Struct CowHandle 

pub struct CowHandle {
    pub dm_name: String,
    pub dm_device: String,
    pub cow_loop: String,
    pub cow_file: PathBuf,
    pub template_path: PathBuf,
}

Per-sandbox CoW state. Stored in SandboxInstance for cleanup.

Intentionally !Clone: every handle owns a refcount on its template, and a stray clone would double-decrement on teardown.

Fields

dm_name: String

dm device name, e.g. arcbox-snap-<sandbox_id>.

dm_device: String

Absolute device path, e.g. /dev/mapper/arcbox-snap-<sandbox_id>.

cow_loop: String

Loop device backing the sparse COW file.

cow_file: PathBuf

Path to the sparse COW file on disk.

template_path: PathBuf

Original template rootfs path (used to release the template refcount).

Trait Implementations

impl Debug for CowHandle

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.