1SD-JOURNAL(3)                     sd-journal                     SD-JOURNAL(3)
2
3
4

NAME

6       sd-journal - APIs for submitting and querying log entries to and from
7       the journal
8

SYNOPSIS

10       #include <systemd/sd-journal.h>
11
12       pkg-config --cflags --libs libsystemd
13

DESCRIPTION

15       sd-journal.h provides APIs to submit and query log entries. The APIs
16       exposed act both as client for the systemd-journald.service(8) journal
17       service and as parser for the journal files on disk.
18
19       See sd_journal_print(3), sd_journal_stream_fd(3), sd_journal_open(3),
20       sd_journal_next(3), sd_journal_get_realtime_usec(3),
21       sd_journal_add_match(3), sd_journal_seek_head(3),
22       sd_journal_get_cursor(3), sd_journal_get_cutoff_realtime_usec(3),
23       sd_journal_get_cutoff_monotonic_usec(3), sd_journal_get_usage(3),
24       sd_journal_get_catalog(3), sd_journal_get_fd(3),
25       sd_journal_has_runtime_files(3) and sd_journal_has_persistent_files(3)
26       for more information about the functions implemented.
27
28       Command line access for submitting entries to the journal is available
29       with the systemd-cat(1) tool. Command line access for querying entries
30       from the journal is available with the journalctl(1) tool.
31

NOTES

33       These APIs are implemented as a shared library, which can be compiled
34       and linked to with the libsystemd pkg-config(1) file.
35

SEE ALSO

37       systemd(1), sd_journal_print(3), sd_journal_stream_fd(3),
38       sd_journal_open(3), sd_journal_next(3), sd_journal_get_data(3),
39       sd_journal_get_realtime_usec(3), sd_journal_add_match(3),
40       sd_journal_seek_head(3), sd_journal_get_cursor(3),
41       sd_journal_get_cutoff_realtime_usec(3),
42       sd_journal_get_cutoff_monotonic_usec(3), sd_journal_get_usage(3),
43       sd_journal_get_fd(3), sd_journal_query_unique(3),
44       sd_journal_get_catalog(3), sd_journal_has_runtime_files(3),
45       sd_journal_has_persistent_files(3), journalctl(1), sd-id128(3), pkg-
46       config(1)
47
48
49
50systemd 219                                                      SD-JOURNAL(3)