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ntp: smear leap second with slewing mode and smoothing

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Suppress leap second in packets sent to clients when smoothing and leap
second slew mode are enabled.
This commit is contained in:
Miroslav Lichvar 2015-04-01 17:33:39 +02:00
parent 293806d52d
commit ba85544611
3 changed files with 16 additions and 0 deletions
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5
ntp_core.c
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@ -786,6 +786,11 @@ transmit_packet(NTP_Mode my_mode, /* The mode this machine wants to be */
if (SMT_IsEnabled() && (my_mode == MODE_SERVER || my_mode == MODE_BROADCAST)) { if (SMT_IsEnabled() && (my_mode == MODE_SERVER || my_mode == MODE_BROADCAST)) {
smooth_time = 1; smooth_time = 1;
smooth_offset = SMT_GetOffset(&local_transmit); smooth_offset = SMT_GetOffset(&local_transmit);
/* Suppress leap second when smoothing and slew mode are enabled */
if (REF_GetLeapMode() == REF_LeapModeSlew &&
(leap_status == LEAP_InsertSecond || leap_status == LEAP_DeleteSecond))
leap_status = LEAP_Normal;
} else { } else {
smooth_time = 0; smooth_time = 0;
smooth_offset = 0.0; smooth_offset = 0.0;

8
reference.c
View file

@ -328,6 +328,14 @@ REF_SetModeEndHandler(REF_ModeEndHandler handler)
/* ================================================== */ /* ================================================== */
REF_LeapMode
REF_GetLeapMode(void)
{
return leap_mode;
}
/* ================================================== */
static double static double
Sqr(double x) Sqr(double x)
{ {

3
reference.h
View file

@ -69,6 +69,9 @@ typedef void (*REF_ModeEndHandler)(int result);
/* Set the handler for being notified of mode ending */ /* Set the handler for being notified of mode ending */
extern void REF_SetModeEndHandler(REF_ModeEndHandler handler); extern void REF_SetModeEndHandler(REF_ModeEndHandler handler);
/* Get leap second handling mode */
extern REF_LeapMode REF_GetLeapMode(void);
/* Function which takes a local cooked time and returns the estimated /* Function which takes a local cooked time and returns the estimated
time of the reference. It also returns the other parameters time of the reference. It also returns the other parameters
required for forming the outgoing NTP packet. required for forming the outgoing NTP packet.