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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 2018-02-06 22:17:01 +00:00
parent 8f926da325
commit 7f4e81c493
3 changed files with 17 additions and 13 deletions
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10
sys/kern/subr_clock.c
View File

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

6
sys/kern/subr_fattime.c
View File

@ -137,7 +137,8 @@ static const struct {
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;
unsigned t2, l, m;
@ -217,7 +218,8 @@ static const uint16_t daytab[64] = {
};
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;

14
sys/sys/clock.h
View File

@ -88,8 +88,8 @@ struct clocktime {
long nsec; /* nano seconds */
};
int clock_ct_to_ts(struct clocktime *, struct timespec *);
void clock_ts_to_ct(struct timespec *, struct clocktime *);
int clock_ct_to_ts(const struct clocktime *, struct timespec *);
void clock_ts_to_ct(const struct timespec *, struct clocktime *);
/*
* 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 */
};
int clock_bcd_to_ts(struct bcd_clocktime *, struct timespec *, bool ampm);
void clock_ts_to_bcd(struct timespec *, struct bcd_clocktime *, bool ampm);
int clock_bcd_to_ts(const struct bcd_clocktime *, struct timespec *, 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.
@ -177,8 +177,10 @@ void clock_unregister(device_t _clockdev);
/* Traditional POSIX base year */
#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 fattime2timespec(unsigned dd, unsigned dt, unsigned dh, int utc, struct timespec *tsp);
void timespec2fattime(const struct timespec *tsp, int utc, u_int16_t *ddp,
u_int16_t *dtp, u_int8_t *dhp);
void fattime2timespec(unsigned dd, unsigned dt, unsigned dh, int utc,
struct timespec *tsp);
#endif /* _KERNEL */