/usr/include/cxxtools/streambuffer.h is in libcxxtools-dev 2.0-4ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 | /*
* Copyright (C) 2005 Marc Boris Duerner
*
* This 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 2.1 of the License, or (at your option) any later version.
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Library
* General Public License.
*
* This 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 a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef cxxtools_System_StreamBuffer_h
#define cxxtools_System_StreamBuffer_h
#include <ios>
#include <streambuf>
#include <cxxtools/api.h>
#include <cxxtools/iodevice.h>
namespace cxxtools {
template <typename CharT>
class BasicStreamBuffer : public std::basic_streambuf<CharT>
{
public:
std::streamsize speekn(CharT* buffer, std::streamsize size)
{ return this->xspeekn(buffer, size); }
std::streamsize out_avail()
{
if( this->pptr() )
return this->pptr() - this->pbase();
return this->showfull();
}
protected:
virtual std::streamsize xspeekn(CharT* buffer, std::streamsize size)
{
if(size == 0)
return 0;
buffer[0] = this->sgetc();
return 1;
}
virtual std::streamsize showfull()
{ return 0; }
};
//! @brief A stream buffer for IODevices with linear buffer area
class CXXTOOLS_API StreamBuffer : public BasicStreamBuffer<char>
, public Connectable
{
public:
//! @brief Contructs an IOBuffer for an IODevice
explicit StreamBuffer(IODevice& ioDevice, size_t bufferSize = 8192, bool extend = false);
//! @brief Default constructor
explicit StreamBuffer(size_t bufferSize = 8192, bool extend = false);
~StreamBuffer();
void attach(IODevice& ioDevice);
IODevice* device();
void beginRead();
void endRead();
size_t beginWrite();
size_t endWrite();
void discard();
Signal<StreamBuffer&> inputReady;
Signal<StreamBuffer&> outputReady;
protected:
virtual int sync();
virtual std::streamsize showfull();
virtual std::streamsize xspeekn(char* buffer, std::streamsize size);
virtual int_type underflow();
virtual int_type overflow(int_type ch);
virtual int_type pbackfail(int_type c);
/** @brief Alters the stream positions
*/
virtual pos_type seekoff(off_type offset, std::ios::seekdir sd, std::ios::openmode mode);
/** @brief Alters the stream positions
*/
virtual pos_type seekpos(pos_type p, std::ios::openmode mode );
private:
void onRead(IODevice& dev);
void onWrite(IODevice& dev);
private:
IODevice* _ioDevice;
size_t _ibufferSize;
char* _ibuffer;
std::size_t _obufferSize;
char* _obuffer;
const size_t _pbmax;
bool _oextend;
};
} // namespace cxxtools
#endif
|