If anyone interested to see some real-world open-source FUSE example (but written in C), take a look at our project RioFS: (https://github.com/skoobe/riofs http

If anyone interested to see some real-world open-source FUSE example (but written in C), take a look at our project RioFS: (https://github.com/skoobe/riofs https://github.com/skoobe/riofs): an userspace filesystem for Amazon S3 buckets that runs on Linux and MacOSX (FreeBSD support is comming as well).