multicast.cpp
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//
// multicast.cpp
// ~~~~~~~~~~~~~
//
// 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)
//
// 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 "asio/ip/multicast.hpp"
#include "asio/io_context.hpp"
#include "asio/ip/udp.hpp"
#include "../unit_test.hpp"
//------------------------------------------------------------------------------
// ip_multicast_compile test
// ~~~~~~~~~~~~~~~~~~~~~~~~~
// The following test checks that all nested classes, enums and constants in
// ip::multicast compile and link correctly. Runtime failures are ignored.
namespace ip_multicast_compile {
void test()
{
using namespace asio;
namespace ip = asio::ip;
try
{
io_context ioc;
ip::udp::socket sock(ioc);
const ip::address address;
const ip::address_v4 address_v4;
const ip::address_v6 address_v6;
// join_group class.
ip::multicast::join_group join_group1;
ip::multicast::join_group join_group2(address);
ip::multicast::join_group join_group3(address_v4);
ip::multicast::join_group join_group4(address_v4, address_v4);
ip::multicast::join_group join_group5(address_v6);
ip::multicast::join_group join_group6(address_v6, 1);
sock.set_option(join_group6);
// leave_group class.
ip::multicast::leave_group leave_group1;
ip::multicast::leave_group leave_group2(address);
ip::multicast::leave_group leave_group3(address_v4);
ip::multicast::leave_group leave_group4(address_v4, address_v4);
ip::multicast::leave_group leave_group5(address_v6);
ip::multicast::leave_group leave_group6(address_v6, 1);
sock.set_option(leave_group6);
// outbound_interface class.
ip::multicast::outbound_interface outbound_interface1;
ip::multicast::outbound_interface outbound_interface2(address_v4);
ip::multicast::outbound_interface outbound_interface3(1);
sock.set_option(outbound_interface3);
// hops class.
ip::multicast::hops hops1(1024);
sock.set_option(hops1);
ip::multicast::hops hops2;
sock.get_option(hops2);
hops1 = 1;
(void)static_cast<int>(hops1.value());
// enable_loopback class.
ip::multicast::enable_loopback enable_loopback1(true);
sock.set_option(enable_loopback1);
ip::multicast::enable_loopback enable_loopback2;
sock.get_option(enable_loopback2);
enable_loopback1 = true;
(void)static_cast<bool>(enable_loopback1);
(void)static_cast<bool>(!enable_loopback1);
(void)static_cast<bool>(enable_loopback1.value());
}
catch (std::exception&)
{
}
}
} // namespace ip_multicast_compile
//------------------------------------------------------------------------------
// ip_multicast_runtime test
// ~~~~~~~~~~~~~~~~~~~~~~~~~
// The following test checks the runtime operation of the socket options defined
// in the ip::multicast namespace.
namespace ip_multicast_runtime {
#if defined(__hpux)
// HP-UX doesn't declare this function extern "C", so it is declared again here
// to avoid a linker error about an undefined symbol.
extern "C" unsigned int if_nametoindex(const char*);
#endif // defined(__hpux)
void test()
{
using namespace asio;
namespace ip = asio::ip;
io_context ioc;
asio::error_code ec;
ip::udp::endpoint ep_v4(ip::address_v4::loopback(), 0);
ip::udp::socket sock_v4(ioc);
sock_v4.open(ep_v4.protocol(), ec);
sock_v4.bind(ep_v4, ec);
bool have_v4 = !ec;
ip::udp::endpoint ep_v6(ip::address_v6::loopback(), 0);
ip::udp::socket sock_v6(ioc);
sock_v6.open(ep_v6.protocol(), ec);
sock_v6.bind(ep_v6, ec);
bool have_v6 = !ec;
ASIO_CHECK(have_v4 || have_v6);
#if defined(ASIO_WINDOWS) && defined(UNDER_CE)
// Windows CE seems to have problems with some multicast group addresses.
// The following address works on CE, but as it is not a private multicast
// address it will not be used on other platforms.
const ip::address multicast_address_v4 = ip::make_address("239.0.0.4", ec);
#else // defined(ASIO_WINDOWS) && defined(UNDER_CE)
const ip::address multicast_address_v4 = ip::make_address("239.255.0.1", ec);
#endif // defined(ASIO_WINDOWS) && defined(UNDER_CE)
ASIO_CHECK(!have_v4 || !ec);
#if (defined(__MACH__) && defined(__APPLE__)) \
|| defined(__FreeBSD__) \
|| defined(__NetBSD__) \
|| defined(__OpenBSD__)
const ip::address multicast_address_v6 = ip::make_address("ff02::1%lo0", ec);
#else // (defined(__MACH__) && defined(__APPLE__))
// || defined(__FreeBSD__)
// || defined(__NetBSD__)
// || defined(__OpenBSD__)
const ip::address multicast_address_v6 = ip::make_address("ff01::1", ec);
#endif // (defined(__MACH__) && defined(__APPLE__))
// || defined(__FreeBSD__)
// || defined(__NetBSD__)
// || defined(__OpenBSD__)
ASIO_CHECK(!have_v6 || !ec);
// join_group class.
if (have_v4)
{
ip::multicast::join_group join_group(multicast_address_v4);
sock_v4.set_option(join_group, ec);
ASIO_CHECK_MESSAGE(!ec || ec == error::no_such_device,
ec.value() << ", " << ec.message());
if (!ec)
{
// leave_group class.
ip::multicast::leave_group leave_group(multicast_address_v4);
sock_v4.set_option(leave_group, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
}
}
if (have_v6)
{
ip::multicast::join_group join_group(multicast_address_v6);
sock_v6.set_option(join_group, ec);
ASIO_CHECK_MESSAGE(!ec || ec == error::no_such_device,
ec.value() << ", " << ec.message());
if (!ec)
{
// leave_group class.
ip::multicast::leave_group leave_group(multicast_address_v6);
sock_v6.set_option(leave_group, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
}
}
// outbound_interface class.
if (have_v4)
{
ip::multicast::outbound_interface outbound_interface(
ip::address_v4::loopback());
sock_v4.set_option(outbound_interface, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
}
if (have_v6)
{
#if defined(__hpux)
ip::multicast::outbound_interface outbound_interface(if_nametoindex("lo0"));
#else
ip::multicast::outbound_interface outbound_interface(1);
#endif
sock_v6.set_option(outbound_interface, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
}
// hops class.
if (have_v4)
{
ip::multicast::hops hops1(1);
ASIO_CHECK(hops1.value() == 1);
sock_v4.set_option(hops1, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ip::multicast::hops hops2;
sock_v4.get_option(hops2, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ASIO_CHECK(hops2.value() == 1);
ip::multicast::hops hops3(0);
ASIO_CHECK(hops3.value() == 0);
sock_v4.set_option(hops3, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ip::multicast::hops hops4;
sock_v4.get_option(hops4, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ASIO_CHECK(hops4.value() == 0);
}
if (have_v6)
{
ip::multicast::hops hops1(1);
ASIO_CHECK(hops1.value() == 1);
sock_v6.set_option(hops1, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ip::multicast::hops hops2;
sock_v6.get_option(hops2, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ASIO_CHECK(hops2.value() == 1);
ip::multicast::hops hops3(0);
ASIO_CHECK(hops3.value() == 0);
sock_v6.set_option(hops3, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ip::multicast::hops hops4;
sock_v6.get_option(hops4, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ASIO_CHECK(hops4.value() == 0);
}
// enable_loopback class.
if (have_v4)
{
ip::multicast::enable_loopback enable_loopback1(true);
ASIO_CHECK(enable_loopback1.value());
ASIO_CHECK(static_cast<bool>(enable_loopback1));
ASIO_CHECK(!!enable_loopback1);
sock_v4.set_option(enable_loopback1, ec);
#if defined(ASIO_WINDOWS) && defined(UNDER_CE)
// Option is not supported under Windows CE.
ASIO_CHECK_MESSAGE(ec == asio::error::no_protocol_option,
ec.value() << ", " << ec.message());
#else // defined(ASIO_WINDOWS) && defined(UNDER_CE)
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
#endif // defined(ASIO_WINDOWS) && defined(UNDER_CE)
ip::multicast::enable_loopback enable_loopback2;
sock_v4.get_option(enable_loopback2, ec);
#if defined(ASIO_WINDOWS) && defined(UNDER_CE)
// Not supported under Windows CE but can get value.
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
#else // defined(ASIO_WINDOWS) && defined(UNDER_CE)
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ASIO_CHECK(enable_loopback2.value());
ASIO_CHECK(static_cast<bool>(enable_loopback2));
ASIO_CHECK(!!enable_loopback2);
#endif // defined(ASIO_WINDOWS) && defined(UNDER_CE)
ip::multicast::enable_loopback enable_loopback3(false);
ASIO_CHECK(!enable_loopback3.value());
ASIO_CHECK(!static_cast<bool>(enable_loopback3));
ASIO_CHECK(!enable_loopback3);
sock_v4.set_option(enable_loopback3, ec);
#if defined(ASIO_WINDOWS) && defined(UNDER_CE)
// Option is not supported under Windows CE.
ASIO_CHECK_MESSAGE(ec == asio::error::no_protocol_option,
ec.value() << ", " << ec.message());
#else // defined(ASIO_WINDOWS) && defined(UNDER_CE)
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
#endif // defined(ASIO_WINDOWS) && defined(UNDER_CE)
ip::multicast::enable_loopback enable_loopback4;
sock_v4.get_option(enable_loopback4, ec);
#if defined(ASIO_WINDOWS) && defined(UNDER_CE)
// Not supported under Windows CE but can get value.
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
#else // defined(ASIO_WINDOWS) && defined(UNDER_CE)
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ASIO_CHECK(!enable_loopback4.value());
ASIO_CHECK(!static_cast<bool>(enable_loopback4));
ASIO_CHECK(!enable_loopback4);
#endif // defined(ASIO_WINDOWS) && defined(UNDER_CE)
}
if (have_v6)
{
ip::multicast::enable_loopback enable_loopback1(true);
ASIO_CHECK(enable_loopback1.value());
ASIO_CHECK(static_cast<bool>(enable_loopback1));
ASIO_CHECK(!!enable_loopback1);
sock_v6.set_option(enable_loopback1, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ip::multicast::enable_loopback enable_loopback2;
sock_v6.get_option(enable_loopback2, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ASIO_CHECK(enable_loopback2.value());
ASIO_CHECK(static_cast<bool>(enable_loopback2));
ASIO_CHECK(!!enable_loopback2);
ip::multicast::enable_loopback enable_loopback3(false);
ASIO_CHECK(!enable_loopback3.value());
ASIO_CHECK(!static_cast<bool>(enable_loopback3));
ASIO_CHECK(!enable_loopback3);
sock_v6.set_option(enable_loopback3, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ip::multicast::enable_loopback enable_loopback4;
sock_v6.get_option(enable_loopback4, ec);
ASIO_CHECK_MESSAGE(!ec, ec.value() << ", " << ec.message());
ASIO_CHECK(!enable_loopback4.value());
ASIO_CHECK(!static_cast<bool>(enable_loopback4));
ASIO_CHECK(!enable_loopback4);
}
}
} // namespace ip_multicast_runtime
//------------------------------------------------------------------------------
ASIO_TEST_SUITE
(
"ip/multicast",
ASIO_TEST_CASE(ip_multicast_compile::test)
ASIO_TEST_CASE(ip_multicast_runtime::test)
)