Add JobSystem.Execute utility for quick jobs running

Source/Engine/Threading/JobSystem.cpp

@@ -212,6 +212,23 @@ int32 JobSystemThread::Run()
 
 #endif
 
+void JobSystem::Execute(const Function<void(int32)>& job, int32 jobCount)
+{
+    // TODO: disable async if called on job thread? or maybe Wait should handle waiting in job thread to do the processing?
+    if (jobCount > 1)
+    {
+        // Async
+        const int64 jobWaitHandle = Dispatch(job, jobCount);
+        Wait(jobWaitHandle);
+    }
+    else if (jobCount > 0)
+    {
+        // Sync
+        for (int32 i = 0; i < jobCount; i++)
+            job(i);
+    }
+}
+
 int64 JobSystem::Dispatch(const Function<void(int32)>& job, int32 jobCount)
 {
     PROFILE_CPU();

Source/Engine/Threading/JobSystem.h

@@ -9,7 +9,14 @@
 /// </summary>
 API_CLASS(Static) class FLAXENGINE_API JobSystem
 {
-DECLARE_SCRIPTING_TYPE_MINIMAL(JobSystem);
+    DECLARE_SCRIPTING_TYPE_MINIMAL(JobSystem);
+
+    /// <summary>
+    /// Executes the job (utility to call dispatch and wait for the end).
+    /// </summary>
+    /// <param name="job">The job. Argument is an index of the job execution.</param>
+    /// <param name="jobCount">The job executions count.</param>
+    API_FUNCTION() static void Execute(const Function<void(int32)>& job, int32 jobCount = 1);
 
     /// <summary>
     /// Dispatches the job for the execution.