bcb4e51a409d94ae670de96afb8483a4f7855294Stephan Bosch/* Copyright (c) 2008-2018 Dovecot authors, see the included COPYING file */
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen#include "lib.h"
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen#include "time-util.h"
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen#include <time.h>
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen#define STRFTIME_MAX_BUFSIZE (1024*64)
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainenint timeval_cmp(const struct timeval *tv1, const struct timeval *tv2)
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen{
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen if (tv1->tv_sec < tv2->tv_sec)
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen return -1;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen if (tv1->tv_sec > tv2->tv_sec)
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen return 1;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen if (tv1->tv_usec < tv2->tv_usec)
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen return -1;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen if (tv1->tv_usec > tv2->tv_usec)
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen return 1;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen return 0;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen}
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen
e28b88ee83b47dc2257140600f491482704c7b79Stephan Boschint timeval_cmp_margin(const struct timeval *tv1, const struct timeval *tv2,
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch unsigned int usec_margin)
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch{
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch unsigned long long usecs_diff;
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch int sec_margin, ret;
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch if (tv1->tv_sec < tv2->tv_sec) {
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch sec_margin = ((int)usec_margin / 1000000) + 1;
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch if ((tv2->tv_sec - tv1->tv_sec) > sec_margin)
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch return -1;
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch usecs_diff = (tv2->tv_sec - tv1->tv_sec) * 1000000ULL +
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch (tv2->tv_usec - tv1->tv_usec);
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch ret = -1;
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch } else if (tv1->tv_sec > tv2->tv_sec) {
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch sec_margin = ((int)usec_margin / 1000000) + 1;
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch if ((tv1->tv_sec - tv2->tv_sec) > sec_margin)
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch return 1;
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch usecs_diff = (tv1->tv_sec - tv2->tv_sec) * 1000000ULL +
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch (tv1->tv_usec - tv2->tv_usec);
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch ret = 1;
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch } else if (tv1->tv_usec < tv2->tv_usec) {
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch usecs_diff = tv2->tv_usec - tv1->tv_usec;
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch ret = -1;
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch } else {
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch usecs_diff = tv1->tv_usec - tv2->tv_usec;
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch ret = 1;
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch }
f0f2cc0a290310c398ca727b199e33ea9994b7bcStephan Bosch return usecs_diff > usec_margin ? ret : 0;
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch}
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainenint timeval_diff_msecs(const struct timeval *tv1, const struct timeval *tv2)
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen{
2f2244332687187931e9541e5ff312aa6c5aa705Timo Sirainen return timeval_diff_usecs(tv1, tv2) / 1000;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen}
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainenlong long timeval_diff_usecs(const struct timeval *tv1,
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen const struct timeval *tv2)
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen{
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen time_t secs;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen int usecs;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen secs = tv1->tv_sec - tv2->tv_sec;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen usecs = tv1->tv_usec - tv2->tv_usec;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen if (usecs < 0) {
2f2244332687187931e9541e5ff312aa6c5aa705Timo Sirainen secs--;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen usecs += 1000000;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen }
1384fac439fea3026b16a9d8d24954200e413bccTimo Sirainen return ((long long)secs * 1000000LL) + usecs;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen}
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainentime_t time_to_local_day_start(time_t t)
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen{
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen const struct tm *day_tm;
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen struct tm tm;
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen time_t new_start_time;
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen day_tm = localtime(&t);
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen i_zero(&tm);
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen tm.tm_year = day_tm->tm_year;
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen tm.tm_mon = day_tm->tm_mon;
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen tm.tm_mday = day_tm->tm_mday;
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen tm.tm_isdst = -1;
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen new_start_time = mktime(&tm);
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen i_assert(new_start_time != (time_t)-1);
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen return new_start_time;
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen}
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvistatic const char *strftime_real(const char *fmt, const struct tm *tm)
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen{
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen size_t bufsize = strlen(fmt) + 32;
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen char *buf = t_buffer_get(bufsize);
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen size_t ret;
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen while ((ret = strftime(buf, bufsize, fmt, tm)) == 0) {
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen bufsize *= 2;
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen i_assert(bufsize <= STRFTIME_MAX_BUFSIZE);
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen buf = t_buffer_get(bufsize);
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen }
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen t_buffer_alloc(ret + 1);
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen return buf;
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen}
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärviconst char *t_strftime(const char *fmt, const struct tm *tm)
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi{
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi return strftime_real(fmt, tm);
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi}
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärviconst char *t_strflocaltime(const char *fmt, time_t t)
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi{
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi return strftime_real(fmt, localtime(&t));
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi}
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärviconst char *t_strfgmtime(const char *fmt, time_t t)
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi{
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi return strftime_real(fmt, gmtime(&t));
9983cbb4cef92d68ffde87dcc91913cc2fed3da5Martti Rannanjärvi}