PPTSync.cs

using System;
using System.IO;
using System.IO.Pipes;
using System.Threading;
using UnityEngine;
using Debug = UnityEngine.Debug;

namespace Hikari.PPT {
    public class PPTSync : IDisposable {
        private readonly NamedPipeClientStream pipe;
        private bool firstFrame;
        private const string PipeName = @"ppt-sync";
        private bool disposed;

        public PPTSync() {
            pipe = new NamedPipeClientStream(PipeName);
            try {
                pipe.Connect(1000);
            } catch (Exception) {
                Application.OpenURL(Path.Combine(Application.streamingAssetsPath, "ppt-sync.exe"));
                Thread.Sleep(1000);
                try {
                    pipe.Connect(100);
                } catch (Exception) {
                    Dispose();
                    throw;
                }
            }

            Debug.Log("PPTSync connected");

            firstFrame = true;
        }

        public bool Wait() {
            if (!firstFrame) {
                try {
                    pipe.WriteByte(0);
                    pipe.Flush();
                } catch (IOException e) {
                    return false;
                } catch (ObjectDisposedException e) {
                    return false;
                }
            }

            firstFrame = false;
            try {
                pipe.ReadByte();
            } catch (Exception e) {
                return false;
            }

            return true;
        }

        public void Dispose() {
            if (disposed) return;
            pipe.Dispose();
            disposed = true;
        }
    }
}