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sys_timex: add support for setting TAI-UTC offset

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This commit is contained in:
Miroslav Lichvar 2017-06-29 15:16:20 +02:00
parent a768578a26
commit cde0a20307
1 changed files with 17 additions and 10 deletions
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27
sys_timex.c
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@ -98,15 +98,12 @@ static void
set_leap(int leap, int tai_offset) set_leap(int leap, int tai_offset)
{ {
struct timex txc; struct timex txc;
int applied; int applied, prev_status;
applied = 0; txc.modes = 0;
if (!leap) { applied = SYS_Timex_Adjust(&txc, 0) == TIME_WAIT;
txc.modes = 0;
if (SYS_Timex_Adjust(&txc, 1) == TIME_WAIT)
applied = 1;
}
prev_status = status;
status &= ~(STA_INS | STA_DEL); status &= ~(STA_INS | STA_DEL);
if (leap > 0) if (leap > 0)
@ -117,11 +114,21 @@ set_leap(int leap, int tai_offset)
txc.modes = MOD_STATUS; txc.modes = MOD_STATUS;
txc.status = status; txc.status = status;
#ifdef MOD_TAI
if (tai_offset && tai_offset != txc.tai) {
txc.modes |= MOD_TAI;
txc.constant = tai_offset;
LOG(LOGS_INFO, "System clock TAI offset set to %d seconds", tai_offset);
}
#endif
SYS_Timex_Adjust(&txc, 0); SYS_Timex_Adjust(&txc, 0);
LOG(LOGS_INFO, "System clock status %s leap second", if (prev_status != status) {
leap ? (leap > 0 ? "set to insert" : "set to delete") : LOG(LOGS_INFO, "System clock status %s leap second",
(applied ? "reset after" : "set to not insert/delete")); leap ? (leap > 0 ? "set to insert" : "set to delete") :
(applied ? "reset after" : "set to not insert/delete"));
}
} }
/* ================================================== */ /* ================================================== */