NS-3 based Named Data Networking (NDN) simulator
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buffer-stream.hpp
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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#ifndef NDN_ENCODING_BUFFER_STREAM_HPP
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#define NDN_ENCODING_BUFFER_STREAM_HPP
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#include "
buffer.hpp
"
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#include <boost/iostreams/detail/ios.hpp>
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#include <boost/iostreams/categories.hpp>
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#include <boost/iostreams/stream.hpp>
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namespace
ndn
{
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namespace
iostreams
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{
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class
buffer_append_device
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{
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public
:
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typedef
char
char_type;
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typedef
boost::iostreams::sink_tag category;
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buffer_append_device(Buffer& container)
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: m_container(container)
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{
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}
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std::streamsize
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write(
const
char_type* s, std::streamsize n)
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{
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std::copy(s, s+n, std::back_inserter(m_container));
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return
n;
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}
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protected
:
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Buffer& m_container;
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};
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}
// iostreams
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class
OBufferStream
:
public
boost::iostreams::stream<iostreams::buffer_append_device>
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{
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public
:
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OBufferStream
()
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: m_buffer(make_shared<
Buffer
>())
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, m_device(*m_buffer)
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{
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open(m_device);
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}
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shared_ptr<Buffer>
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buf
()
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{
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flush();
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return
m_buffer;
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}
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private
:
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BufferPtr
m_buffer;
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iostreams::buffer_append_device m_device;
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};
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}
// ndn
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#endif // NDN_ENCODING_BUFFER_STREAM_HPP
ndn
Copyright (c) 2011-2015 Regents of the University of California.
Definition:
ndn-strategy-choice-helper.hpp:34
ndn::BufferPtr
shared_ptr< Buffer > BufferPtr
Definition:
buffer.hpp:35
ndn::OBufferStream::buf
shared_ptr< Buffer > buf()
Flush written data to the stream and return shared pointer to the underlying buffer.
Definition:
buffer-stream.hpp:96
ndn::OBufferStream::OBufferStream
OBufferStream()
Default constructor.
Definition:
buffer-stream.hpp:85
buffer.hpp
ndn::OBufferStream
Class implementing interface similar to ostringstream, but to construct ndn::Buffer.
Definition:
buffer-stream.hpp:79
ndn::Buffer
Class representing a general-use automatically managed/resized buffer.
Definition:
buffer.hpp:44
ndnSIM
ndn-cxx
src
encoding
buffer-stream.hpp
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