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/*
htop - generic/gettime.c
(C) 2021 htop dev team
Released under the GNU GPLv2+, see the COPYING file
in the source distribution for its full text.
*/
#include "config.h" // IWYU pragma: keep
#include "generic/gettime.h"
#include <string.h>
#include <time.h>
void Generic_gettime_realtime(struct timeval* tvp, uint64_t* msec) {
#if defined(HAVE_CLOCK_GETTIME)
struct timespec ts;
if (clock_gettime(CLOCK_REALTIME, &ts) == 0) {
tvp->tv_sec = ts.tv_sec;
tvp->tv_usec = ts.tv_nsec / 1000;
*msec = ((uint64_t)ts.tv_sec * 1000) + ((uint64_t)ts.tv_nsec / 1000000);
} else {
memset(tvp, 0, sizeof(struct timeval));
*msec = 0;
}
#else /* lower resolution gettimeofday(2) is always available */
struct timeval tv;
if (gettimeofday(&tv, NULL) == 0) {
*tvp = tv; /* struct copy */
*msec = ((uint64_t)tv.tv_sec * 1000) + ((uint64_t)tv.tv_usec / 1000);
} else {
memset(tvp, 0, sizeof(struct timeval));
*msec = 0;
}
#endif
}
void Generic_gettime_monotonic(uint64_t* msec) {
#if defined(HAVE_CLOCK_GETTIME)
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0)
*msec = ((uint64_t)ts.tv_sec * 1000) + ((uint64_t)ts.tv_nsec / 1000000);
else
*msec = 0;
#else /* lower resolution gettimeofday() should be always available */
struct timeval tv;
if (gettimeofday(&tv, NULL) == 0)
*msec = ((uint64_t)tv.tv_sec * 1000) + ((uint64_t)tv.tv_usec / 1000);
else
*msec = 0;
#endif
}
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