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#pragma once has been "un-deprecated" in gcc since 3.3, and is widely supported
in other compilers.
I've been using and maintaining (rebasing) this patch for a while now, as
it annoyed me to see #ifndef fooblahfoo, etc all over the place,
almost arrogant about the annoyance of having to define all these names to
perform a commen but neccicary functionality, when a completely superior
alternative exists.
I havn't sent it till now, cause its kindof a style change, and it is bad
voodoo to mess with style that has been established by more established
editors. So feel free to lambast me as a crazy bafoon.
v2 - preserve externally used headers
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ID might deviate
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If we rotate due to header out of date we need the new journal file
object, too.
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After vacuuming we need to retrieve the journal file object again, since
it might have changed.
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If a pager is used, ellipsization is redundant — the pager does
that better by hiding the part that cannot be shown. Pager's advantage
is that the user can press → to view the hidden part of a message,
and then ← to return.
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In preparation for adding more output switches, convert a series of
flags arguments into one flag variable.
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The default of 2047 hash table entries turned out to result in way too
many collisions for bigger files, hence scale the hash table size by the
estimated maximum file size.
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Previously, when the main data hash table grows too full the performance
simply started to decrease drastically. Instead, now simply rotate to a
new journal file as the hash table gets to full, so that we can start
with a new fresh empty hash table.
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We have them, they are faster to use them, so use them...
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After all the point of the realtime clock (in contrast to the monotonic
clock) is that it does not have to be strictly monotonic, hence don't
enforce this when flushing the journal from /run to /var.
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On Sun, Jul 15, 2012 at 2:00 PM, Koen Kooi <koen@dominion.thruhere.net> wrote:
> | src/journal/sd-journal.c: In function 'sd_journal_process':
> | src/journal/sd-journal.c:1891:21: warning: cast increases required alignment of target type [-Wcast-align]
> | src/journal/sd-journal.c:1900:29: warning: cast increases required alignment of target type [-Wcast-align]
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On Sun, Jul 15, 2012 at 2:00 PM, Koen Kooi <koen@dominion.thruhere.net> wrote:
> | In file included from src/journal/sd-journal.c:37:0:
> | src/journal/journal-internal.h:47:3: error: redefinition of typedef 'MatchType'
> | src/journal/journal-internal.h:36:24: note: previous declaration of 'MatchType' was here
> | src/journal/journal-internal.h:67:3: error: redefinition of typedef 'LocationType'
> | src/journal/journal-internal.h:37:27: note: previous declaration of 'LocationType' was here
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This is to match strappend() and the other string related functions.
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we now can take multiple matches, and they will apply as AND if they
apply to different fields and OR if they apply to the same fields. Also,
terms of this kind can be combined with an overreaching OR.
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The old automatism that the flushing of the journal from /run to /var
was triggered by the appearance of /var/log/journal is broken if that
directory is mounted from another host and hence always available to be
useful as mount point. To avoid probelsm with this, introduce a new unit
that is explicitly orderer after all mounte files systems and triggers
the flushing.
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With this we'll print a marker "----- Reboot -----" between two
subsequent lines with different boot IDs.
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There's now sd_journal_new_directory() for watching specific journal
directories. This is exposed in journalctl -D.
sd_journal_wait() and sd_journal_process() now return whether changes in
the journal are invalidating or just appending.
We now create inotify kernel watches only when we actually need them
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"permanent" is simply the wrong term and we use "persistant" in most
other contexts to correct this.
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This generalizes a bit of the functionality already available in dracut.
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As described in
https://bugs.freedesktop.org/show_bug.cgi?id=50184
the journal currently doesn't set fields such as _SYSTEMD_UNIT
properly for messages coming from processes that have already
terminated. This means among other things that "systemctl status" may
not show some of the output of services that wrote messages just
before they exited.
This patch fixes this by having processes that log to the journal
write their unit identifier to journald when the connection to
/run/systemd/journal/stdout is opened. Journald stores the unit ID
and uses it to fill in _SYSTEMD_UNIT when it cannot be obtained
normally (i.e. from the cgroup). To prevent impersonating another
unit, this information is only used when the caller is root.
This doesn't fix the general problem of getting metadata about
messages from terminated processes (which requires some kernel
support), but it allows "systemctl status" and similar queries to do
the Right Thing for units that log via stdout/stderr.
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