JavaVirtualMachine.h++

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/* ---------------------------------------------------------------------------
   commonc++ - A C++ Common Class Library
   Copyright (C) 2005-2014  Mark A Lindner

   This file is part of commonc++.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with this library; if not, write to the Free
   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   ---------------------------------------------------------------------------
*/

#ifndef __ccxx_JavaVirtualMachine_hxx
#define __ccxx_JavaVirtualMachine_hxx

#include <commonc++/Common.h++>
#include <commonc++/Exception.h++>
#include <commonc++/SearchPath.h++>
#include <commonc++/ThreadLocal.h++>
#include <commonc++/JavaException.h++>
#include <commonc++/JavaContext.h++>

#include <jni.h>

namespace ccxx {

class COMMONCPPJVM_API JavaVirtualMachine
{
 public:

  JavaVirtualMachine(const SearchPath& classPath = SearchPath::empty,
                     const SearchPath& linkerPath = SearchPath::empty,
                     uint_t initialHeapSize = 0, uint_t maxHeapSize = 0,
                     bool server = false, bool verbose = false,
                     bool nojit = false);

  JavaVirtualMachine(JavaVM* jvm);

  ~JavaVirtualMachine();

  JavaContext attachThread();

  void detachThread();

  inline bool isVerbose() const
  { return(_verbose); }

 private:

  class JavaContextPtr : public ThreadLocal<JavaContext>
  {
   protected:

    JavaContext* initialValue()
    { return(new JavaContext(NULL)); }
  };

  JavaVM* _jvm;
  JavaContextPtr _context;
  bool _verbose;

  CCXX_COPY_DECLS(JavaVirtualMachine);
};

} // namespace ccxx

#endif // __ccxx_JavaVirtualMachine_hxx