kazuho/Starlet — pull request #15 by ttakezawa (2014-04-13 19:25:12+00:00)
Title: Fix thundering-herd problem with exclusive lock

This pull-req is correspond to #14

I find that managing a temporary file is a little hard.
- reopening of the file in a child process for `flock(2)`
- cleanup of the file before the master process exits

Therefore, I used `pipe(2)` for exclusive lock. How about it?