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Message handler callbacks can be simplified drastically if the
dispatcher automatically replies to method calls if errors are returned.
Thus: add an sd_bus_error argument to all message handlers. When we
dispatch a message handler and it returns negative or a set sd_bus_error
we send this as message error back to the client. This means errors
returned by handlers by default are given back to clients instead of
rippling all the way up to the event loop, which is desirable to make
things robust.
As a side-effect we can now easily turn the SELinux checks into normal
function calls, since the method call dispatcher will generate the right
error replies automatically now.
Also, make sure we always pass the error structure to all property and
method handlers as last argument to follow the usual style of passing
variables for return values as last argument.
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This patch converts PID 1 to libsystemd-bus and thus drops the
dependency on libdbus. The only remaining code using libdbus is a test
case that validates our bus marshalling against libdbus' marshalling,
and this dependency can be turned off.
This patch also adds a couple of things to libsystem-bus, that are
necessary to make the port work:
- Synthesizing of "Disconnected" messages when bus connections are
severed.
- Support for attaching multiple vtables for the same interface on the
same path.
This patch also fixes the SetDefaultTarget() and GetDefaultTarget() bus
calls which used an inappropriate signature.
As a side effect we will now generate PropertiesChanged messages which
carry property contents, rather than just invalidation information.
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The call is one of the most important ones we expose, where we place
major emphasis on. We should make sure to give it a short, memorable
name.
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Also change sd_bus_message_exit_container to return -ENOENT
when not in a container, to make it easier to distinguish different
errors.
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src/systemctl/systemctl.c: In function ‘get_listening’:
src/systemctl/systemctl.c:535:25: warning: declaration of ‘listen’ shadows a global declaration [-Wshadow]
src/systemctl/systemctl.c: In function ‘list_sockets’:
src/systemctl/systemctl.c:690:44: warning: declaration of ‘listen’ shadows a global declaration [-Wshadow]
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do the same for list-jobs
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Otherwise 'not-found' overflows into the ACTIVE column.
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reboot syscall can be performed with an additional argument. In some
systems this functionality can be useful to modify the mode of the
next boot performed by the bootloader.
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Among other things this makes sure we always expose a --version command
and show it in the help texts.
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each invocation
We can determine the list entry type via the typeof() gcc construct, and
so we should to make the macros much shorter to use.
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Since the invention of read-only memory, write-only memory has been
considered deprecated. Where appropriate, either make use of the
value, or avoid writing it, to make it clear that it is not used.
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This extends 62678ded 'efi: never call qsort on potentially
NULL arrays' to all other places where qsort is used and it
is not obvious that the count is non-zero.
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The cgroup attribute memory.soft_limit_in_bytes is unlikely to stay
around in the kernel for good, so let's not expose it for now. We can
readd something like it later when the kernel guys decided on a final
API for this.
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wait_filter() callback shouldn't process JobRemove signals for arbitrary
jobs. It should only deal with signals for jobs which are included in
set of jobs we wait for.
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We can use systemctl show unitname to show the BlockIODeviceWeight
of unit.
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This patch allows user to set up BlockIODeviceWeight for unit
through systemctl. Such as
systemctl set-property sshd.service BlockIODeviceWeight="/dev/sda 100"
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This patch allows user to set up BlockIOReadBandwidth and BlockIOWriteBandwidth
for unit through systemctl. Such as
systemctl set-property sshd.service BlockIOReadBandwidth="/dev/sda 100000"
systemctl set-property sshd.service BlockIOWriteBandwidth="/dev/sda 200000"
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This make systemd-delta follow the behaviour of systemctl
and journalctl.
https://bugs.freedesktop.org/show_bug.cgi?id=67656
[zj: unify color query methods between those three programs.]
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"systemctl load" has always been racy since the GC could hit any time,
before making use of the loaded unit. Very recent systemd will run GC
immeidately after all unit state changes which has the effect that the
the effect of "systemctl load" is completely gone now, so let's remove
the support for it in "systemctl" for good.
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"systemctl set-log-level" is a command for analysis and tracing hence
"systemd-analyze" should be the better home for it, thus allowing us to
make the overly large "systemctl" a bit smaller.
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It's an analysis command and its format is explicitly not covered by any
stability guarantees, hence move away from systemctl and into
systemd-analyze, minimizing the already large interface of systemctl a
bit.
This patch also adds auto-paging to the various systemd-analyze commands
where that makes sense
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This allows to show only units with specified LOAD or SUB or ACTIVE state.
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