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   sd_journal_has_runtime_files    ( 3 )

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Имя (Name)

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

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Синопсис (Synopsis)

#include <systemd/sd-journal.h>

       int sd_journal_has_runtime_files(sd_journal *j);

       int sd_journal_has_persistent_files(sd_journal *j);

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Описание (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.

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Возвращаемое значение (Return value)

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

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Примечание (Note)

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.

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Смотри также (See also)

sd-journal(3)

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