Overlay filesystem type selection in reserved space. More...

Functions
Value< void >	write (fs::path const &path_file_binary, OverlayType const &overlay)
	Writes a overlay mask to the flatimage binary.

Value< OverlayType >	read (fs::path const &path_file_binary)
	Read the overlay mask from the flatimage binary.

Detailed Description

Overlay filesystem type selection in reserved space.

This namespace manages the overlay filesystem type stored as a single-byte mask in the binary's reserved space. It allows selection between different overlay implementations: BWRAP (bubblewrap native), OVERLAYFS (fuse-overlayfs), and UNIONFS (unionfs-fuse). The overlay type determines how the writable layer is merged with read-only base layers to create the final root filesystem.

Function Documentation

◆ read()

Value< OverlayType > ns_reserved::ns_overlay::read ( fs::path const & path_file_binary )

inline

Read the overlay mask from the flatimage binary.

Parameters

path_file_binary Path to the flatimage binary

Returns: On success, returns the type of overlay currently in use. Or the respective error.

Definition at line 72 of file overlay.hpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ write()

Value< void > ns_reserved::ns_overlay::write	(	fs::path const &	path_file_binary,
		OverlayType const &	overlay )