On Wed, 2002-06-19 at 09:39, Doug MacEachern wrote:
>
> static void get_current_time(apr_uint64_t *timestamp)
> {
> /* ### this needs to be made thread-safe! */
>
> apr_uint64_t time_now;
> static apr_uint64_t time_last = 0;
> static int fudge = 0;
>
> any plans/thoughts on making it threadsafe?
How about something like this as a replacement for the
get_current_time() logic...
for (;;) {
gettimeofday(&now);
if (now > time_last) {
atomic_cas(&time_last, now, time_last);
if (atomic_cas succeeded) {
return now;
}
}
else {
now = time_last + 1;
atomic_cas(&time_last, now, time_last);
if (atomic_cas succeeded) {
return now;
}
}
}
--Brian
