Manage the large blocks to ensure that they do not overflow when the ratio of large data to small data is high

git-svn-id: http://hxcpp.googlecode.com/svn/trunk@630 d391954c-4287-11de-baa7-5503b21fc9cb
Manage the large blocks to ensure that they do not overflow when the ratio of large data to small data is high

git-svn-id: http://hxcpp.googlecode.com/svn/trunk@631 d391954c-4287-11de-baa7-5503b21fc9cb