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