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SD_JOURNAL_GET_CUTOFF_sd_journal_get_cutSD_JOURNAL_GET_CUTOFF_REALTIME_USEC(3)

NAME
       sd_journal_get_cutoff_realtime_usec,
       sd_journal_get_cutoff_monotonic_usec - Read cut-off timestamps from the
       current journal entry

SYNOPSIS
       #include <systemd/sd-journal.h>

       int sd_journal_get_cutoff_realtime_usec(sd_journal* j, uint64_t* from,
					       uint64_t* to);

       int sd_journal_get_cutoff_monotonic_usec(sd_journal* j,
						sd_id128_t boot_id,
						uint64_t* from, uint64_t* to);

DESCRIPTION
       sd_journal_get_cutoff_realtime_usec() gets the realtime (wallclock)
       timestamps of the first and last entries accessible in the journal. It
       takes three arguments: the journal context object and two pointers to
       64-bit unsigned integers to store the timestamps in. The timestamps are
       in microseconds since the epoch, i.e.  CLOCK_REALTIME. Either one of
       the two timestamp arguments may be passed as NULL in case the timestamp
       is not needed, but not both.

       sd_journal_get_cutoff_monotonic_usec() gets the monotonic timestamps of
       the first and last entries accessible in the journal. It takes three
       arguments: the journal context object, a 128-bit identifier for the
       boot, and two pointers to 64-bit unsigned integers to store the
       timestamps. The timestamps are in microseconds since boot-up of the
       specific boot, i.e.  CLOCK_MONOTONIC. Since the monotonic clock begins
       new with every reboot it only defines a well-defined point in time when
       used together with an identifier identifying the boot, see
       sd_id128_get_boot(3) for more information. The function will return the
       timestamps for the boot identified by the passed boot ID. Either one of
       the two timestamp arguments may be passed as NULL in case the timestamp
       is not needed, but not both.

RETURN VALUE
       sd_journal_get_cutoff_realtime_usec() and
       sd_journal_get_cutoff_monotonic_usec() return 1 on success, 0 if not
       suitable entries are in the journal or a negative errno-style error
       code.

NOTES
       The sd_journal_get_cutoff_realtime_usec() and
       sd_journal_get_cutoff_monotonic_usec() interfaces are available as a
       shared library, which can be compiled and linked to with the
       libsystemd-journal pkg-config(1) file.

SEE ALSO
       systemd(1), sd-journal(3), sd_journal_open(3),
       sd_journal_get_realtime_usec(3), sd_id128_get_boot(3), clock_gettime(2)

systemd 208				SD_JOURNAL_GET_CUTOFF_REALTIME_USEC(3)

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