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git/trace2/tr2_tbuf.c
Jeff Hostetler 08881b9a4c trace2: make SIDs more unique
Update SID component construction to use the current UTC datetime
and a portion of the SHA1 of the hostname.

Use an simplified date/time format to make it easier to use the
SID component as a logfile filename.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-16 13:37:07 +09:00

48 lines
1.0 KiB
C

#include "cache.h"
#include "tr2_tbuf.h"
void tr2_tbuf_local_time(struct tr2_tbuf *tb)
{
struct timeval tv;
struct tm tm;
time_t secs;
gettimeofday(&tv, NULL);
secs = tv.tv_sec;
localtime_r(&secs, &tm);
xsnprintf(tb->buf, sizeof(tb->buf), "%02d:%02d:%02d.%06ld", tm.tm_hour,
tm.tm_min, tm.tm_sec, (long)tv.tv_usec);
}
void tr2_tbuf_utc_datetime_extended(struct tr2_tbuf *tb)
{
struct timeval tv;
struct tm tm;
time_t secs;
gettimeofday(&tv, NULL);
secs = tv.tv_sec;
gmtime_r(&secs, &tm);
xsnprintf(tb->buf, sizeof(tb->buf),
"%4d-%02d-%02dT%02d:%02d:%02d.%06ldZ", tm.tm_year + 1900,
tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec,
(long)tv.tv_usec);
}
void tr2_tbuf_utc_datetime(struct tr2_tbuf *tb)
{
struct timeval tv;
struct tm tm;
time_t secs;
gettimeofday(&tv, NULL);
secs = tv.tv_sec;
gmtime_r(&secs, &tm);
xsnprintf(tb->buf, sizeof(tb->buf), "%4d%02d%02dT%02d%02d%02d.%06ldZ",
tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour,
tm.tm_min, tm.tm_sec, (long)tv.tv_usec);
}