Add SetThreadAffinityMask and SetThreadPriority and thread name for Apple platforms

Source/Engine/Platform/Apple/ApplePlatform.cpp

@@ -19,6 +19,7 @@
 #include "Engine/Platform/StringUtils.h"
 #include "Engine/Platform/WindowsManager.h"
 #include "Engine/Platform/Clipboard.h"
+#include "Engine/Platform/Thread.h"
 #include "Engine/Platform/IGuiData.h"
 #include "Engine/Platform/Base/PlatformUtils.h"
 #include "Engine/Utilities/StringConverter.h"
@@ -176,12 +177,19 @@ uint64 ApplePlatform::GetCurrentThreadID()
 
 void ApplePlatform::SetThreadPriority(ThreadPriority priority)
 {
-    // TODO: impl this
+    struct sched_param sched;
+    Platform::MemoryClear(&sched, sizeof(struct sched_param));
+    int32 policy = SCHED_RR;
+    pthread_getschedparam(pthread_self(), &policy, &sched);
+    sched.sched_priority = AppleThread::GetAppleThreadPriority(priority);
+    pthread_setschedparam(pthread_self(), policy, &sched);
 }
 
 void ApplePlatform::SetThreadAffinityMask(uint64 affinityMask)
 {
-    // TODO: impl this
+    thread_affinity_policy policy;
+    policy.affinity_tag = affinityMask;
+    thread_policy_set(pthread_mach_thread_np(pthread_self()), THREAD_AFFINITY_POLICY, (integer_t*)&policy, THREAD_AFFINITY_POLICY_COUNT);
 }
 
 void ApplePlatform::Sleep(int32 milliseconds)

Source/Engine/Platform/Apple/AppleThread.h

@@ -40,10 +40,7 @@ public:
         return (AppleThread*)Setup(New<AppleThread>(runnable, name, priority), stackSize);
     }
 
-protected:
-
-    // [UnixThread]
-    int32 GetThreadPriority(ThreadPriority priority) override
+    static int32 GetAppleThreadPriority(ThreadPriority priority)
     {
         switch (priority)
         {
@@ -60,6 +57,14 @@ protected:
         }
         return 31;
     }
+
+protected:
+
+    // [UnixThread]
+    int32 GetThreadPriority(ThreadPriority priority) override
+    {
+        return GetAppleThreadPriority(priority);
+    }
     int32 Start(pthread_attr_t& attr) override
     {
         return pthread_create(&_thread, &attr, ThreadProc, this);

Source/Engine/Platform/Unix/UnixThread.cpp

@@ -26,6 +26,12 @@ int32 UnixThread::Start(pthread_attr_t& attr)
 void* UnixThread::ThreadProc(void* pThis)
 {
     auto thread = (UnixThread*)pThis;
+#if PLATFORM_APPLE_FAMILY
+    // Apple doesn't support creating named thread so assign name here
+    {
+        pthread_setname_np(StringAnsi(thread->GetName()).Get());
+    }
+#endif
     const int32 exitCode = thread->Run();
     return (void*)(uintptr)exitCode;
 }