Struct LayeredFsBuilder 

pub struct LayeredFsBuilder { /* private fields */ }

FileSystem builder that allows a set of auxiliary FileSystems to be mounted at specified paths relative to the base filesystem, regardless of whether the base filesystem has directories at those paths, that may be mounted-onto.

Auxiliary FileSystems and their mount paths are provided via calls to add(), and the layered filesystem created using build().

Implementations

impl LayeredFsBuilder

pub fn new(root_fs: FileSystemHandle) -> Self

Returns a LayeredFsBuilder with root_fs as the underlying base filesystem.

pub fn add(&mut self, path: &str, fs: FileSystemHandle)

Specifies that filesystem fs should be mounted at the specified path relative to the base filesystem.

path must specify an absolute path under the base filesystem (i.e. starting with “/”). If path has multiple components then intermediate components must already have been added to the builder.

pub fn build<L>( self, locked: &mut Locked<L>, kernel: &Kernel, ) -> (FileSystemHandle, LayeredFsMounts)

where L: LockEqualOrBefore<FileOpsCore>,

Returns the new FileSystem handle, and a finalization callback that must be invoked to set up the subordinate mount points.

The underlying base FileSystem will be returned directly if no sub-mounts were specified via add(). Otherwise a LayeredFs instance will be returned, to provide stub directory entries for the sub-mounts to be mounted onto.