diff options
| author | Joel Sherrill <joel@rtems.org> | 2019-11-12 09:33:41 -0600 |
|---|---|---|
| committer | Joel Sherrill <joel@rtems.org> | 2019-12-11 15:22:33 -0600 |
| commit | 08bd7d36cee1b041d54ee9dbace86a1b810938af (patch) | |
| tree | 18de7bd20167d7430c82810d375534c56dfedb91 /cpukit/include/rtems/score/timecounter.h | |
| parent | pipe: Use condition variables (diff) | |
| download | rtems-08bd7d36cee1b041d54ee9dbace86a1b810938af.tar.bz2 | |
Add TOD Hooks to allow BSP to take action when TOD is set
Two use cases were envisioned for this.
1) a BSP or application which desires to update a real-time clock
when the RTEMS TOD is set.
2) a paravirtualized BSP can use this to propagate setting the time
in an RTEMS application to the hosting environment. This enables
the entire set of applications in the virtualized environments
to have a single consistent TOD.
Diffstat (limited to 'cpukit/include/rtems/score/timecounter.h')
| -rw-r--r-- | cpukit/include/rtems/score/timecounter.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/cpukit/include/rtems/score/timecounter.h b/cpukit/include/rtems/score/timecounter.h index 78f5dfa53b..b71ccd3948 100644 --- a/cpukit/include/rtems/score/timecounter.h +++ b/cpukit/include/rtems/score/timecounter.h @@ -202,6 +202,16 @@ ISR_LOCK_DECLARE( extern, _Timecounter_Lock ) _ISR_lock_ISR_disable_and_acquire( &_Timecounter_Lock, lock_context ) /** + * @brief Releases the timecounter lock. + * + * @param lock_context The lock context. + * + * See _Timecounter_Tick_simple(). + */ +#define _Timecounter_Release(lock_context) \ + _ISR_lock_Release_and_ISR_enable(&_Timecounter_Lock, lock_context) + +/** * @brief Performs a simple timecounter tick. * * This is a special purpose tick function for simple timecounter to support |