Add nested buckets.

This commit adds the ability to create buckets inside of other buckets.
It also replaces the buckets page with a root bucket.

Fixes #56.

1 files changed, 4 insertions, 3 deletions

diff --git a/page.go b/page.go
index 0d46f09..56cf064 100644
--- a/page.go
+++ b/page.go
@@ -19,10 +19,13 @@ const (
 	branchPageFlag   = 0x01
 	leafPageFlag     = 0x02
 	metaPageFlag     = 0x04
-	bucketsPageFlag  = 0x08
 	freelistPageFlag = 0x10
 )
 
+const (
+	bucketLeafFlag = 0x01
+)
+
 type pgid uint64
 
 type page struct {
@@ -41,8 +44,6 @@ func (p *page) typ() string {
 		return "leaf"
 	} else if (p.flags & metaPageFlag) != 0 {
 		return "meta"
-	} else if (p.flags & bucketsPageFlag) != 0 {
-		return "buckets"
 	} else if (p.flags & freelistPageFlag) != 0 {
 		return "freelist"
 	}