[pve-devel] [PATCH common] add upid_wait method
Dietmar Maurer
dietmar at proxmox.com
Fri Jan 22 17:32:00 CET 2016
> As sleep returns the seconds actually slept we could save the return
> value after the sleep call
> and only call waitfunc if we slept for $sleep_intervall seconds? or
> checking if $! != EINTR.
>
> Or is there a better way?
I usually implement and use a sleep_until() command:
sub sleep_until {
my ($self, $end_time) = @_;
for (;;) {
my $cur_time = time();
last if $cur_time >= $end_time;
CORE::sleep(1);
}
}
I guess you need to adopt that for shorter periods (less that 1 second).
We already have/use that code in src/PVE/HA/Env.pm
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