cpukit/rtems: Add rtems_clock_get_uptime_nanoseconds to the RTEMS API.

Add Timestamp support in the score to return a timestamp in nanoseconds.
Add a test.
Update the RTEMS API documentation.

1 files changed, 29 insertions, 0 deletions

diff --git a/cpukit/score/src/timespecgetasnanoseconds.c b/cpukit/score/src/timespecgetasnanoseconds.c
new file mode 100644
index 0000000000..4ef1af4f62
--- /dev/null
+++ b/cpukit/score/src/timespecgetasnanoseconds.c
@@ -0,0 +1,29 @@
+/**
+ *  @file
+ *
+ *  @brief Get As Nanoseconds
+ *  @ingroup Timespec
+ */
+
+/*
+ *  COPYRIGHT (c) 2013 Chris Johns <chrisj@rtems.org>
+ *
+ *  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.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/score/timespec.h>
+#include <rtems/score/todimpl.h>
+
+uint64_t _Timespec_Get_As_nanoseconds(
+  const struct timespec *time,
+  const uint32_t nanoseconds
+)
+{
+  return ( ((uint64_t) time->tv_sec) * 1000000000ULL ) + time->tv_nsec + nanoseconds;
+}