summaryrefslogtreecommitdiffstats
path: root/lib/tdb/test/run-no-lock-during-traverse.c
blob: 737a32f11151cedf475c310be0c5881dd9c5ac16 (plain)
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
107
108
109
110
111
112
113
114
#include "../common/tdb_private.h"
#include "lock-tracking.h"

#define fcntl fcntl_with_lockcheck

#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 "../common/mutex.c"
#include "tap-interface.h"
#include <stdlib.h>
#include "logging.h"

#undef fcntl

#define NUM_ENTRIES 10

static bool prepare_entries(struct tdb_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 = discard_const_p(uint8_t, "world");

		if (tdb_store(tdb, key, data, 0) != 0)
			return false;
	}
	return true;
}

static void delete_entries(struct tdb_context *tdb)
{
	unsigned int i;
	TDB_DATA key;

	for (i = 0; i < NUM_ENTRIES; i++) {
		key.dsize = sizeof(i);
		key.dptr = (void *)&i;

		ok1(tdb_delete(tdb, key) == 0);
	}
}

/* We don't know how many times this will run. */
static int delete_other(struct tdb_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 (tdb_delete(tdb, key) != 0)
		(*(int *)private_data)++;
	return 0;
}

static int delete_self(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data,
			void *private_data)
{
	ok1(tdb_delete(tdb, key) == 0);
	return 0;
}

int main(int argc, char *argv[])
{
	struct tdb_context *tdb;
	int errors = 0;

	plan_tests(41);
	tdb = tdb_open_ex("run-no-lock-during-traverse.tdb",
			  1024, TDB_CLEAR_IF_FIRST, O_CREAT|O_TRUNC|O_RDWR,
			  0600, &taplogctx, NULL);

	ok1(tdb);
	ok1(prepare_entries(tdb));
	ok1(locking_errors == 0);
	ok1(tdb_lockall(tdb) == 0);
	ok1(locking_errors == 0);
	tdb_traverse(tdb, delete_other, &errors);
	ok1(errors == 0);
	ok1(locking_errors == 0);
	ok1(tdb_unlockall(tdb) == 0);

	ok1(prepare_entries(tdb));
	ok1(locking_errors == 0);
	ok1(tdb_lockall(tdb) == 0);
	ok1(locking_errors == 0);
	tdb_traverse(tdb, delete_self, NULL);
	ok1(locking_errors == 0);
	ok1(tdb_unlockall(tdb) == 0);

	ok1(prepare_entries(tdb));
	ok1(locking_errors == 0);
	ok1(tdb_lockall(tdb) == 0);
	ok1(locking_errors == 0);
	delete_entries(tdb);
	ok1(locking_errors == 0);
	ok1(tdb_unlockall(tdb) == 0);

	ok1(tdb_close(tdb) == 0);

	return exit_status();
}