139 lines
4.1 KiB
C++
Executable File
139 lines
4.1 KiB
C++
Executable File
/*
|
|
|
|
Copyright (c) 2003, Arvid Norberg
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
* Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in
|
|
the documentation and/or other materials provided with the distribution.
|
|
* Neither the name of the author nor the names of its
|
|
contributors may be used to endorse or promote products derived
|
|
from this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*/
|
|
|
|
#ifndef TORRENT_IO_HPP_INCLUDED
|
|
#define TORRENT_IO_HPP_INCLUDED
|
|
|
|
namespace libtorrent
|
|
{
|
|
namespace detail
|
|
{
|
|
template <class T> struct type {};
|
|
|
|
// reads an integer from a byte stream
|
|
// in big endian byte order and converts
|
|
// it to native endianess
|
|
template <class T, class InIt>
|
|
inline T read_impl(InIt& start, type<T>)
|
|
{
|
|
T ret = 0;
|
|
for (int i = 0; i < (int)sizeof(T); ++i)
|
|
{
|
|
ret <<= 8;
|
|
ret |= static_cast<unsigned char>(*start);
|
|
++start;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
template <class T, class OutIt>
|
|
inline void write_impl(T val, OutIt& start)
|
|
{
|
|
for (int i = (int)sizeof(T)-1; i >= 0; --i)
|
|
{
|
|
*start = static_cast<unsigned char>((val >> (i * 8)) & 0xff);
|
|
++start;
|
|
}
|
|
}
|
|
|
|
// -- adaptors
|
|
|
|
template <class InIt>
|
|
boost::int64_t read_int64(InIt& start)
|
|
{ return read_impl(start, type<boost::int64_t>()); }
|
|
|
|
template <class InIt>
|
|
boost::uint64_t read_uint64(InIt& start)
|
|
{ return read_impl(start, type<boost::uint64_t>()); }
|
|
|
|
template <class InIt>
|
|
boost::uint32_t read_uint32(InIt& start)
|
|
{ return read_impl(start, type<boost::uint32_t>()); }
|
|
|
|
template <class InIt>
|
|
boost::int32_t read_int32(InIt& start)
|
|
{ return read_impl(start, type<boost::int32_t>()); }
|
|
|
|
template <class InIt>
|
|
boost::int16_t read_int16(InIt& start)
|
|
{ return read_impl(start, type<boost::int16_t>()); }
|
|
|
|
template <class InIt>
|
|
boost::uint16_t read_uint16(InIt& start)
|
|
{ return read_impl(start, type<boost::uint16_t>()); }
|
|
|
|
template <class InIt>
|
|
boost::int8_t read_int8(InIt& start)
|
|
{ return read_impl(start, type<boost::int8_t>()); }
|
|
|
|
template <class InIt>
|
|
boost::uint8_t read_uint8(InIt& start)
|
|
{ return read_impl(start, type<boost::uint8_t>()); }
|
|
|
|
|
|
template <class OutIt>
|
|
void write_uint64(boost::uint64_t val, OutIt& start)
|
|
{ write_impl(val, start); }
|
|
|
|
template <class OutIt>
|
|
void write_int64(boost::int64_t val, OutIt& start)
|
|
{ write_impl(val, start); }
|
|
|
|
template <class OutIt>
|
|
void write_uint32(boost::uint32_t val, OutIt& start)
|
|
{ write_impl(val, start); }
|
|
|
|
template <class OutIt>
|
|
void write_int32(boost::int32_t val, OutIt& start)
|
|
{ write_impl(val, start); }
|
|
|
|
template <class OutIt>
|
|
void write_uint16(boost::uint16_t val, OutIt& start)
|
|
{ write_impl(val, start); }
|
|
|
|
template <class OutIt>
|
|
void write_int16(boost::int16_t val, OutIt& start)
|
|
{ write_impl(val, start); }
|
|
|
|
template <class OutIt>
|
|
void write_uint8(boost::uint8_t val, OutIt& start)
|
|
{ write_impl(val, start); }
|
|
|
|
template <class OutIt>
|
|
void write_int8(boost::int8_t val, OutIt& start)
|
|
{ write_impl(val, start); }
|
|
|
|
}
|
|
}
|
|
|
|
#endif // TORRENT_IO_HPP_INCLUDED
|