2013-08-11 04:09:45 +02:00
|
|
|
/*
|
|
|
|
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!!!!!!!! */
|
|
|
|
/******************************************************************************/
|
|
|
|
/******************************************************************************/
|
|
|
|
|
2017-08-17 22:19:39 +02:00
|
|
|
#pragma once
|
2013-08-11 04:09:45 +02:00
|
|
|
|
2017-06-11 09:43:05 +02:00
|
|
|
#include <thread>
|
2013-08-11 04:09:45 +02:00
|
|
|
#include "common/c_internal.h"
|
|
|
|
#include "cpp_api/s_base.h"
|
2017-08-16 22:11:45 +02:00
|
|
|
#include "threading/mutex_auto_lock.h"
|
2013-08-11 04:09:45 +02:00
|
|
|
|
|
|
|
#ifdef SCRIPTAPI_LOCK_DEBUG
|
2017-08-18 19:25:07 +02:00
|
|
|
#include <cassert>
|
2015-10-31 21:31:43 +01:00
|
|
|
|
2013-08-11 04:09:45 +02:00
|
|
|
class LockChecker {
|
|
|
|
public:
|
2017-06-11 09:43:05 +02:00
|
|
|
LockChecker(int *recursion_counter, std::thread::id *owning_thread)
|
2015-10-31 21:31:43 +01:00
|
|
|
{
|
|
|
|
m_lock_recursion_counter = recursion_counter;
|
|
|
|
m_owning_thread = owning_thread;
|
|
|
|
m_original_level = *recursion_counter;
|
|
|
|
|
2017-06-11 09:43:05 +02:00
|
|
|
if (*m_lock_recursion_counter > 0) {
|
|
|
|
assert(*m_owning_thread == std::this_thread::get_id());
|
|
|
|
} else {
|
|
|
|
*m_owning_thread = std::this_thread::get_id();
|
|
|
|
}
|
2013-08-11 04:09:45 +02:00
|
|
|
|
2015-10-31 21:31:43 +01:00
|
|
|
(*m_lock_recursion_counter)++;
|
2013-08-11 04:09:45 +02:00
|
|
|
}
|
2015-10-31 21:31:43 +01:00
|
|
|
|
|
|
|
~LockChecker()
|
|
|
|
{
|
2017-06-11 09:43:05 +02:00
|
|
|
assert(*m_owning_thread == std::this_thread::get_id());
|
2015-10-31 21:31:43 +01:00
|
|
|
assert(*m_lock_recursion_counter > 0);
|
|
|
|
|
|
|
|
(*m_lock_recursion_counter)--;
|
|
|
|
|
|
|
|
assert(*m_lock_recursion_counter == m_original_level);
|
2013-08-11 04:09:45 +02:00
|
|
|
}
|
2015-10-31 21:31:43 +01:00
|
|
|
|
2013-08-11 04:09:45 +02:00
|
|
|
private:
|
2015-10-31 21:31:43 +01:00
|
|
|
int *m_lock_recursion_counter;
|
|
|
|
int m_original_level;
|
2017-06-11 09:43:05 +02:00
|
|
|
std::thread::id *m_owning_thread;
|
2013-08-11 04:09:45 +02:00
|
|
|
};
|
|
|
|
|
2015-10-31 21:31:43 +01:00
|
|
|
#define SCRIPTAPI_LOCK_CHECK \
|
|
|
|
LockChecker scriptlock_checker( \
|
|
|
|
&this->m_lock_recursion_count, \
|
|
|
|
&this->m_owning_thread)
|
|
|
|
|
2013-08-11 04:09:45 +02:00
|
|
|
#else
|
2015-10-31 21:31:43 +01:00
|
|
|
#define SCRIPTAPI_LOCK_CHECK while(0)
|
2013-08-11 04:09:45 +02:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#define SCRIPTAPI_PRECHECKHEADER \
|
2016-01-23 05:45:00 +01:00
|
|
|
RecursiveMutexAutoLock scriptlock(this->m_luastackmutex); \
|
2013-08-11 04:09:45 +02:00
|
|
|
SCRIPTAPI_LOCK_CHECK; \
|
|
|
|
realityCheck(); \
|
|
|
|
lua_State *L = getStack(); \
|
|
|
|
assert(lua_checkstack(L, 20)); \
|
|
|
|
StackUnroller stack_unroller(L);
|