73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
|
#include <vanetza/common/byte_view.hpp>
|
||
|
|
#include <vanetza/common/byte_buffer_convertible.hpp>
|
||
|
|
#include <cassert>
|
||
|
|
#include <limits>
|
||
|
|
|
||
|
|
namespace vanetza
|
||
|
|
{
|
||
|
|
|
||
|
|
namespace
|
||
|
|
{
|
||
|
|
|
||
|
|
boost::iterator_range<byte_view_iterator>
|
||
|
|
make_safe_range(const ByteBuffer::const_iterator& begin, const ByteBuffer::const_iterator& end)
|
||
|
|
{
|
||
|
|
if (begin < end) {
|
||
|
|
byte_view_iterator vbegin { begin };
|
||
|
|
byte_view_iterator vend { std::next(vbegin, std::distance(begin, end)) };
|
||
|
|
return boost::iterator_range<byte_view_iterator> { vbegin, vend };
|
||
|
|
} else {
|
||
|
|
byte_view_iterator empty;
|
||
|
|
return boost::iterator_range<byte_view_iterator> { empty, empty };
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
byte_view_range::byte_view_range(const ByteBuffer::const_iterator& begin, const ByteBuffer::const_iterator& end) :
|
||
|
|
iterator_range(make_safe_range(begin, end))
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
byte_view_range::byte_view_range(const byte_view_iterator& begin, const byte_view_iterator& end) :
|
||
|
|
iterator_range(begin, end)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
byte_view_range::byte_view_range(ByteBuffer&& _buffer) :
|
||
|
|
iterator_range(make_safe_range(_buffer.begin(), _buffer.end())), buffer(std::move(_buffer))
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
ByteBuffer::const_pointer byte_view_range::data() const
|
||
|
|
{
|
||
|
|
auto begin = this->begin();
|
||
|
|
return begin != this->end() ? begin.raw() : nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
ByteBuffer::value_type byte_view_range::operator[](size_type pos) const
|
||
|
|
{
|
||
|
|
static_assert(std::numeric_limits<size_type>::is_signed == false, "size_type shall be unsigned");
|
||
|
|
assert(pos < size());
|
||
|
|
return begin()[pos];
|
||
|
|
}
|
||
|
|
|
||
|
|
byte_view_range create_byte_view(ByteBuffer&& buffer)
|
||
|
|
{
|
||
|
|
return byte_view_range { std::move(buffer) };
|
||
|
|
}
|
||
|
|
|
||
|
|
byte_view_range create_byte_view(const ByteBuffer& buffer)
|
||
|
|
{
|
||
|
|
return byte_view_range { buffer.begin(), buffer.end() };
|
||
|
|
}
|
||
|
|
|
||
|
|
byte_view_range create_byte_view(const ByteBufferConvertible& convertible)
|
||
|
|
{
|
||
|
|
ByteBuffer buffer;
|
||
|
|
convertible.convert(buffer);
|
||
|
|
return byte_view_range { std::move(buffer) };
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace vanetza
|