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reference: make driftfile update interval configurable

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Add interval option to the driftfile directive to specify the minimum
interval between updates of the recorded frequency offset and skew.
This commit is contained in:
Miroslav Lichvar
2024-11-12 16:01:03 +01:00
parent 837323d687
commit d9d97f76d7
5 changed files with 39 additions and 10 deletions
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30
conf.c
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@@ -67,6 +67,7 @@ static void parse_bindcmdaddress(char *);
static void parse_broadcast(char *);
static void parse_clientloglimit(char *);
static void parse_confdir(char *);
static void parse_driftfile(char *);
static void parse_fallbackdrift(char *);
static void parse_hwtimestamp(char *);
static void parse_include(char *);
@@ -98,6 +99,7 @@ static int acquisition_port = -1;
static int ntp_port = NTP_PORT;
static char *keys_file = NULL;
static char *drift_file = NULL;
static int drift_file_interval = 3600;
static char *rtc_file = NULL;
static double max_update_skew = 1000.0;
static double correction_time_ratio = 3.0;
@@ -614,7 +616,7 @@ CNF_ParseLine(const char *filename, int number, char *line)
} else if (!strcasecmp(command, "deny")) {
parse_allow_deny(p, ntp_restrictions, 0);
} else if (!strcasecmp(command, "driftfile")) {
parse_string(p, &drift_file);
parse_driftfile(p);
} else if (!strcasecmp(command, "dscp")) {
parse_int(p, &ntp_dscp);
} else if (!strcasecmp(command, "dumpdir")) {
@@ -1655,6 +1657,29 @@ parse_confdir(char *line)
/* ================================================== */
static void
parse_driftfile(char *line)
{
char *path, *opt, *val;
path = line;
opt = CPS_SplitWord(path);
val = CPS_SplitWord(opt);
if (*path == '\0' ||
(*opt != '\0' && (strcasecmp(opt, "interval") != 0 ||
sscanf(val, "%d", &drift_file_interval) != 1 ||
*CPS_SplitWord(val) != '\0'))) {
command_parse_error();
return;
}
Free(drift_file);
drift_file = Strdup(path);
}
/* ================================================== */
static void
parse_include(char *line)
{
@@ -1980,8 +2005,9 @@ CNF_GetAcquisitionPort(void)
/* ================================================== */
char *
CNF_GetDriftFile(void)
CNF_GetDriftFile(int *interval)
{
*interval = drift_file_interval;
return drift_file;
}