src/script/cpp_api/s_internal.h

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 /******************************************************************************/
  21 /******************************************************************************/
  22 /* WARNING!!!! do NOT add this header in any include file or any code file    */
  23 /*             not being a modapi file!!!!!!!!                                */
  24 /******************************************************************************/
  25 /******************************************************************************/
  26
  27 #ifndef S_INTERNAL_H_
  28 #define S_INTERNAL_H_
  29
  30 #include "common/c_internal.h"
  31 #include "cpp_api/s_base.h"
  32
  33 #ifdef SCRIPTAPI_LOCK_DEBUG
  34 #include "debug.h" // assert()
  35 class LockChecker {
  36 public:
  37         LockChecker(bool* variable) {
  38                 assert(*variable == false);
  39
  40                 m_variable = variable;
  41                 *m_variable = true;
  42         }
  43         ~LockChecker() {
  44                 *m_variable = false;
  45         }
  46 private:
  47 bool* m_variable;
  48 };
  49
  50 #define SCRIPTAPI_LOCK_CHECK LockChecker(&(this->m_locked))
  51 #else
  52 #define SCRIPTAPI_LOCK_CHECK while(0)
  53 #endif
  54
  55 #define SCRIPTAPI_PRECHECKHEADER                                               \
  56                 JMutexAutoLock(this->m_luastackmutex);                                 \
  57                 SCRIPTAPI_LOCK_CHECK;                                                  \
  58                 realityCheck();                                                        \
  59                 lua_State *L = getStack();                                             \
  60                 assert(lua_checkstack(L, 20));                                         \
  61                 StackUnroller stack_unroller(L);
  62
  63 #endif /* S_INTERNAL_H_ */