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
|
#include <ccan/tdb2/private.h>
#include <unistd.h>
#include "tdb1-lock-tracking.h"
#define fcntl fcntl_with_lockcheck1
#include "tdb2-source.h"
#include <ccan/tap/tap.h>
#include <stdlib.h>
#include <err.h>
#include "tdb1-logging.h"
#undef fcntl
#define NUM_ENTRIES 10
static bool prepare_entries(struct tdb1_context *tdb)
{
unsigned int i;
TDB_DATA key, data;
for (i = 0; i < NUM_ENTRIES; i++) {
key.dsize = sizeof(i);
key.dptr = (void *)&i;
data.dsize = strlen("world");
data.dptr = (void *)"world";
if (tdb1_store(tdb, key, data, 0) != 0)
return false;
}
return true;
}
static void delete_entries(struct tdb1_context *tdb)
{
unsigned int i;
TDB_DATA key;
for (i = 0; i < NUM_ENTRIES; i++) {
key.dsize = sizeof(i);
key.dptr = (void *)&i;
ok1(tdb1_delete(tdb, key) == 0);
}
}
/* We don't know how many times this will run. */
static int delete_other(struct tdb1_context *tdb, TDB_DATA key, TDB_DATA data,
void *private_data)
{
unsigned int i;
memcpy(&i, key.dptr, 4);
i = (i + 1) % NUM_ENTRIES;
key.dptr = (void *)&i;
if (tdb1_delete(tdb, key) != 0)
(*(int *)private_data)++;
return 0;
}
static int delete_self(struct tdb1_context *tdb, TDB_DATA key, TDB_DATA data,
void *private_data)
{
ok1(tdb1_delete(tdb, key) == 0);
return 0;
}
int main(int argc, char *argv[])
{
struct tdb1_context *tdb;
int errors = 0;
plan_tests(41);
tdb = tdb1_open_ex("run-no-lock-during-traverse.tdb",
1024, TDB_DEFAULT, O_CREAT|O_TRUNC|O_RDWR,
0600, &taplogctx, NULL);
ok1(tdb);
ok1(prepare_entries(tdb));
ok1(locking_errors1 == 0);
ok1(tdb1_lockall(tdb) == 0);
ok1(locking_errors1 == 0);
tdb1_traverse(tdb, delete_other, &errors);
ok1(errors == 0);
ok1(locking_errors1 == 0);
ok1(tdb1_unlockall(tdb) == 0);
ok1(prepare_entries(tdb));
ok1(locking_errors1 == 0);
ok1(tdb1_lockall(tdb) == 0);
ok1(locking_errors1 == 0);
tdb1_traverse(tdb, delete_self, NULL);
ok1(locking_errors1 == 0);
ok1(tdb1_unlockall(tdb) == 0);
ok1(prepare_entries(tdb));
ok1(locking_errors1 == 0);
ok1(tdb1_lockall(tdb) == 0);
ok1(locking_errors1 == 0);
delete_entries(tdb);
ok1(locking_errors1 == 0);
ok1(tdb1_unlockall(tdb) == 0);
ok1(tdb1_close(tdb) == 0);
return exit_status();
}
|
