Ref T570 Measure sortHint using true CPU time routines.

src/blackmisc/cputime.h

@@ -0,0 +1,30 @@
+/* Copyright (C) 2019
+ * swift Project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution. No part of swift project, including this file, may be copied, modified, propagated,
+ * or distributed except according to the terms contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKMISC_CPUTIME_H
+#define BLACKMISC_CPUTIME_H
+
+#include "blackmisc/blackmiscexport.h"
+
+namespace BlackMisc
+{
+    /*!
+     * Get the time in milliseconds that the CPU has spent executing the current process.
+     * This is the sum of getThreadCpuTimeMs() for all threads.
+     */
+    BLACKMISC_EXPORT int getProcessCpuTimeMs();
+
+    /*!
+     * Get the time in milliseconds that the CPU has spent executing the current thread.
+     */
+    BLACKMISC_EXPORT int getThreadCpuTimeMs();
+}
+
+#endif