rtems: Add rtems_clock_get_uptime_seconds()

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

cpukit/rtems/include/rtems/rtems/clock.h

@@ -234,6 +234,13 @@ 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
  *

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;
+}

doc/user/clock.t

@@ -23,6 +23,7 @@ the clock manager are:
 @item @code{@value{DIRPREFIX}clock_get_ticks_since_boot} - Get ticks since boot
 @item @code{@value{DIRPREFIX}clock_get_uptime} - Get time since boot
 @item @code{@value{DIRPREFIX}clock_get_uptime_timeval} - Get time since boot in timeval format
+@item @code{@value{DIRPREFIX}clock_get_uptime_seconds} - Get seconds since boot
 @item @code{@value{DIRPREFIX}clock_set_nanoseconds_extension} - Install the nanoseconds since last tick handler
 @item @code{@value{DIRPREFIX}clock_tick} - Announce a clock tick
 @end itemize
@@ -701,6 +702,36 @@ call.
 
 This directive may be called from an ISR.
 
+@c
+@c
+@c
+@page
+@subsection CLOCK_GET_UPTIME_SECONDS - Get the seconds since boot
+
+@cindex clock get uptime
+@cindex uptime
+
+@subheading CALLING SEQUENCE:
+
+@ifset is-C
+@findex rtems_clock_get_uptime_seconds
+@example
+time_t rtems_clock_get_uptime_seconds(void);
+@end example
+@end ifset
+
+@subheading DIRECTIVE STATUS CODES:
+
+The system uptime in seconds.
+
+@subheading DESCRIPTION:
+
+This directive returns the seconds since the system was booted.
+
+@subheading NOTES:
+
+This directive may be called from an ISR.
+
 @c
 @c
 @c

testsuites/sptests/sp09/screen02.c

@@ -86,6 +86,9 @@ void Screen2()
   puts( "TA1 - rtems_clock_get_uptime_timeval" );
   rtems_clock_get_uptime_timeval( &tv );
 
+  puts( "TA1 - rtems_clock_get_uptime_seconds" );
+  rtems_clock_get_uptime_seconds();
+
   puts( "TA1 - rtems_clock_get_tod_timeval - RTEMS_INVALID_ADDRESS" );
   status = rtems_clock_get_tod_timeval( NULL );
   fatal_directive_status(

testsuites/sptests/sp09/sp09.scn

@@ -32,6 +32,7 @@ TA1 - rtems_clock_get_seconds_since_epoch - RTEMS_INVALID_ADDRESS
 TA1 - rtems_clock_get_seconds_since_epoch - RTEMS_NOT_DEFINED
 TA1 - rtems_clock_get_uptime - RTEMS_INVALID_ADDRESS
 TA1 - rtems_clock_get_uptime_timeval
+TA1 - rtems_clock_get_uptime_seconds
 TA1 - rtems_clock_get_tod_timeval - RTEMS_INVALID_ADDRESS
 TA1 - rtems_clock_get_tod_timeval - RTEMS_NOT_DEFINED
 TA1 - rtems_clock_set_nanoseconds_extension - RTEMS_INVALID_ADDRESS