This also adds the sys_settime() kernel call which allows for the adjusting of the clock named realtime in the kernel. The existing sys_stime() function is still needed for a separate job (setting the boottime). The boottime is set in the readclock driver. The sys_settime() interface is meant to be flexible and will support both clock_settime() and adjtime() when adjtime() is implemented later. settimeofday() was adjusted to use the clock_settime() interface. One side note discovered during testing: uptime(1) (part of the last(1)), uses wtmp to determine boottime (not Minix's times(2)). This leads `uptime` to report odd results when you set the time to a time prior to boottime. This isn't a new bug introduced by my changes. It's been there for a while.
21 lines
420 B
C
21 lines
420 B
C
#include <sys/cdefs.h>
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#include <lib.h>
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#include "namespace.h"
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#include <sys/time.h>
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#include <time.h>
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int settimeofday(const struct timeval *tp, const void *tzp)
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{
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struct timespec ts;
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ts.tv_sec = tp->tv_sec;
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ts.tv_nsec = tp->tv_usec * 1000;
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/* Ignore time zones */
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return clock_settime(CLOCK_REALTIME, &ts);
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}
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#if defined(__minix) && defined(__weak_alias)
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__weak_alias(settimeofday, __settimeofday50)
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#endif
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