47 lines
1.5 KiB
Plaintext
47 lines
1.5 KiB
Plaintext
version 1 .
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embeddedType EntityRef.Cap .
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; Asserts that a service should begin (and stay) running after waiting
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; for its dependencies and considering reverse-dependencies, blocks,
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; and so on.
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RequireService = <require-service @serviceName any>.
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; Asserts that a service should begin (and stay) running RIGHT NOW,
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; without considering its dependencies.
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RunService = <run-service @serviceName any>.
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; Asserts one or more current states of service `serviceName`. The
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; overall state of the service is the union of asserted `state`s.
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;
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; Only a few combinations make sense:
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; - `started`
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; - `started` + `ready`
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; - `failed`
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; - `complete`
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;
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ServiceState = <service-state @serviceName any @state State>.
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; Possible service states.
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State =
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/ ; The service has begun its startup routine, and may or may not be
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; ready to take requests from other parties.
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=started
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/ ; The service is ready to take requests from other parties.
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; (This state is special in that it is asserted *in addition* to `started`.)
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=ready
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/ ; The service has failed.
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=failed
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/ ; The service has completed execution.
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=complete
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.
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; Asserts that, when `depender` is `require-service`d, it should not
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; be started until `dependee` has been asserted.
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ServiceDependency = <depends-on @depender any @dependee ServiceState>.
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; Asserts that the service is a "core" service. If *not* specified for
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; a service X, where X is not `<milestone Y>` for some Y, the system
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; acts as if `<depends-on X <service-state <milestone core> ready>>`
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; were asserted.
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ServiceMilestone = <core-service @serviceName any>.
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