K 10
svn:author
V 7
davidxu
K 8
svn:date
V 27
2013-02-17T02:52:42.354361Z
K 7
svn:log
V 215
Make more code be protected by internal mutex, and now it is fork-safe, in
error case, the file exclusive lock is now released as soon as possible,
in previous code, child process can still hold the exclusive lock.

END