tdb2: remove tailer

[ccan] / ccan / tdb2 / test / run-01-zones.c

diff --git a/ccan/tdb2/test/run-01-zones.c b/ccan/tdb2/test/run-01-zones.c
new file mode 100644 (file)
index 0000000..405bd45
--- /dev/null
+++ b/ccan/tdb2/test/run-01-zones.c
@@ -0,0 +1,62 @@
+#include <ccan/tdb2/tdb.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/tap/tap.h>
+#include "logging.h"
+#include "layout.h"
+
+/* Calculate start of zone offset from layout directly. */
+static tdb_off_t layout_zone_off(tdb_off_t off, struct tdb_layout *layout)
+{
+       unsigned int i;
+
+       /* Every second one is a free entry, so divide by 2 to get zone */
+       for (i = 0; i < layout->num_elems; i++) {
+               if (layout->elem[i].base.type != ZONE)
+                       continue;
+               if (layout->elem[i].base.off
+                   + (1ULL << layout->elem[i].zone.zone_bits) > off)
+                       return layout->elem[i].base.off;
+       }
+       abort();
+}
+
+int main(int argc, char *argv[])
+{
+       struct tdb_context *tdb;
+       struct tdb_layout *layout;
+       struct free_zone_header zhdr;
+       tdb_off_t off, step;
+       unsigned int i;
+
+       /* FIXME: Test TDB_CONVERT */
+
+       plan_tests(3 + 100);
+
+       /* No coalescing can be done due to EOF */
+       layout = new_tdb_layout(NULL);
+       tdb_layout_add_zone(layout, INITIAL_ZONE_BITS, false);
+       tdb_layout_add_zone(layout, INITIAL_ZONE_BITS, true);
+       tdb_layout_add_zone(layout, INITIAL_ZONE_BITS+1, true);
+       tdb_layout_add_zone(layout, INITIAL_ZONE_BITS+2, true);
+       tdb_layout_add_zone(layout, INITIAL_ZONE_BITS+2, true);
+       tdb = tdb_layout_get(layout);
+
+       ok1(tdb_check(tdb, NULL, NULL) == 0);
+
+       /* Last zone should get right zone. */
+       ok1(last_zone(tdb, &zhdr)
+           == layout->elem[layout->num_elems-1].base.off);
+       ok1(zhdr.zone_bits == INITIAL_ZONE_BITS+2);
+
+       off = sizeof(struct tdb_header);
+       step = (tdb->map_size - 1 - off) / 100;
+       for (i = 0; i < 100; i++, off += step) {
+               ok1(off_to_zone(tdb, off, &zhdr) == layout_zone_off(off, layout));
+       }
+
+       return exit_status();
+}