1 files changed, 96 insertions, 0 deletions
diff --git a/Ryujinx.HLE/HOS/Services/Sockets/Bsd/Impl/EventFileDescriptorPollManager.cs b/Ryujinx.HLE/HOS/Services/Sockets/Bsd/Impl/EventFileDescriptorPollManager.cs
new file mode 100644
index 00000000..8bd9652b
--- /dev/null
+++ b/Ryujinx.HLE/HOS/Services/Sockets/Bsd/Impl/EventFileDescriptorPollManager.cs
@@ -0,0 +1,96 @@
+using Ryujinx.Common.Logging;
+using System.Collections.Generic;
+using System.Threading;
+
+namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
+{
+    class EventFileDescriptorPollManager : IPollManager
+    {
+        private static EventFileDescriptorPollManager _instance;
+
+        public static EventFileDescriptorPollManager Instance
+        {
+            get
+            {
+                if (_instance == null)
+                {
+                    _instance = new EventFileDescriptorPollManager();
+                }
+
+                return _instance;
+            }
+        }
+
+        public bool IsCompatible(PollEvent evnt)
+        {
+            return evnt.FileDescriptor is EventFileDescriptor;
+        }
+
+        public LinuxError Poll(List<PollEvent> events, int timeoutMilliseconds, out int updatedCount)
+        {
+            updatedCount = 0;
+
+            List<ManualResetEvent> waiters = new List<ManualResetEvent>();
+
+            for (int i = 0; i < events.Count; i++)
+            {
+                PollEvent evnt = events[i];
+
+                EventFileDescriptor socket = (EventFileDescriptor)evnt.FileDescriptor;
+
+                bool isValidEvent = false;
+
+                if (evnt.Data.InputEvents.HasFlag(PollEventTypeMask.Input) ||
+                    evnt.Data.InputEvents.HasFlag(PollEventTypeMask.UrgentInput))
+                {
+                    waiters.Add(socket.ReadEvent);
+
+                    isValidEvent = true;
+                }
+                if (evnt.Data.InputEvents.HasFlag(PollEventTypeMask.Output))
+                {
+                    waiters.Add(socket.WriteEvent);
+
+                    isValidEvent = true;
+                }
+
+                if (!isValidEvent)
+                {
+                    Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported Poll input event type: {evnt.Data.InputEvents}");
+
+                    return LinuxError.EINVAL;
+                }
+            }
+
+            int index = WaitHandle.WaitAny(waiters.ToArray(), timeoutMilliseconds);
+
+            if (index != WaitHandle.WaitTimeout)
+            {
+                for (int i = 0; i < events.Count; i++)
+                {
+                    PollEvent evnt = events[i];
+
+                    EventFileDescriptor socket = (EventFileDescriptor)evnt.FileDescriptor;
+
+                    if ((evnt.Data.InputEvents.HasFlag(PollEventTypeMask.Input) ||
+                        evnt.Data.InputEvents.HasFlag(PollEventTypeMask.UrgentInput))
+                        && socket.ReadEvent.WaitOne(0))
+                    {
+                        waiters.Add(socket.ReadEvent);
+                    }
+                    if ((evnt.Data.InputEvents.HasFlag(PollEventTypeMask.Output))
+                        && socket.WriteEvent.WaitOne(0))
+                    {
+                        waiters.Add(socket.WriteEvent);
+                    }
+                }
+            }
+            else
+            {
+                return LinuxError.ETIMEDOUT;
+            }
+
+            return LinuxError.SUCCESS;
+        }
+    }
+}