gr_file_sink.h

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/* -*- c++ -*- */
/*
 * Copyright 2004 Free Software Foundation, Inc.
 * 
 * This file is part of GNU Radio
 * 
 * GNU Radio is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 * 
 * GNU Radio 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with GNU Radio; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#ifndef INCLUDED_GR_FILE_SINK_H
#define INCLUDED_GR_FILE_SINK_H

#include <gr_sync_block.h>
#include <omnithread.h>

class gr_file_sink;
typedef boost::shared_ptr<gr_file_sink> gr_file_sink_sptr;

gr_file_sink_sptr gr_make_file_sink(size_t itemsize, const char *filename);

class gr_file_sink : public gr_sync_block
{
  friend gr_file_sink_sptr gr_make_file_sink(size_t itemsize, const char *filename);

 private:
  size_t        d_itemsize;
  void         *d_fp;           // current FILE pointer
  void         *d_new_fp;       // new FILE pointer
  bool          d_updated;      // is there a new FILE pointer?
  omni_mutex    d_mutex;

 protected:
  gr_file_sink(size_t itemsize, const char *filename);

 public:
  ~gr_file_sink();

  bool open(const char *filename);

  void close();

  int work(int noutput_items,
           gr_vector_const_void_star &input_items,
           gr_vector_void_star &output_items);
};


#endif /* INCLUDED_GR_FILE_SINK_H */

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