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InputCommon: instead of blocking on individual DSU server sockets, block on a selector built up from all server sockets

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This commit is contained in:
iwubcode 2021-03-03 17:57:18 -06:00
parent 5f7d935b0a
commit dbb0b72cc5
1 changed files with 35 additions and 29 deletions
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64
Source/Core/InputCommon/ControllerInterface/DualShockUDPClient/DualShockUDPClient.cpp
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@ -202,18 +202,6 @@ static bool IsSameController(const Proto::MessageType::PortInfo& a,
std::tie(b.pad_id, b.pad_state, b.model, b.connection_type, b.pad_mac_address);
}
static sf::Socket::Status ReceiveWithTimeout(sf::UdpSocket& socket, void* data, std::size_t size,
std::size_t& received, sf::IpAddress& remoteAddress,
unsigned short& remotePort, sf::Time timeout)
{
sf::SocketSelector selector;
selector.add(socket);
if (selector.wait(timeout))
return socket.receive(data, size, received, remoteAddress, remotePort);
else
return sf::Socket::NotReady;
}
static void HotplugThreadFunc()
{
Common::SetCurrentThreadName("DualShockUDPClient Hotplug Thread");
@ -242,32 +230,50 @@ static void HotplugThreadFunc()
}
}
sf::SocketSelector selector;
for (auto& server : s_servers)
{
// Receive controller port info
using namespace std::chrono;
using namespace std::chrono_literals;
selector.add(server.m_socket);
}
using namespace std::chrono;
using namespace std::chrono_literals;
const auto timeout = s_next_listports - SteadyClock::now();
// Selector's wait treats a timeout of zero as infinite timeout, which we don't want
const auto timeout_ms = std::max(duration_cast<milliseconds>(timeout), 1ms);
if (!selector.wait(sf::milliseconds(timeout_ms.count())))
{
continue;
}
for (auto& server : s_servers)
{
if (!selector.isReady(server.m_socket))
{
continue;
}
Proto::Message<Proto::MessageType::FromServer> msg;
const auto timeout = s_next_listports - SteadyClock::now();
// ReceiveWithTimeout treats a timeout of zero as infinite timeout, which we don't want
const auto timeout_ms = std::max(duration_cast<milliseconds>(timeout), 1ms);
std::size_t received_bytes;
sf::IpAddress sender;
u16 port;
if (ReceiveWithTimeout(server.m_socket, &msg, sizeof(msg), received_bytes, sender, port,
sf::milliseconds(timeout_ms.count())) == sf::Socket::Status::Done)
if (server.m_socket.receive(&msg, sizeof(msg), received_bytes, sender, port) !=
sf::Socket::Status::Done)
{
if (auto port_info = msg.CheckAndCastTo<Proto::MessageType::PortInfo>())
continue;
}
if (auto port_info = msg.CheckAndCastTo<Proto::MessageType::PortInfo>())
{
const bool port_changed =
!IsSameController(*port_info, server.m_port_info[port_info->pad_id]);
{
const bool port_changed =
!IsSameController(*port_info, server.m_port_info[port_info->pad_id]);
{
std::lock_guard lock{server.m_port_info_mutex};
server.m_port_info[port_info->pad_id] = *port_info;
}
if (port_changed)
PopulateDevices();
std::lock_guard lock{server.m_port_info_mutex};
server.m_port_info[port_info->pad_id] = *port_info;
}
if (port_changed)
PopulateDevices();
}
}
}