Continuous integration

[ChrisF]

A follow up question.

I do a full build (check out everything, build everything) at 1:00am every day. I want the full build to happen at exactly the same time everyday. If that build passes, I just want to do incremental builds subsequently for the remainder of the day. Then the cycle repeats daily.

How can I ensure that the incremental builds do not overlap with the full build? In other words, it's conceivable that an incremental build starts at 11:59pm and run for 1.5 hours.