diff options
author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-11-02 18:35:52 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-11-02 18:35:52 +0000 |
commit | 9f95a19a57f0f85212c320327636e93d70bbecc8 (patch) | |
tree | d62e1fc518777ce07e83994183d0d1b82a7f8a02 /cpukit/posix/src/time.c | |
parent | Split condition variables into multiple files. (diff) | |
download | rtems-9f95a19a57f0f85212c320327636e93d70bbecc8.tar.bz2 |
Split time.c into multiple files.
Diffstat (limited to 'cpukit/posix/src/time.c')
-rw-r--r-- | cpukit/posix/src/time.c | 349 |
1 files changed, 0 insertions, 349 deletions
diff --git a/cpukit/posix/src/time.c b/cpukit/posix/src/time.c index b4367fac4c..1eb96d5264 100644 --- a/cpukit/posix/src/time.c +++ b/cpukit/posix/src/time.c @@ -16,79 +16,6 @@ /*PAGE * - * _POSIX_Timespec_subtract - */ - -void _POSIX_Timespec_subtract( - const struct timespec *the_start, - const struct timespec *end, - struct timespec *result -) -{ - struct timespec start_struct = *the_start; - struct timespec *start = &start_struct; - unsigned int nsecs_per_sec = TOD_NANOSECONDS_PER_SECOND; - - if (end->tv_nsec < start->tv_nsec) { - int seconds = (start->tv_nsec - end->tv_nsec) / nsecs_per_sec + 1; - start->tv_nsec -= nsecs_per_sec * seconds; - start->tv_sec += seconds; - } - - if (end->tv_nsec - start->tv_nsec > nsecs_per_sec) { - int seconds = (start->tv_nsec - end->tv_nsec) / nsecs_per_sec; - start->tv_nsec += nsecs_per_sec * seconds; - start->tv_sec -= seconds; - } - - result->tv_sec = end->tv_sec - start->tv_sec; - result->tv_nsec = end->tv_nsec - start->tv_nsec; -} - -/*PAGE - * - * _POSIX_Timespec_to_interval - */ - -Watchdog_Interval _POSIX_Timespec_to_interval( - const struct timespec *time -) -{ - Watchdog_Interval ticks; - - ticks = (time->tv_sec * TOD_MICROSECONDS_PER_SECOND) / - _TOD_Microseconds_per_tick; - - ticks += (time->tv_nsec / TOD_NANOSECONDS_PER_MICROSECOND) / - _TOD_Microseconds_per_tick; - - if (ticks) - return ticks; - - return 1; -} - -/*PAGE - * - * _POSIX_Interval_to_timespec - */ - -void _POSIX_Interval_to_timespec( - Watchdog_Interval ticks, - struct timespec *time -) -{ - unsigned32 usecs; - - usecs = ticks * _TOD_Microseconds_per_tick; - - time->tv_sec = usecs / TOD_MICROSECONDS_PER_SECOND; - time->tv_nsec = (usecs % TOD_MICROSECONDS_PER_SECOND) * - TOD_NANOSECONDS_PER_MICROSECOND; -} - -/*PAGE - * * 4.5.1 Get System Time, P1003.1b-1993, p. 91 */ @@ -119,279 +46,3 @@ time_t time( return seconds_since_epoch; } #endif - -/*PAGE - * - * 14.2.1 Clocks, P1003.1b-1993, p. 263 - */ - -int clock_settime( - clockid_t clock_id, - const struct timespec *tp -) -{ - struct tm split_time; - TOD_Control tod; - Watchdog_Interval seconds; - - assert( tp ); - - switch ( clock_id ) { - - case CLOCK_REALTIME: - (void) gmtime_r( &tp->tv_sec, &split_time ); - - /* - * Convert the tm structure format to that used by the TOD Handler - * - * NOTE: TOD Handler does not honor leap seconds. - */ - - tod.year = split_time.tm_year + 1900; /* RHS is years since 1900 */ - tod.month = split_time.tm_mon + 1; /* RHS uses 0-11 */ - tod.day = split_time.tm_mday; - tod.hour = split_time.tm_hour; - tod.minute = split_time.tm_min; - tod.second = split_time.tm_sec; /* RHS allows 0-61 for leap seconds */ - - tod.ticks = (tp->tv_nsec / TOD_NANOSECONDS_PER_MICROSECOND) / - _TOD_Microseconds_per_tick; - - if ( !_TOD_Validate( &tod ) ) - set_errno_and_return_minus_one( EINVAL ); - - /* - * We can't use the tp->tv_sec field because it is based on - * a different EPOCH. - */ - - seconds = _TOD_To_seconds( &tod ); - _Thread_Disable_dispatch(); - _TOD_Set( &tod, seconds ); - _Thread_Enable_dispatch(); - break; - -#ifdef _POSIX_CPUTIME - case CLOCK_PROCESS_CPUTIME: - return POSIX_NOT_IMPLEMENTED(); - break; -#endif - -#ifdef _POSIX_THREAD_CPUTIME - case CLOCK_THREAD_CPUTIME: - return POSIX_NOT_IMPLEMENTED(); - break; -#endif - default: - set_errno_and_return_minus_one( EINVAL ); - - } - return 0; -} - -/*PAGE - * - * 14.2.1 Clocks, P1003.1b-1993, p. 263 - */ - -int clock_gettime( - clockid_t clock_id, - struct timespec *tp -) -{ - ISR_Level level; - time_t seconds; - long ticks; - - if ( !tp ) - set_errno_and_return_minus_one( EINVAL ); - - switch ( clock_id ) { - - case CLOCK_REALTIME: - - _ISR_Disable( level ); - seconds = _TOD_Seconds_since_epoch; - ticks = _TOD_Current.ticks; - _ISR_Enable( level ); - - tp->tv_sec = seconds + POSIX_TIME_SECONDS_1970_THROUGH_1988; - tp->tv_nsec = ticks * _TOD_Microseconds_per_tick * - TOD_NANOSECONDS_PER_MICROSECOND; - break; - -#ifdef _POSIX_CPUTIME - case CLOCK_PROCESS_CPUTIME: - /* don't base this on _Watchdog_Ticks_since_boot--duration is too short*/ - return POSIX_NOT_IMPLEMENTED(); - break; -#endif - -#ifdef _POSIX_THREAD_CPUTIME - case CLOCK_THREAD_CPUTIME: - return POSIX_NOT_IMPLEMENTED(); - break; -#endif - default: - set_errno_and_return_minus_one( EINVAL ); - - } - return 0; -} - -/*PAGE - * - * 14.2.1 Clocks, P1003.1b-1993, p. 263 - */ - -int clock_getres( - clockid_t clock_id, - struct timespec *res -) -{ - if ( !res ) - set_errno_and_return_minus_one( EINVAL ); - - switch ( clock_id ) { - - /* - * All time in rtems is based on the same clock tick. - */ - - case CLOCK_REALTIME: - case CLOCK_PROCESS_CPUTIME: - case CLOCK_THREAD_CPUTIME: - if ( res ) - _POSIX_Interval_to_timespec( _TOD_Microseconds_per_tick, res ); - break; - - default: - set_errno_and_return_minus_one( EINVAL ); - - } - return 0; -} - -/*PAGE - * - * 14.2.5 High Resolution Sleep, P1003.1b-1993, p. 269 - */ - -int nanosleep( - const struct timespec *rqtp, - struct timespec *rmtp -) -{ - Watchdog_Interval ticks; - struct timespec *the_rqtp; - - if ( !rqtp ) - set_errno_and_return_minus_one( EINVAL ); - - the_rqtp = (struct timespec *)rqtp; - - /* - * Return EAGAIN if the delay interval is negative. - * - * NOTE: This behavior is beyond the POSIX specification. - * FSU pthreads shares this behavior. - */ - - if ( the_rqtp->tv_sec < 0 ) - the_rqtp->tv_sec = 0; - - if ( /* the_rqtp->tv_sec < 0 || */ the_rqtp->tv_nsec < 0 ) - set_errno_and_return_minus_one( EAGAIN ); - - if ( the_rqtp->tv_nsec >= TOD_NANOSECONDS_PER_SECOND ) - set_errno_and_return_minus_one( EINVAL ); - - ticks = _POSIX_Timespec_to_interval( the_rqtp ); - - /* - * This behavior is also beyond the POSIX specification but is - * consistent with the RTEMS api and yields desirable behavior. - */ - - if ( !ticks ) { - _Thread_Disable_dispatch(); - _Thread_Yield_processor(); - _Thread_Enable_dispatch(); - if ( rmtp ) { - rmtp->tv_sec = 0; - rmtp->tv_nsec = 0; - } - return 0; - } - - _Thread_Disable_dispatch(); - _Thread_Set_state( - _Thread_Executing, - STATES_DELAYING | STATES_INTERRUPTIBLE_BY_SIGNAL - ); - _Watchdog_Initialize( - &_Thread_Executing->Timer, - _Thread_Delay_ended, - _Thread_Executing->Object.id, - NULL - ); - _Watchdog_Insert_ticks( &_Thread_Executing->Timer, ticks ); - _Thread_Enable_dispatch(); - - /* calculate time remaining */ - - if ( rmtp ) { - ticks -= - _Thread_Executing->Timer.stop_time - _Thread_Executing->Timer.start_time; - - _POSIX_Interval_to_timespec( ticks, rmtp ); - - /* - * If there is time remaining, then we were interrupted by a signal. - */ - - if ( ticks ) - set_errno_and_return_minus_one( EINTR ); - } - - return 0; -} - -/*PAGE - * - * 20.1.3 Accessing a Process CPU-time CLock, P1003.4b/D8, p. 55 - */ - -int clock_getcpuclockid( - pid_t pid, - clockid_t *clock_id -) -{ - return POSIX_NOT_IMPLEMENTED(); -} - -/*PAGE - * - * 20.1.5 CPU-time Clock Attribute Access, P1003.4b/D8, p. 58 - */ - -int clock_setenable_attr( - clockid_t clock_id, - int attr -) -{ - return POSIX_NOT_IMPLEMENTED(); -} - -/*PAGE - * - * 20.1.5 CPU-time Clock Attribute Access, P1003.4b/D8, p. 58 - */ - -int clock_getenable_attr( - clockid_t clock_id, - int *attr -) -{ - return POSIX_NOT_IMPLEMENTED(); -} |