Nils O. Selåsdal
83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
#include "ucore/clock.h"
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#include "ucore/utils.h"
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#ifdef __GNUC__
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#define UNUSED __attribute__((__unused__))
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#else
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#define UNUSED
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#endif
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static void uc_timeofday_now(const struct UCoreClock *uclock UNUSED, struct timeval *tv)
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{
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gettimeofday(tv, NULL);
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}
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static void uc_time_now(const struct UCoreClock *uclock UNUSED, struct timeval *tv)
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{
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tv->tv_sec = time(NULL);
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tv->tv_usec = 0;
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}
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struct UCoreClock uc_timeofday_clock = {
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.name = "gettimeofday",
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.now = uc_timeofday_now,
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};
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struct UCoreClock uc_time_clock = {
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.name = "time",
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.now = uc_time_now,
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};
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static void uc_cached_clock_now(const struct UCoreClock *uclock,
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struct timeval *tv)
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{
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const struct UCoreCachedClock *cached_clock;
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cached_clock = UC_CONST_CONTAINER_OF(uclock, const struct UCoreCachedClock, clock),
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*tv = cached_clock->cache;
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}
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void uc_cached_clock_init(struct UCoreCachedClock *uclock, struct UCoreClock *real_clock)
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{
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uclock->clock.name = "cached clock";
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uclock->clock.now = uc_cached_clock_now;
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uclock->real_clock = real_clock;
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uc_cached_clock_update(uclock);
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}
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void uc_cached_clock_update(struct UCoreCachedClock *uclock)
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{
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uclock->real_clock->now(&uclock->clock, &uclock->cache);
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}
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static void uc_settable_clock_now(const struct UCoreClock *uclock, struct timeval *tv)
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{
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const struct UCoreSettableClock *cached_clock;
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cached_clock = UC_CONST_CONTAINER_OF(uclock, const struct UCoreSettableClock, clock),
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*tv = cached_clock->now;
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}
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void uc_settable_clock_init(struct UCoreSettableClock *uclock)
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{
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uclock->clock.name = "settable clock";
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uclock->clock.now = uc_settable_clock_now;
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uclock->now.tv_sec = 0;
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uclock->now.tv_usec = 0;
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}
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void uc_settable_clock_set_tv(struct UCoreSettableClock *uclock, const struct timeval *tv)
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{
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uclock->now = *tv;
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}
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void uc_settable_clock_set(struct UCoreSettableClock *uclock, time_t secs, suseconds_t usecs)
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{
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uclock->now.tv_sec = secs;
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uclock->now.tv_usec = usecs;
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}
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