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759 lines
26 KiB
C++
759 lines
26 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef BEAST_SOCKETWRAPPER_H_INCLUDED
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#define BEAST_SOCKETWRAPPER_H_INCLUDED
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/** Wraps a reference to any object and exports all availble interfaces.
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If the object does not support an interface, calling those
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member functions will behave as if a pure virtual was called.
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Note that only a reference to the underlying is stored. Management
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of the lifetime of the object is controlled by the caller.
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Examples of the type of Object:
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asio::ip::tcp::socket
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arg must be an io_context
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SocketWrapper will create and take ownership of the tcp::socket
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this_layer_type will be tcp::socket
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next_layer () returns a asio::ip::tcp::socket&
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lowest_layer () returns a asio::ip::tcp::socket&
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asio::ip::tcp::socket&
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arg must be an existing socket&
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The caller owns the underlying socket object
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this_layer_type will be tcp::socket
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next_layer () returns a asio::ip::tcp::socket&
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lowest_layer () returns a asio::ip::tcp::socket&
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asio::ssl::stream <asio::ip::tcp::socket>
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arg must be an io_context
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SocketWrapper creates and takes ownership of the ssl::stream
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WrappedObjecType will be asio::ssl::stream <asio::ip::tcp::socket>
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next_layer () returns a asio::ip::tcp::socket&
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lowest_layer () returns a asio::ip::tcp::socket&
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asio::ssl::stream <asio::ip::tcp::socket&>
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arg must be an existing socket&
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The caller owns the socket, but SocketWrapper owns the ssl::stream
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this_layer_type will be asio::ssl::stream <asio::ip::tcp::socket&>
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next_layer () returns a asio::ip::tcp::socket&
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lowest_layer () returns a asio::ip::tcp::socket&
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asio::ssl::stream <asio::buffered_stream <asio::ip::tcp::socket> > >
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This makes my head explode
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*/
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//------------------------------------------------------------------------------
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namespace SocketWrapperMemberChecks
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{
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template <bool Enable>
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struct EnableIf : boost::false_type { };
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template <>
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struct EnableIf <true> : boost::true_type { };
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_get_io_service, get_io_service);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_lowest_layer, lowest_layer);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_cancel, cancel);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_shutdown, shutdown);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_close, close);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_accept, accept);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_async_accept, async_accept);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_read_some, read_some);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_write_some, write_some);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_async_read_some, async_read_some);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_async_write_some, async_write_some);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_handshake, handshake);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_async_handshake, async_handshake);
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BEAST_DEFINE_IS_CALL_POSSIBLE(has_async_shutdown, async_shutdown);
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// Extracts the underlying socket type from the protocol of another asio object
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template <typename T, typename Enable = void>
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struct native_socket
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{
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typedef void* socket_type;
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inline native_socket (Socket&) : m_socket (nullptr) { SocketBase::pure_virtual (); }
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inline socket_type& get () { SocketBase::pure_virtual (); return m_socket; }
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inline socket_type& operator-> () { return get (); }
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private:
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socket_type m_socket;
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};
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// Enabled if T::protocol_type::socket exists as a type
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template <typename T>
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struct native_socket <T, typename boost::enable_if <boost::is_class <
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typename T::protocol_type::socket> >::type>
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{
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typedef typename T::protocol_type::socket socket_type;
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inline native_socket (Socket& peer) : m_socket_ptr (&peer.native_handle <socket_type> ()) { }
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inline socket_type& get () noexcept { return *m_socket_ptr; }
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inline socket_type& operator-> () noexcept { return get (); }
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private:
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socket_type* m_socket_ptr;
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};
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};
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//------------------------------------------------------------------------------
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template <typename Object>
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class SocketWrapper
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: public Socket
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, public Uncopyable
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{
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public:
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template <typename Arg>
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explicit SocketWrapper (Arg& arg)
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: m_object (arg)
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{
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}
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template <typename Arg1, typename Arg2>
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SocketWrapper (Arg1& arg1, Arg2& arg2)
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: m_object (arg1, arg2)
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{
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}
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//--------------------------------------------------------------------------
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//
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// accessors
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//
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// If you have access to the SocketWrapper itself instead of the Socket,
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// then these types and functions become available to you. If you want
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// to access things like next_layer() and lowest_layer() directly on the
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// underlying object, you might write:
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//
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// wrapper->this_layer().next_layer()
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//
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// We can't expose native versions of next_layer_type or next_layer()
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// because they may not exist in the underlying object and would cause
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// a compile error if we tried.
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//
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/** The type of the object being wrapped. */
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typedef typename boost::remove_reference <Object>::type this_layer_type;
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/** Get a reference to this layer. */
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this_layer_type& this_layer () noexcept
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{
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return m_object;
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}
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/** Get a const reference to this layer. */
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this_layer_type const& this_layer () const noexcept
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{
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return m_object;
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}
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//--------------------------------------------------------------------------
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//
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// basic_io_object
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//
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boost::asio::io_service& get_io_service ()
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{
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using namespace SocketWrapperMemberChecks;
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#if 0
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// This is the one that doesn't work, (void) arg lists
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return get_io_service (
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EnableIf <has_get_io_service <this_layer_type,
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io_service ()>::value> ());
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#else
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return get_io_service (boost::true_type ());
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#endif
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}
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boost::asio::io_service& get_io_service (
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boost::true_type)
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{
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return m_object.get_io_service ();
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}
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boost::asio::io_service& get_io_service (
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boost::false_type)
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{
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pure_virtual ();
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return *static_cast <boost::asio::io_service*>(nullptr);
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}
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//--------------------------------------------------------------------------
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//
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// basic_socket
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//
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#if 0
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// This is a potential work-around for the problem with
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// the has_type_lowest_layer_type template, but requires
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// Boost 1.54 or later.
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//
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// This include will be needed:
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//
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// #include <boost/tti/has_type.hpp>
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//
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//
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BOOST_TTI_HAS_TYPE(lowest_layer_type)
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#endif
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template <class T>
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struct has_type_lowest_layer_type
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{
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typedef char yes;
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typedef struct {char dummy[2];} no;
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template <class C> static yes f(typename C::lowest_layer_type*);
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template <class C> static no f(...);
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#ifdef _MSC_VER
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static bool const value = sizeof(f<T>(0)) == 1;
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#else
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// This line fails to compile under Visual Studio 2012
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static bool const value = sizeof(has_type_lowest_layer_type<T>::f<T>(0)) == 1;
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#endif
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};
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void* lowest_layer (char const* type_name) const
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{
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using namespace SocketWrapperMemberChecks;
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return lowest_layer (type_name,
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EnableIf <has_type_lowest_layer_type <this_layer_type>::value> ());
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}
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void* lowest_layer (char const* type_name,
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boost::true_type) const
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{
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char const* const name (typeid (typename this_layer_type::lowest_layer_type).name ());
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if (strcmp (name, type_name) == 0)
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return const_cast <void*> (static_cast <void const*> (&m_object.lowest_layer ()));
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return nullptr;
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}
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void* lowest_layer (char const*,
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boost::false_type) const
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{
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pure_virtual ();
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return nullptr;
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}
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//--------------------------------------------------------------------------
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void* native_handle (char const* type_name) const
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{
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char const* const name (typeid (this_layer_type).name ());
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if (strcmp (name, type_name) == 0)
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return const_cast <void*> (static_cast <void const*> (&m_object));
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return nullptr;
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}
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//--------------------------------------------------------------------------
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error_code cancel (error_code& ec)
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{
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using namespace SocketWrapperMemberChecks;
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return cancel (ec,
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EnableIf <has_cancel <this_layer_type,
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error_code (error_code&)>::value> ());
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}
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error_code cancel (error_code& ec,
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boost::true_type)
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{
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return m_object.cancel (ec);
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}
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error_code cancel (error_code& ec,
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boost::false_type)
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{
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return pure_virtual (ec);
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}
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//--------------------------------------------------------------------------
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error_code shutdown (shutdown_type what, error_code& ec)
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{
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using namespace SocketWrapperMemberChecks;
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return shutdown (what, ec,
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EnableIf <has_shutdown <this_layer_type,
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error_code (shutdown_type, error_code&)>::value> ());
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}
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error_code shutdown (shutdown_type what, error_code& ec,
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boost::true_type)
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{
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return m_object.shutdown (what, ec);
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}
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error_code shutdown (shutdown_type, error_code& ec,
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boost::false_type)
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{
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return pure_virtual (ec);
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}
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//--------------------------------------------------------------------------
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error_code close (error_code& ec)
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{
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using namespace SocketWrapperMemberChecks;
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return close (ec,
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EnableIf <has_close <this_layer_type,
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error_code (error_code&)>::value> ());
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}
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error_code close (error_code& ec,
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boost::true_type)
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{
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return m_object.close (ec);
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}
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error_code close (error_code& ec,
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boost::false_type)
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{
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return pure_virtual (ec);
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}
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//--------------------------------------------------------------------------
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//
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// basic_socket_acceptor
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//
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error_code accept (Socket& peer, error_code& ec)
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{
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using namespace SocketWrapperMemberChecks;
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typedef typename native_socket <this_layer_type>::socket_type socket_type;
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return accept (peer, ec,
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EnableIf <has_accept <this_layer_type,
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error_code (socket_type&, error_code&)>::value> ());
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}
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error_code accept (Socket& peer, error_code& ec,
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boost::true_type)
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{
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using namespace SocketWrapperMemberChecks;
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return m_object.accept (
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native_socket <this_layer_type> (peer).get (), ec);
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}
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error_code accept (Socket&, error_code& ec,
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boost::false_type)
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{
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return pure_virtual (ec);
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}
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//--------------------------------------------------------------------------
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BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(ErrorCall, void (error_code))
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async_accept (Socket& peer, BOOST_ASIO_MOVE_ARG(ErrorCall) handler)
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{
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using namespace SocketWrapperMemberChecks;
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typedef typename native_socket <this_layer_type>::socket_type socket_type;
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return async_accept (peer, BOOST_ASIO_MOVE_CAST(ErrorCall)(handler),
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EnableIf <has_async_accept <this_layer_type,
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BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(ErrorCall, void (error_code))
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(socket_type&, BOOST_ASIO_MOVE_ARG(TransferCall))>::value> ());
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}
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template <typename AcceptHandler>
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BEAST_ASIO_INITFN_RESULT_TYPE(ErrorCall, void (error_code))
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async_accept (Socket& peer, BOOST_ASIO_MOVE_ARG(AcceptHandler) handler,
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boost::true_type)
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{
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using namespace SocketWrapperMemberChecks;
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return m_object.async_accept (
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native_socket <this_layer_type> (peer).get (),
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BOOST_ASIO_MOVE_CAST(AcceptHandler)(handler));
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}
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template <typename AcceptHandler>
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BEAST_ASIO_INITFN_RESULT_TYPE(AcceptHandler, void (error_code))
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async_accept (Socket&, BOOST_ASIO_MOVE_ARG(AcceptHandler) handler,
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boost::false_type)
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{
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#if BEAST_ASIO_HAS_FUTURE_RETURNS
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boost::asio::detail::async_result_init<
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AcceptHandler, void (error_code)> init(
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BOOST_ASIO_MOVE_CAST(AcceptHandler)(handler));
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// init.handler is copied
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get_io_service ().post (CompletionCall (
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AcceptHandler (init.handler), pure_virtual_error ()));
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return init.result.get();
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#else
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get_io_service ().post (CompletionCall (
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BOOST_ASIO_MOVE_CAST(AcceptHandler)(handler),
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pure_virtual_error ()));
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#endif
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}
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//--------------------------------------------------------------------------
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//
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// basic_stream_socket
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//
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std::size_t read_some (MutableBuffers const& buffers, error_code& ec)
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{
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using namespace SocketWrapperMemberChecks;
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return read_some (buffers, ec,
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EnableIf <has_read_some <this_layer_type,
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std::size_t (MutableBuffers const&, error_code&)>::value> ());
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}
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template <typename MutableBufferSequence>
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std::size_t read_some (MutableBufferSequence const& buffers, error_code& ec,
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boost::true_type)
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{
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return m_object.read_some (buffers, ec);
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}
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template <typename MutableBufferSequence>
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std::size_t read_some (MutableBufferSequence const&, error_code& ec,
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boost::false_type)
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{
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pure_virtual (ec);
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return 0;
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}
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//--------------------------------------------------------------------------
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std::size_t write_some (ConstBuffers const& buffers, error_code& ec)
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{
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using namespace SocketWrapperMemberChecks;
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return write_some (buffers, ec,
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EnableIf <has_write_some <this_layer_type,
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std::size_t (ConstBuffers const&, error_code&)>::value> ());
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}
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template <typename ConstBufferSequence>
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std::size_t write_some (ConstBufferSequence const& buffers, error_code& ec,
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boost::true_type)
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{
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return m_object.write_some (buffers, ec);
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}
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template <typename ConstBufferSequence>
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std::size_t write_some (ConstBufferSequence const&, error_code& ec,
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boost::false_type)
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{
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pure_virtual (ec);
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return 0;
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}
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//--------------------------------------------------------------------------
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BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(TransferCall, void (error_code, std::size_t))
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async_read_some (MutableBuffers const& buffers, BOOST_ASIO_MOVE_ARG(TransferCall) handler)
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{
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using namespace SocketWrapperMemberChecks;
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return async_read_some (buffers, BOOST_ASIO_MOVE_CAST(TransferCall)(handler),
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EnableIf <has_async_read_some <this_layer_type,
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BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(TransferCall, void (error_code, std::size_t))
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(MutableBuffers const&, BOOST_ASIO_MOVE_ARG(TransferCall))>::value> ());
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}
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template <typename MutableBufferSequence, typename ReadHandler>
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BEAST_ASIO_INITFN_RESULT_TYPE(ReadHandler, void (error_code, std::size_t))
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async_read_some (MutableBufferSequence const& buffers, BOOST_ASIO_MOVE_ARG(ReadHandler) handler,
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boost::true_type)
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{
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return m_object.async_read_some (buffers,
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BOOST_ASIO_MOVE_CAST(ReadHandler)(handler));
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}
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template <typename MutableBufferSequence, typename ReadHandler>
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BEAST_ASIO_INITFN_RESULT_TYPE(ReadHandler, void (error_code, std::size_t))
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async_read_some (MutableBufferSequence const&, BOOST_ASIO_MOVE_ARG(ReadHandler) handler,
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boost::false_type)
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{
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#if BEAST_ASIO_HAS_FUTURE_RETURNS
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boost::asio::detail::async_result_init<
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ReadHandler, void (error_code, std::size_t)> init(
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BOOST_ASIO_MOVE_CAST(ReadHandler)(handler));
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// init.handler is copied
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get_io_service ().post (CompletionCall (
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ReadHandler (init.handler), pure_virtual_error (), 0));
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return init.result.get();
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#else
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get_io_service ().post (CompletionCall (
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BOOST_ASIO_MOVE_CAST(ReadHandler)(handler),
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pure_virtual_error (), 0));
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#endif
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}
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//--------------------------------------------------------------------------
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BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(TransferCall, void (error_code, std::size_t))
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async_write_some (ConstBuffers const& buffers, BOOST_ASIO_MOVE_ARG(TransferCall) handler)
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{
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using namespace SocketWrapperMemberChecks;
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return async_write_some (buffers, BOOST_ASIO_MOVE_CAST(TransferCall)(handler),
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EnableIf <has_async_write_some <this_layer_type,
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BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(TransferCall, void (error_code, std::size_t))
|
|
(ConstBuffers const&, BOOST_ASIO_MOVE_ARG(TransferCall))>::value> ());
|
|
}
|
|
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(TransferCall, void (error_code, std::size_t))
|
|
async_write_some (ConstBuffers const& buffers, BOOST_ASIO_MOVE_ARG(TransferCall) handler,
|
|
boost::true_type)
|
|
{
|
|
return m_object.async_write_some (buffers,
|
|
BOOST_ASIO_MOVE_CAST(TransferCall)(handler));
|
|
}
|
|
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(TransferCall, void (error_code, std::size_t))
|
|
async_write_some (ConstBuffers const&, BOOST_ASIO_MOVE_ARG(TransferCall) handler,
|
|
boost::false_type)
|
|
{
|
|
#if BEAST_ASIO_HAS_FUTURE_RETURNS
|
|
boost::asio::detail::async_result_init<
|
|
TransferCall, void (error_code, std::size_t)> init(
|
|
BOOST_ASIO_MOVE_CAST(TransferCall)(handler));
|
|
// init.handler is copied
|
|
get_io_service ().post (CompletionCall (
|
|
TransferCall (init.handler), pure_virtual_error (), 0));
|
|
return init.result.get();
|
|
|
|
#else
|
|
get_io_service ().post (CompletionCall (
|
|
BOOST_ASIO_MOVE_CAST(TransferCall)(handler),
|
|
pure_virtual_error (), 0));
|
|
|
|
#endif
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
//
|
|
// ssl::stream
|
|
//
|
|
|
|
bool requires_handshake ()
|
|
{
|
|
using namespace SocketWrapperMemberChecks;
|
|
return
|
|
has_handshake <this_layer_type,
|
|
error_code (handshake_type, error_code&)>::value ||
|
|
has_async_handshake <this_layer_type,
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(ErrorCall, void (error_code))
|
|
(handshake_type, BOOST_ASIO_MOVE_ARG(ErrorCall))>::value;
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
|
|
error_code handshake (handshake_type type, error_code& ec)
|
|
{
|
|
using namespace SocketWrapperMemberChecks;
|
|
return handshake (type, ec,
|
|
EnableIf <has_handshake <this_layer_type,
|
|
error_code (handshake_type, error_code&)>::value> ());
|
|
}
|
|
|
|
error_code handshake (handshake_type type, error_code& ec,
|
|
boost::true_type)
|
|
{
|
|
return m_object.handshake (type, ec);
|
|
}
|
|
|
|
error_code handshake (handshake_type, error_code& ec,
|
|
boost::false_type)
|
|
{
|
|
return pure_virtual (ec);
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(ErrorCall, void (error_code))
|
|
async_handshake (handshake_type type, BOOST_ASIO_MOVE_ARG(ErrorCall) handler)
|
|
{
|
|
using namespace SocketWrapperMemberChecks;
|
|
return async_handshake (type, BOOST_ASIO_MOVE_CAST(ErrorCall)(handler),
|
|
EnableIf <has_async_handshake <this_layer_type,
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(ErrorCall, void (error_code))
|
|
(handshake_type, BOOST_ASIO_MOVE_ARG(ErrorCall))>::value> ());
|
|
}
|
|
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(ErrorCall, void (error_code))
|
|
async_handshake (handshake_type type, BOOST_ASIO_MOVE_ARG(ErrorCall) handler,
|
|
boost::true_type)
|
|
{
|
|
return m_object.async_handshake (type,
|
|
BOOST_ASIO_MOVE_CAST(ErrorCall)(handler));
|
|
}
|
|
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(ErrorCall, void (error_code))
|
|
async_handshake (handshake_type, BOOST_ASIO_MOVE_ARG(ErrorCall) handler,
|
|
boost::false_type)
|
|
{
|
|
#if BEAST_ASIO_HAS_FUTURE_RETURNS
|
|
boost::asio::detail::async_result_init<
|
|
ErrorCall, void (error_code)> init(
|
|
BOOST_ASIO_MOVE_CAST(ErrorCall)(handler));
|
|
// init.handler is copied
|
|
get_io_service ().post (CompletionCall (
|
|
ErrorCall (init.handler), pure_virtual_error ()));
|
|
return init.result.get();
|
|
#else
|
|
get_io_service ().post (CompletionCall (
|
|
BOOST_ASIO_MOVE_CAST(ErrorCall)(handler),
|
|
pure_virtual_error ()));
|
|
#endif
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
|
|
#if BEAST_ASIO_HAS_BUFFEREDHANDSHAKE
|
|
|
|
error_code handshake (handshake_type type, ConstBuffers const& buffers, error_code& ec)
|
|
{
|
|
using namespace SocketWrapperMemberChecks;
|
|
return handshake (type, buffers, ec,
|
|
EnableIf <has_handshake <this_layer_type,
|
|
error_code (handshake_type, ConstBuffers const&, error_code&)>::value> ());
|
|
}
|
|
|
|
error_code handshake (handshake_type type, ConstBuffers const& buffers, error_code& ec,
|
|
boost::true_type)
|
|
{
|
|
return m_object.handshake (type, buffers, ec);
|
|
}
|
|
|
|
error_code handshake (handshake_type, ConstBuffers const&, error_code& ec,
|
|
boost::false_type)
|
|
{
|
|
return pure_virtual (ec);
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(TransferCall, void (error_code, std::size_t))
|
|
async_handshake (handshake_type type, ConstBuffers const& buffers,
|
|
BOOST_ASIO_MOVE_ARG(TransferCall) handler)
|
|
{
|
|
using namespace SocketWrapperMemberChecks;
|
|
return async_handshake (type, buffers, BOOST_ASIO_MOVE_CAST(TransferCall)(handler),
|
|
EnableIf <has_async_handshake <this_layer_type,
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(TransferCall, void (error_code, std::size_t))
|
|
(handshake_type, ConstBuffers const&, error_code&)>::value> ());
|
|
}
|
|
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(TransferCall, void (error_code, std::size_t))
|
|
async_handshake (handshake_type type, ConstBuffers const& buffers, BOOST_ASIO_MOVE_ARG(TransferCall) handler,
|
|
boost::true_type)
|
|
{
|
|
return m_object.async_handshake (type, buffers,
|
|
BOOST_ASIO_MOVE_CAST(TransferCall)(handler));
|
|
}
|
|
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(TransferCall, void (error_code, std::size_t))
|
|
async_handshake (handshake_type, ConstBuffers const&, BOOST_ASIO_MOVE_ARG(TransferCall) handler,
|
|
boost::false_type)
|
|
{
|
|
#if BEAST_ASIO_HAS_FUTURE_RETURNS
|
|
boost::asio::detail::async_result_init<
|
|
TransferCall, void (error_code, std::size_t)> init(
|
|
BOOST_ASIO_MOVE_CAST(TransferCall)(handler));
|
|
// init.handler is copied
|
|
get_io_service ().post (CompletionCall (
|
|
TransferCall (init.handler), pure_virtual_error (), 0));
|
|
return init.result.get();
|
|
|
|
#else
|
|
get_io_service ().post (CompletionCall (
|
|
BOOST_ASIO_MOVE_CAST(TransferCall)(handler),
|
|
pure_virtual_error (), 0));
|
|
|
|
#endif
|
|
}
|
|
|
|
#endif
|
|
|
|
//--------------------------------------------------------------------------
|
|
|
|
error_code shutdown (error_code& ec)
|
|
{
|
|
using namespace SocketWrapperMemberChecks;
|
|
return shutdown (ec,
|
|
EnableIf <has_shutdown <this_layer_type,
|
|
error_code (error_code&)>::value> ());
|
|
}
|
|
|
|
error_code shutdown (error_code& ec,
|
|
boost::true_type)
|
|
{
|
|
return m_object.shutdown (ec);
|
|
}
|
|
|
|
error_code shutdown (error_code& ec,
|
|
boost::false_type)
|
|
{
|
|
return pure_virtual (ec);
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
|
|
void async_shutdown (BOOST_ASIO_MOVE_ARG(ErrorCall) handler)
|
|
{
|
|
using namespace SocketWrapperMemberChecks;
|
|
return async_shutdown (BOOST_ASIO_MOVE_CAST(ErrorCall)(handler),
|
|
EnableIf <has_async_shutdown <this_layer_type,
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(ErrorCall, void (error_code))
|
|
(BOOST_ASIO_MOVE_ARG(ErrorCall))>::value> ());
|
|
}
|
|
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(ErrorCall, void (error_code))
|
|
async_shutdown (BOOST_ASIO_MOVE_ARG(ErrorCall) handler,
|
|
boost::true_type)
|
|
{
|
|
return m_object.async_shutdown (
|
|
BOOST_ASIO_MOVE_CAST(ErrorCall)(handler));
|
|
}
|
|
|
|
BEAST_ASIO_INITFN_RESULT_TYPE_MEMBER(ErrorCall, void (error_code))
|
|
async_shutdown (BOOST_ASIO_MOVE_ARG(ErrorCall) handler,
|
|
boost::false_type)
|
|
{
|
|
#if BEAST_ASIO_HAS_FUTURE_RETURNS
|
|
boost::asio::detail::async_result_init<
|
|
ErrorCall, void (error_code, std::size_t)> init(
|
|
BOOST_ASIO_MOVE_CAST(ErrorCall)(handler));
|
|
// init.handler is copied
|
|
get_io_service ().post (CompletionCall (
|
|
ErrorCall (init.handler), pure_virtual_error ()));
|
|
return init.result.get();
|
|
|
|
#else
|
|
get_io_service ().post (CompletionCall (
|
|
BOOST_ASIO_MOVE_CAST(ErrorCall)(handler),
|
|
pure_virtual_error ()));
|
|
|
|
#endif
|
|
}
|
|
|
|
private:
|
|
Object m_object;
|
|
};
|
|
|
|
#endif
|