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
|
#ifndef SQUAT_TRIE_H
#define SQUAT_TRIE_H
#include "file-lock.h"
#include "seq-range-array.h"
enum squat_index_flags {
SQUAT_INDEX_FLAG_MMAP_DISABLE = 0x01,
SQUAT_INDEX_FLAG_NFS_FLUSH = 0x02,
SQUAT_INDEX_FLAG_DOTLOCK_USE_EXCL = 0x04
};
enum squat_index_type {
SQUAT_INDEX_TYPE_HEADER = 0x01,
SQUAT_INDEX_TYPE_BODY = 0x02
};
struct squat_trie_build_context;
struct squat_trie *
squat_trie_init(const char *path, uint32_t uidvalidity,
enum file_lock_method lock_method,
enum squat_index_flags flags, mode_t mode, gid_t gid);
void squat_trie_deinit(struct squat_trie **trie);
void squat_trie_set_partial_len(struct squat_trie *trie, unsigned int len);
void squat_trie_set_full_len(struct squat_trie *trie, unsigned int len);
int squat_trie_open(struct squat_trie *trie);
int squat_trie_refresh(struct squat_trie *trie);
int squat_trie_build_init(struct squat_trie *trie,
struct squat_trie_build_context **ctx_r);
/* bodies must be added before headers */
int squat_trie_build_more(struct squat_trie_build_context *ctx,
uint32_t uid, enum squat_index_type type,
const unsigned char *data, unsigned int size);
/* if expunged_uids is non-NULL, they may be removed from the index if they
still exist. */
int squat_trie_build_deinit(struct squat_trie_build_context **ctx,
const ARRAY_TYPE(seq_range) *expunged_uids)
ATTR_NULL(2);
int squat_trie_get_last_uid(struct squat_trie *trie, uint32_t *last_uid_r);
/* type specifies if we're looking at header, body or both */
int squat_trie_lookup(struct squat_trie *trie, const char *str,
enum squat_index_type type,
ARRAY_TYPE(seq_range) *definite_uids,
ARRAY_TYPE(seq_range) *maybe_uids);
struct squat_uidlist *squat_trie_get_uidlist(struct squat_trie *trie);
size_t squat_trie_mem_used(struct squat_trie *trie, unsigned int *count_r);
#endif
|
