fbuffer.hpp

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//
// MessagePack for C++ FILE* buffer adaptor
//
// Copyright (C) 2013 Vladimir Volodko
//
//    Distributed under the Boost Software License, Version 1.0.
//    (See accompanying file LICENSE_1_0.txt or copy at
//    http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef MSGPACK_V1_FBUFFER_HPP
#define MSGPACK_V1_FBUFFER_HPP
 
#include "msgpack/v1/fbuffer_decl.hpp"
#include "msgpack/assert.hpp"
 
#include <cstdio>
#include <stdexcept>
 
namespace msgpack {

MSGPACK_API_VERSION_NAMESPACE(v1) {
 
class fbuffer {
public:
    explicit fbuffer(FILE* file) : m_file(file) { }
 
public:
    void write(const char* buf, unsigned int len)
    {
        MSGPACK_ASSERT(buf || len == 0);
        if (!buf) return;
        if (len == 0) return;
        if (1 != fwrite(buf, len, 1, m_file)) {
            throw std::runtime_error("fwrite() failed");
        }
    }
 
    FILE* file() const
    {
        return m_file;
    }
 
#if defined(MSGPACK_USE_CPP03)
private:
    fbuffer(const fbuffer&);
    fbuffer& operator=(const fbuffer&);
#else  // defined(MSGPACK_USE_CPP03)
    fbuffer(const fbuffer&) = delete;
    fbuffer& operator=(const fbuffer&) = delete;
#endif // defined(MSGPACK_USE_CPP03)
 
private:
    FILE* m_file;
};

}  // MSGPACK_API_VERSION_NAMESPACE(v1)
 
}  // namespace msgpack
 
#endif // MSGPACK_V1_FBUFFER_HPP