cms-sw/cmssw — pull request #2230 by Dr15Jones (2014-01-29 16:40:49+00:00)
Title: Use ROOT’s Cint Mutex to protect access to CINT structures

When requested to load a dictionary, we have to manipulate some Cint data structures to say what file it comes from. When used in a threaded environment, ROOT requires a lock be taken before accessing these structures.