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using Ryujinx.Common.Logging;
using Ryujinx.HLE.HOS.Services.Sockets.Bsd.Types;
using System.Collections.Generic;
using System.Net.Sockets;
namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd.Impl
{
class ManagedSocketPollManager : IPollManager
{
private static ManagedSocketPollManager _instance;
public static ManagedSocketPollManager Instance
{
get
{
_instance ??= new ManagedSocketPollManager();
return _instance;
}
}
public bool IsCompatible(PollEvent evnt)
{
return evnt.FileDescriptor is ManagedSocket;
}
public LinuxError Poll(List<PollEvent> events, int timeoutMilliseconds, out int updatedCount)
{
List<Socket> readEvents = new();
List<Socket> writeEvents = new();
List<Socket> errorEvents = new();
updatedCount = 0;
foreach (PollEvent evnt in events)
{
ManagedSocket socket = (ManagedSocket)evnt.FileDescriptor;
bool isValidEvent = evnt.Data.InputEvents == 0;
errorEvents.Add(socket.Socket);
if ((evnt.Data.InputEvents & PollEventTypeMask.Input) != 0)
{
readEvents.Add(socket.Socket);
isValidEvent = true;
}
if ((evnt.Data.InputEvents & PollEventTypeMask.UrgentInput) != 0)
{
readEvents.Add(socket.Socket);
isValidEvent = true;
}
if ((evnt.Data.InputEvents & PollEventTypeMask.Output) != 0)
{
writeEvents.Add(socket.Socket);
isValidEvent = true;
}
if (!isValidEvent)
{
Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported Poll input event type: {evnt.Data.InputEvents}");
return LinuxError.EINVAL;
}
}
try
{
int actualTimeoutMicroseconds = timeoutMilliseconds == -1 ? -1 : timeoutMilliseconds * 1000;
Socket.Select(readEvents, writeEvents, errorEvents, actualTimeoutMicroseconds);
}
catch (SocketException exception)
{
return WinSockHelper.ConvertError((WsaError)exception.ErrorCode);
}
foreach (PollEvent evnt in events)
{
Socket socket = ((ManagedSocket)evnt.FileDescriptor).Socket;
PollEventTypeMask outputEvents = evnt.Data.OutputEvents & ~evnt.Data.InputEvents;
if (errorEvents.Contains(socket))
{
outputEvents |= PollEventTypeMask.Error;
if (!socket.Connected || !socket.IsBound)
{
outputEvents |= PollEventTypeMask.Disconnected;
}
}
if (readEvents.Contains(socket))
{
if ((evnt.Data.InputEvents & PollEventTypeMask.Input) != 0)
{
outputEvents |= PollEventTypeMask.Input;
}
}
if (writeEvents.Contains(socket))
{
outputEvents |= PollEventTypeMask.Output;
}
evnt.Data.OutputEvents = outputEvents;
}
updatedCount = readEvents.Count + writeEvents.Count + errorEvents.Count;
return LinuxError.SUCCESS;
}
public LinuxError Select(List<PollEvent> events, int timeout, out int updatedCount)
{
List<Socket> readEvents = new();
List<Socket> writeEvents = new();
List<Socket> errorEvents = new();
updatedCount = 0;
foreach (PollEvent pollEvent in events)
{
ManagedSocket socket = (ManagedSocket)pollEvent.FileDescriptor;
if (pollEvent.Data.InputEvents.HasFlag(PollEventTypeMask.Input))
{
readEvents.Add(socket.Socket);
}
if (pollEvent.Data.InputEvents.HasFlag(PollEventTypeMask.Output))
{
writeEvents.Add(socket.Socket);
}
if (pollEvent.Data.InputEvents.HasFlag(PollEventTypeMask.Error))
{
errorEvents.Add(socket.Socket);
}
}
Socket.Select(readEvents, writeEvents, errorEvents, timeout);
updatedCount = readEvents.Count + writeEvents.Count + errorEvents.Count;
foreach (PollEvent pollEvent in events)
{
ManagedSocket socket = (ManagedSocket)pollEvent.FileDescriptor;
if (readEvents.Contains(socket.Socket))
{
pollEvent.Data.OutputEvents |= PollEventTypeMask.Input;
}
if (writeEvents.Contains(socket.Socket))
{
pollEvent.Data.OutputEvents |= PollEventTypeMask.Output;
}
if (errorEvents.Contains(socket.Socket))
{
pollEvent.Data.OutputEvents |= PollEventTypeMask.Error;
}
}
return LinuxError.SUCCESS;
}
}
}
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