Enum ExclusiveResource 

pub enum ExclusiveResource {
    System,
    Dpkg,
    Snap,
    RpmOstree,
    Flatpak,
}

A system-wide lock that only one mutating action may hold at a time.

These are the real kernel/daemon locks that make two concurrent actions fail rather than merely interleave: apt/dpkg serialise on /var/lib/dpkg/lock-frontend, snapd on its change queue, rpm-ostree on its transaction lock. Two actions contending for the same resource do not produce a partial result — one of them errors out mid-way, which for a package operation can leave dpkg needing --configure -a.

Variants

System

The whole machine. Claimed by any High-risk reboot-required action (release upgrade, rebase, layered-package install), which conflicts with every other mutating action regardless of resource.

Dpkg

The dpkg/apt database lock. Ubuntu/Debian package operations.

Snap

The snapd change queue.

RpmOstree

The rpm-ostree transaction lock.

Flatpak

The flatpak installation lock.

Implementations

impl ExclusiveResource

pub fn label(self) -> &'static str

Human-readable name used in the conflict message shown to the operator.

Trait Implementations

impl Clone for ExclusiveResource

fn clone(&self) -> ExclusiveResource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ExclusiveResource

impl Debug for ExclusiveResource

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

Formats the value using the given formatter.

impl Eq for ExclusiveResource

impl Hash for ExclusiveResource

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ExclusiveResource

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ExclusiveResource