/*
 *  ZThreads, a platform-independent, multi-threading and 
 *  synchronization library
 *
 *  Copyright (C) 2000-2003 Eric Crahen, See LGPL.TXT for details
 *
 *  This library 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 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#include "zthread/ThreadLocalImpl.h"
#include "ThreadImpl.h"

namespace ZThread {

  ThreadLocalImpl::ThreadLocalImpl() {}

  ThreadLocalImpl::~ThreadLocalImpl() {} 
  
  void ThreadLocalImpl::clearAll() {

    typedef ThreadImpl::ThreadLocalMap Map;
    Map& m = ThreadImpl::current()->getThreadLocalMap();
    
    m.clear();

  }

  void ThreadLocalImpl::clear() const {

    typedef ThreadImpl::ThreadLocalMap Map;
    Map& m = ThreadImpl::current()->getThreadLocalMap();
    
    Map::iterator i = m.find(this);
    if(i != m.end()) 
      m.erase(i);

  } 

  ThreadLocalImpl::ValuePtr ThreadLocalImpl::value( ValuePtr(*pfn)() ) const {
     
    typedef ThreadImpl::ThreadLocalMap Map;
    Map& m = ThreadImpl::current()->getThreadLocalMap();
    
    Map::iterator i = m.find(this);
    if(i != m.end()) 
      return i->second;
    
    m[ this ] = ValuePtr( pfn() );
    return m[ this ];

  }

} // namespace ZThread 
