84 lines
3.0 KiB
C#
84 lines
3.0 KiB
C#
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// Copyright (c) 2015 - 2023 Doozy Entertainment. All Rights Reserved.
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// This code can only be used under the standard Unity Asset Store End User License Agreement
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// A Copy of the EULA APPENDIX 1 is available at http://unity3d.com/company/legal/as_terms
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using System;
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using System.Collections.Generic;
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using System.Threading;
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using System.Threading.Tasks;
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// ReSharper disable MemberCanBePrivate.Global
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// ReSharper disable UnusedAutoPropertyAccessor.Global
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namespace Doozy.Runtime.Common
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{
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/// <summary>
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/// Specialized class that allows call a method on the main thread.
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/// This is useful when you have to call a Unity API from a thread that is not the main thread.
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/// </summary>
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public class SyncContext : SingletonBehaviour<SyncContext>
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{
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/// <summary> Task scheduler that runs tasks on the main thread </summary>
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public static TaskScheduler unityTaskScheduler { get; private set; }
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/// <summary> Unity's main thread </summary>
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public static int unityThread { get; private set; }
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/// <summary> Synchronization context for the main thread </summary>
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public static SynchronizationContext unitySynchronizationContext { get; private set; }
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/// <summary> Queue of tasks to be executed on the main thread </summary>
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public static Queue<Action> runInUpdate { get; } = new Queue<Action>();
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/// <summary> Returns TRUE if the current thread is the Unity main thread </summary>
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public static bool isOnUnityThread => unityThread == Thread.CurrentThread.ManagedThreadId;
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protected override void Awake()
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{
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base.Awake();
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unitySynchronizationContext = SynchronizationContext.Current;
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unityThread = Thread.CurrentThread.ManagedThreadId;
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unityTaskScheduler = TaskScheduler.FromCurrentSynchronizationContext();
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}
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private void Update()
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{
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//if there are no actions in the queue, do nothing
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while (runInUpdate.Count > 0)
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{
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Action action = null;
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lock (runInUpdate)
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{
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if (runInUpdate.Count > 0)
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action = runInUpdate.Dequeue();
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}
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action?.Invoke();
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}
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}
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public static void Initialize()
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{
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_ = instance;
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}
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/// <summary> Runs the given action on the main thread </summary>
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/// <param name="action"> Action to run on the main thread </param>
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public static void RunOnUnityThread(Action action)
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{
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Initialize();
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if (unityThread == Thread.CurrentThread.ManagedThreadId) //if we are already on the main thread, just run the action
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{
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action();
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return;
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}
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//if we are not on the main thread, add the action to the queue
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lock (runInUpdate)
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{
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runInUpdate.Enqueue(action);
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}
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}
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}
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}
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