David Ribeiro Alves has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/10371


Change subject: Fix int overflow GetClockTimeMicros() on macOS
......................................................................

Fix int overflow GetClockTimeMicros() on macOS

On macOS mach_timespec_t.tv_sec is only 4 bytes and we
were converting to micros before moving to a bigger var.
This would cause all the wall times obtained on a mac (through
GetClockTimeMicros() to be wrong.

This was likely the cause of KUDU-2435 and KUDU-2408 too, since
the time would easily wrap, causing us to a update the clock with
a value that was seemingly from the future.

Posix just requires it to be an integer
(see: https://en.wikipedia.org/w/index.php?title=Time_t&oldid=450752800)
so also fixed it on the non-macOS path.

Testing this is likely not worth it since the only real change
was on macOS where the overlow doesn't happen anymore.

Change-Id: Ie0eaa548f61352be529755a732566613cfa72098
---
M src/kudu/gutil/walltime.h
1 file changed, 11 insertions(+), 2 deletions(-)



  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/71/10371/1
--
To view, visit http://gerrit.cloudera.org:8080/10371
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ie0eaa548f61352be529755a732566613cfa72098
Gerrit-Change-Number: 10371
Gerrit-PatchSet: 1
Gerrit-Owner: David Ribeiro Alves <[email protected]>

Reply via email to