tdb2: tdb_lockall() and tdb_lockall_read() support.

[ccan] / ccan / tdb2 / test / run-lockall.c

diff --git a/ccan/tdb2/test/run-lockall.c b/ccan/tdb2/test/run-lockall.c
new file mode 100644 (file)
index 0000000..4aedf59
--- /dev/null
+++ b/ccan/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();
+}