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minor code optimization in broadcast_socket.cpp

This commit is contained in:
Alden Torres 2017-08-29 12:06:56 -04:00 committed by Arvid Norberg
parent 5db597c8b3
commit d0ea585859
1 changed files with 8 additions and 7 deletions
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15
src/broadcast_socket.cpp
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@ -69,11 +69,12 @@ namespace libtorrent {
#if TORRENT_USE_IPV6
if (a.is_v6())
{
return a.to_v6().is_loopback()
|| a.to_v6().is_link_local()
|| a.to_v6().is_multicast_link_local()
address_v6 const a6 = a.to_v6();
return a6.is_loopback()
|| a6.is_link_local()
|| a6.is_multicast_link_local()
// fc00::/7, unique local address
|| (a.to_v6().to_bytes()[0] & 0xfe) == 0xfc;
|| (a6.to_bytes()[0] & 0xfe) == 0xfc;
}
#endif
address_v4 a4 = a.to_v4();
@ -123,7 +124,7 @@ namespace libtorrent {
if (!addr.is_v6()) return false;
std::uint8_t teredo_prefix[] = {0x20, 0x01, 0, 0};
address_v6::bytes_type b = addr.to_v6().to_bytes();
return memcmp(&b[0], teredo_prefix, 4) == 0;
return std::memcmp(&b[0], teredo_prefix, 4) == 0;
} TORRENT_CATCH(std::exception const&) { return false; }
#else
TORRENT_UNUSED(addr);
@ -219,7 +220,7 @@ namespace libtorrent {
if (ec) return;
s->set_option(enable_loopback(loopback), ec);
if (ec) return;
m_sockets.push_back(socket_entry(s));
m_sockets.emplace_back(s);
socket_entry& se = m_sockets.back();
ADD_OUTSTANDING_ASYNC("broadcast_socket::on_receive");
s->async_receive_from(boost::asio::buffer(se.buffer, sizeof(se.buffer))
@ -237,7 +238,7 @@ namespace libtorrent {
s->bind(udp::endpoint(addr, 0), ec);
if (ec) return;
m_unicast_sockets.push_back(socket_entry(s, mask));
m_unicast_sockets.emplace_back(s, mask);
socket_entry& se = m_unicast_sockets.back();
// allow sending broadcast messages