kernel: Multiplatform thread implementation

src/core/thread.h

@@ -0,0 +1,26 @@
+// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+namespace Core {
+
+class Thread {
+public:
+    using ThreadFunc = void (*)(void*);
+
+    Thread();
+    ~Thread();
+
+    int Create(ThreadFunc func, void* arg);
+    void Exit();
+
+    void* GetHandle() {
+        return native_handle;
+    }
+
+private:
+    void* native_handle;
+};
+
+} // namespace Core