FM / detail

/usr/include/boost/asio/detail

Name	Size	Mode	Actions
impl/	-	0755	rm
array.hpp	1001	0644	edit dl rm
array_fwd.hpp	950	0644	edit dl rm
assert.hpp	968	0644	edit dl rm
atomic_count.hpp	1955	0644	edit dl rm
base_from_completion_cond.hpp	1795	0644	edit dl rm
bind_handler.hpp	28936	0644	edit dl rm
blocking_executor_op.hpp	2823	0644	edit dl rm
buffered_stream_storage.hpp	2987	0644	edit dl rm
buffer_resize_guard.hpp	1593	0644	edit dl rm
buffer_sequence_adapter.hpp	15582	0644	edit dl rm
bulk_executor_op.hpp	2785	0644	edit dl rm
call_stack.hpp	3003	0644	edit dl rm
chrono.hpp	2081	0644	edit dl rm
chrono_time_traits.hpp	4469	0644	edit dl rm
completion_handler.hpp	2832	0644	edit dl rm
concurrency_hint.hpp	4062	0644	edit dl rm
conditionally_enabled_event.hpp	3124	0644	edit dl rm
conditionally_enabled_mutex.hpp	3126	0644	edit dl rm
config.hpp	76667	0644	edit dl rm
consuming_buffers.hpp	10631	0644	edit dl rm
cstddef.hpp	816	0644	edit dl rm
cstdint.hpp	1558	0644	edit dl rm
date_time_fwd.hpp	792	0644	edit dl rm
deadline_timer_service.hpp	9241	0644	edit dl rm
dependent_type.hpp	891	0644	edit dl rm
descriptor_ops.hpp	4244	0644	edit dl rm
descriptor_read_op.hpp	4798	0644	edit dl rm
descriptor_write_op.hpp	4801	0644	edit dl rm
dev_poll_reactor.hpp	8039	0644	edit dl rm
epoll_reactor.hpp	9467	0644	edit dl rm
event.hpp	1364	0644	edit dl rm
eventfd_select_interrupter.hpp	2524	0644	edit dl rm
executor_function.hpp	4857	0644	edit dl rm
executor_op.hpp	2605	0644	edit dl rm
fd_set_adapter.hpp	1064	0644	edit dl rm
fenced_block.hpp	3066	0644	edit dl rm
functional.hpp	1014	0644	edit dl rm
future.hpp	1241	0644	edit dl rm
gcc_arm_fenced_block.hpp	2238	0644	edit dl rm
gcc_hppa_fenced_block.hpp	1560	0644	edit dl rm
gcc_sync_fenced_block.hpp	1679	0644	edit dl rm
gcc_x86_fenced_block.hpp	2460	0644	edit dl rm
global.hpp	1397	0644	edit dl rm
handler_alloc_helpers.hpp	8236	0644	edit dl rm
handler_cont_helpers.hpp	1364	0644	edit dl rm
handler_invoke_helpers.hpp	2715	0644	edit dl rm
handler_tracking.hpp	9182	0644	edit dl rm
handler_type_requirements.hpp	20351	0644	edit dl rm
handler_work.hpp	12302	0644	edit dl rm
hash_map.hpp	8343	0644	edit dl rm
io_control.hpp	1883	0644	edit dl rm
io_object_impl.hpp	5018	0644	edit dl rm
is_buffer_sequence.hpp	7953	0644	edit dl rm
is_executor.hpp	3033	0644	edit dl rm
keyword_tss_ptr.hpp	1425	0644	edit dl rm
kqueue_reactor.hpp	8277	0644	edit dl rm
limits.hpp	734	0644	edit dl rm
local_free_on_block_exit.hpp	1470	0644	edit dl rm
macos_fenced_block.hpp	1380	0644	edit dl rm
memory.hpp	2103	0644	edit dl rm
mutex.hpp	1351	0644	edit dl rm
noncopyable.hpp	1000	0644	edit dl rm
non_const_lvalue.hpp	1506	0644	edit dl rm
null_event.hpp	2197	0644	edit dl rm
null_fenced_block.hpp	1044	0644	edit dl rm
null_global.hpp	1295	0644	edit dl rm
null_mutex.hpp	1255	0644	edit dl rm
null_reactor.hpp	1563	0644	edit dl rm
null_signal_blocker.hpp	1627	0644	edit dl rm
null_socket_service.hpp	17283	0644	edit dl rm
null_static_mutex.hpp	1259	0644	edit dl rm
null_thread.hpp	1442	0644	edit dl rm
null_tss_ptr.hpp	1272	0644	edit dl rm
object_pool.hpp	3500	0644	edit dl rm
old_win_sdk_compat.hpp	4478	0644	edit dl rm
operation.hpp	963	0644	edit dl rm
op_queue.hpp	3313	0644	edit dl rm
pipe_select_interrupter.hpp	2603	0644	edit dl rm
pop_options.hpp	2877	0644	edit dl rm
posix_event.hpp	4548	0644	edit dl rm
posix_fd_set_adapter.hpp	2992	0644	edit dl rm
posix_global.hpp	1807	0644	edit dl rm
posix_mutex.hpp	1685	0644	edit dl rm
posix_signal_blocker.hpp	1975	0644	edit dl rm
posix_static_mutex.hpp	1467	0644	edit dl rm
posix_thread.hpp	2187	0644	edit dl rm
posix_tss_ptr.hpp	1800	0644	edit dl rm
push_options.hpp	4679	0644	edit dl rm
reactive_descriptor_service.hpp	14507	0644	edit dl rm
reactive_null_buffers_op.hpp	3300	0644	edit dl rm
reactive_serial_port_service.hpp	8314	0644	edit dl rm
reactive_socket_accept_op.hpp	8322	0644	edit dl rm
reactive_socket_connect_op.hpp	4010	0644	edit dl rm
reactive_socket_recvfrom_op.hpp	5660	0644	edit dl rm
reactive_socket_recvmsg_op.hpp	5012	0644	edit dl rm
reactive_socket_recv_op.hpp	5433	0644	edit dl rm
reactive_socket_sendto_op.hpp	5362	0644	edit dl rm
reactive_socket_send_op.hpp	5530	0644	edit dl rm
reactive_socket_service.hpp	18653	0644	edit dl rm
reactive_socket_service_base.hpp	19681	0644	edit dl rm
reactive_wait_op.hpp	3153	0644	edit dl rm
reactor.hpp	1003	0644	edit dl rm
reactor_fwd.hpp	1155	0644	edit dl rm
reactor_op.hpp	1763	0644	edit dl rm
reactor_op_queue.hpp	4979	0644	edit dl rm
recycling_allocator.hpp	2467	0644	edit dl rm
regex_fwd.hpp	846	0644	edit dl rm
resolver_service.hpp	4806	0644	edit dl rm
resolver_service_base.hpp	4392	0644	edit dl rm
resolve_endpoint_op.hpp	4900	0644	edit dl rm
resolve_op.hpp	1090	0644	edit dl rm
resolve_query_op.hpp	5034	0644	edit dl rm
scheduler.hpp	7609	0644	edit dl rm
scheduler_operation.hpp	1922	0644	edit dl rm
scheduler_thread_info.hpp	1079	0644	edit dl rm
scoped_lock.hpp	1942	0644	edit dl rm
scoped_ptr.hpp	1448	0644	edit dl rm
select_interrupter.hpp	1426	0644	edit dl rm
select_reactor.hpp	8813	0644	edit dl rm
service_registry.hpp	5645	0644	edit dl rm
signal_blocker.hpp	1382	0644	edit dl rm
signal_handler.hpp	2931	0644	edit dl rm
signal_init.hpp	1070	0644	edit dl rm
signal_op.hpp	1146	0644	edit dl rm
signal_set_service.hpp	7018	0644	edit dl rm
socket_holder.hpp	2148	0644	edit dl rm
socket_ops.hpp	13917	0644	edit dl rm
socket_option.hpp	6410	0644	edit dl rm
socket_select_interrupter.hpp	2620	0644	edit dl rm
socket_types.hpp	16173	0644	edit dl rm
solaris_fenced_block.hpp	1338	0644	edit dl rm
source_location.hpp	1460	0644	edit dl rm
static_mutex.hpp	1745	0644	edit dl rm
std_event.hpp	4029	0644	edit dl rm
std_fenced_block.hpp	1408	0644	edit dl rm
std_global.hpp	1568	0644	edit dl rm
std_mutex.hpp	1404	0644	edit dl rm
std_static_mutex.hpp	1586	0644	edit dl rm
std_thread.hpp	1425	0644	edit dl rm
strand_executor_service.hpp	6110	0644	edit dl rm
strand_service.hpp	4896	0644	edit dl rm
string_view.hpp	1574	0644	edit dl rm
thread.hpp	1658	0644	edit dl rm
thread_context.hpp	1135	0644	edit dl rm
thread_group.hpp	1993	0644	edit dl rm
thread_info_base.hpp	4979	0644	edit dl rm
throw_error.hpp	1377	0644	edit dl rm
throw_exception.hpp	1512	0644	edit dl rm
timer_queue.hpp	9873	0644	edit dl rm
timer_queue_base.hpp	1754	0644	edit dl rm
timer_queue_ptime.hpp	3132	0644	edit dl rm
timer_queue_set.hpp	1805	0644	edit dl rm
timer_scheduler.hpp	1157	0644	edit dl rm
timer_scheduler_fwd.hpp	1225	0644	edit dl rm
tss_ptr.hpp	1883	0644	edit dl rm
type_traits.hpp	5070	0644	edit dl rm
variadic_templates.hpp	13229	0644	edit dl rm
wait_handler.hpp	2864	0644	edit dl rm
wait_op.hpp	1021	0644	edit dl rm
winapp_thread.hpp	2740	0644	edit dl rm
wince_thread.hpp	2683	0644	edit dl rm
winrt_async_manager.hpp	9024	0644	edit dl rm
winrt_async_op.hpp	1487	0644	edit dl rm
winrt_resolver_service.hpp	6302	0644	edit dl rm
winrt_resolve_op.hpp	4062	0644	edit dl rm
winrt_socket_connect_op.hpp	3237	0644	edit dl rm
winrt_socket_recv_op.hpp	4042	0644	edit dl rm
winrt_socket_send_op.hpp	3677	0644	edit dl rm
winrt_ssocket_service.hpp	7455	0644	edit dl rm
winrt_ssocket_service_base.hpp	12870	0644	edit dl rm
winrt_timer_scheduler.hpp	4839	0644	edit dl rm
winrt_utils.hpp	2760	0644	edit dl rm
winsock_init.hpp	3232	0644	edit dl rm
win_event.hpp	3936	0644	edit dl rm
win_fd_set_adapter.hpp	3911	0644	edit dl rm
win_fenced_block.hpp	2138	0644	edit dl rm
win_global.hpp	1790	0644	edit dl rm
win_iocp_handle_read_op.hpp	3956	0644	edit dl rm
win_iocp_handle_service.hpp	12900	0644	edit dl rm
win_iocp_handle_write_op.hpp	3758	0644	edit dl rm
win_iocp_io_context.hpp	11747	0644	edit dl rm
win_iocp_null_buffers_op.hpp	4098	0644	edit dl rm
win_iocp_operation.hpp	2187	0644	edit dl rm
win_iocp_overlapped_op.hpp	3186	0644	edit dl rm
win_iocp_overlapped_ptr.hpp	4418	0644	edit dl rm
win_iocp_serial_port_service.hpp	7981	0644	edit dl rm
win_iocp_socket_accept_op.hpp	10210	0644	edit dl rm
win_iocp_socket_connect_op.hpp	4146	0644	edit dl rm
win_iocp_socket_recvfrom_op.hpp	4394	0644	edit dl rm
win_iocp_socket_recvmsg_op.hpp	4211	0644	edit dl rm
win_iocp_socket_recv_op.hpp	4232	0644	edit dl rm
win_iocp_socket_send_op.hpp	3975	0644	edit dl rm
win_iocp_socket_service.hpp	20209	0644	edit dl rm
win_iocp_socket_service_base.hpp	23493	0644	edit dl rm
win_iocp_thread_info.hpp	903	0644	edit dl rm
win_iocp_wait_op.hpp	4016	0644	edit dl rm
win_mutex.hpp	1832	0644	edit dl rm
win_object_handle_service.hpp	6401	0644	edit dl rm
win_static_mutex.hpp	1937	0644	edit dl rm
win_thread.hpp	3233	0644	edit dl rm
win_tss_ptr.hpp	1744	0644	edit dl rm
work_dispatcher.hpp	4111	0644	edit dl rm
wrapped_handler.hpp	9882	0644	edit dl rm

Edit: /usr/include/boost/asio/detail/buffer_sequence_adapter.hpp (15582B)

//
// detail/buffer_sequence_adapter.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2020 Christopher M. Kohlhoff (chris at kohlhoff 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 BOOST_ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP
#define BOOST_ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)

#include <boost/asio/detail/config.hpp>
#include <boost/asio/buffer.hpp>
#include <boost/asio/detail/array_fwd.hpp>
#include <boost/asio/detail/socket_types.hpp>

#include <boost/asio/detail/push_options.hpp>

namespace boost {
namespace asio {
namespace detail {

class buffer_sequence_adapter_base
{
#if defined(BOOST_ASIO_WINDOWS_RUNTIME)
public:
  // The maximum number of buffers to support in a single operation.
  enum { max_buffers = 1 };

protected:
  typedef Windows::Storage::Streams::IBuffer^ native_buffer_type;

BOOST_ASIO_DECL static void init_native_buffer(
      native_buffer_type& buf,
      const boost::asio::mutable_buffer& buffer);

BOOST_ASIO_DECL static void init_native_buffer(
      native_buffer_type& buf,
      const boost::asio::const_buffer& buffer);
#elif defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
public:
  // The maximum number of buffers to support in a single operation.
  enum { max_buffers = 64 < max_iov_len ? 64 : max_iov_len };

protected:
  typedef WSABUF native_buffer_type;

static void init_native_buffer(WSABUF& buf,
      const boost::asio::mutable_buffer& buffer)
  {
    buf.buf = static_cast<char*>(buffer.data());
    buf.len = static_cast<ULONG>(buffer.size());
  }

static void init_native_buffer(WSABUF& buf,
      const boost::asio::const_buffer& buffer)
  {
    buf.buf = const_cast<char*>(static_cast<const char*>(buffer.data()));
    buf.len = static_cast<ULONG>(buffer.size());
  }
#else // defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
public:
  // The maximum number of buffers to support in a single operation.
  enum { max_buffers = 64 < max_iov_len ? 64 : max_iov_len };

protected:
  typedef iovec native_buffer_type;

static void init_iov_base(void*& base, void* addr)
  {
    base = addr;
  }

template <typename T>
  static void init_iov_base(T& base, void* addr)
  {
    base = static_cast<T>(addr);
  }

static void init_native_buffer(iovec& iov,
      const boost::asio::mutable_buffer& buffer)
  {
    init_iov_base(iov.iov_base, buffer.data());
    iov.iov_len = buffer.size();
  }

static void init_native_buffer(iovec& iov,
      const boost::asio::const_buffer& buffer)
  {
    init_iov_base(iov.iov_base, const_cast<void*>(buffer.data()));
    iov.iov_len = buffer.size();
  }
#endif // defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
};

// Helper class to translate buffers into the native buffer representation.
template <typename Buffer, typename Buffers>
class buffer_sequence_adapter
  : buffer_sequence_adapter_base
{
public:
  enum { is_single_buffer = false };

explicit buffer_sequence_adapter(const Buffers& buffer_sequence)
    : count_(0), total_buffer_size_(0)
  {
    buffer_sequence_adapter::init(
        boost::asio::buffer_sequence_begin(buffer_sequence),
        boost::asio::buffer_sequence_end(buffer_sequence));
  }

native_buffer_type* buffers()
  {
    return buffers_;
  }

std::size_t count() const
  {
    return count_;
  }

std::size_t total_size() const
  {
    return total_buffer_size_;
  }

bool all_empty() const
  {
    return total_buffer_size_ == 0;
  }

static bool all_empty(const Buffers& buffer_sequence)
  {
    return buffer_sequence_adapter::all_empty(
        boost::asio::buffer_sequence_begin(buffer_sequence),
        boost::asio::buffer_sequence_end(buffer_sequence));
  }

static void validate(const Buffers& buffer_sequence)
  {
    buffer_sequence_adapter::validate(
        boost::asio::buffer_sequence_begin(buffer_sequence),
        boost::asio::buffer_sequence_end(buffer_sequence));
  }

static Buffer first(const Buffers& buffer_sequence)
  {
    return buffer_sequence_adapter::first(
        boost::asio::buffer_sequence_begin(buffer_sequence),
        boost::asio::buffer_sequence_end(buffer_sequence));
  }

enum { linearisation_storage_size = 8192 };

static Buffer linearise(const Buffers& buffer_sequence,
      const boost::asio::mutable_buffer& storage)
  {
    return buffer_sequence_adapter::linearise(
        boost::asio::buffer_sequence_begin(buffer_sequence),
        boost::asio::buffer_sequence_end(buffer_sequence), storage);
  }

private:
  template <typename Iterator>
  void init(Iterator begin, Iterator end)
  {
    Iterator iter = begin;
    for (; iter != end && count_ < max_buffers; ++iter, ++count_)
    {
      Buffer buffer(*iter);
      init_native_buffer(buffers_[count_], buffer);
      total_buffer_size_ += buffer.size();
    }
  }

template <typename Iterator>
  static bool all_empty(Iterator begin, Iterator end)
  {
    Iterator iter = begin;
    std::size_t i = 0;
    for (; iter != end && i < max_buffers; ++iter, ++i)
      if (Buffer(*iter).size() > 0)
        return false;
    return true;
  }

template <typename Iterator>
  static void validate(Iterator begin, Iterator end)
  {
    Iterator iter = begin;
    for (; iter != end; ++iter)
    {
      Buffer buffer(*iter);
      buffer.data();
    }
  }

template <typename Iterator>
  static Buffer first(Iterator begin, Iterator end)
  {
    Iterator iter = begin;
    for (; iter != end; ++iter)
    {
      Buffer buffer(*iter);
      if (buffer.size() != 0)
        return buffer;
    }
    return Buffer();
  }

template <typename Iterator>
  static Buffer linearise(Iterator begin, Iterator end,
      const boost::asio::mutable_buffer& storage)
  {
    boost::asio::mutable_buffer unused_storage = storage;
    Iterator iter = begin;
    while (iter != end && unused_storage.size() != 0)
    {
      Buffer buffer(*iter);
      ++iter;
      if (buffer.size() == 0)
        continue;
      if (unused_storage.size() == storage.size())
      {
        if (iter == end)
          return buffer;
        if (buffer.size() >= unused_storage.size())
          return buffer;
      }
      unused_storage += boost::asio::buffer_copy(unused_storage, buffer);
    }
    return Buffer(storage.data(), storage.size() - unused_storage.size());
  }

native_buffer_type buffers_[max_buffers];
  std::size_t count_;
  std::size_t total_buffer_size_;
};

template <typename Buffer>
class buffer_sequence_adapter<Buffer, boost::asio::mutable_buffer>
  : buffer_sequence_adapter_base
{
public:
  enum { is_single_buffer = true };

explicit buffer_sequence_adapter(
      const boost::asio::mutable_buffer& buffer_sequence)
  {
    init_native_buffer(buffer_, Buffer(buffer_sequence));
    total_buffer_size_ = buffer_sequence.size();
  }

native_buffer_type* buffers()
  {
    return &buffer_;
  }

std::size_t count() const
  {
    return 1;
  }

std::size_t total_size() const
  {
    return total_buffer_size_;
  }

bool all_empty() const
  {
    return total_buffer_size_ == 0;
  }

static bool all_empty(const boost::asio::mutable_buffer& buffer_sequence)
  {
    return buffer_sequence.size() == 0;
  }

static void validate(const boost::asio::mutable_buffer& buffer_sequence)
  {
    buffer_sequence.data();
  }

static Buffer first(const boost::asio::mutable_buffer& buffer_sequence)
  {
    return Buffer(buffer_sequence);
  }

enum { linearisation_storage_size = 1 };

static Buffer linearise(const boost::asio::mutable_buffer& buffer_sequence,
      const Buffer&)
  {
    return Buffer(buffer_sequence);
  }

private:
  native_buffer_type buffer_;
  std::size_t total_buffer_size_;
};

template <typename Buffer>
class buffer_sequence_adapter<Buffer, boost::asio::const_buffer>
  : buffer_sequence_adapter_base
{
public:
  enum { is_single_buffer = true };

explicit buffer_sequence_adapter(
      const boost::asio::const_buffer& buffer_sequence)
  {
    init_native_buffer(buffer_, Buffer(buffer_sequence));
    total_buffer_size_ = buffer_sequence.size();
  }

native_buffer_type* buffers()
  {
    return &buffer_;
  }

std::size_t count() const
  {
    return 1;
  }

std::size_t total_size() const
  {
    return total_buffer_size_;
  }

bool all_empty() const
  {
    return total_buffer_size_ == 0;
  }

static bool all_empty(const boost::asio::const_buffer& buffer_sequence)
  {
    return buffer_sequence.size() == 0;
  }

static void validate(const boost::asio::const_buffer& buffer_sequence)
  {
    buffer_sequence.data();
  }

static Buffer first(const boost::asio::const_buffer& buffer_sequence)
  {
    return Buffer(buffer_sequence);
  }

enum { linearisation_storage_size = 1 };

static Buffer linearise(const boost::asio::const_buffer& buffer_sequence,
      const Buffer&)
  {
    return Buffer(buffer_sequence);
  }

private:
  native_buffer_type buffer_;
  std::size_t total_buffer_size_;
};

#if !defined(BOOST_ASIO_NO_DEPRECATED)

template <typename Buffer>
class buffer_sequence_adapter<Buffer, boost::asio::mutable_buffers_1>
  : buffer_sequence_adapter_base
{
public:
  enum { is_single_buffer = true };

explicit buffer_sequence_adapter(
      const boost::asio::mutable_buffers_1& buffer_sequence)
  {
    init_native_buffer(buffer_, Buffer(buffer_sequence));
    total_buffer_size_ = buffer_sequence.size();
  }

native_buffer_type* buffers()
  {
    return &buffer_;
  }

std::size_t count() const
  {
    return 1;
  }

std::size_t total_size() const
  {
    return total_buffer_size_;
  }

bool all_empty() const
  {
    return total_buffer_size_ == 0;
  }

static bool all_empty(const boost::asio::mutable_buffers_1& buffer_sequence)
  {
    return buffer_sequence.size() == 0;
  }

static void validate(const boost::asio::mutable_buffers_1& buffer_sequence)
  {
    buffer_sequence.data();
  }

static Buffer first(const boost::asio::mutable_buffers_1& buffer_sequence)
  {
    return Buffer(buffer_sequence);
  }

enum { linearisation_storage_size = 1 };

static Buffer linearise(const boost::asio::mutable_buffers_1& buffer_sequence,
      const Buffer&)
  {
    return Buffer(buffer_sequence);
  }

private:
  native_buffer_type buffer_;
  std::size_t total_buffer_size_;
};

template <typename Buffer>
class buffer_sequence_adapter<Buffer, boost::asio::const_buffers_1>
  : buffer_sequence_adapter_base
{
public:
  enum { is_single_buffer = true };

explicit buffer_sequence_adapter(
      const boost::asio::const_buffers_1& buffer_sequence)
  {
    init_native_buffer(buffer_, Buffer(buffer_sequence));
    total_buffer_size_ = buffer_sequence.size();
  }

native_buffer_type* buffers()
  {
    return &buffer_;
  }

std::size_t count() const
  {
    return 1;
  }

std::size_t total_size() const
  {
    return total_buffer_size_;
  }

bool all_empty() const
  {
    return total_buffer_size_ == 0;
  }

static bool all_empty(const boost::asio::const_buffers_1& buffer_sequence)
  {
    return buffer_sequence.size() == 0;
  }

static void validate(const boost::asio::const_buffers_1& buffer_sequence)
  {
    buffer_sequence.data();
  }

static Buffer first(const boost::asio::const_buffers_1& buffer_sequence)
  {
    return Buffer(buffer_sequence);
  }

enum { linearisation_storage_size = 1 };

static Buffer linearise(const boost::asio::const_buffers_1& buffer_sequence,
      const Buffer&)
  {
    return Buffer(buffer_sequence);
  }

private:
  native_buffer_type buffer_;
  std::size_t total_buffer_size_;
};

#endif // !defined(BOOST_ASIO_NO_DEPRECATED)

template <typename Buffer, typename Elem>
class buffer_sequence_adapter<Buffer, boost::array<Elem, 2> >
  : buffer_sequence_adapter_base
{
public:
  enum { is_single_buffer = false };

explicit buffer_sequence_adapter(
      const boost::array<Elem, 2>& buffer_sequence)
  {
    init_native_buffer(buffers_[0], Buffer(buffer_sequence[0]));
    init_native_buffer(buffers_[1], Buffer(buffer_sequence[1]));
    total_buffer_size_ = buffer_sequence[0].size() + buffer_sequence[1].size();
  }

native_buffer_type* buffers()
  {
    return buffers_;
  }

std::size_t count() const
  {
    return 2;
  }

std::size_t total_size() const
  {
    return total_buffer_size_;
  }

bool all_empty() const
  {
    return total_buffer_size_ == 0;
  }

static bool all_empty(const boost::array<Elem, 2>& buffer_sequence)
  {
    return buffer_sequence[0].size() == 0 && buffer_sequence[1].size() == 0;
  }

static void validate(const boost::array<Elem, 2>& buffer_sequence)
  {
    buffer_sequence[0].data();
    buffer_sequence[1].data();
  }

static Buffer first(const boost::array<Elem, 2>& buffer_sequence)
  {
    return Buffer(buffer_sequence[0].size() != 0
        ? buffer_sequence[0] : buffer_sequence[1]);
  }

enum { linearisation_storage_size = 8192 };

static Buffer linearise(const boost::array<Elem, 2>& buffer_sequence,
      const boost::asio::mutable_buffer& storage)
  {
    if (buffer_sequence[0].size() == 0)
      return Buffer(buffer_sequence[1]);
    if (buffer_sequence[1].size() == 0)
      return Buffer(buffer_sequence[0]);
    return Buffer(storage.data(),
        boost::asio::buffer_copy(storage, buffer_sequence));
  }

private:
  native_buffer_type buffers_[2];
  std::size_t total_buffer_size_;
};

#if defined(BOOST_ASIO_HAS_STD_ARRAY)

template <typename Buffer, typename Elem>
class buffer_sequence_adapter<Buffer, std::array<Elem, 2> >
  : buffer_sequence_adapter_base
{
public:
  enum { is_single_buffer = false };

explicit buffer_sequence_adapter(
      const std::array<Elem, 2>& buffer_sequence)
  {
    init_native_buffer(buffers_[0], Buffer(buffer_sequence[0]));
    init_native_buffer(buffers_[1], Buffer(buffer_sequence[1]));
    total_buffer_size_ = buffer_sequence[0].size() + buffer_sequence[1].size();
  }

native_buffer_type* buffers()
  {
    return buffers_;
  }

std::size_t count() const
  {
    return 2;
  }

std::size_t total_size() const
  {
    return total_buffer_size_;
  }

bool all_empty() const
  {
    return total_buffer_size_ == 0;
  }

static bool all_empty(const std::array<Elem, 2>& buffer_sequence)
  {
    return buffer_sequence[0].size() == 0 && buffer_sequence[1].size() == 0;
  }

static void validate(const std::array<Elem, 2>& buffer_sequence)
  {
    buffer_sequence[0].data();
    buffer_sequence[1].data();
  }

static Buffer first(const std::array<Elem, 2>& buffer_sequence)
  {
    return Buffer(buffer_sequence[0].size() != 0
        ? buffer_sequence[0] : buffer_sequence[1]);
  }

enum { linearisation_storage_size = 8192 };

static Buffer linearise(const std::array<Elem, 2>& buffer_sequence,
      const boost::asio::mutable_buffer& storage)
  {
    if (buffer_sequence[0].size() == 0)
      return Buffer(buffer_sequence[1]);
    if (buffer_sequence[1].size() == 0)
      return Buffer(buffer_sequence[0]);
    return Buffer(storage.data(),
        boost::asio::buffer_copy(storage, buffer_sequence));
  }

private:
  native_buffer_type buffers_[2];
  std::size_t total_buffer_size_;
};

#endif // defined(BOOST_ASIO_HAS_STD_ARRAY)

} // namespace detail
} // namespace asio
} // namespace boost

#include <boost/asio/detail/pop_options.hpp>

#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/detail/impl/buffer_sequence_adapter.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)

#endif // BOOST_ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP

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