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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/* We need this otherwise fcntl locking fails. */
#define _FILE_OFFSET_BITS 64
#define _XOPEN_SOURCE 500
#include "../common/tdb_private.h"
/* Speed up the tests: setting TDB_NOSYNC removed recovery altogether. */
static inline int fake_fsync(int fd)
{
return 0;
}
#define fsync fake_fsync
#ifdef MS_SYNC
static inline int fake_msync(void *addr, size_t length, int flags)
{
return 0;
}
#define msync fake_msync
#endif
#include "../common/tdb_private.h"
#include "../common/io.c"
#include "../common/tdb.c"
#include "../common/lock.c"
#include "../common/freelist.c"
#include "../common/traverse.c"
#include "../common/transaction.c"
#include "../common/error.c"
#include "../common/open.c"
#include "../common/check.c"
#include "../common/hash.c"
#include "tap-interface.h"
#include <stdlib.h>
#include <err.h>
#include "logging.h"
static void write_record(struct tdb_context *tdb, size_t extra_len,
TDB_DATA *data)
{
TDB_DATA key;
key.dsize = strlen("hi");
key.dptr = (void *)"hi";
data->dsize += extra_len;
tdb_transaction_start(tdb);
tdb_store(tdb, key, *data, TDB_REPLACE);
tdb_transaction_commit(tdb);
}
int main(int argc, char *argv[])
{
struct tdb_context *tdb;
size_t i;
TDB_DATA data;
struct tdb_record rec;
tdb_off_t off;
plan_tests(4);
tdb = tdb_open_ex("run-transaction-expand.tdb",
1024, TDB_CLEAR_IF_FIRST,
O_CREAT|O_TRUNC|O_RDWR, 0600, &taplogctx, NULL);
ok1(tdb);
data.dsize = 0;
data.dptr = calloc(1000, getpagesize());
/* Simulate a slowly growing record. */
for (i = 0; i < 1000; i++)
write_record(tdb, getpagesize(), &data);
tdb_ofs_read(tdb, TDB_RECOVERY_HEAD, &off);
tdb_read(tdb, off, &rec, sizeof(rec), DOCONV());
diag("TDB size = %zu, recovery = %u-%u",
(size_t)tdb->map_size, off, off + sizeof(rec) + rec.rec_len);
/* We should only be about 5 times larger than largest record. */
ok1(tdb->map_size < 6 * i * getpagesize());
tdb_close(tdb);
tdb = tdb_open_ex("run-transaction-expand.tdb",
1024, TDB_CLEAR_IF_FIRST,
O_CREAT|O_TRUNC|O_RDWR, 0600, &taplogctx, NULL);
ok1(tdb);
data.dsize = 0;
/* Simulate a slowly growing record, repacking to keep
* recovery area at end. */
for (i = 0; i < 1000; i++) {
write_record(tdb, getpagesize(), &data);
if (i % 10 == 0)
tdb_repack(tdb);
}
tdb_ofs_read(tdb, TDB_RECOVERY_HEAD, &off);
tdb_read(tdb, off, &rec, sizeof(rec), DOCONV());
diag("TDB size = %zu, recovery = %u-%u",
(size_t)tdb->map_size, off, off + sizeof(rec) + rec.rec_len);
/* We should only be about 4 times larger than largest record. */
ok1(tdb->map_size < 5 * i * getpagesize());
tdb_close(tdb);
free(data.dptr);
return exit_status();
}
|
