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);