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"""
Given an array a[N] of N elements of type T:
- Forming a pointer &a[i] (or a + i) with 0 ≤ i ≤ N is safe.
- Forming a pointer &a[i] with i < 0 or i > N causes undefined behavior.
- Dereferencing a pointer &a[i] with 0 ≤ i < N is safe.
- Dereferencing a pointer &a[i] with i < 0 or i ≥ N causes undefined behavior.
"""
As pointed by by @medhefgo, here we were forming a pointer to a[-1]. a itself
wasn't NULL, so a > 0, and a-1 was also >= 0, and this didn't seem to cause any
problems. But it's better to be formally correct, especially if we move the
code to src/fundamental/ later on and compile it differently.
Compilation shows no size change (with -O0 -g) on build/systemd, so this should
have no effect whatsoever.
With my crappy home network the test takes 29.5s usually. But with any
tiny slowdown, it goes above the 30s limit and fails. Let's bump the
timeout to avoid spurious failures.
"meson test" uses a test name generated from the file name and those long names
cause the test log output to exceed terminal width which looks bad. Let's replace
some long names with more-meaningful names that actually say something about
the tests.
These unit (if enabled) will try to update the OS in regular intervals.
Moreover, every day in the early morning this will attempt to reboot the
system if there's a newer version installed than running.
The message is misleading: it's not about synchronization but about
successful communicaiton. And it's not about "initial", but only about
first contact since we siwtched to this server.
Let's hence reword the message a bit.
Usecase: later on we can use this to retroactively adjust log output in
journalctl or similar on systems lacking an RTC: we just have to search
for this sructured log message that indicates the first sync point and
can then retroactively adjust the incorrect timestamps collected before
that.
We basically had the same code in three places. Let's unify it in a
common helper function.
event_add_time_change() might be something we should add to the official
sd-event API sooner or later, given its general usefulness.
Let's make sure manager_adjust_clock() is purely about setting the
clock, and nothing else.
Let's clean up logging this way. manager_adjust_clock() now won#t log
about errors, but the caller can safely do that, and do with the right
log message string.
With the changes in 20ec8f534f, we would sort
entries with sort-key as expected (higher versions earlier, i.e. at the top of
the menu), but entries without the sort-key as before, with higher versions
later.
When we have a bunch of boot entries grouped by machine-id (or even in the
typical case of all boot entries having the same machine id), sorting by id
should generally give good results. Entries will be grouped by installation,
and then newer entries should generally be at the top of the menu.
The code is quite different from the rest of bootspec.c, with different
deps and stuff. There's even a /***/ line to separate the two parts.
Given how large the file already is, let#s just split it into two.
No code changes, just some splitting out.
