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Leap second support

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Leap second status is accepted and forwarded to clients if majority
of selectable sources agree. The actual insertion/deletion is supported
only on Linux now.
This commit is contained in:
Miroslav Lichvar
2008-12-31 09:59:20 +01:00
parent 0148ecaea0
commit 8f9c237010
13 changed files with 141 additions and 12 deletions
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17
sys_linux.c
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@@ -592,6 +592,21 @@ immediate_step(void)
/* ================================================== */
static void
set_leap(int leap)
{
if (TMX_SetLeap(leap) < 0) {
LOG_FATAL(LOGF_SysLinux, "adjtimex() failed in set_leap");
}
LOG(LOGS_INFO, LOGF_SysLinux, "System clock status set to %s leap second",
leap ? (leap > 0 ? "insert" : "delete") : "not insert/delete");
return;
}
/* ================================================== */
/* Estimate the value of HZ given the value of txc.tick that chronyd finds when
* it starts. The only credible values are 100 (Linux/x86) or powers of 2.
* Also, the bounds checking inside the kernel's adjtimex system call enforces
@@ -813,7 +828,7 @@ SYS_Linux_Initialise(void)
lcl_RegisterSystemDrivers(read_frequency, set_frequency,
accrue_offset, apply_step_offset,
get_offset_correction, immediate_step);
get_offset_correction, immediate_step, set_leap);
}
/* ================================================== */