The table cell reusing code is supposed to be an internal memory
optimization, and not more. This means behaviour should be the same as
if we wouldn't reuse cells.
This adds a per-cell option for uppercasing displayed strings.
Implicitly turn this on for the header row. The fact that we format the
table header in uppercase is a formatting thing after all, hence should
be applied by the formatter, i.e. the table display code.
Moreover, this provides us with the benefit that we can more nicely
reuse the specified table headers as JSON field names, like we already
do: json field names are usually not uppercase.
Since .timespan and .timestamp are unionized on top of each other this
doesn't actually matter, but it is still more correct to address it
under it's correct name.
This splits out a bunch of functions from fileio.c that have to do with
temporary files. Simply to make the header files a bit shorter, and to
group things more nicely.
No code changes, just some rearranging of source files.
The code so far logged about some errors but was silent on others. Let's
stream-line that and make the function fully self-logging on all error
conditions.
Similar to the previous commit: in many cases no further fd processing
needs to be done in forked of children before execve() or any of its
flavours are called. In those case we can use FORK_RLIMIT_NOFILE_SAFE
instead.
Whenever we invoke external, foreign code from code that has
RLIMIT_NOFILE's soft limit bumped to high values, revert it to 1024
first. This is a safety precaution for compatibility with programs using
select() which cannot operate with fds > 1024.
This commit adds the call to rlimit_nofile_safe() to all invocations of
exec{v,ve,l}() and friends that either are in code that we know runs
with RLIMIT_NOFILE bumped up (which is PID 1 and all journal code for
starters) or that is part of shared code that might end up there.
The calls are placed as early as we can in processes invoking a flavour
of execve(), but after the last time we do fd manipulations, so that we
can still take benefit of the high fd limits for that.
This is really basic stuff and in a follow-up commit will use it all
across the codebase, including in process-util.[ch] which is in
src/basic/. Hence let's move it back to src/basic/ itself.
This helper sets RLIMIT_NOFILE's soft limit to 1024 (FD_SETSIZE) for
compatibility with apps using select().
The idea is that we use this helper to reset the limit whenever we
invoke foreign code from our own processes which have bumped
RLIMIT_NOFILE high.
This is in many cases redundant, as a similar check is done by various
callers already, but in other cases (where we read the color from a
static table for example), it's nice to let the color check be done by
the table code itself, and since it doesn't hurt in the other cases just
do it again.
Zbigniew Jędrzejewski-Szmek
Yu Watanabe
Lennart Poettering