From c5e4027e056c3027f682f0d69fe9fd75083b65f8 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 19 Apr 2017 16:12:39 -0300 Subject: perf tools: Move timestamp routines from util.h to time-utils.h We already have a header for time utilities, so use it. Link: http://lkml.kernel.org/n/tip-sijzpbvutlg0c3oxn49hy9ca@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/time-utils.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'tools/perf/util/time-utils.c') diff --git a/tools/perf/util/time-utils.c b/tools/perf/util/time-utils.c index d1b21c72206d..5b5d0214debd 100644 --- a/tools/perf/util/time-utils.c +++ b/tools/perf/util/time-utils.c @@ -117,3 +117,28 @@ bool perf_time__skip_sample(struct perf_time_interval *ptime, u64 timestamp) return false; } + +int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz) +{ + u64 sec = timestamp / NSEC_PER_SEC; + u64 usec = (timestamp % NSEC_PER_SEC) / NSEC_PER_USEC; + + return scnprintf(buf, sz, "%"PRIu64".%06"PRIu64, sec, usec); +} + +int fetch_current_timestamp(char *buf, size_t sz) +{ + struct timeval tv; + struct tm tm; + char dt[32]; + + if (gettimeofday(&tv, NULL) || !localtime_r(&tv.tv_sec, &tm)) + return -1; + + if (!strftime(dt, sizeof(dt), "%Y%m%d%H%M%S", &tm)) + return -1; + + scnprintf(buf, sz, "%s%02u", dt, (unsigned)tv.tv_usec / 10000); + + return 0; +} -- cgit v1.2.3