1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#ifndef foojournalfilehfoo
#define foojournalfilehfoo
/***
This file is part of systemd.
Copyright 2011 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <inttypes.h>
#include "journal-def.h"
#include "util.h"
#include "sd-id128.h"
typedef struct JournalFile {
int fd;
char *path;
struct stat last_stat;
mode_t mode;
int flags;
int prot;
bool writable;
Header *header;
HashItem *hash_table;
void *hash_table_window;
uint64_t hash_table_window_size;
uint64_t *bisect_table;
void *bisect_table_window;
uint64_t bisect_table_window_size;
void *window;
uint64_t window_offset;
uint64_t window_size;
uint64_t current_offset;
uint64_t current_field;
} JournalFile;
int journal_file_open(const char *fname, int flags, mode_t mode, JournalFile *template, JournalFile **ret);
void journal_file_close(JournalFile *j);
int journal_file_move_to_object(JournalFile *f, uint64_t offset, int type, Object **ret);
uint64_t journal_file_entry_n_items(Object *o);
int journal_file_append_entry(JournalFile *f, const dual_timestamp *ts, const struct iovec iovec[], unsigned n_iovec, uint64_t *seqno, Object **ret, uint64_t *offset);
int journal_file_move_to_entry(JournalFile *f, uint64_t seqnum, Object **ret, uint64_t *offset);
int journal_file_find_first_entry(JournalFile *f, const void *data, uint64_t size, Object **ret, uint64_t *offset);
int journal_file_find_last_entry(JournalFile *f, const void *data, uint64_t size, Object **ret, uint64_t *offset);
int journal_file_next_entry(JournalFile *f, Object *o, Object **ret, uint64_t *offset);
int journal_file_prev_entry(JournalFile *f, Object *o, Object **ret, uint64_t *offset);
void journal_file_dump(JournalFile *f);
int journal_file_rotate(JournalFile **f);
int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t min_free);
#endif
|
