key.dsize = strlen("hi");
key.dptr = (void *)"hi";
- data->dptr = realloc(data->dptr, data->dsize + extra_len);
- memset(data->dptr + data->dsize, 'x', extra_len);
data->dsize += extra_len;
tdb_transaction_start(tdb);
tdb_store(tdb, key, *data, TDB_REPLACE);
tdb_transaction_commit(tdb);
- diag("TDB size = %zu", (size_t)tdb->map_size);
}
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(2);
+ 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 = NULL;
+ data.dptr = calloc(1000, getpagesize());
/* Simulate a slowly growing record. */
for (i = 0; i < 1000; i++)
write_record(tdb, getpagesize(), &data);
- /* We should only be about 3 times larger than largest record. */
- ok1(tdb->map_size < 3 * i * getpagesize());
+ 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);