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- /*
- Minetest
- Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- /******************************************************************************/
- /******************************************************************************/
- /* WARNING!!!! do NOT add this header in any include file or any code file */
- /* not being a modapi file!!!!!!!! */
- /******************************************************************************/
- /******************************************************************************/
- #pragma once
- #include <thread>
- #include "common/c_internal.h"
- #include "cpp_api/s_base.h"
- #include "threading/mutex_auto_lock.h"
- #ifdef SCRIPTAPI_LOCK_DEBUG
- #include <cassert>
- class LockChecker {
- public:
- LockChecker(int *recursion_counter, std::thread::id *owning_thread)
- {
- m_lock_recursion_counter = recursion_counter;
- m_owning_thread = owning_thread;
- m_original_level = *recursion_counter;
- if (*m_lock_recursion_counter > 0) {
- assert(*m_owning_thread == std::this_thread::get_id());
- } else {
- *m_owning_thread = std::this_thread::get_id();
- }
- (*m_lock_recursion_counter)++;
- }
- ~LockChecker()
- {
- assert(*m_owning_thread == std::this_thread::get_id());
- assert(*m_lock_recursion_counter > 0);
- (*m_lock_recursion_counter)--;
- assert(*m_lock_recursion_counter == m_original_level);
- }
- private:
- int *m_lock_recursion_counter;
- int m_original_level;
- std::thread::id *m_owning_thread;
- };
- #define SCRIPTAPI_LOCK_CHECK \
- LockChecker scriptlock_checker( \
- &this->m_lock_recursion_count, \
- &this->m_owning_thread)
- #else
- #define SCRIPTAPI_LOCK_CHECK while(0)
- #endif
- #define SCRIPTAPI_PRECHECKHEADER \
- RecursiveMutexAutoLock scriptlock(this->m_luastackmutex); \
- SCRIPTAPI_LOCK_CHECK; \
- realityCheck(); \
- lua_State *L = getStack(); \
- assert(lua_checkstack(L, 20)); \
- StackUnroller stack_unroller(L);
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