Using C++ Boost memory mapped files to create disk-back data structures

I have been looking into using Boost.Interprocess to create a disk-backed data structure. The examples on Boost Documentation (http://www.boost.org/doc/libs/1_41_0/doc/html/interprocess.html) are all for using shared memory even though they mention that memory mapped files can also be used. I am wondering whe开发者_如何学运维ther anyone here has used memory mapped files? Any publicly available code samples to get started (say, a memory mapped file backed map or set)?

You might take look at stldb project that's being actively discussed on boost mail list. It tries to build an ACID database on top of boost::interprocess.