запросить доступность исполняемых файлов или файлов постоянного журнала (Query availability of runtime or persistent journal files)
Имя (Name)
sd_journal_has_runtime_files, sd_journal_has_persistent_files -
Query availability of runtime or persistent journal files
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);
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.
Возвращаемое значение (Return value)
Both sd_journal_has_runtime_files() and
sd_journal_has_persistent_files() return -EINVAL if their
argument is NULL.
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.
Смотри также (See also)
sd-journal(3)
