/*
 * Software License Agreement (BSD License)
 *
 *  Copyright (c) 2008, Willow Garage, Inc.
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 *     with the distribution.
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 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
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#ifndef ROSCPP_ROSOUT_APPENDER_H
#define ROSCPP_ROSOUT_APPENDER_H

#include "log4cxx/appenderskeleton.h"
#include <boost/shared_ptr.hpp>
#include <boost/weak_ptr.hpp>

#include <roslib/Log.h>
#include <boost/thread.hpp>

namespace ros
{

class Publication;
typedef boost::shared_ptr<Publication> PublicationPtr;
typedef boost::weak_ptr<Publication> PublicationWPtr;

class ROSOutAppender : public log4cxx::AppenderSkeleton
{
public:
  ROSOutAppender();
  ~ROSOutAppender();

  const std::string& getLastError();

protected:
  virtual void append(const log4cxx::spi::LoggingEventPtr& event, log4cxx::helpers::Pool& pool);

  virtual void close() {}
  virtual bool requiresLayout() const { return false; }

  void logThread();

  std::string last_error_;

  typedef std::vector<roslib::LogPtr> V_Log;
  V_Log log_queue_;
  boost::mutex queue_mutex_;
  boost::condition_variable queue_condition_;
  bool shutting_down_;

  boost::thread publish_thread_;
};

LOG4CXX_PTR_DEF(ROSOutAppender);

} // namespace ros

#endif
