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/*
* Copyright (C) 2014 Tommi Maekitalo
*
* 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
*/
#include <tnt/chunkedostream.h>
namespace tnt
{
int ChunkedWriter::sync()
{
static const char hex[] = "0123456789ABCDEF";
unsigned size = pptr() - pbase();
if (size > 0)
{
unsigned b = 0;
while ((static_cast<unsigned>(0xf << b)) < size)
b += 4;
while (b > 0)
{
_obuf->sputc(hex[(size >> b) & 0xf]);
b -= 4;
}
_obuf->sputc(hex[size & 0xf]);
_obuf->sputc('\r');
_obuf->sputc('\n');
_obuf->sputn(pbase(), size);
_obuf->sputc('\r');
_obuf->sputc('\n');
setp(_buffer, _buffer + _bufsize);
_bytesWritten += size;
return _obuf->pubsync();
}
return 0;
}
ChunkedWriter::int_type ChunkedWriter::overflow(int_type ch)
{
if (_buffer == 0)
{
_buffer = new char[_bufsize];
setp(_buffer, _buffer + _bufsize);
}
else
{
sync();
}
if (ch != traits_type::eof())
sputc(ch);
return ch;
}
ChunkedWriter::int_type ChunkedWriter::underflow()
{ return traits_type::eof(); }
void ChunkedWriter::finish()
{
sync();
_obuf->sputn("0\r\n", 3);
}
}
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