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git.ipfire.org Git - thirdparty/systemd.git/blob - src/journal/journal-file.h
1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
3 #ifndef foojournalfilehfoo
4 #define foojournalfilehfoo
7 This file is part of systemd.
9 Copyright 2011 Lennart Poettering
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.
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.
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/>.
27 #include "journal-def.h"
31 typedef struct JournalFile
{
34 struct stat last_stat
;
43 void *hash_table_window
;
44 uint64_t hash_table_window_size
;
46 uint64_t *bisect_table
;
47 void *bisect_table_window
;
48 uint64_t bisect_table_window_size
;
51 uint64_t window_offset
;
54 uint64_t current_offset
;
57 typedef enum direction
{
62 int journal_file_open(const char *fname
, int flags
, mode_t mode
, JournalFile
*template, JournalFile
**ret
);
64 void journal_file_close(JournalFile
*j
);
66 int journal_file_move_to_object(JournalFile
*f
, uint64_t offset
, int type
, Object
**ret
);
68 uint64_t journal_file_entry_n_items(Object
*o
);
70 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
);
72 int journal_file_move_to_entry(JournalFile
*f
, uint64_t seqnum
, Object
**ret
, uint64_t *offset
);
74 int journal_file_find_first_entry(JournalFile
*f
, const void *data
, uint64_t size
, direction_t direction
, Object
**ret
, uint64_t *offset
);
76 int journal_file_next_entry(JournalFile
*f
, Object
*o
, direction_t direction
, Object
**ret
, uint64_t *offset
);
78 void journal_file_dump(JournalFile
*f
);
80 int journal_file_rotate(JournalFile
**f
);
82 int journal_directory_vacuum(const char *directory
, uint64_t max_use
, uint64_t min_free
);