mirror of
https://github.com/Xahau/xahaud.git
synced 2025-12-06 17:27:52 +00:00
8b60ef9db4
9f10b11 Set version to 1.0.0-b28 195f974 Fix HTTP split parse edge case: 264fd41 Restyle async result constructions 572a0eb Split out and rename test stream classes 95b6646 Tidy up some WebSocket javadocs f6938d3 Set version to 1.0.0-b27 a6120cd Update copyright dates c7bfe7d Add documentation building instructions f6c91ce Tidy up tests and docs: f03985f Move basic_streambuf to streambuf.hpp (API Change): b8639a7 Invoke callback on pings and pongs (API Change): git-subtree-dir: src/beast git-subtree-split: 9f10b11eff58aeb793b673c8a8cb6e2bee3db621
124 lines
3.4 KiB
C++
124 lines
3.4 KiB
C++
//
|
|
// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
|
|
#ifndef BEAST_CONSUMING_BUFFERS_HPP
|
|
#define BEAST_CONSUMING_BUFFERS_HPP
|
|
|
|
#include <beast/core/buffer_concepts.hpp>
|
|
#include <boost/asio/buffer.hpp>
|
|
#include <cstdint>
|
|
#include <iterator>
|
|
#include <type_traits>
|
|
#include <utility>
|
|
|
|
namespace beast {
|
|
|
|
/** Adapter to trim the front of a `BufferSequence`.
|
|
|
|
This adapter wraps a buffer sequence to create a new sequence
|
|
which may be incrementally consumed. Bytes consumed are removed
|
|
from the front of the buffer. The underlying memory is not changed,
|
|
instead the adapter efficiently iterates through a subset of
|
|
the buffers wrapped.
|
|
|
|
The wrapped buffer is not modified, a copy is made instead.
|
|
Ownership of the underlying memory is not transferred, the application
|
|
is still responsible for managing its lifetime.
|
|
|
|
@tparam BufferSequence The buffer sequence to wrap.
|
|
*/
|
|
template<class BufferSequence>
|
|
class consuming_buffers
|
|
{
|
|
using iter_type =
|
|
typename BufferSequence::const_iterator;
|
|
|
|
BufferSequence bs_;
|
|
iter_type begin_;
|
|
iter_type end_;
|
|
std::size_t skip_ = 0;
|
|
|
|
template<class Deduced>
|
|
consuming_buffers(Deduced&& other, std::size_t nbegin)
|
|
: bs_(std::forward<Deduced>(other).bs_)
|
|
, begin_(std::next(bs_.begin(), nbegin))
|
|
, skip_(other.skip_)
|
|
{
|
|
}
|
|
|
|
public:
|
|
/** The type for each element in the list of buffers.
|
|
|
|
If the buffers in the underlying sequence are convertible to
|
|
`boost::asio::mutable_buffer`, then this type will be
|
|
`boost::asio::mutable_buffer`, else this type will be
|
|
`boost::asio::const_buffer`.
|
|
*/
|
|
#if GENERATING_DOCS
|
|
using value_type = ...;
|
|
#else
|
|
using value_type = typename std::conditional<
|
|
std::is_convertible<typename
|
|
std::iterator_traits<iter_type>::value_type,
|
|
boost::asio::mutable_buffer>::value,
|
|
boost::asio::mutable_buffer,
|
|
boost::asio::const_buffer>::type;
|
|
#endif
|
|
|
|
#if GENERATING_DOCS
|
|
/// A bidirectional iterator type that may be used to read elements.
|
|
using const_iterator = implementation_defined;
|
|
|
|
#else
|
|
class const_iterator;
|
|
|
|
#endif
|
|
|
|
/// Move constructor.
|
|
consuming_buffers(consuming_buffers&&);
|
|
|
|
/// Copy constructor.
|
|
consuming_buffers(consuming_buffers const&);
|
|
|
|
/// Move assignment.
|
|
consuming_buffers& operator=(consuming_buffers&&);
|
|
|
|
/// Copy assignment.
|
|
consuming_buffers& operator=(consuming_buffers const&);
|
|
|
|
/** Construct to represent a buffer sequence.
|
|
|
|
A copy of the buffer sequence is made. Ownership of the
|
|
underlying memory is not transferred or copied.
|
|
*/
|
|
explicit
|
|
consuming_buffers(BufferSequence const& buffers);
|
|
|
|
/// Get a bidirectional iterator to the first element.
|
|
const_iterator
|
|
begin() const;
|
|
|
|
/// Get a bidirectional iterator to one past the last element.
|
|
const_iterator
|
|
end() const;
|
|
|
|
/** Remove bytes from the beginning of the sequence.
|
|
|
|
@param n The number of bytes to remove. If this is
|
|
larger than the number of bytes remaining, all the
|
|
bytes remaining are removed.
|
|
*/
|
|
void
|
|
consume(std::size_t n);
|
|
};
|
|
|
|
} // beast
|
|
|
|
#include <beast/core/impl/consuming_buffers.ipp>
|
|
|
|
#endif
|