tdb: put example hashes into header, so we notice incorrect hash_fn.

[ccan] / ccan / tdb / test / run-rwlock-check.c

diff --git a/ccan/tdb/test/run-rwlock-check.c b/ccan/tdb/test/run-rwlock-check.c
new file mode 100644 (file)
index 0000000..1f742f4
--- /dev/null
+++ b/ccan/tdb/test/run-rwlock-check.c
@@ -0,0 +1,47 @@
+#define _XOPEN_SOURCE 500
+#include <ccan/tdb/tdb.h>
+#include <ccan/tdb/io.c>
+#include <ccan/tdb/tdb.c>
+#include <ccan/tdb/lock.c>
+#include <ccan/tdb/freelist.c>
+#include <ccan/tdb/traverse.c>
+#include <ccan/tdb/transaction.c>
+#include <ccan/tdb/error.c>
+#include <ccan/tdb/open.c>
+#include <ccan/tdb/check.c>
+#include <ccan/hash/hash.h>
+#include <ccan/tap/tap.h>
+#include <stdlib.h>
+#include <err.h>
+
+static void log_fn(struct tdb_context *tdb, enum tdb_debug_level level, const char *fmt, ...)
+{
+       unsigned int *count = tdb_get_logging_private(tdb);
+       if (strstr(fmt, "spinlocks"))
+               (*count)++;
+}
+
+/* The code should barf on TDBs created with rwlocks. */
+int main(int argc, char *argv[])
+{
+       struct tdb_context *tdb;
+       unsigned int log_count;
+       struct tdb_logging_context log_ctx = { log_fn, &log_count };
+
+       plan_tests(4);
+
+       /* We should fail to open rwlock-using tdbs of either endian. */
+       log_count = 0;
+       tdb = tdb_open_ex("test/rwlock-le.tdb", 0, 0, O_RDWR, 0,
+                         &log_ctx, NULL);
+       ok1(!tdb);
+       ok1(log_count == 1);
+
+       log_count = 0;
+       tdb = tdb_open_ex("test/rwlock-be.tdb", 0, 0, O_RDWR, 0,
+                         &log_ctx, NULL);
+       ok1(!tdb);
+       ok1(log_count == 1);
+
+       return exit_status();
+}