blocxx
BaseStreamBuffer.hpp
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32
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38
39#ifndef BLOCXX_BASESTREAMBUFFER_HPP_INCLUDE_GUARD_
40#define BLOCXX_BASESTREAMBUFFER_HPP_INCLUDE_GUARD_
41#include "blocxx/BLOCXX_config.h"
42
43#ifdef BLOCXX_HAVE_STREAMBUF
44#include <streambuf>
45#else
46#include <streambuf.h>
47#endif
48
49// The classes and functions defined in this file are not meant for general
50// use, they are internal implementation details. They may change at any time.
51
52namespace BLOCXX_NAMESPACE
53{
54
55const size_t BASE_BUF_SIZE = 256;
56const size_t HTTP_BUF_SIZE = 4096;
57class BLOCXX_COMMON_API BaseStreamBuffer : public std::streambuf
58{
59public:
66
71 BaseStreamBuffer(EDirectionFlag direction, size_t bufSize = BASE_BUF_SIZE);
72
74protected:
75 // for input
76 int underflow();
77 //int pbackfail(int c);
78 // for output
79 std::streamsize xsputn(const char* s, std::streamsize n);
80 virtual int overflow(int c);
81 virtual int sync();
82 virtual void initBuffers();
83 virtual void initGetBuffer();
84 virtual void initPutBuffer();
85 // meant to be overwritten (at least one of them)
93 virtual int buffer_to_device(const char* c, int n);
94
105 virtual int buffer_from_device(char* c, int n);
106private:
107 std::streamsize m_bufSize;
110 int buffer_in();
111 int buffer_out();
112 // prohibit copying and assigning
113 // NO IMPLEMENTATION
116};
117
118} // end namespace BLOCXX_NAMESPACE
119
120#endif
BaseStreamBuffer & operator=(const BaseStreamBuffer &arg)
BaseStreamBuffer(const BaseStreamBuffer &arg)
BaseStreamBuffer(EDirectionFlag direction, size_t bufSize=BASE_BUF_SIZE)
Create a base stream buffer.
Taken from RFC 1321.
const size_t HTTP_BUF_SIZE
const size_t BASE_BUF_SIZE