NAME

       sd_journal_has_runtime_files, sd_journal_has_persistent_files - Query availability of
       runtime or persistent journal files.

SYNOPSIS

       #include <systemd/sd-journal.h>

       int sd_journal_has_runtime_files(sd_journal *j);

       int sd_journal_has_persistent_files(sd_journal *j);

DESCRIPTION

       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.

RETURN VALUE

       Both sd_journal_has_runtime_files() and sd_journal_has_persistent_files() return -EINVAL
       if their argument is NULL.

NOTES

       All functions listed here are thread-agnostic and only a single thread may operate on a
       given sd_journal object.

       Functions listed here are available as a shared library, which can be compiled and linked
       to with the libsystemd pkg-config(1) file.

SEE ALSO

       sd-journal(3)