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-rw-r--r--cpukit/score/src/coretodgetuptime.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/cpukit/score/src/coretodgetuptime.c b/cpukit/score/src/coretodgetuptime.c
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index 0000000000..c5d940b0c0
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+++ b/cpukit/score/src/coretodgetuptime.c
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+/*
+ * Time of Day (TOD) Handler - get uptime
+ */
+
+/* COPYRIGHT (c) 1989-2008.
+ * 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.
+ *
+ * $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/system.h>
+#include <rtems/score/isr.h>
+#include <rtems/score/timestamp.h>
+#include <rtems/score/tod.h>
+#include <rtems/score/watchdog.h>
+
+/*
+ * _TOD_Get_uptime
+ *
+ * This routine is used to obtain the system uptime
+ *
+ * Input parameters:
+ * time - pointer to the timestamp structure
+ *
+ * Output parameters: NONE
+ */
+
+void _TOD_Get_uptime(
+ Timestamp_Control *uptime
+)
+{
+ ISR_Level level;
+ Timestamp_Control offset;
+ Timestamp_Control up;
+ long nanoseconds;
+
+ /* assume time checked for NULL by caller */
+
+ /* _TOD_Uptime is in native timestamp format */
+ _ISR_Disable( level );
+ up = _TOD_Uptime;
+ nanoseconds = (*_Watchdog_Nanoseconds_since_tick_handler)();
+ _ISR_Enable( level );
+
+ _Timestamp_Set( &offset, 0, nanoseconds );
+ _Timestamp_Add_to( &up, &offset );
+ *uptime = up;
+}