rtems: Add rtems_clock_get_uptime_seconds()

3 files changed, 42 insertions, 0 deletions

diff --git a/cpukit/rtems/Makefile.am b/cpukit/rtems/Makefile.am
index 10a5cfaf5d..6295990a74 100644
--- a/cpukit/rtems/Makefile.am
+++ b/cpukit/rtems/Makefile.am
@@ -155,6 +155,7 @@ librtems_a_SOURCES += src/clockgettod.c
 librtems_a_SOURCES += src/clockgettodtimeval.c
 librtems_a_SOURCES += src/clockgetuptime.c
 librtems_a_SOURCES += src/clockgetuptimetimeval.c
+librtems_a_SOURCES += src/clockgetuptimeseconds.c
 librtems_a_SOURCES += src/clockset.c
 librtems_a_SOURCES += src/clocksetnsecshandler.c
 librtems_a_SOURCES += src/clocktick.c
diff --git a/cpukit/rtems/include/rtems/rtems/clock.h b/cpukit/rtems/include/rtems/rtems/clock.h
index 9805f58e10..c7b9a4ab93 100644
--- a/cpukit/rtems/include/rtems/rtems/clock.h
+++ b/cpukit/rtems/include/rtems/rtems/clock.h
@@ -235,6 +235,13 @@ rtems_status_code rtems_clock_get_uptime(
 void rtems_clock_get_uptime_timeval( struct timeval *uptime );
 
 /**
+ *  @brief Returns the system uptime in seconds.
+ *
+ *  @return The system uptime in seconds.
+ */
+time_t rtems_clock_get_uptime_seconds( void );
+
+/**
  *  @brief _TOD_Validate
  *
  *  This support function returns true if @a the_tod contains
diff --git a/cpukit/rtems/src/clockgetuptimeseconds.c b/cpukit/rtems/src/clockgetuptimeseconds.c
new file mode 100644
index 0000000000..dc98d1d9e9
--- /dev/null
+++ b/cpukit/rtems/src/clockgetuptimeseconds.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2012 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  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.com/license/LICENSE.
+ */
+
+#if HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <rtems/rtems/clock.h>
+
+time_t rtems_clock_get_uptime_seconds( void )
+{
+  Timestamp_Control snapshot_as_timestamp;
+  struct timespec   snapshot_as_timespec;
+  ISR_Level         level;
+
+  _ISR_Disable( level );
+  snapshot_as_timestamp = _TOD.uptime;
+  _ISR_Enable( level );
+
+  _Timestamp_To_timespec( &snapshot_as_timestamp, &snapshot_as_timespec );
+
+  return snapshot_as_timespec.tv_sec;
+}