buffer-stream.cpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013-2022 Regents of the University of California.
 *
 * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
 *
 * ndn-cxx 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 3 of the License, or (at your option) any later version.
 *
 * ndn-cxx 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 copies of the GNU General Public License and GNU Lesser
 * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
 * <http://www.gnu.org/licenses/>.
 *
 * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
 */
 
#include "ndn-cxx/encoding/buffer-stream.hpp"
 
namespace ndn {
namespace detail {
 
BufferSink::BufferSink(Buffer& container)
  : m_container(container)
{
}
 
std::streamsize
BufferSink::write(const char_type* s, std::streamsize n)
{
  m_container.insert(m_container.end(), s, s + n);
  return n;
}
 
} // namespace detail
 
OBufferStream::OBufferStream()
  : m_buffer(std::make_shared<Buffer>())
{
  open(detail::BufferSink{*m_buffer});
}
 
OBufferStream::~OBufferStream() noexcept
{
  try {
    close();
  }
  catch (...) {
    // ignore
  }
}
 
shared_ptr<Buffer>
OBufferStream::buf()
{
  if (is_open()) {
    flush();
  }
  return m_buffer;
}
 
} // namespace ndn