1 files changed, 60 insertions, 0 deletions
diff --git a/cpukit/libmisc/cpuuse/cpuusagereset.c b/cpukit/libmisc/cpuuse/cpuusagereset.c
new file mode 100644
index 0000000000..0bf46903f1
--- /dev/null
+++ b/cpukit/libmisc/cpuuse/cpuusagereset.c
@@ -0,0 +1,60 @@
+/*
+ *  CPU Usage Reporter
+ *
+ *  COPYRIGHT (c) 1989-2009
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+#include <rtems/score/timestamp.h>
+
+#include <stdlib.h>
+#include <ctype.h>
+#include <inttypes.h>
+
+#include <rtems/cpuuse.h>
+
+static void CPU_usage_Per_thread_handler(
+  Thread_Control *the_thread
+)
+{
+  #ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
+    _Timestamp_Set_to_zero( &the_thread->cpu_time_used );
+  #else
+    the_thread->cpu_time_used = 0;
+  #endif
+}
+
+/*
+ * External data that is shared by cpu usage code but not declared in .h files.
+ */
+#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
+  extern Timestamp_Control CPU_usage_Uptime_at_last_reset;
+#else
+  extern uint32_t   CPU_usage_Ticks_at_last_reset;
+#endif
+
+/*
+ *  rtems_cpu_usage_reset
+ */
+void rtems_cpu_usage_reset( void )
+{
+  #ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
+    _TOD_Get_uptime( &CPU_usage_Uptime_at_last_reset );
+    _Thread_Time_of_last_context_switch = CPU_usage_Uptime_at_last_reset;
+  #else
+    CPU_usage_Ticks_at_last_reset = _Watchdog_Ticks_since_boot;
+  #endif
+
+  rtems_iterate_over_all_threads(CPU_usage_Per_thread_handler);
+}