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With the current hashmap implementation that uses chaining, placing a
reservation can serve two purposes:
- To optimize putting of entries if the number of entries to put is
known. The reservation allocates buckets, so later resizing can be
avoided.
- To avoid having very long bucket chains after using
hashmap_move(_one).
In an alternative hashmap implementation it will serve an additional
purpose:
- To guarantee a subsequent hashmap_move(_one) will not fail with
-ENOMEM (this never happens in the current implementation).
The order of entries may matter here. Oldest entries are evicted first
when the cache is full.
(Though I don't see anything to rejuvenate entries on cache hits.)
-ENOENT is the same return value as if 'other' were an allocated hashmap
that does not contain the key. A NULL hashmap is a possible way of
expressing a hashmap that contains no key.
Test more corner cases and error states in several tests.
Add new tests for:
hashmap_move
hashmap_remove
hashmap_remove2
hashmap_remove_value
hashmap_remove_and_replace
hashmap_get2
hashmap_first
In test_hashmap_many additionally test with an intentionally bad hash
function.
test-hashmap-ordered.c is generated from test-hashmap-plain.c simply by
substituting "ordered_hashmap" for "hashmap" etc.
In the cases where tests rely on the order of entries, a distinction
between plain and ordered hashmaps is made using the ORDERED macro,
which is defined only for test-hashmap-ordered.c.
Few Hashmaps/Sets need to remember the insertion order. Most don't care
about the order when iterating. It would be possible to use more compact
hashmap storage in the latter cases.
Add OrderedHashmap as a distinct type from Hashmap, with functions
prefixed with "ordered_". For now, the functions are nothing more than
inline wrappers for plain Hashmap functions.
Repetetive messages can be annoying when running with
SYSTEMD_LOG_LEVEL=debug, but they are sometimes very useful
when debugging problems. Add log_trace which is like log_debug
but becomes a noop unless LOG_TRACE is defined during compilation.
This makes it easy to enable very verbose logging for a subset
of programs when compiling from source.
Systemd 209 started setting $WATCHDOG_PID, and sd-daemon watch was
modified to check for this variable. This means that
sd_watchdog_enabled() stopped working with previous versions of
systemd. But sd-event is a public library and API and we must keep it
working even when a program compiled with a newer version of the
libary is used on a system running an older version of the manager.
getenv() and unsetenv() are fairly expensive calls, so optimize
sd_watchdog_enabled() by not calling them when unnecessary.
man: centralize the description of $WATCHDOG_PID and $WATCHDOG_USEC in
the sd_watchdog_enabled manpage. It is better not to repeat the same
stuff in two places.
This new command will ask the journal daemon to flush all log data
stored in /run to /var, and wait for it to complete. This is useful, so
that in case of Storage=persistent we can order systemd-tmpfiles-setup
afterwards, to ensure any possibly newly created directory in /var/log
gets proper access mode and owners.
runtime journal is migrated to system journal when only
"/run/systemd/journal/flushed" exist. It's ok but according to this
the system journal directory size(max use) can be over the config. If
journal is not rotated during some time the journal directory can be
remained as over the config(or default) size. To avoid, do
server_vacuum just after the system journal migration from runtime.
kdbus learned a new ioctl to tell userspace about a bus creator's
credentials, which is what we need to implement sd_bus_get_owner_creds() for
kdbus.
Move the function from sd-bus.c to bus-control.c to be able to reuse
the bus_populate_creds_from_items() helper.
Clean up the function namespace by renaming the following:
sd_bus_get_owner_uid() → sd_bus_get_name_creds_uid()
sd_bus_get_owner_machine_id() → sd_bus_get_name_machine_id()
sd_bus_get_peer_creds() → sd_bus_get_owner_creds()
kdbus learned a new command to query a bus creator's credentials. Sync
kdbus.h first, which also renames some struct to more generic terms.
That is, however, not an ABI break this time.
systemd-journald check the cgroup id to support rate limit option for
every messages. so journald should be available to access cgroup node in
each process send messages to journald.
In system using SMACK, cgroup node in proc is assigned execute label
as each process's execute label.
so if journald don't want to denied for every process, journald
should have all of access rule for all process's label.
It's too heavy. so we could give special smack label for journald te get
all accesses's permission.
'^' label.
When assign '^' execute smack label to systemd-journald,
systemd-journald need to add CAP_MAC_OVERRIDE capability to get that smack privilege.
so I want to notice this information and set default capability to
journald whether system use SMACK or not.
because that capability affect to only smack enabled kernel
The compaq ku 0133 keyboard has 8 special keys at the top:
http://lackof.org/taggart/hacking/keyboard/cpqwireless.jpg
3 of these use standard HID usage codes from the consumer page, the 5
others use part of the reserved 0x07 - 0x1f range.
This commit adds mapping for this keyboard for these reserved codes, making
the other 5 keys work.
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
