Filesystem framework

The filesystem support in JNode is split up into a generic part and a filesystem specific part. The role of the generic part is:

1. Keep track of all mounted filesystems.
2. Map between path names are filesystem entries.
3. Share filesystem entries between various threads/processes.

The role of the filesystem specific part is:

1. Store and retrieve files.
2. Store and retrieve directories.

We should be more specific about what a filesystem is. JNode makes a distinction the a FileSystemType and a FileSystem. A FileSystemType has a name, can detect filesystems of its own type on a device and can create FileSystem instances for a specific device (usually a disk). A FileSystem implements storing/retrieving files and directories.

To access files in JNode, use the regular classes in the java.io package. They are connected to the JNode filesystem implementation. A direct connection to the filesystem implementation is not allowed.