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Use const pointers for input data not modified by clock utility functions.

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This commit is contained in:
Ian Lepore 2018-02-06 22:17:01 +00:00
parent d2be4a1e4f
commit ce75945d3c
3 changed files with 17 additions and 13 deletions

10
sys/kern/subr_clock.c

@ -132,7 +132,7 @@ leapyear(int year)
} }
static void static void
print_ct(struct clocktime *ct) print_ct(const struct clocktime *ct)
{ {
printf("[%04d-%02d-%02d %02d:%02d:%02d]", printf("[%04d-%02d-%02d %02d:%02d:%02d]",
ct->year, ct->mon, ct->day, ct->year, ct->mon, ct->day,
@ -140,7 +140,7 @@ print_ct(struct clocktime *ct)
} }
int int
clock_ct_to_ts(struct clocktime *ct, struct timespec *ts) clock_ct_to_ts(const struct clocktime *ct, struct timespec *ts)
{ {
int i, year, days; int i, year, days;
@ -200,7 +200,7 @@ clock_ct_to_ts(struct clocktime *ct, struct timespec *ts)
} }
int int
clock_bcd_to_ts(struct bcd_clocktime *bct, struct timespec *ts, bool ampm) clock_bcd_to_ts(const struct bcd_clocktime *bct, struct timespec *ts, bool ampm)
{ {
struct clocktime ct; struct clocktime ct;
int bcent, byear; int bcent, byear;
@ -249,7 +249,7 @@ clock_bcd_to_ts(struct bcd_clocktime *bct, struct timespec *ts, bool ampm)
} }
void void
clock_ts_to_ct(struct timespec *ts, struct clocktime *ct) clock_ts_to_ct(const struct timespec *ts, struct clocktime *ct)
{ {
time_t i, year, days; time_t i, year, days;
time_t rsec; /* remainder seconds */ time_t rsec; /* remainder seconds */
@ -310,7 +310,7 @@ clock_ts_to_ct(struct timespec *ts, struct clocktime *ct)
} }
void void
clock_ts_to_bcd(struct timespec *ts, struct bcd_clocktime *bct, bool ampm) clock_ts_to_bcd(const struct timespec *ts, struct bcd_clocktime *bct, bool ampm)
{ {
struct clocktime ct; struct clocktime ct;

6
sys/kern/subr_fattime.c

@ -137,7 +137,8 @@ static const struct {
void void
timespec2fattime(struct timespec *tsp, int utc, uint16_t *ddp, uint16_t *dtp, uint8_t *dhp) timespec2fattime(const struct timespec *tsp, int utc, uint16_t *ddp,
uint16_t *dtp, uint8_t *dhp)
{ {
time_t t1; time_t t1;
unsigned t2, l, m; unsigned t2, l, m;
@ -217,7 +218,8 @@ static const uint16_t daytab[64] = {
}; };
void void
fattime2timespec(unsigned dd, unsigned dt, unsigned dh, int utc, struct timespec *tsp) fattime2timespec(unsigned dd, unsigned dt, unsigned dh, int utc,
struct timespec *tsp)
{ {
unsigned day; unsigned day;

14
sys/sys/clock.h

@ -88,8 +88,8 @@ struct clocktime {
long nsec; /* nano seconds */ long nsec; /* nano seconds */
}; };
int clock_ct_to_ts(struct clocktime *, struct timespec *); int clock_ct_to_ts(const struct clocktime *, struct timespec *);
void clock_ts_to_ct(struct timespec *, struct clocktime *); void clock_ts_to_ct(const struct timespec *, struct clocktime *);
/* /*
* Structure to hold the values typically reported by time-of-day clocks, * Structure to hold the values typically reported by time-of-day clocks,
@ -125,8 +125,8 @@ struct bcd_clocktime {
bool ispm; /* true if hour represents pm time */ bool ispm; /* true if hour represents pm time */
}; };
int clock_bcd_to_ts(struct bcd_clocktime *, struct timespec *, bool ampm); int clock_bcd_to_ts(const struct bcd_clocktime *, struct timespec *, bool ampm);
void clock_ts_to_bcd(struct timespec *, struct bcd_clocktime *, bool ampm); void clock_ts_to_bcd(const struct timespec *, struct bcd_clocktime *, bool ampm);
/* /*
* Time-of-day clock functions and flags. These functions might sleep. * Time-of-day clock functions and flags. These functions might sleep.
@ -177,8 +177,10 @@ void clock_unregister(device_t _clockdev);
/* Traditional POSIX base year */ /* Traditional POSIX base year */
#define POSIX_BASE_YEAR 1970 #define POSIX_BASE_YEAR 1970
void timespec2fattime(struct timespec *tsp, int utc, u_int16_t *ddp, u_int16_t *dtp, u_int8_t *dhp); void timespec2fattime(const struct timespec *tsp, int utc, u_int16_t *ddp,
void fattime2timespec(unsigned dd, unsigned dt, unsigned dh, int utc, struct timespec *tsp); u_int16_t *dtp, u_int8_t *dhp);
void fattime2timespec(unsigned dd, unsigned dt, unsigned dh, int utc,
struct timespec *tsp);
#endif /* _KERNEL */ #endif /* _KERNEL */