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timedated: when performing "SetTime" compensate for program lag

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(David: fix up compile-failure and simplify code a bit)
This commit is contained in:
Shawn Landden 2015-02-16 11:47:08 -08:00 committed by David Herrmann
parent 33d25be0ef
commit 2479df3094
2 changed files with 10 additions and 2 deletions
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2
TODO
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@ -168,8 +168,6 @@ Features:
* in systemctl list-unit-files: show the install value the presets would suggest for a service in a third column
* timedated should compensate on SetTime for the time spent in polkit
* figure out when we can use the coarse timers
* sd-resolve: drop res_query wrapping, people should call via the bus to resolved instead

10
src/timedate/timedated.c
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@ -540,6 +540,7 @@ static int method_set_time(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bu
Context *c = userdata;
int64_t utc;
struct timespec ts;
usec_t start;
struct tm* tm;
int r;
@ -587,6 +588,13 @@ static int method_set_time(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bu
if (r == 0)
return 1;
/* adjust ts for time spent in program */
r = sd_bus_message_get_monotonic_usec(m, &start);
if (r < 0 && r != -ENODATA)
return r;
if (r >= 0)
timespec_store(&ts, timespec_load(&ts) + (now(CLOCK_MONOTONIC) - start));
/* Set system clock */
if (clock_settime(CLOCK_REALTIME, &ts) < 0) {
log_error_errno(errno, "Failed to set local time: %m");
@ -727,6 +735,8 @@ int main(int argc, char *argv[]) {
if (r < 0)
goto finish;
(void)sd_bus_negotiate_timestamp(bus, true);
r = context_read_data(&context);
if (r < 0) {
log_error_errno(r, "Failed to read time zone data: %m");