Method inlineable

bucket.go:806–828

inlineable returns true if a bucket is small enough to be written inline and if it contains no subbuckets. Otherwise, returns false.

()

// inlineable returns true if a bucket is small enough to be written inline
// and if it contains no subbuckets. Otherwise, returns false.
func (b *Bucket) inlineable() bool {
	var n = b.rootNode

	// Bucket must only contain a single leaf node.
	if n == nil || !n.isLeaf {
		return false
	}

	// Bucket is not inlineable if it contains subbuckets or if it goes beyond
	// our threshold for inline bucket size.
	var size = common.PageHeaderSize
	for _, inode := range n.inodes {
		size += common.LeafPageElementSize + uintptr(len(inode.Key())) + uintptr(len(inode.Value()))

		if inode.Flags()&common.BucketLeafFlag != 0 {
			return false
		} else if size > b.maxInlineBucketSize() {
			return false
		}
	}

	return true
}

// Returns the maximum total size of a bucket to make it a candidate for inlining.
func (b *Bucket) maxInlineBucketSize() uintptr {