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Store computed reception time in the message struct so we don't rely on

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the message being emitted immediately.

Fix computation of reception time so it's more sensible (the block timestamp
is some time after reception of the _end_ of the block, not the start) - this
means that message-emission times are always later than message-reception
times in SBS output, which is a bit more sensible.

Use clock_gettime in preference to ftime.
This commit is contained in:
Oliver Jowett 2015-02-08 17:46:01 +00:00
parent 1584955080
commit 4e177c2d64
7 changed files with 76 additions and 31 deletions
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22
util.c
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@ -62,3 +62,25 @@ uint64_t mstime(void)
mst += tv.tv_usec/1000;
return mst;
}
uint64_t receiveclock_ns_elapsed(uint64_t t1, uint64_t t2)
{
if (t2 < t1) {
// wrapped.
return (~(t1 - t2) + 1) * 1000U / 12U;
} else {
return (t2 - t1) * 1000U / 12U;
}
}
void normalize_timespec(struct timespec *ts)
{
if (ts->tv_nsec > 1000000000) {
ts->tv_sec += ts->tv_nsec / 1000000000;
ts->tv_nsec = ts->tv_nsec % 1000000000;
} else if (ts->tv_nsec < 0) {
long adjust = ts->tv_nsec / 1000000000 + 1;
ts->tv_sec -= adjust;
ts->tv_nsec = (ts->tv_nsec + 1000000000 * adjust) % 1000000000;
}
}