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/* -*- c++ -*- */
/* Copyright 2012 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 3, 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., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_PACKET_HEADERGENERATOR_BB_H
#define INCLUDED_PACKET_HEADERGENERATOR_BB_H
#include <digital/api.h>
#include <gr_tagged_stream_block.h>
#include <digital/packet_header_default.h>
namespace gr {
namespace digital {
/*!
* \brief Generates a header for a tagged, streamed packet.
* \ingroup digital
*
* Input: A tagged stream. The first element must have a tag with the key
* specified in len_tag_key, which hold the exact number of elements
* in the PDU.
* Output: An tagged stream of length header_len. The output is determined
* by a header formatter.
*/
class DIGITAL_API packet_headergenerator_bb : virtual public gr_tagged_stream_block
{
public:
typedef boost::shared_ptr<packet_headergenerator_bb> sptr;
static sptr make(const packet_header_default::sptr &header_formatter);
static sptr make(
long header_len,
const std::string &len_tag_key = "packet_len");
};
} // namespace digital
} // namespace gr
#endif /* INCLUDED_PACKET_HEADERGENERATOR_BB_H */
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