diff options
Diffstat (limited to '')
| -rw-r--r-- | cpukit/posix/src/adjtime.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/cpukit/posix/src/adjtime.c b/cpukit/posix/src/adjtime.c index 1e06dab608..e8743181aa 100644 --- a/cpukit/posix/src/adjtime.c +++ b/cpukit/posix/src/adjtime.c @@ -1,8 +1,17 @@ /* - * adjustime() function - required by NTP + * adjime() function - required by NTP * * I am unaware of the history behind the definition of this service * and don't know if its behavior is covered by any standard. --joel + */ + +/* + * COPYRIGHT (c) 1989-2007. + * On-Line Applications Research Corporation (OAR). + * + * 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. * * $Id$ */ @@ -32,16 +41,19 @@ int adjtime ( struct timeval *delta, struct timeval *olddelta ) if ( !delta ) return -1; - __adjustment = (delta->tv_sec * TOD_MICROSECONDS_PER_SECOND) + delta->tv_usec; + /* convert delta to microseconds */ + __adjustment = (delta->tv_sec * TOD_MICROSECONDS_PER_SECOND); + __adjustment += delta->tv_usec; + /* too small to account for */ if ( __adjustment < _TOD_Microseconds_per_tick ) return 0; - clock_gettime( CLOCK_REALTIME, &ts ); + /* Grab the current TOD */ + _TOD_Get( &ts ); - ts.tv_sec += (__adjustment / TOD_MICROSECONDS_PER_SECOND); - ts.tv_nsec += (__adjustment % TOD_MICROSECONDS_PER_SECOND) * - TOD_NANOSECONDS_PER_MICROSECOND; + ts.tv_sec += delta->tv_sec; + ts.tv_nsec += delta->tv_usec * TOD_NANOSECONDS_PER_MICROSECOND; /* if adjustment is too much positive */ while ( ts.tv_nsec >= TOD_NANOSECONDS_PER_SECOND ) { @@ -55,6 +67,6 @@ int adjtime ( struct timeval *delta, struct timeval *olddelta ) ts.tv_sec--; } - clock_settime( CLOCK_REALTIME, &ts ); + _TOD_Set( &ts ); return 0; } |