sd_journal_has_runtime_files (3) - Linux Manuals
sd_journal_has_runtime_files: Query availability of runtime or persistent journal files.
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); - int sd_journal_has_persistent_files(sd_journal
DESCRIPTION
sd_journal_has_runtime_files()
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.