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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [posix/] [src/] [clockgettime.c] - Rev 532
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/* * $Id: clockgettime.c,v 1.2 2001-09-27 11:59:17 chris Exp $ */ #include <assert.h> #include <time.h> #include <errno.h> #include <rtems/system.h> #include <rtems/score/isr.h> #include <rtems/score/thread.h> #include <rtems/score/tod.h> #include <rtems/posix/seterr.h> #include <rtems/posix/time.h> /*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; }
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