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/*
 * Copyright (c) 2005, Eric Crahen
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is furnished
 * to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#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