diff options
| author | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2014-03-14 21:43:56 -0400 |
|---|---|---|
| committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2014-03-14 21:44:20 -0400 |
| commit | 8fe90522fb74dd84ff791a7546fee70047672396 (patch) | |
| tree | 431a098266bd3ea245a0f019678667a06cc094b0 /src/timedate/timedate-sntp.c | |
| parent | 40b71e89bae4e51768db4dc50ec64c1e9c96eec4 (diff) | |
timedated: use builtins for integer log and exp
Diffstat (limited to 'src/timedate/timedate-sntp.c')
| -rw-r--r-- | src/timedate/timedate-sntp.c | 25 |
1 files changed, 3 insertions, 22 deletions
diff --git a/src/timedate/timedate-sntp.c b/src/timedate/timedate-sntp.c index 608177f662..4d992c49de 100644 --- a/src/timedate/timedate-sntp.c +++ b/src/timedate/timedate-sntp.c @@ -138,25 +138,6 @@ struct SNTPContext { static int sntp_arm_timer(SNTPContext *sntp); -static int log2i(int a) { - int exp = 0; - - assert(a > 0); - - while (a > 0) { - a >>= 1; - exp++; - } - - return exp; -} - -static double log2d(int a) { - if (a < 0) - return 1.0 / (1UL << - a); - return 1UL << a; -} - static double ntp_ts_to_d(const struct ntp_ts *ts) { return be32toh(ts->sec) + ((double)be32toh(ts->frac) / UINT_MAX); } @@ -531,21 +512,21 @@ static int sntp_receive_response(sd_event_source *source, int fd, uint32_t reven " dest : %f\n" " offset : %+f sec\n" " delay : %+f sec\n" - " packet count : %llu\n" + " packet count : %"PRIu64"\n" " jitter/spike : %f (%s)\n" " poll interval: %llu\n", NTP_FIELD_LEAP(ntpmsg->field), NTP_FIELD_VERSION(ntpmsg->field), NTP_FIELD_MODE(ntpmsg->field), ntpmsg->stratum, - log2d(ntpmsg->precision), ntpmsg->precision, + exp2(ntpmsg->precision), ntpmsg->precision, ntpmsg->stratum == 1 ? ntpmsg->refid : "n/a", origin - OFFSET_1900_1970, recv - OFFSET_1900_1970, trans - OFFSET_1900_1970, dest - OFFSET_1900_1970, offset, delay, - (unsigned long long)sntp->packet_count, + sntp->packet_count, sntp->samples_jitter, spike ? "yes" : "no", sntp->poll_interval / USEC_PER_SEC); |