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asio/test/generic/seq_packet_protocol.cpp
Christopher Kohlhoff abd9cdb60f Add generic socket protocols and converting move constructors.
Four new protocol classes have been added:

- asio::generic::datagram_protocol
- asio::generic::raw_protocol
- asio::generic::seq_packet_protocol
- asio::generic::stream_protocol

These classes implement the Protocol type requirements, but allow the
user to specify the address family (e.g. AF_INET) and protocol type
(e.g. IPPROTO_TCP) at runtime.

A new endpoint class template, asio::generic::basic_endpoint, has been
added to support these new protocol classes. This endpoint can hold any
other endpoint type, provided its native representation fits into a
sockaddr_storage object.

When using C++11, it is now possible to perform move construction from a
socket (or acceptor) object to convert to the more generic protocol's
socket (or acceptor) type. If the protocol conversion is valid:

  Protocol1 p1 = ...;
  Protocol2 p2(p1);

then the corresponding socket conversion is allowed:

  Protocol1::socket socket1(io_service);
  ...
  Protocol2::socket socket2(std::move(socket1));

For example, one possible conversion is from a TCP socket to a generic
stream-oriented socket:

  asio::ip::tcp::socket socket1(io_service);
  ...
  asio::generic::stream_protocol::socket socket2(std::move(socket1));

The conversion is also available for move-assignment. Note that these
conversions are not limited to the newly added generic protocol classes.
User-defined protocols may take advantage of this feature by similarly
ensuring the conversion from Protocol1 to Protocol2 is valid, as above.

As a convenience, the socket acceptor's accept() and async_accept()
functions have been changed so that they can directly accept into a
different protocol's socket type, provided the protocol conversion is
valid. For example, the following is now possible:

  asio::ip::tcp::acceptor acceptor(io_service);
  ...
  asio::generic::stream_protocol::socket socket1(io_service);
  acceptor.accept(socket1);


[SVN r84363]
2013-05-19 04:55:11 +00:00

188 lines
5.7 KiB
C++

//
// generic/seq_packet_protocol.cpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2013 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)
//
// Disable autolinking for unit tests.
#if !defined(BOOST_ALL_NO_LIB)
#define BOOST_ALL_NO_LIB 1
#endif // !defined(BOOST_ALL_NO_LIB)
// Test that header file is self-contained.
#include <boost/asio/generic/seq_packet_protocol.hpp>
#include <cstring>
#include <boost/asio/io_service.hpp>
#include "../unit_test.hpp"
//------------------------------------------------------------------------------
// generic_seq_packet_protocol_socket_compile test
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// The following test checks that all public member functions on the class
// generic::seq_packet_socket::socket compile and link correctly. Runtime
// failures are ignored.
namespace generic_seq_packet_protocol_socket_compile {
void connect_handler(const boost::system::error_code&)
{
}
void send_handler(const boost::system::error_code&, std::size_t)
{
}
void receive_handler(const boost::system::error_code&, std::size_t)
{
}
void test()
{
using namespace boost::asio;
namespace generic = boost::asio::generic;
typedef generic::seq_packet_protocol spp;
try
{
io_service ios;
char mutable_char_buffer[128] = "";
const char const_char_buffer[128] = "";
const socket_base::message_flags in_flags = 0;
socket_base::message_flags out_flags = 0;
socket_base::send_buffer_size socket_option;
socket_base::bytes_readable io_control_command;
boost::system::error_code ec;
// basic_seq_packet_socket constructors.
spp::socket socket1(ios);
spp::socket socket2(ios, spp(AF_INET, 0));
spp::socket socket3(ios, spp::endpoint());
int native_socket1 = ::socket(AF_INET, SOCK_SEQPACKET, 0);
spp::socket socket4(ios, spp(AF_INET, 0), native_socket1);
#if defined(BOOST_ASIO_HAS_MOVE)
spp::socket socket5(std::move(socket4));
#endif // defined(BOOST_ASIO_HAS_MOVE)
// basic_seq_packet_socket operators.
#if defined(BOOST_ASIO_HAS_MOVE)
socket1 = spp::socket(ios);
socket1 = std::move(socket2);
#endif // defined(BOOST_ASIO_HAS_MOVE)
// basic_io_object functions.
io_service& ios_ref = socket1.get_io_service();
(void)ios_ref;
// basic_socket functions.
spp::socket::lowest_layer_type& lowest_layer = socket1.lowest_layer();
(void)lowest_layer;
socket1.open(spp(AF_INET, 0));
socket1.open(spp(AF_INET, 0), ec);
int native_socket2 = ::socket(AF_INET, SOCK_SEQPACKET, 0);
socket1.assign(spp(AF_INET, 0), native_socket2);
int native_socket3 = ::socket(AF_INET, SOCK_SEQPACKET, 0);
socket1.assign(spp(AF_INET, 0), native_socket3, ec);
bool is_open = socket1.is_open();
(void)is_open;
socket1.close();
socket1.close(ec);
spp::socket::native_type native_socket4 = socket1.native();
(void)native_socket4;
socket1.cancel();
socket1.cancel(ec);
bool at_mark1 = socket1.at_mark();
(void)at_mark1;
bool at_mark2 = socket1.at_mark(ec);
(void)at_mark2;
std::size_t available1 = socket1.available();
(void)available1;
std::size_t available2 = socket1.available(ec);
(void)available2;
socket1.bind(spp::endpoint());
socket1.bind(spp::endpoint(), ec);
socket1.connect(spp::endpoint());
socket1.connect(spp::endpoint(), ec);
socket1.async_connect(spp::endpoint(), connect_handler);
socket1.set_option(socket_option);
socket1.set_option(socket_option, ec);
socket1.get_option(socket_option);
socket1.get_option(socket_option, ec);
socket1.io_control(io_control_command);
socket1.io_control(io_control_command, ec);
spp::endpoint endpoint1 = socket1.local_endpoint();
spp::endpoint endpoint2 = socket1.local_endpoint(ec);
spp::endpoint endpoint3 = socket1.remote_endpoint();
spp::endpoint endpoint4 = socket1.remote_endpoint(ec);
socket1.shutdown(socket_base::shutdown_both);
socket1.shutdown(socket_base::shutdown_both, ec);
// basic_seq_packet_socket functions.
socket1.send(buffer(mutable_char_buffer), in_flags);
socket1.send(buffer(const_char_buffer), in_flags);
socket1.send(null_buffers(), in_flags);
socket1.send(buffer(mutable_char_buffer), in_flags, ec);
socket1.send(buffer(const_char_buffer), in_flags, ec);
socket1.send(null_buffers(), in_flags, ec);
socket1.async_send(buffer(mutable_char_buffer), in_flags, send_handler);
socket1.async_send(buffer(const_char_buffer), in_flags, send_handler);
socket1.async_send(null_buffers(), in_flags, send_handler);
socket1.receive(buffer(mutable_char_buffer), out_flags);
socket1.receive(null_buffers(), out_flags);
socket1.receive(buffer(mutable_char_buffer), in_flags, out_flags);
socket1.receive(null_buffers(), in_flags, out_flags);
socket1.receive(buffer(mutable_char_buffer), in_flags, out_flags, ec);
socket1.receive(null_buffers(), in_flags, out_flags, ec);
socket1.async_receive(buffer(mutable_char_buffer), out_flags,
receive_handler);
socket1.async_receive(null_buffers(), out_flags, receive_handler);
socket1.async_receive(buffer(mutable_char_buffer), in_flags,
out_flags, receive_handler);
socket1.async_receive(null_buffers(), in_flags, out_flags, receive_handler);
}
catch (std::exception&)
{
}
}
} // namespace generic_seq_packet_protocol_socket_compile
//------------------------------------------------------------------------------
BOOST_ASIO_TEST_SUITE
(
"generic/seq_packet_protocol",
BOOST_ASIO_TEST_CASE(generic_seq_packet_protocol_socket_compile::test)
)