1 /* We need this otherwise fcntl locking fails. */
2 #define _FILE_OFFSET_BITS 64
3 #define _XOPEN_SOURCE 500
4 #include <ccan/tdb/tdb.h>
5 #include <ccan/tdb/io.c>
6 #include <ccan/tdb/tdb.c>
7 #include <ccan/tdb/lock.c>
8 #include <ccan/tdb/freelist.c>
9 #include <ccan/tdb/traverse.c>
10 #include <ccan/tdb/transaction.c>
11 #include <ccan/tdb/error.c>
12 #include <ccan/tdb/open.c>
13 #include <ccan/tdb/check.c>
14 #include <ccan/tap/tap.h>
19 static int tdb_expand_file_sparse(struct tdb_context *tdb,
23 if (tdb->read_only || tdb->traverse_read) {
24 tdb->ecode = TDB_ERR_RDONLY;
28 if (ftruncate(tdb->fd, size+addition) == -1) {
30 ssize_t written = pwrite(tdb->fd, &b, 1, (size+addition) - 1);
32 /* try once more, potentially revealing errno */
33 written = pwrite(tdb->fd, &b, 1, (size+addition) - 1);
36 /* again - give up, guessing errno */
40 TDB_LOG((tdb, TDB_DEBUG_FATAL, "expand_file to %d failed (%s)\n",
41 size+addition, strerror(errno)));
49 static const struct tdb_methods large_io_methods = {
54 tdb_expand_file_sparse
57 static int test_traverse(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data,
60 TDB_DATA *expect = _data;
61 ok1(key.dsize == strlen("hi"));
62 ok1(memcmp(key.dptr, "hi", strlen("hi")) == 0);
63 ok1(data.dsize == expect->dsize);
64 ok1(memcmp(data.dptr, expect->dptr, data.dsize) == 0);
68 int main(int argc, char *argv[])
70 struct tdb_context *tdb;
71 TDB_DATA key, orig_data, data;
74 struct tdb_record rec;
77 tdb = tdb_open_ex("run-36-file.tdb", 1024, TDB_CLEAR_IF_FIRST,
78 O_CREAT|O_TRUNC|O_RDWR, 0600, &taplogctx, NULL);
81 tdb->methods = &large_io_methods;
83 /* Enlarge the file (internally multiplies by 100). */
84 ok1(tdb_expand(tdb, 30000000) == 0);
86 /* Put an entry in, and check it. */
87 key.dsize = strlen("hi");
88 key.dptr = (void *)"hi";
89 orig_data.dsize = strlen("world");
90 orig_data.dptr = (void *)"world";
92 ok1(tdb_store(tdb, key, orig_data, TDB_INSERT) == 0);
94 data = tdb_fetch(tdb, key);
95 ok1(data.dsize == strlen("world"));
96 ok1(memcmp(data.dptr, "world", strlen("world")) == 0);
99 /* That currently fills at the end, make sure that's true. */
100 hash = tdb->hash_fn(&key);
101 rec_ptr = tdb_find_lock_hash(tdb, key, hash, F_RDLCK, &rec);
103 ok1(rec_ptr > 2U*1024*1024*1024);
104 tdb_unlock(tdb, BUCKET(rec.full_hash), F_RDLCK);
106 /* Traverse must work. */
107 ok1(tdb_traverse(tdb, test_traverse, &orig_data) == 1);
109 /* Delete should work. */
110 ok1(tdb_delete(tdb, key) == 0);
112 ok1(tdb_traverse(tdb, test_traverse, NULL) == 0);
114 /* Transactions should work. */
115 ok1(tdb_transaction_start(tdb) == 0);
116 ok1(tdb_store(tdb, key, orig_data, TDB_INSERT) == 0);
118 data = tdb_fetch(tdb, key);
119 ok1(data.dsize == strlen("world"));
120 ok1(memcmp(data.dptr, "world", strlen("world")) == 0);
122 ok1(tdb_transaction_commit(tdb) == 0);
124 ok1(tdb_traverse(tdb, test_traverse, &orig_data) == 1);
127 return exit_status();