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In some cases it is interesting to map a PID to two units at the same
time. For example, when a user logs in via a getty, which is reexeced to
/sbin/login that binary will be explicitly referenced as main pid of the
getty service, as well as implicitly referenced as part of the session
scope.
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reliable cgroup empty notifier
When a process dies that we can associate with a specific unit, start
watching all other processes of that unit, so that we can associate
those processes with the unit too.
Also, for service units start doing this as soon as we get the first
SIGCHLD for either control or main process, so that we can follow the
processes of the service from one to the other, as long as process that
remain are processes of the ones we watched that died and got reassigned
to us as parent.
Similar, for scope units start doing this as soon as the scope
controller abandons the unit, and thus management entirely reverts to
systemd. To abandon a unit introduce a new Abandon() scope unit method
call.
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introduced in c7040b5d1c2c148f12b6a5eef3dfce1661805131
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Also remove some debug statement that should not have been committed.
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on the host either
Since the current kernel cgroup notification logic is easily confused by
existing subgroups, let's do the same thing as in containers before. and
just not wait for non-control and non-main processes.
This should be corrected as soon as we have sane cgroup notifications
from the kernel.
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creating a transient service
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By specifiy a Controller property when creating the scope a client can
specify a bus name that will be notified with a RequestStop bus signal
when the scope has been asked to shut down, instead of sending SIGTERM
to the scope processes themselves.
https://bugzilla.redhat.com/show_bug.cgi?id=1032695
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never come
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Given that we now have KillMode=mixed where SIGTERM might kill a smaller
set than SIGKILL we need to make sure to always go explicitly throught
the SIGKILL state to get the right end result.
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process, but SIGKILL to all daemon processes
This should fix some race with terminating systemd --user, where the
system systemd instance might race against the user systemd instance
when sending SIGTERM.
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We'd reqeue the next status update very soon after. Change it so that we wait
for full 5s without any job status changes until we print anything.
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This reverts commit 28c758de94bc8ba97b89d9dab3f517cf466978d0
but makes job_coldplug smarter.
In (v1) I changed the job start timestamp to be always set, so the
start time can be reported in the cylon eye message. The bug was that
when deserializing jobs, they would be ignored if their start
timestamp was unset which was synonymous with no timeout. But after
the change, jobs would have a start timestamp set despite having no
timeout. After deserialization they would be considered immediately
expired. Fix this by checking if the timeout is not zero when
considering jobs for expiration.
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This reverts commit 2cba2e03524ec0922ddc70f933e8a89b7d23b4ec.
It breaks bootup with dracut, the transition to the real rootfs fails.
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When set to auto, status will shown when the first ephemeral message
is shown (a job has been running for five seconds). Then until the
boot or shutdown ends, status messages will be shown.
No indication about the switch is done: I think it should be clear
for the user that first the cylon eye and the ephemeral messages appear,
and afterwards messages are displayed.
The initial arming of the event source was still wrong, but now should
really be fixed.
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This will only work on Linux >= 3.11, and probably not on all
filesystems. Fallback code is provided.
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message from the queue
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We know that launching a unit will fail if some required directories
haven't been mounted yet. There's no point in starting it just to
have it fail even before it gets a chance to run.
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Just a microopt.
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It would fire just once.
Also fix units from sec to usec as appropriate.
Decrease the switching interval to 1/3 s, so that when the time
remaining is displayed with 1s precision, it doesn't jump by 2s every
once in a while. Also, the system is feels noticably faster when the
status changes couple of times per second instead of every few
seconds.
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Produces output like:
[ *** ] (1 of 2) A start job is running for slow.service (33s / 1min 30s)
The first nubmer is the time since job start, the second is the job timeout.
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Things will continue when either the job timeout
or the unit timeout is reached. Add functionality to
access that info.
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Split out into sd_rtnl_message_addr_set_{prefixlen,flags,scope}().
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Similar to PrivateNetwork=, PrivateTmp= introduce PrivateDevices= that
sets up a private /dev with only the API pseudo-devices like /dev/null,
/dev/zero, /dev/random, but not any physical devices in them.
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ourselves via SetEnvironment bus calls
We just quietly eat them up, so that simple environment importing still
works without error.
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mode
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Sockets are ordered before sockets.target anyway, and sockets.target
is ordered before basic.target, and hence all bus services end up
being ordered after dbus.socket anyway. Since for kdbus clients
dbus.socket is obsolete, let's not add this dependency explicitly.
Also, it's hot in Australia and we are going for breakfast now.
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- turn strv_merge into strv_extend_strv.
appending strv b to the end of strv a instead of creating a new strv
- strv_append: remove in favor of strv_extend and strv_push.
- strv_remove: write slightly more elegant
- strv_remove_prefix: remove unused function
- strv_overlap: use strv_contains
- strv_printf: STRV_FOREACH handles NULL correctly
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when pid is set to 0 use /proc/self
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This was introduced in e1770af812 (2012-02-03, swap: replace failure
boolean by result enum).
This just removes unneeded lines of code, no functional change.
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We set the variable in the unit file for --user, so this check is
always true.
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