tdb2: add TDB_RDONLY flag, allow setting/unsetting it.

[ccan] / ccan / tdb2 / test / run-92-get-set-readonly.c

diff --git a/ccan/tdb2/test/run-92-get-set-readonly.c b/ccan/tdb2/test/run-92-get-set-readonly.c
new file mode 100644 (file)
index 0000000..09a6010
--- /dev/null
+++ b/ccan/tdb2/test/run-92-get-set-readonly.c
@@ -0,0 +1,109 @@
+#include <ccan/tdb2/tdb.c>
+#include <ccan/tdb2/open.c>
+#include <ccan/tdb2/free.c>
+#include <ccan/tdb2/lock.c>
+#include <ccan/tdb2/io.c>
+#include <ccan/tdb2/hash.c>
+#include <ccan/tdb2/check.c>
+#include <ccan/tdb2/transaction.c>
+#include <ccan/tdb2/traverse.c>
+#include <ccan/tap/tap.h>
+#include "logging.h"
+
+int main(int argc, char *argv[])
+{
+       unsigned int i;
+       struct tdb_context *tdb;
+       struct tdb_data key = tdb_mkdata("key", 3);
+       struct tdb_data data = tdb_mkdata("data", 4);
+       int flags[] = { TDB_DEFAULT, TDB_NOMMAP,
+                       TDB_CONVERT, TDB_NOMMAP|TDB_CONVERT };
+
+       plan_tests(sizeof(flags) / sizeof(flags[0]) * 48);
+
+       for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+               /* RW -> R0 */
+               tdb = tdb_open("run-92-get-set-readonly.tdb", flags[i],
+                              O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+               ok1(tdb);
+               ok1(!(tdb_get_flags(tdb) & TDB_RDONLY));
+
+               ok1(tdb_store(tdb, key, data, TDB_INSERT) == TDB_SUCCESS);
+
+               tdb_add_flag(tdb, TDB_RDONLY);
+               ok1(tdb_get_flags(tdb) & TDB_RDONLY);
+
+               /* Can't store, append, delete. */
+               ok1(tdb_store(tdb, key, data, TDB_MODIFY) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 1);
+               ok1(tdb_append(tdb, key, data) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 2);
+               ok1(tdb_delete(tdb, key) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 3);
+
+               /* Can't start a transaction, or any write lock. */
+               ok1(tdb_transaction_start(tdb) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 4);
+               ok1(tdb_chainlock(tdb, key) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 5);
+               ok1(tdb_lockall(tdb) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 6);
+               ok1(tdb_wipe_all(tdb) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 7);
+
+               /* Back to RW. */
+               tdb_remove_flag(tdb, TDB_RDONLY);
+               ok1(!(tdb_get_flags(tdb) & TDB_RDONLY));
+
+               ok1(tdb_store(tdb, key, data, TDB_MODIFY) == TDB_SUCCESS);
+               ok1(tdb_append(tdb, key, data) == TDB_SUCCESS);
+               ok1(tdb_delete(tdb, key) == TDB_SUCCESS);
+
+               ok1(tdb_transaction_start(tdb) == TDB_SUCCESS);
+               ok1(tdb_store(tdb, key, data, TDB_INSERT) == TDB_SUCCESS);
+               ok1(tdb_transaction_commit(tdb) == TDB_SUCCESS);
+
+               ok1(tdb_chainlock(tdb, key) == TDB_SUCCESS);
+               tdb_chainunlock(tdb, key);
+               ok1(tdb_lockall(tdb) == TDB_SUCCESS);
+               tdb_unlockall(tdb);
+               ok1(tdb_wipe_all(tdb) == TDB_SUCCESS);
+               ok1(tap_log_messages == 7);
+
+               tdb_close(tdb);
+
+               /* R0 -> RW */
+               tdb = tdb_open("run-92-get-set-readonly.tdb", flags[i],
+                              O_RDONLY, 0600, &tap_log_attr);
+               ok1(tdb);
+               ok1(tdb_get_flags(tdb) & TDB_RDONLY);
+
+               /* Can't store, append, delete. */
+               ok1(tdb_store(tdb, key, data, TDB_INSERT) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 8);
+               ok1(tdb_append(tdb, key, data) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 9);
+               ok1(tdb_delete(tdb, key) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 10);
+
+               /* Can't start a transaction, or any write lock. */
+               ok1(tdb_transaction_start(tdb) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 11);
+               ok1(tdb_chainlock(tdb, key) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 12);
+               ok1(tdb_lockall(tdb) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 13);
+               ok1(tdb_wipe_all(tdb) == TDB_ERR_RDONLY);
+               ok1(tap_log_messages == 14);
+
+               /* Can't remove TDB_RDONLY since we opened with O_RDONLY */
+               tdb_remove_flag(tdb, TDB_RDONLY);
+               ok1(tap_log_messages == 15);
+               ok1(tdb_get_flags(tdb) & TDB_RDONLY);
+               tdb_close(tdb);
+
+               ok1(tap_log_messages == 15);
+               tap_log_messages = 0;
+       }
+       return exit_status();
+}