time-util.c revision c3c07d6527ad28c8546cbbf84c257d178e23c184
2454dfa32c93c20a8522c6ed42fe057baaac9f9aStephan Bosch/* Copyright (c) 2008-2011 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_diff_msecs(const struct timeval *tv1, const struct timeval *tv2)
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch{
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch return timeval_diff_usecs(tv1, tv2) / 1000;
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch}
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch
e28b88ee83b47dc2257140600f491482704c7b79Stephan Boschlong long timeval_diff_usecs(const struct timeval *tv1,
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch const struct timeval *tv2)
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch{
8bca5ef713f2916dbd60bb2b76e7cc06f4800d4dStephan Bosch time_t secs;
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch int usecs;
8bca5ef713f2916dbd60bb2b76e7cc06f4800d4dStephan Bosch
8bca5ef713f2916dbd60bb2b76e7cc06f4800d4dStephan Bosch secs = tv1->tv_sec - tv2->tv_sec;
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch usecs = tv1->tv_usec - tv2->tv_usec;
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch if (usecs < 0) {
e28b88ee83b47dc2257140600f491482704c7b79Stephan Bosch secs--;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen usecs += 1000000;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen }
2f2244332687187931e9541e5ff312aa6c5aa705Timo Sirainen return ((long long)secs * 1000000ULL) + usecs;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen}
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainenconst char *t_strflocaltime(const char *fmt, time_t t)
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen{
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen const struct tm *tm;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen size_t bufsize = strlen(fmt) + 32;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen char *buf = t_buffer_get(bufsize);
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen size_t ret;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen tm = localtime(&t);
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen while ((ret = strftime(buf, bufsize, fmt, tm)) == 0) {
2f2244332687187931e9541e5ff312aa6c5aa705Timo Sirainen bufsize *= 2;
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen i_assert(bufsize <= STRFTIME_MAX_BUFSIZE);
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen buf = t_buffer_get(bufsize);
1384fac439fea3026b16a9d8d24954200e413bccTimo Sirainen }
7ef3553585e556f35d5919589cfdc1de3329e4bbTimo Sirainen t_buffer_alloc(ret + 1);
c3c07d6527ad28c8546cbbf84c257d178e23c184Timo Sirainen return buf;
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen}
27a33f6aaa3d02d88c020315ae613e0c4910e950Timo Sirainen