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

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

1 files changed, 58 insertions, 0 deletions

diff --git a/lib/tdb2/test/run-12-store.c b/lib/tdb2/test/run-12-store.c
new file mode 100644
index 0000000000..ba2e4f8971
--- /dev/null
+++ b/lib/tdb2/test/run-12-store.c
@@ -0,0 +1,58 @@
+#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 "logging.h"
+
+/* We use the same seed which we saw a failure on. */
+static uint64_t fixedhash(const void *key, size_t len, uint64_t seed, void *p)
+{
+	return hash64_stable((const unsigned char *)key, len,
+			     *(uint64_t *)p);
+}
+
+int main(int argc, char *argv[])
+{
+	unsigned int i, j;
+	struct tdb_context *tdb;
+	uint64_t seed = 16014841315512641303ULL;
+	union tdb_attribute fixed_hattr
+		= { .hash = { .base = { TDB_ATTRIBUTE_HASH },
+			      .fn = fixedhash,
+			      .data = &seed } };
+	int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
+			TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
+			TDB_NOMMAP|TDB_CONVERT };
+	struct tdb_data key = { (unsigned char *)&j, sizeof(j) };
+	struct tdb_data data = { (unsigned char *)&j, sizeof(j) };
+
+	fixed_hattr.base.next = &tap_log_attr;
+
+	plan_tests(sizeof(flags) / sizeof(flags[0]) * (1 + 500 * 3) + 1);
+	for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+		tdb = tdb_open("run-12-store.tdb", flags[i],
+			       O_RDWR|O_CREAT|O_TRUNC, 0600, &fixed_hattr);
+		ok1(tdb);
+		if (!tdb)
+			continue;
+
+		/* We seemed to lose some keys.
+		 * Insert and check they're in there! */
+		for (j = 0; j < 500; j++) {
+			struct tdb_data d = { NULL, 0 }; /* Bogus GCC warning */
+			ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
+			ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
+			ok1(tdb_deq(d, data));
+			free(d.dptr);
+		}
+		tdb_close(tdb);
+	}
+
+	ok1(tap_log_messages == 0);
+	return exit_status();
+}