40} 41 42 43/// Destructor. 44/// 45/// Destroying this object has no implications on the life cycle of the Lua 46/// state. Only the corresponding state object controls when the Lua state is 47/// closed. 48lutok::state_c_gate::~state_c_gate(void) 49{ 50} 51 52 53/// Creates a C++ state for a C Lua state. 54/// 55/// \warning The created state object does NOT own the C state. You must take 56/// care to properly destroy the input lua_State when you are done with it to 57/// not leak resources. 58/// 59/// \param raw_state The raw state to wrap temporarily. 60/// 61/// \return The wrapped state without strong ownership on the input state. 62lutok::state 63lutok::state_c_gate::connect(lua_State* raw_state) 64{ 65 return state(static_cast< void* >(raw_state)); 66} 67 68 69/// Returns the C native Lua state. 70/// 71/// \return A native lua_State object holding the Lua C API state. 72lua_State* 73lutok::state_c_gate::c_state(void) 74{ 75 return static_cast< lua_State* >(_state.raw_state()); 76} 77