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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON |
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SD_JOURNAL_HAS_RUNTIME_FILES(3)l_has_runtime_filesL_HAS_RUNTIME_FILES(3)
sd_journal_has_runtime_files, sd_journal_has_persistent_files -
Query availability of runtime or persistent journal files
#include <systemd/sd-journal.h>
int sd_journal_has_runtime_files(sd_journal *j);
int sd_journal_has_persistent_files(sd_journal *j);
sd_journal_has_runtime_files() returns a positive value if
runtime journal files (present in /run/systemd/journal/) have
been found. Otherwise returns 0.
sd_journal_has_persistent_files() returns a positive value if
persistent journal files (present in /var/log/journal/) have been
found. Otherwise returns 0.
Both sd_journal_has_runtime_files() and
sd_journal_has_persistent_files() return -EINVAL if their
argument is NULL.
All functions listed here are thread-agnostic and only a single
specific thread may operate on a given object during its entire
lifetime. It's safe to allocate multiple independent objects and
use each from a specific thread in parallel. However, it's not
safe to allocate such an object in one thread, and operate or
free it from any other, even if locking is used to ensure these
threads don't operate on it at the very same time.
These APIs are implemented as a shared library, which can be
compiled and linked to with the libsystemd pkg-config(1) file.
sd-journal(3)
This page is part of the systemd (systemd system and service
manager) project. Information about the project can be found at
⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have
a bug report for this manual page, see
⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.
This page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2022-12-17. (At that
time, the date of the most recent commit that was found in the
repository was 2022-12-16.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
systemd 252 SD_JOURNAL_HAS_RUNTIME_FILES(3)
Pages that refer to this page: sd-journal(3), systemd.directives(7), systemd.index(7)
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