* buckets and @skip_chain entries. For each entry in the table call
* @callback, if @callback returns a negative value stop 'walking' through the
* table and return. Updates the values in @skip_bkt and @skip_chain on
* buckets and @skip_chain entries. For each entry in the table call
* @callback, if @callback returns a negative value stop 'walking' through the
* table and return. Updates the values in @skip_bkt and @skip_chain on