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memory_erase() so far just called memset(), which the compiler might
optimize away under certain conditions if it feels there's benefit in
it. C11 knows a new memset_s() call that is like memset(), but may not
be optimized away. Ideally, we'd just use that call, but glibc currently
does not support it. Hence, implement our own simplistic version of it.
We use a GCC pragma to turn off optimization for this call, and also use
the "volatile" keyword on the pointers to ensure that gcc will use the
pointers as-is. According to a variety of internet sources, either one
does the trick. However, there are also reports that at least the
volatile thing isn't fully correct, hence let's add some snake oil and
employ both techniques.
https://news.ycombinator.com/item?id=4711346
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systemd-run can launch units with RuntimeDirectory
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test-execute: add more tests
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Teach bus_append_unit_property_assignment() about 'Delegate' property
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systemctl: port to extract_first_word
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machine: fix #1739
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Port capabiliy bounding set parsing to extract_first_word
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Revert "utf8.[ch]: use char32_t and char16_t instead of int, int32_t,…
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sd-journal.c: port to extract_first_word
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machine: : port to extract_first_word
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utf8.[ch]: use char32_t and char16_t instead of int, int32_t, int16_t
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tests: lookup_paths_init depends on SYSTEMD_UNIT_PATH. Test it
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core: two trivial debug/error message improvements
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network: fix use-after-free in link_free
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update TODO
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The directive is called FileDescriptorStoreMax=, not FDStoreMax=.
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Make sure journald never blocks on sd_notify() to PID 1
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- inotify utab has been removed and we use libmount now
- x-systemd.requires= fstab option has been implemented to specify
dependencies in fstab
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Otherwise we might run into deadlocks, when journald blocks on the
notify socket on PID 1, and PID 1 blocks on IPC to dbus-daemon and
dbus-daemon blocks on logging to journald. Break this cycle by making
sure that journald never ever blocks on PID 1.
Note that this change disables support for event loop watchdog support,
as these messages are sent in blocking style by sd-event. That should
not be a big loss though, as people reported frequent problems with the
watchdog hitting journald on excessively slow IO.
Fixes: #1505.
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Better generate a real error then simply connect to the wrong socket.
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rework C11 utf8.[ch] to use char32_t instead of uint32_t when referring
to unicode chars, to make things more expressive.
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Let's make sure we don't start blocking on sd_notify() earlier than
necessary, let's bump the socket buffer sizes to 8M.
We already do something similar for our logging socket buffers, hence
apply a similar bump here.
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The default of 16 is pretty low, let's bump this to accomodate for more
queued datagrams. This is useful for AF_UNIX/SOCK_DGRAM logging and
sd_notify() sockets as this allows queuing more datagrams before things
start to block, thus improving parallelization and logging performance.
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- Make sure we log each error at least once, and at most once
- Replace FOREACH_WORD loops by extract_first_word() loops
- Use FOREACH_DIRENT() for directory loops
- Use free_and_strdup() where appropriate
- Do not operate on half-loaded SysV files
- Always properly free all memory
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Let's make sure we don't even try to create the audit socket
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When rebooting nspawn containers about 400 times we'd otherwise hit the
fd limit and refuse further reboots.
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This adds support for a new environment variable
SYSTEMCTL_INSTALL_CLIENT_SIDE, that ensures that systemctl executes
install operations client-side instead of passing them to PID1. This is
useful in debugging situations, but even beyond that. However, we don't
want to make it official API, hence let's just make it an undocumented
environment variable.
Similar, add a second variable, SYSTEMCTL_SKIP_SYSV which allows
skipping the SysV chkconfig fall-back if set. This is useful for similar
reasons, and exposed as undocumented as environment variable for similar
reasons, too.
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core: set_unit_path overwrites SYSTEMD_UNIT_PATH
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To avoid polluting test/
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To avoid polluting test/
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journal-remote: increase memory limit per connection to avoid errors …
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