actor-supervisor.md

std.actor.supervisor

Local actor supervisor helpers built on std.actor.

(import std.actor.supervisor)

Symbol	Description
(make-child-spec id start . opts)	Build one child specification alist.
(child-spec id start . opts)	Alias for make-child-spec.
(supervisor-start key value . opts)	Start one supervisor process.
(supervisor-start-link key value . opts)	Start one linked supervisor process.
(supervisor-pid? value)	Return #t when value is a supervisor pid.
(supervisor-which-children supervisor)	Return list of (id pid) pairs.
(supervisor-count-children supervisor)	Return count of running children.
(supervisor-start-child supervisor spec)	Start and append one child spec.
(supervisor-terminate-child supervisor id)	Stop one child by id.
(supervisor-restart-child supervisor id)	Restart one child by id.
(supervisor-delete-child supervisor id)	Stop and remove one child by id.
(one-for-one specs . opts)	Restart only the failed child.
(one-for-all specs . opts)	Restart every child when one fails.
(rest-for-one specs . opts)	Restart failed child and children started after it.

Supported child spec keys:

• 'id child identifier.
• 'start zero-argument thunk for child startup.
• 'restart one of 'permanent, 'transient, 'temporary.
• 'shutdown shutdown timeout metadata.
• 'type child kind metadata.
• 'modules module metadata.

Supported supervisor options:

• 'strategy one of 'one-for-one, 'one-for-all, 'rest-for-one.
• 'children list of child specs.
• 'max-restarts restart intensity threshold.
• 'max-seconds restart intensity time window.