tdb2: add lib/tdb2 (from CCAN init-1161-g661d41f)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 80 insertions, 0 deletions

diff --git a/lib/tdb2/test/run-lockall.c b/lib/tdb2/test/run-lockall.c
new file mode 100644
index 0000000000..4aedf59743
--- /dev/null
+++ b/lib/tdb2/test/run-lockall.c
@@ -0,0 +1,80 @@
+#include "config.h"
+#include <unistd.h>
+#include "lock-tracking.h"
+
+#define fcntl fcntl_with_lockcheck
+
+#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/tap/tap.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <err.h>
+#include "external-agent.h"
+#include "logging.h"
+
+#define TEST_DBNAME "run-lockall.tdb"
+
+#undef fcntl
+
+int main(int argc, char *argv[])
+{
+	struct agent *agent;
+	const int flags[] = { TDB_DEFAULT,
+			      TDB_NOMMAP,
+			      TDB_CONVERT,
+			      TDB_CONVERT | TDB_NOMMAP };
+	int i;
+
+	plan_tests(13 * sizeof(flags)/sizeof(flags[0]) + 1);
+	agent = prepare_external_agent();
+	if (!agent)
+		err(1, "preparing agent");
+
+	for (i = 0; i < sizeof(flags)/sizeof(flags[0]); i++) {
+		enum agent_return ret;
+		struct tdb_context *tdb;
+
+		tdb = tdb_open(TEST_DBNAME, flags[i],
+			       O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+		ok1(tdb);
+
+		ret = external_agent_operation(agent, OPEN, TEST_DBNAME);
+		ok1(ret == SUCCESS);
+
+		ok1(tdb_lockall(tdb) == TDB_SUCCESS);
+		ok1(external_agent_operation(agent, STORE, "key")
+		    == WOULD_HAVE_BLOCKED);
+		ok1(external_agent_operation(agent, FETCH, "key")
+		    == WOULD_HAVE_BLOCKED);
+		/* Test nesting. */
+		ok1(tdb_lockall(tdb) == TDB_SUCCESS);
+		tdb_unlockall(tdb);
+		tdb_unlockall(tdb);
+
+		ok1(external_agent_operation(agent, STORE, "key") == SUCCESS);
+
+		ok1(tdb_lockall_read(tdb) == TDB_SUCCESS);
+		ok1(external_agent_operation(agent, STORE, "key")
+		    == WOULD_HAVE_BLOCKED);
+		ok1(external_agent_operation(agent, FETCH, "key") == SUCCESS);
+		ok1(tdb_lockall_read(tdb) == TDB_SUCCESS);
+		tdb_unlockall_read(tdb);
+		tdb_unlockall_read(tdb);
+
+		ok1(external_agent_operation(agent, STORE, "key") == SUCCESS);
+		ok1(external_agent_operation(agent, CLOSE, NULL) == SUCCESS);
+		tdb_close(tdb);
+	}
+
+	free_external_agent(agent);
+	ok1(tap_log_messages == 0);
+	return exit_status();
+}