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usb.ids are not updated, because linux-usb.org is down.
It seems that the updates are corrections and new entries, to major
removal of existing entries.
Quite often we need to set up a number of fds as stdin/stdout/stderr of
a process we are about to start. Add a generic implementation for a
routine doing that that takes care to do so properly:
1. Can handle the case where stdin/stdout/stderr where previously
closed, and the fds to set as stdin/stdout/stderr hence likely in the
0..2 range. handling this properly is nasty, since we need to first
move the fds out of this range in order to later move them back in, to
make things fully robust.
2. Can optionally open /dev/null in case for one or more of the fds, in
a smart way, sharing the open file if possible between multiple of
the fds.
3. Guarantees that O_CLOEXEC is not set on the three fds, even if the fds
already were in the 0..2 range and hence possibly weren't moved.
The nobody user/group may not synthesized by systemd.
To run tests the functionalities in such situation, this adds tests
by user/group by daemon, as it is expected to exists all environments.
"--offset" takes an optional argument; if none is specified,
stroull() will attempt to parse a NULL pointer. For example:
$ udevadm test-builtin 'blkid --offset' /sys/dev/block/8:1
Update "--offset" to require an argument; also verify that the
offset is not negative.
"-m" is specified as a short form of "--monitor" in the option struct,
but not included in getopt_long's optstring. Update the optstring
to be consistent with the option struct.
Follow-up for ba7f4ae617.
By default, we detect if the real root has a separate /usr/sbin directory, but
this can be overrides with -Dsplit-bin=true|false. The check assumes that
/usr/sbin is split if it is not a symlink, so it'll return a false negative
with some more complicated setups. But that's OK, in those cases this should be
configured explicitly.
This will copy the structure of the directories in the root file system to
$DESTDIR. If a directory is a directory in $DESTDIR but a symlink in the root
file system, this script will fail. This means that it's not possible to reuse
a $DESTDIR from between ba7f4ae61 and this patch.
CPU accounting has a too bad impact on performance to be enabled by
default. Therefore we should not delegate "cpu" for now.
OTOH since commit e0c46a7364, memory accounting
has been turned on for all units by default so it makes sense to delegate this
controller by default.
Several tests request nobody user or group. If they are badly
configured, then tests may fail.
This makes test-execute check nobody user and group are configured
correctly before running such tests.
Fixes#8276.
E.g. if you have a monthly event and you set the computer clock back one
year, we can allow the next 12 monthly events to happen naturally. In fact
we already do this when you start a Persistent=yes timer, we just need to
apply the same logic when it's running and we notice the system clock
being set backwards.
On timejumps, including suspend, timer_time_change() calls for a
re-calculation of the next elapse. Sadly I'm not quite sure what the
intended effect of this was! Because it was not managing to fire
OnCalendar= timers which fired during the suspend... unless the timer had
already fired once before.
Reported, entirely correctly as far as I can see, on stackexchange:
https://unix.stackexchange.com/questions/351829/systemd-timer-that-expired-while-suspended
/* If we know the last time this was
* triggered, schedule the job based relative
- * to that. If we don't just start from
- * now. */
+ * to that. If we don't, just start from
+ * the activation time. */
The same code is called for both the initial calculation and this
re-calculation. If we're _not_ already active, then this is before the
activation time has been recorded in the unit, so just use the current
time as before. The new code is mechanically adapted from the same
logic for `OnActiveSec=` (case TIMER_ACTIVE in the code which follows).
Tested with `date --set`.
Motivations:
* Rotate monitoring data from Atop into files which are named per-day.
Fedora currently implements this with a cron job that runs at midnight,
but that didn't handle suspend correctly either.
* unbound-anchor.timer on Fedora, is used to update DNSSEC "root trust
anchor" daily, before the TTL expires. It uses OnCalendar=daily
AccuracySec=24h. Which is a bit suspect because the TTL is 2 days, but I
think it has the right general idea.
None of the other timer settings are correct, because they would not
account for time spent in suspend. Unless you set WakeSystem
(this feature is currently undocumented).
* So in general, we can expect to see people using OnCalendar= for the same
cases as cron.daily and cron.monthly. Which use anacron to keep track of
jobs which should be run even if the system was down at the time.
Timers which are configured to run more frequently than that, are
unlikely to mind if they get run slightly more often that the writer
realized, relative to the amount of time the system was really running.
* From the user report above: "I only want to use remind to show a desktop
notification, it seems excessive to wake up the computer for that. Also,
I would like to get the reminder first thing in the morning, so the
OnActiveSec doesn't help with that."
