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#pragma once
#include "std/cstdint.hpp"
#include "std/iostream.hpp"
class Reader;
class Writer;
class BaseStreamBuf : public std::streambuf
{
public:
typedef std::streambuf::traits_type traits_type;
typedef std::streambuf::char_type char_type;
typedef std::streambuf::int_type int_type;
};
class ReaderStreamBuf : public BaseStreamBuf
{
Reader * m_p;
uint64_t m_pos, m_size;
public:
/// Takes the ownership of p. Reader should be allocated in dynamic memory.
ReaderStreamBuf(Reader * p);
virtual ~ReaderStreamBuf();
private:
virtual std::streamsize xsgetn(char_type * s, std::streamsize n);
virtual int_type underflow();
char m_buf[1];
};
class WriterStreamBuf : public BaseStreamBuf
{
Writer * m_writer;
public:
/// Takes the ownership of p. Writer should be allocated in dynamic memory.
WriterStreamBuf(Writer * p) : m_writer(p) {}
virtual ~WriterStreamBuf();
private:
virtual std::streamsize xsputn(char_type const * s, std::streamsize n);
virtual int_type overflow(int_type c);
virtual int sync();
};
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