diff options
Diffstat (limited to 'cpukit/include/rtems/score/todimpl.h')
| -rw-r--r-- | cpukit/include/rtems/score/todimpl.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/cpukit/include/rtems/score/todimpl.h b/cpukit/include/rtems/score/todimpl.h index 9805ec0dfd..316a56ec74 100644 --- a/cpukit/include/rtems/score/todimpl.h +++ b/cpukit/include/rtems/score/todimpl.h @@ -124,6 +124,22 @@ extern "C" { #define TOD_BASE_YEAR 1988 /** + * @brief Latest year to which a time of day can be initialized. + * + * The following constant defines the latest year to which an + * RTEMS time of day can be set using rtems_clock_set(). + * + * 32 bits can accept as latest point in time 2106-Feb-7 6:28:15 + * but to simplify the implementation, is was decided to only + * check that the year is not greater than the year of this constant. + * + * The internal realtime clock can run centuries longer but in + * contrast to the POSIX API, the RTEMS Classic API does not + * support this for efficiency reasons. + */ +#define TOD_LATEST_YEAR 2105 + +/** * @addtogroup RTEMSScoreTOD * * This handler encapsulates functionality used to manage time of day. |