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journal: add preliminary incomplete implementation
[thirdparty/systemd.git] / src / journal / sd-journal.h
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1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
2
3#ifndef foojournalhfoo
4#define foojournalhfoo
5
6/***
7 This file is part of systemd.
8
9 Copyright 2011 Lennart Poettering
10
11 systemd is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
15
16 systemd is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with systemd; If not, see <http://www.gnu.org/licenses/>.
23***/
24
25#include <inttypes.h>
26#include <sys/types.h>
27
28#include "sd-id128.h"
29
30/* TODO:
31 *
32 * - implement rotation
33 * - check LE/BE conversion for 8bit, 16bit, 32bit values
34 * - implement parallel traversal
35 * - implement audit gateway
36 * - implement native gateway
37 * - extend hash table/bisect table as we go
38 */
39
40typedef struct sd_journal sd_journal;
41
42int sd_journal_open(sd_journal **ret);
43void sd_journal_close(sd_journal *j);
44
45int sd_journal_previous(sd_journal *j);
46int sd_journal_next(sd_journal *j);
47
48void* sd_journal_get(sd_journal *j, const char *field, size_t *size);
49uint64_t sd_journal_get_seqnum(sd_journal *j);
50uint64_t sd_journal_get_realtime_usec(sd_journal *j);
51uint64_t sd_journal_get_monotonic_usec(sd_journal *j);
52
53int sd_journal_add_match(sd_journal *j, const char *item, size_t *size);
54
55int sd_journal_seek_head(sd_journal *j);
56int sd_journal_seek_tail(sd_journal *j);
57
58int sd_journal_seek_seqnum(sd_journal *j, uint64_t seqnum);
59int sd_journal_seek_monotonic_usec(sd_journal *j, uint64_t usec);
60int sd_journal_seek_realtime_usec(sd_journal *j, uint64_t usec);
61
62uint64_t sd_journal_get_max_size(sd_journal *j);
63uint64_t sd_journal_get_min_size(sd_journal *j);
64uint64_t sd_journal_get_keep_free(sd_journal *j);
65
66int sd_journal_set_max_size(sd_journal *j, uint64_t size);
67int sd_journal_set_min_size(sd_journal *j, uint64_t size);
68int sd_journal_set_keep_free(sd_journal *j, uint64_t size);
69
70sd_id128_t sd_journal_get_file_id(sd_journal *j);
71sd_id128_t sd_journal_get_machine_id(sd_journal *j);
72sd_id128_t sd_journal_get_boot_id(sd_journal *j);
73
74#endif