1SD_JOURNAL_HAS_RUNTIME_FILsEdS_(j3o)urnal_has_runtime_SfDi_lJeOsURNAL_HAS_RUNTIME_FILES(3)
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NAME

6       sd_journal_has_runtime_files, sd_journal_has_persistent_files - Query
7       availability of runtime or persistent journal files
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SYNOPSIS

10       #include <systemd/sd-journal.h>
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12       int sd_journal_has_runtime_files(sd_journal *j);
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14       int sd_journal_has_persistent_files(sd_journal *j);
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DESCRIPTION

17       sd_journal_has_runtime_files() returns a positive value if runtime
18       journal files (present in /run/systemd/journal/) have been found.
19       Otherwise returns 0.
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21       sd_journal_has_persistent_files() returns a positive value if
22       persistent journal files (present in /var/log/journal/) have been
23       found. Otherwise returns 0.
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RETURN VALUE

26       Both sd_journal_has_runtime_files() and
27       sd_journal_has_persistent_files() return -EINVAL if their argument is
28       NULL.
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NOTES

31       All functions listed here are thread-agnostic and only a single
32       specific thread may operate on a given object during its entire
33       lifetime. It's safe to allocate multiple independent objects and use
34       each from a specific thread in parallel. However, it's not safe to
35       allocate such an object in one thread, and operate or free it from any
36       other, even if locking is used to ensure these threads don't operate on
37       it at the very same time.
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39       These APIs are implemented as a shared library, which can be compiled
40       and linked to with the libsystemd pkg-config(1) file.
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SEE ALSO

43       sd-journal(3)
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47systemd 248                                    SD_JOURNAL_HAS_RUNTIME_FILES(3)
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