Add Job System

Source/Engine/Threading/JobSystem.h

@@ -0,0 +1,32 @@
+// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#include "Engine/Core/Delegate.h"
+
+/// <summary>
+/// Lightweight multi-threaded jobs execution scheduler. Uses a pool of threads and supports work-stealing concept.
+/// </summary>
+API_CLASS(Static) class FLAXENGINE_API JobSystem
+{
+DECLARE_SCRIPTING_TYPE_MINIMAL(JobSystem);
+
+    /// <summary>
+    /// Dispatches the job for the execution.
+    /// </summary>
+    /// <param name="job">The job. Argument is an index of the job execution.</param>
+    /// <param name="jobCount">The job executions count.</param>
+    /// <returns>The label identifying this dispatch. Can be used to wait for the execution end.</returns>
+    API_FUNCTION() static int64 Dispatch(const Function<void(int32)>& job, int32 jobCount = 1);
+
+    /// <summary>
+    /// Waits for all dispatched jobs to finish.
+    /// </summary>
+    API_FUNCTION() static void Wait();
+
+    /// <summary>
+    /// Waits for all dispatched jobs until a given label to finish (i.e. waits for a Dispatch that returned that label).
+    /// </summary>
+    /// <param name="label">The label.</param>
+    API_FUNCTION() static void Wait(int64 label);
+};