tree 95fed7c06f701e3e937566ddb7717617fc7e5549
parent 6e0128630b80d691c915cba5cec43db59d191898
author Christopher Faulet <cfaulet@haproxy.com> 1509437031 +0100
committer Willy Tarreau <w@1wt.eu> 1509454713 +0100
encoding latin1

BUG/MAJOR: threads/time: Store the time deviation in an 64-bits integer

In function tv_update_date, we keep an offset reprenting the time deviation to
adjust the system time. At every call, we check if this offset must be updated
or not. Of course, It must be shared by all threads. It was store in a
timeval. But it cannot be atomically updated. So now, instead, we store it in a
64-bits integer. And in tv_update_date, we convert this integer in a
timeval. Once updated, it is converted back in an integer to be atomically
stored.

To store a tv_offset into an integer, we use 32 bits from tv_sec and 32 bits
tv_usec to avoid shift operations.