Fix early transaction unlock when traverse done inside transaction.

[ccan] / ccan / tdb / test / run-traverse-in-transaction.c

diff --git a/ccan/tdb/test/run-traverse-in-transaction.c b/ccan/tdb/test/run-traverse-in-transaction.c
new file mode 100644 (file)
index 0000000..b184474
--- /dev/null
+++ b/ccan/tdb/test/run-traverse-in-transaction.c
@@ -0,0 +1,70 @@
+#define _XOPEN_SOURCE 500
+#include "tdb/tdb.h"
+#include "tdb/io.c"
+#include "tdb/tdb.c"
+#include "tdb/lock.c"
+#include "tdb/freelist.c"
+#include "tdb/traverse.c"
+#include "tdb/transaction.c"
+#include "tdb/error.c"
+#include "tdb/open.c"
+#include "tap/tap.h"
+#include <stdlib.h>
+#include <stdbool.h>
+#include <err.h>
+
+static bool correct_key(TDB_DATA key)
+{
+       return key.dsize == strlen("hi")
+               && memcmp(key.dptr, "hi", key.dsize) == 0;
+}
+
+static bool correct_data(TDB_DATA data)
+{
+       return data.dsize == strlen("world")
+               && memcmp(data.dptr, "world", data.dsize) == 0;
+}
+
+static int traverse(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data,
+                    void *p)
+{
+       ok1(correct_key(key));
+       ok1(correct_data(data));
+       return 0;
+}
+
+int main(int argc, char *argv[])
+{
+       struct tdb_context *tdb;
+       TDB_DATA key, data;
+
+       plan_tests(12);
+       tdb = tdb_open("/tmp/test.tdb", 1024, TDB_CLEAR_IF_FIRST,
+                      O_CREAT|O_TRUNC|O_RDWR, 0600);
+       ok1(tdb);
+
+       /* Tickle bug on appending zero length buffer to zero length buffer. */
+       key.dsize = strlen("hi");
+       key.dptr = (void *)"hi";
+       data.dptr = (void *)"world";
+       data.dsize = strlen("world");
+
+       ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
+
+       ok1(tdb_transaction_start(tdb) == 0);
+       ok(tdb->have_transaction_lock, "Transaction lock in transaction");
+       tdb_traverse(tdb, traverse, NULL);
+
+       /* That should *not* release the transaction lock! */
+       ok(tdb->have_transaction_lock, "Transaction lock after traverse");
+       tdb_traverse_read(tdb, traverse, NULL);
+
+       /* That should *not* release the transaction lock! */
+       ok(tdb->have_transaction_lock, "Transaction lock after traverse_read");
+       ok1(tdb_transaction_commit(tdb) == 0);
+       ok(!tdb->have_transaction_lock, "Transaction unlock");
+
+       tdb_close(tdb);
+
+       return exit_status();
+}