Mercurial > dovecot > core-2.2
view src/lib/time-util.h @ 23007:36e01285b5b8
lib: buffer - Improve header comment for buffer_insert() and buffer_delete().
author | Stephan Bosch <stephan.bosch@dovecot.fi> |
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date | Mon, 18 Mar 2019 00:52:37 +0100 |
parents | 3ffd4442b22c |
children |
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#ifndef TIME_UTIL_H #define TIME_UTIL_H #include <sys/time.h> /* for struct timeval */ /* Returns -1 if tv1<tv2, 1 if tv1>tv2, 0 if they're equal. */ int timeval_cmp(const struct timeval *tv1, const struct timeval *tv2); /* Same as timeval_cmp, but tv->usecs must differ by at least usec_margin */ int timeval_cmp_margin(const struct timeval *tv1, const struct timeval *tv2, unsigned int usec_margin); /* Returns tv1-tv2 in milliseconds. */ int timeval_diff_msecs(const struct timeval *tv1, const struct timeval *tv2); /* Returns tv1-tv2 in microseconds. */ long long timeval_diff_usecs(const struct timeval *tv1, const struct timeval *tv2); static inline void timeval_add_msecs(struct timeval *tv, unsigned int msecs) { tv->tv_sec += msecs / 1000; tv->tv_usec += (msecs % 1000) * 1000; if (tv->tv_usec >= 1000000) { tv->tv_sec++; tv->tv_usec -= 1000000; } } static inline void timeval_sub_msecs(struct timeval *tv, unsigned int msecs) { tv->tv_sec -= msecs / 1000; tv->tv_usec -= (msecs % 1000) * 1000; if (tv->tv_usec < 0) { tv->tv_sec--; tv->tv_usec += 1000000; } } /* Convert t to local time and return timestamp on that day at 00:00:00. */ time_t time_to_local_day_start(time_t t); /* Wrappers to strftime() */ const char *t_strftime(const char *fmt, const struct tm *tm) ATTR_STRFTIME(1); const char *t_strflocaltime(const char *fmt, time_t t) ATTR_STRFTIME(1); const char *t_strfgmtime(const char *fmt, time_t t) ATTR_STRFTIME(1); #endif