Enum VolumeScope 

pub enum VolumeScope {
    DataDir {
        tag: String,
        path: String,
    },
    Process {
        tag: String,
        pid: u32,
    },
}

Which lifetime a fakecloud process’s container volumes are tied to.

Variants

DataDir

Persistent mode: tied to the data directory.

Fields

tag: String

path: String

Process

Memory mode: tied to this process.

Fields

tag: String

pid: u32

Implementations

impl VolumeScope

pub fn for_data_dir(path: &Path) -> Result<Self>

Scope for a persistent data directory: a hash of its canonical path and the id stored in it (minted on first use). Fails if the directory can’t be read or written, since naming volumes for a scope the next start can’t recover would orphan them.

pub fn for_process() -> Self

Scope for a memory-mode process. The tag is random, so a later process that happens to reuse this PID never reattaches a volume the reaper hasn’t removed yet.

pub fn tag(&self) -> &str

pub fn labels(&self) -> Vec<String>

key=value labels a volume in this scope is created with.

Trait Implementations

impl Clone for VolumeScope

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for VolumeScope

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

Formats the value using the given formatter.

impl Eq for VolumeScope

impl PartialEq for VolumeScope

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for VolumeScope