ntdb: next-generation trivial key-value database

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

diff --git a/ccan/ntdb/test/run-lockall.c b/ccan/ntdb/test/run-lockall.c
new file mode 100644 (file)
index 0000000..5ec448c
--- /dev/null
+++ b/ccan/ntdb/test/run-lockall.c
@@ -0,0 +1,74 @@
+#include "private.h"
+#include <unistd.h>
+#include "lock-tracking.h"
+
+#define fcntl fcntl_with_lockcheck
+#include "ntdb-source.h"
+
+#include "tap-interface.h"
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include "external-agent.h"
+#include "logging.h"
+
+#define TEST_DBNAME "run-lockall.ntdb"
+#define KEY_STR "key"
+
+#undef fcntl
+
+int main(int argc, char *argv[])
+{
+       struct agent *agent;
+       int flags[] = { NTDB_DEFAULT, NTDB_NOMMAP,
+                       NTDB_CONVERT, NTDB_NOMMAP|NTDB_CONVERT };
+       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 ntdb_context *ntdb;
+
+               ntdb = ntdb_open(TEST_DBNAME, flags[i]|MAYBE_NOSYNC,
+                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+               ok1(ntdb);
+
+               ret = external_agent_operation(agent, OPEN, TEST_DBNAME);
+               ok1(ret == SUCCESS);
+
+               ok1(ntdb_lockall(ntdb) == NTDB_SUCCESS);
+               ok1(external_agent_operation(agent, STORE, KEY_STR "=" KEY_STR)
+                   == WOULD_HAVE_BLOCKED);
+               ok1(external_agent_operation(agent, FETCH, KEY_STR "=" KEY_STR)
+                   == WOULD_HAVE_BLOCKED);
+               /* Test nesting. */
+               ok1(ntdb_lockall(ntdb) == NTDB_SUCCESS);
+               ntdb_unlockall(ntdb);
+               ntdb_unlockall(ntdb);
+
+               ok1(external_agent_operation(agent, STORE, KEY_STR "=" KEY_STR)
+                   == SUCCESS);
+
+               ok1(ntdb_lockall_read(ntdb) == NTDB_SUCCESS);
+               ok1(external_agent_operation(agent, STORE, KEY_STR "=" KEY_STR)
+                   == WOULD_HAVE_BLOCKED);
+               ok1(external_agent_operation(agent, FETCH, KEY_STR "=" KEY_STR)
+                   == SUCCESS);
+               ok1(ntdb_lockall_read(ntdb) == NTDB_SUCCESS);
+               ntdb_unlockall_read(ntdb);
+               ntdb_unlockall_read(ntdb);
+
+               ok1(external_agent_operation(agent, STORE, KEY_STR "=" KEY_STR)
+                   == SUCCESS);
+               ok1(external_agent_operation(agent, CLOSE, NULL) == SUCCESS);
+               ntdb_close(ntdb);
+       }
+
+       free_external_agent(agent);
+       ok1(tap_log_messages == 0);
+       return exit_status();
+}