AngelscriptDebuggerServer/extern/asio-1.18.2/include/asio/detail/winrt_ssocket_service_base.hpp

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//
// detail/winrt_ssocket_service_base.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2021 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 ASIO_DETAIL_WINRT_SSOCKET_SERVICE_BASE_HPP
#define ASIO_DETAIL_WINRT_SSOCKET_SERVICE_BASE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include "asio/detail/config.hpp"
#if defined(ASIO_WINDOWS_RUNTIME)
#include "asio/buffer.hpp"
#include "asio/error.hpp"
#include "asio/execution_context.hpp"
#include "asio/socket_base.hpp"
#include "asio/detail/buffer_sequence_adapter.hpp"
#include "asio/detail/memory.hpp"
#include "asio/detail/socket_types.hpp"
#include "asio/detail/winrt_async_manager.hpp"
#include "asio/detail/winrt_socket_recv_op.hpp"
#include "asio/detail/winrt_socket_send_op.hpp"
#if defined(ASIO_HAS_IOCP)
# include "asio/detail/win_iocp_io_context.hpp"
#else // defined(ASIO_HAS_IOCP)
# include "asio/detail/scheduler.hpp"
#endif // defined(ASIO_HAS_IOCP)
#include "asio/detail/push_options.hpp"
namespace asio {
namespace detail {
class winrt_ssocket_service_base
{
public:
// The native type of a socket.
typedef Windows::Networking::Sockets::StreamSocket^ native_handle_type;
// The implementation type of the socket.
struct base_implementation_type
{
// Default constructor.
base_implementation_type()
: socket_(nullptr),
next_(0),
prev_(0)
{
}
// The underlying native socket.
native_handle_type socket_;
// Pointers to adjacent socket implementations in linked list.
base_implementation_type* next_;
base_implementation_type* prev_;
};
// Constructor.
ASIO_DECL winrt_ssocket_service_base(execution_context& context);
// Destroy all user-defined handler objects owned by the service.
ASIO_DECL void base_shutdown();
// Construct a new socket implementation.
ASIO_DECL void construct(base_implementation_type&);
// Move-construct a new socket implementation.
ASIO_DECL void base_move_construct(base_implementation_type& impl,
base_implementation_type& other_impl) ASIO_NOEXCEPT;
// Move-assign from another socket implementation.
ASIO_DECL void base_move_assign(base_implementation_type& impl,
winrt_ssocket_service_base& other_service,
base_implementation_type& other_impl);
// Destroy a socket implementation.
ASIO_DECL void destroy(base_implementation_type& impl);
// Determine whether the socket is open.
bool is_open(const base_implementation_type& impl) const
{
return impl.socket_ != nullptr;
}
// Destroy a socket implementation.
ASIO_DECL asio::error_code close(
base_implementation_type& impl, asio::error_code& ec);
// Release ownership of the socket.
ASIO_DECL native_handle_type release(
base_implementation_type& impl, asio::error_code& ec);
// Get the native socket representation.
native_handle_type native_handle(base_implementation_type& impl)
{
return impl.socket_;
}
// Cancel all operations associated with the socket.
asio::error_code cancel(base_implementation_type&,
asio::error_code& ec)
{
ec = asio::error::operation_not_supported;
return ec;
}
// Determine whether the socket is at the out-of-band data mark.
bool at_mark(const base_implementation_type&,
asio::error_code& ec) const
{
ec = asio::error::operation_not_supported;
return false;
}
// Determine the number of bytes available for reading.
std::size_t available(const base_implementation_type&,
asio::error_code& ec) const
{
ec = asio::error::operation_not_supported;
return 0;
}
// Perform an IO control command on the socket.
template <typename IO_Control_Command>
asio::error_code io_control(base_implementation_type&,
IO_Control_Command&, asio::error_code& ec)
{
ec = asio::error::operation_not_supported;
return ec;
}
// Gets the non-blocking mode of the socket.
bool non_blocking(const base_implementation_type&) const
{
return false;
}
// Sets the non-blocking mode of the socket.
asio::error_code non_blocking(base_implementation_type&,
bool, asio::error_code& ec)
{
ec = asio::error::operation_not_supported;
return ec;
}
// Gets the non-blocking mode of the native socket implementation.
bool native_non_blocking(const base_implementation_type&) const
{
return false;
}
// Sets the non-blocking mode of the native socket implementation.
asio::error_code native_non_blocking(base_implementation_type&,
bool, asio::error_code& ec)
{
ec = asio::error::operation_not_supported;
return ec;
}
// Send the given data to the peer.
template <typename ConstBufferSequence>
std::size_t send(base_implementation_type& impl,
const ConstBufferSequence& buffers,
socket_base::message_flags flags, asio::error_code& ec)
{
return do_send(impl,
buffer_sequence_adapter<asio::const_buffer,
ConstBufferSequence>::first(buffers), flags, ec);
}
// Wait until data can be sent without blocking.
std::size_t send(base_implementation_type&, const null_buffers&,
socket_base::message_flags, asio::error_code& ec)
{
ec = asio::error::operation_not_supported;
return 0;
}
// Start an asynchronous send. The data being sent must be valid for the
// lifetime of the asynchronous operation.
template <typename ConstBufferSequence, typename Handler, typename IoExecutor>
void async_send(base_implementation_type& impl,
const ConstBufferSequence& buffers, socket_base::message_flags flags,
Handler& handler, const IoExecutor& io_ex)
{
bool is_continuation =
asio_handler_cont_helpers::is_continuation(handler);
// Allocate and construct an operation to wrap the handler.
typedef winrt_socket_send_op<ConstBufferSequence, Handler, IoExecutor> op;
typename op::ptr p = { asio::detail::addressof(handler),
op::ptr::allocate(handler), 0 };
p.p = new (p.v) op(buffers, handler, io_ex);
ASIO_HANDLER_CREATION((scheduler_.context(),
*p.p, "socket", &impl, 0, "async_send"));
start_send_op(impl,
buffer_sequence_adapter<asio::const_buffer,
ConstBufferSequence>::first(buffers),
flags, p.p, is_continuation);
p.v = p.p = 0;
}
// Start an asynchronous wait until data can be sent without blocking.
template <typename Handler, typename IoExecutor>
void async_send(base_implementation_type&, const null_buffers&,
socket_base::message_flags, Handler& handler, const IoExecutor& io_ex)
{
asio::error_code ec = asio::error::operation_not_supported;
const std::size_t bytes_transferred = 0;
asio::post(io_ex,
detail::bind_handler(handler, ec, bytes_transferred));
}
// Receive some data from the peer. Returns the number of bytes received.
template <typename MutableBufferSequence>
std::size_t receive(base_implementation_type& impl,
const MutableBufferSequence& buffers,
socket_base::message_flags flags, asio::error_code& ec)
{
return do_receive(impl,
buffer_sequence_adapter<asio::mutable_buffer,
MutableBufferSequence>::first(buffers), flags, ec);
}
// Wait until data can be received without blocking.
std::size_t receive(base_implementation_type&, const null_buffers&,
socket_base::message_flags, asio::error_code& ec)
{
ec = asio::error::operation_not_supported;
return 0;
}
// Start an asynchronous receive. The buffer for the data being received
// must be valid for the lifetime of the asynchronous operation.
template <typename MutableBufferSequence,
typename Handler, typename IoExecutor>
void async_receive(base_implementation_type& impl,
const MutableBufferSequence& buffers, socket_base::message_flags flags,
Handler& handler, const IoExecutor& io_ex)
{
bool is_continuation =
asio_handler_cont_helpers::is_continuation(handler);
// Allocate and construct an operation to wrap the handler.
typedef winrt_socket_recv_op<MutableBufferSequence, Handler, IoExecutor> op;
typename op::ptr p = { asio::detail::addressof(handler),
op::ptr::allocate(handler), 0 };
p.p = new (p.v) op(buffers, handler, io_ex);
ASIO_HANDLER_CREATION((scheduler_.context(),
*p.p, "socket", &impl, 0, "async_receive"));
start_receive_op(impl,
buffer_sequence_adapter<asio::mutable_buffer,
MutableBufferSequence>::first(buffers),
flags, p.p, is_continuation);
p.v = p.p = 0;
}
// Wait until data can be received without blocking.
template <typename Handler, typename IoExecutor>
void async_receive(base_implementation_type&, const null_buffers&,
socket_base::message_flags, Handler& handler, const IoExecutor& io_ex)
{
asio::error_code ec = asio::error::operation_not_supported;
const std::size_t bytes_transferred = 0;
asio::post(io_ex,
detail::bind_handler(handler, ec, bytes_transferred));
}
protected:
// Helper function to obtain endpoints associated with the connection.
ASIO_DECL std::size_t do_get_endpoint(
const base_implementation_type& impl, bool local,
void* addr, std::size_t addr_len, asio::error_code& ec) const;
// Helper function to set a socket option.
ASIO_DECL asio::error_code do_set_option(
base_implementation_type& impl,
int level, int optname, const void* optval,
std::size_t optlen, asio::error_code& ec);
// Helper function to get a socket option.
ASIO_DECL void do_get_option(
const base_implementation_type& impl,
int level, int optname, void* optval,
std::size_t* optlen, asio::error_code& ec) const;
// Helper function to perform a synchronous connect.
ASIO_DECL asio::error_code do_connect(
base_implementation_type& impl,
const void* addr, asio::error_code& ec);
// Helper function to start an asynchronous connect.
ASIO_DECL void start_connect_op(
base_implementation_type& impl, const void* addr,
winrt_async_op<void>* op, bool is_continuation);
// Helper function to perform a synchronous send.
ASIO_DECL std::size_t do_send(
base_implementation_type& impl, const asio::const_buffer& data,
socket_base::message_flags flags, asio::error_code& ec);
// Helper function to start an asynchronous send.
ASIO_DECL void start_send_op(base_implementation_type& impl,
const asio::const_buffer& data, socket_base::message_flags flags,
winrt_async_op<unsigned int>* op, bool is_continuation);
// Helper function to perform a synchronous receive.
ASIO_DECL std::size_t do_receive(
base_implementation_type& impl, const asio::mutable_buffer& data,
socket_base::message_flags flags, asio::error_code& ec);
// Helper function to start an asynchronous receive.
ASIO_DECL void start_receive_op(base_implementation_type& impl,
const asio::mutable_buffer& data, socket_base::message_flags flags,
winrt_async_op<Windows::Storage::Streams::IBuffer^>* op,
bool is_continuation);
// The scheduler implementation used for delivering completions.
#if defined(ASIO_HAS_IOCP)
typedef class win_iocp_io_context scheduler_impl;
#else
typedef class scheduler scheduler_impl;
#endif
scheduler_impl& scheduler_;
// The manager that keeps track of outstanding operations.
winrt_async_manager& async_manager_;
// Mutex to protect access to the linked list of implementations.
asio::detail::mutex mutex_;
// The head of a linked list of all implementations.
base_implementation_type* impl_list_;
};
} // namespace detail
} // namespace asio
#include "asio/detail/pop_options.hpp"
#if defined(ASIO_HEADER_ONLY)
# include "asio/detail/impl/winrt_ssocket_service_base.ipp"
#endif // defined(ASIO_HEADER_ONLY)
#endif // defined(ASIO_WINDOWS_RUNTIME)
#endif // ASIO_DETAIL_WINRT_SSOCKET_SERVICE_BASE_HPP