Line data    Source code

       1             : /* src/vm/jit/optimizing/recompiler.hpp - recompilation system
       2             : 
       3             :    Copyright (C) 1996-2005, 2006, 2007, 2008
       4             :    CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
       5             : 
       6             :    This file is part of CACAO.
       7             : 
       8             :    This program is free software; you can redistribute it and/or
       9             :    modify it under the terms of the GNU General Public License as
      10             :    published by the Free Software Foundation; either version 2, or (at
      11             :    your option) any later version.
      12             : 
      13             :    This program is distributed in the hope that it will be useful, but
      14             :    WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      16             :    General Public License for more details.
      17             : 
      18             :    You should have received a copy of the GNU General Public License
      19             :    along with this program; if not, write to the Free Software
      20             :    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
      21             :    02110-1301, USA.
      22             : 
      23             : */
      24             : 
      25             : 
      26             : #ifndef _RECOMPILER_HPP
      27             : #define _RECOMPILER_HPP
      28             : 
      29             : #include "config.h"
      30             : #include <queue>
      31             : #include "threads/condition.hpp"
      32             : #include "threads/mutex.hpp"
      33             : 
      34             : struct methodinfo;
      35             : 
      36             : /**
      37             :  * Thread for JIT recompilations.
      38             :  */
      39             : class Recompiler {
      40             : private:
      41             :         Mutex                   _mutex;
      42             :         Condition               _cond;
      43             :         std::queue<methodinfo*> _methods;
      44             :         bool                    _run;       ///< Flag to stop worker thread.
      45             : 
      46             :         static void thread();               ///< Worker thread.
      47             : 
      48             : public:
      49         165 :         Recompiler() : _run(true) {}
      50             :         ~Recompiler();
      51             : 
      52             :         bool start();                       ///< Start the worker thread.
      53             :         void queue_method(methodinfo* m);   ///< Queue a method for recompilation.
      54             : };
      55             : 
      56             : 
      57             : /* list_method_entry **********************************************************/
      58             : 
      59             : struct list_method_entry {
      60             :    methodinfo *m;
      61             : // listnode_t  linkage;
      62             : };
      63             : 
      64             : 
      65             : /* function prototypes ********************************************************/
      66             : 
      67             : void Recompiler_queue_method(methodinfo *m);
      68             : 
      69             : #endif // _RECOMPILER_HPP
      70             : 
      71             : 
      72             : /*
      73             :  * These are local overrides for various environment variables in Emacs.
      74             :  * Please do not remove this and leave it at the end of the file, where
      75             :  * Emacs will automagically detect them.
      76             :  * ---------------------------------------------------------------------
      77             :  * Local variables:
      78             :  * mode: c++
      79             :  * indent-tabs-mode: t
      80             :  * c-basic-offset: 4
      81             :  * tab-width: 4
      82             :  * End:
      83             :  * vim:noexpandtab:sw=4:ts=4:
      84             :  */