Struct HotConfigActivator 

pub struct HotConfigActivator<C> { /* private fields */ }

A config-pointer-swap Activator: the hot-reload analog of the stager’s symlink or image swap.

It resolves a ReleaseId to a staged config value and swaps the live HotConfig to it, so driving a Stager with this activator makes stage_and_apply verify, apply, health-check, and roll back a config reload with no changes to the stager itself. The previous bundle’s value stays registered, so an auto-rollback (a flip back to the previous release) is a pointer swap, never a re-download.

Clone to hold a staging handle alongside the copy the stager owns: both clones share the same live handle and the same registry.

Implementations

impl<C> HotConfigActivator<C>

pub fn new(live: HotConfig<C>, initial: ReleaseId) -> Self

Build an activator over live, registering its current value under initial so a rollback to the starting release resolves.

initial is the ReleaseId the Stager is constructed with as its live version; registering the current value under it makes the first auto-rollback a pointer swap back to the value that is live right now.

pub fn stage(&self, release: ReleaseId, value: Arc<C>)

Register the config value a release delivers, before it is applied.

Call this for a release as it is staged (so activate can resolve the forward flip). A committed release stays registered, so a later rollback to it is a pointer swap.

pub fn live(&self) -> HotConfig<C>

The live handle this activator swaps — clone it to read the config the same way a turn does.

Trait Implementations

impl<C> Activator for HotConfigActivator<C>

fn activate(&self, release: &ReleaseId) -> Result<(), StageError>

Flip the live pointer to release.

impl<C> Clone for HotConfigActivator<C>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.