1 files changed, 37 insertions, 0 deletions
diff --git a/libtest/testbusy.c b/libtest/testbusy.c
new file mode 100644
index 0000000..c1d4427
--- /dev/null
+++ b/libtest/testbusy.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2014, 2018 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/test-info.h>
+#include <rtems/score/threadimpl.h>
+
+void rtems_test_busy_cpu_usage( time_t seconds, long nanoseconds )
+{
+  Thread_Control    *executing;
+  Timestamp_Control  busy;
+  Timestamp_Control  start;
+  Timestamp_Control  now;
+
+  executing = _Thread_Get_executing();
+  _Thread_Get_CPU_time_used( executing, &start );
+  _Timestamp_Set( &busy, seconds, nanoseconds );
+
+  do {
+    _Thread_Get_CPU_time_used( executing, &now );
+  } while ( now - start < busy );
+}