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Fix fabs use on delay

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This commit is contained in:
Miroslav Lichvar
2013-06-12 15:10:54 +02:00
parent 52272f4dc5
commit ff8e04f9ba
3 changed files with 9 additions and 9 deletions
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12
ntp_core.c
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@@ -941,7 +941,7 @@ receive_packet(NTP_Packet *message, struct timeval *now, double now_err, NCR_Ins
skew = (source_freq_hi - source_freq_lo) / 2.0;
/* and then calculate peer dispersion */
epsilon = LCL_GetSysPrecisionAsQuantum() + now_err + skew * local_interval;
epsilon = LCL_GetSysPrecisionAsQuantum() + now_err + skew * fabs(local_interval);
} else {
/* If test3 failed, we probably can't calculate these quantities
@@ -988,8 +988,8 @@ receive_packet(NTP_Packet *message, struct timeval *now, double now_err, NCR_Ins
the standard deviation of the offsets in the register is less than an
administrator-defined value or the difference between measured offset
and predicted offset is larger than the increase in delay */
if (!SRC_IsGoodSample(inst->source, -theta, delta, inst->max_delay_dev_ratio,
LCL_GetMaxClockError(), &sample_time)) {
if (!SRC_IsGoodSample(inst->source, -theta, fabs(delta),
inst->max_delay_dev_ratio, LCL_GetMaxClockError(), &sample_time)) {
test4c = 0; /* Failed */
} else {
test4c = 1; /* Success */
@@ -1058,7 +1058,7 @@ receive_packet(NTP_Packet *message, struct timeval *now, double now_err, NCR_Ins
/* Test 8 checks that the root delay and dispersion quoted in
the packet are appropriate */
if ((fabs(pkt_root_delay) >= NTP_MAX_DISPERSION) ||
if ((pkt_root_delay >= NTP_MAX_DISPERSION) ||
(pkt_root_dispersion >= NTP_MAX_DISPERSION)) {
test8 = 0; /* Failed */
} else {
@@ -1078,7 +1078,7 @@ receive_packet(NTP_Packet *message, struct timeval *now, double now_err, NCR_Ins
valid_header = test5 && test6 && test7i && test8;
good_header = valid_header && test7ii;
root_delay = pkt_root_delay + delta;
root_delay = pkt_root_delay + fabs(delta);
root_dispersion = pkt_root_dispersion + epsilon;
#ifdef TRACEON
@@ -1158,7 +1158,7 @@ receive_packet(NTP_Packet *message, struct timeval *now, double now_err, NCR_Ins
SRC_AccumulateSample(inst->source,
&sample_time,
theta, delta, epsilon,
theta, fabs(delta), epsilon,
root_delay, root_dispersion,
message->stratum, (NTP_Leap) pkt_leap);