Merge origin/master (session-projection cache column) into goal-ui-merge-master
This commit is contained in:
imccyu
@@ -256,7 +256,7 @@ Read a service from the store without the inject requirement.
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**Returns** the service value, or `undefined` when not (yet) provided.
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[Source](../../../vendor/cordis/src/reflect.ts#L16)
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[Source](../../../vendor/cordis/src/reflect.ts#L17)
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### ctx.set(name, value)
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@@ -281,7 +281,7 @@ Only the fiber that provided the service may set it; setting an unprovided name
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- `name` — the service name.
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- `value` — the new service value.
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[Source](../../../vendor/cordis/src/reflect.ts#L28)
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[Source](../../../vendor/cordis/src/reflect.ts#L29)
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### ctx.provide(name, value)
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@@ -311,7 +311,7 @@ The service becomes visible to dependents in the same isolation scope once the f
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**Returns** a disposer that unregisters the service.
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[Source](../../../vendor/cordis/src/reflect.ts#L43)
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[Source](../../../vendor/cordis/src/reflect.ts#L44)
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### ctx.accessor(name, options)
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@@ -335,7 +335,7 @@ The accessor is removed when the current fiber unloads. Throws if the name is al
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- `name` — the context property name.
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- `options` — the `get` hook and optional `set` hook.
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[Source](../../../vendor/cordis/src/reflect.ts#L55)
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[Source](../../../vendor/cordis/src/reflect.ts#L56)
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### ctx.mixin(name, mixins)
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@@ -361,4 +361,4 @@ Each mixed-in key becomes an accessor that forwards to the service (binding meth
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- `name` — the context property holding the source service.
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- `mixins` — keys to forward, or a source-key → ctx-key map.
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[Source](../../../vendor/cordis/src/reflect.ts#L66)
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[Source](../../../vendor/cordis/src/reflect.ts#L67)
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@@ -26,7 +26,7 @@ Dispatch an event, running all listeners concurrently.
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**Returns** a promise resolving once every listener has settled.
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[Source](../../../vendor/cordis/src/events.ts#L43)
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[Source](../../../vendor/cordis/src/events.ts#L44)
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### ctx.emit(name, ...args)
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@@ -46,7 +46,7 @@ Dispatch an event synchronously, ignoring listener return values.
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- `name` — the event name.
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- `args` — arguments passed to every listener.
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[Source](../../../vendor/cordis/src/events.ts#L52)
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[Source](../../../vendor/cordis/src/events.ts#L53)
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### ctx.serial(name, ...args)
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@@ -69,7 +69,7 @@ Dispatch an event, awaiting listeners in order until one bails.
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**Returns** the first bail value (non-null, non-false, non-undefined), if any.
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[Source](../../../vendor/cordis/src/events.ts#L62)
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[Source](../../../vendor/cordis/src/events.ts#L63)
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### ctx.bail(name, ...args)
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@@ -92,7 +92,7 @@ Dispatch an event, calling listeners in order until one bails.
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**Returns** the first bail value (non-null, non-false, non-undefined), if any.
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[Source](../../../vendor/cordis/src/events.ts#L72)
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[Source](../../../vendor/cordis/src/events.ts#L73)
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### ctx.waterfall(name, ...args)
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@@ -120,7 +120,7 @@ Each listener wraps the rest of the chain: calling `next()` invokes the next lis
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**Returns** the outermost listener's return value.
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[Source](../../../vendor/cordis/src/events.ts#L85)
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[Source](../../../vendor/cordis/src/events.ts#L86)
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### ctx.on(name, listener, options?)
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@@ -144,7 +144,7 @@ Register an event listener owned by the current fiber.
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**Returns** a disposer removing the listener; `true` if it was still registered.
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[Source](../../../vendor/cordis/src/events.ts#L96)
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[Source](../../../vendor/cordis/src/events.ts#L97)
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### ctx.once(name, listener, options?)
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@@ -168,7 +168,7 @@ Same as `on()`, but the listener disposes itself after its first call.
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**Returns** a disposer removing the listener; `true` if it was still registered.
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[Source](../../../vendor/cordis/src/events.ts#L105)
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[Source](../../../vendor/cordis/src/events.ts#L106)
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## EventOptions
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@@ -184,7 +184,7 @@ interface EventOptions {
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}
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```
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[Source](../../../vendor/cordis/src/events.ts#L111)
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[Source](../../../vendor/cordis/src/events.ts#L112)
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## DispatchMode
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@@ -204,4 +204,4 @@ Event dispatch strategy used by the event service.
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type DispatchMode = 'emit' | 'parallel' | 'serial' | 'bail' | 'waterfall'
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```
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[Source](../../../vendor/cordis/src/events.ts#L31)
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[Source](../../../vendor/cordis/src/events.ts#L32)
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@@ -34,7 +34,7 @@ Register a cleanup-aware effect on this fiber.
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**Returns** a disposer that tears the effect down and settles once done.
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[Source](../../../vendor/cordis/src/fiber.ts#L419)
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[Source](../../../vendor/cordis/src/fiber.ts#L420)
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### ctx.fiber
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@@ -45,7 +45,7 @@ fiber: Fiber
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The fiber (plugin runtime instance) that owns this context.
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[Source](../../../vendor/cordis/src/fiber.ts#L11)
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[Source](../../../vendor/cordis/src/fiber.ts#L12)
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## The Fiber class
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@@ -53,7 +53,7 @@ Runtime instance of one plugin application.
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A fiber tracks dependency state, validated config, lifecycle effects, and cleanup for the plugin context returned by `ctx.plugin()`.
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[Source](../../../vendor/cordis/src/fiber.ts#L183)
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[Source](../../../vendor/cordis/src/fiber.ts#L184)
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### fiber.uid
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@@ -64,7 +64,7 @@ public uid: number | null
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Unique id within the registry; 0 for the root fiber, `null` once disposed.
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[Source](../../../vendor/cordis/src/fiber.ts#L185)
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[Source](../../../vendor/cordis/src/fiber.ts#L186)
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### fiber.ctx
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@@ -75,7 +75,7 @@ public readonly ctx: Context
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The context this fiber's plugin runs in (extends the parent context).
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[Source](../../../vendor/cordis/src/fiber.ts#L187)
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[Source](../../../vendor/cordis/src/fiber.ts#L188)
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### fiber.config
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@@ -86,7 +86,7 @@ public config: any
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The validated plugin config (updated by `update()`).
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[Source](../../../vendor/cordis/src/fiber.ts#L189)
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[Source](../../../vendor/cordis/src/fiber.ts#L190)
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### fiber.state
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@@ -97,7 +97,7 @@ public state
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Current lifecycle state; transitions emit `internal/status`.
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[Source](../../../vendor/cordis/src/fiber.ts#L191)
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[Source](../../../vendor/cordis/src/fiber.ts#L192)
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### fiber.dispose
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@@ -108,7 +108,7 @@ public readonly dispose: () => Promise<void>
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Dispose this fiber: unload the plugin, then settle once cleanup finished.
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[Source](../../../vendor/cordis/src/fiber.ts#L193)
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[Source](../../../vendor/cordis/src/fiber.ts#L194)
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### fiber.store
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@@ -119,7 +119,7 @@ public store: Dict<Impl> | undefined
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Snapshot of required service implementations while loaded; `undefined` otherwise.
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[Source](../../../vendor/cordis/src/fiber.ts#L195)
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[Source](../../../vendor/cordis/src/fiber.ts#L196)
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### fiber.inertia
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@@ -130,7 +130,7 @@ public inertia: Promise<void> | undefined
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The in-flight load/unload transition, if one is currently running.
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[Source](../../../vendor/cordis/src/fiber.ts#L197)
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[Source](../../../vendor/cordis/src/fiber.ts#L198)
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### fiber.name
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@@ -141,7 +141,7 @@ get name()
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The plugin's display name, inherited from the nearest named ancestor, else `'root'`.
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[Source](../../../vendor/cordis/src/fiber.ts#L340)
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[Source](../../../vendor/cordis/src/fiber.ts#L341)
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### fiber.assertActive()
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@@ -159,7 +159,7 @@ Throw if the fiber has already been disposed.
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**Returns** nothing when the fiber is still active.
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[Source](../../../vendor/cordis/src/fiber.ts#L355)
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[Source](../../../vendor/cordis/src/fiber.ts#L356)
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### fiber.effect(execute, label?)
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@@ -190,7 +190,7 @@ Register a cleanup-aware effect on this fiber.
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**Returns** a disposer that tears the effect down and settles once done.
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[Source](../../../vendor/cordis/src/fiber.ts#L419)
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[Source](../../../vendor/cordis/src/fiber.ts#L420)
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### fiber.getEffects()
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@@ -207,7 +207,7 @@ Return metadata for currently registered effects.
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**Returns** one `EffectMeta` tree per labeled live effect.
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[Source](../../../vendor/cordis/src/fiber.ts#L572)
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[Source](../../../vendor/cordis/src/fiber.ts#L573)
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### fiber.await()
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@@ -225,7 +225,7 @@ Wait for current lifecycle work and rethrow startup errors.
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**Returns** this fiber, once it has settled into a stable state.
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[Source](../../../vendor/cordis/src/fiber.ts#L701)
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[Source](../../../vendor/cordis/src/fiber.ts#L702)
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### fiber.restart()
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@@ -243,7 +243,7 @@ Dispose and immediately reload this plugin with its current config.
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**Returns** a promise resolving once the reload settled.
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[Source](../../../vendor/cordis/src/fiber.ts#L715)
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[Source](../../../vendor/cordis/src/fiber.ts#L716)
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### fiber.update(config, noSave?)
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@@ -271,7 +271,7 @@ Runs the `internal/update` waterfall first, so update hooks (and HMR) can veto o
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**Returns** nothing; the restart runs behind the `internal/update` waterfall.
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[Source](../../../vendor/cordis/src/fiber.ts#L733)
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[Source](../../../vendor/cordis/src/fiber.ts#L734)
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## Effect
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@@ -292,7 +292,7 @@ type Effect<T = any> =
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| AsyncEffect<T>
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```
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[Source](../../../vendor/cordis/src/fiber.ts#L82)
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[Source](../../../vendor/cordis/src/fiber.ts#L83)
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## Disposable
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@@ -310,7 +310,7 @@ Disposers run in reverse registration order when the owning fiber unloads; they
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type Disposable<T = any> = () => T
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```
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[Source](../../../vendor/cordis/src/fiber.ts#L73)
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[Source](../../../vendor/cordis/src/fiber.ts#L74)
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## EffectMeta
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@@ -326,7 +326,7 @@ interface EffectMeta {
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}
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```
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[Source](../../../vendor/cordis/src/fiber.ts#L95)
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[Source](../../../vendor/cordis/src/fiber.ts#L96)
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## CordisError
|
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@@ -352,7 +352,7 @@ namespace CordisError {
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}
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```
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[Source](../../../vendor/cordis/src/fiber.ts#L156)
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[Source](../../../vendor/cordis/src/fiber.ts#L157)
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## ValidationError
|
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@@ -372,4 +372,4 @@ class ValidationError extends TypeError {
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}
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```
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[Source](../../../vendor/cordis/src/fiber.ts#L18)
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[Source](../../../vendor/cordis/src/fiber.ts#L19)
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@@ -30,7 +30,7 @@ Shorthand for `ctx.plugin({ inject, apply: callback })`: the callback is unloade
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**Returns** the fiber; awaiting it settles once loading finished.
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[Source](../../../vendor/cordis/src/registry.ts#L175)
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[Source](../../../vendor/cordis/src/registry.ts#L176)
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### ctx.plugin(plugin, ...args)
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|
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@@ -53,7 +53,7 @@ Load a plugin in the current context.
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**Returns** the fiber; awaiting it settles once loading finished (rejecting on config or startup errors).
|
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[Source](../../../vendor/cordis/src/registry.ts#L184)
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[Source](../../../vendor/cordis/src/registry.ts#L185)
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## Plugin
|
||||
|
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@@ -118,7 +118,7 @@ namespace Plugin {
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||||
}
|
||||
```
|
||||
|
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[Source](../../../vendor/cordis/src/registry.ts#L91)
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[Source](../../../vendor/cordis/src/registry.ts#L92)
|
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|
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## Inject
|
||||
|
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@@ -149,4 +149,4 @@ namespace Inject {
|
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}
|
||||
```
|
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|
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[Source](../../../vendor/cordis/src/registry.ts#L18)
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[Source](../../../vendor/cordis/src/registry.ts#L19)
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@@ -1042,7 +1042,9 @@ abstract append(id: SessionId, events: readonly SessionEvent[]): Promise<void>
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* A coordinator-backed cold load reserves the identity across storage awaits,
|
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* so concurrent publication of a same-id live Session rejects.
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* Returned events are detached, and every identified message is deeply
|
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* frozen; malformed identified messages reject before any stored event is returned.
|
||||
* frozen. Coordinator-backed implementations upgrade supported pre-identity
|
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* message events before validation; other malformed messages reject before
|
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* any stored event is returned.
|
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* @param id - the persisted session to reload.
|
||||
* @returns the header and a log ending on a balanced `turn/end`.
|
||||
*/
|
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@@ -1052,14 +1054,34 @@ abstract load(id: SessionId): Promise<{ meta: SessionHeader; events: SessionEven
|
||||
* Inspect a header and its valid contiguous stored prefix without repairing
|
||||
* a torn tail, closing an interrupted turn, or publishing coordinator state.
|
||||
* This read is serialized with writes for the same id and returns detached
|
||||
* values with deeply frozen identified messages, so observers cannot mutate message
|
||||
* identity/content or backend-owned state. Malformed identified messages reject.
|
||||
* values with upgraded, deeply frozen identified messages, so observers
|
||||
* cannot mutate message identity/content or backend-owned state. Other
|
||||
* malformed messages reject.
|
||||
* @param id - the persisted session to inspect.
|
||||
* @param signal - optional cancellation for queued and backend read work.
|
||||
* @returns the header and valid stored event prefix exactly as observed.
|
||||
*/
|
||||
abstract inspect(id: SessionId, signal?: AbortSignal): Promise<{ meta: SessionHeader; events: SessionEvent[] }>
|
||||
|
||||
/**
|
||||
* Read the stored events from `fromSeq` onward — the read-from-seq
|
||||
* primitive for read models that resume from a watermark (e.g. a persisted
|
||||
* projection cache folding only the tail past its checkpoint). Like
|
||||
* {@link inspect} it is non-mutating and detached: no torn-tail truncation,
|
||||
* no synthetic closers, no coordinator-state publication; only events from
|
||||
* the valid contiguous stored prefix are returned, so a torn fragment never
|
||||
* reaches the caller. `fromSeq` at or beyond the stored prefix returns an
|
||||
* empty event list (never an error). Backends whose medium can seek by seq
|
||||
* (SQLite) read only the suffix; sequential media (JSONL, both encodings)
|
||||
* still parse the whole artifact and skip forward — the primitive bounds
|
||||
* what is RETURNED and refolded, not every backend's physical read.
|
||||
* @param id - the persisted session to read.
|
||||
* @param fromSeq - first event seq to include; a non-negative safe integer.
|
||||
* @param signal - optional cancellation for queued and backend read work.
|
||||
* @returns the header and the stored events with `seq >= fromSeq`.
|
||||
*/
|
||||
abstract readFrom(id: SessionId, fromSeq: number, signal?: AbortSignal): Promise<{ meta: SessionHeader; events: SessionEvent[] }>
|
||||
|
||||
/**
|
||||
* Lightweight listing from metadata, without a full-log parse.
|
||||
* @param signal - optional cancellation for backend listing work.
|
||||
@@ -1084,6 +1106,54 @@ Types: [SessionEvent](../core-data-structures/core.md) · [SessionHeader](../cor
|
||||
|
||||
Source: [`packages/session-persistence/session-persistence/src/index.ts:52`](../../packages/session-persistence/session-persistence/src/index.ts)
|
||||
|
||||
## `ctx.sessionProjectionCache` — `SessionProjectionCache`
|
||||
|
||||
The persisted projection cache service. Opens the `session_projcache` domain at init, checkpoints live sessions on a throttled write-behind (count/interval triggers from Config) plus two mandatory points — `turn/end` and session disposal (the live-to-cold moment) — and serves the cold-read ladder: cached row, persistence `readFrom` tail, registry `restore`, durable write-back. Every durable write is fail-soft: failures log a warning and the cache self-heals on the next write or cold read.
|
||||
|
||||
```ts cordis-catalog
|
||||
/**
|
||||
* The zero-I/O listing read: whole values viewed straight from the stored
|
||||
* rows (version-matching keys only), each cut carried with its watermark
|
||||
* so a client value store can seed under its higher-seq-wins rule — as
|
||||
* stale as the last durable checkpoint but never wrong, and never from an
|
||||
* unrelated log (the caller's header is the identity witness). Fresher
|
||||
* paths (the history tail baseline, {@link coldSnapshot}) supersede these
|
||||
* values whenever a session is actually opened.
|
||||
* @param meta - the listed session's header (identity witness; no log read).
|
||||
* @returns the cut (`asOfSeq` = lowest served-row watermark), or
|
||||
* `undefined` when no usable row exists for this lifecycle.
|
||||
*/
|
||||
cachedSnapshot(meta: SessionHeader): ProjectionSnapshot | undefined
|
||||
|
||||
/**
|
||||
* Durably checkpoint one live session NOW (both mandatory points call
|
||||
* this; tests and carriers may too). The registry cut is snapshotted at
|
||||
* this boundary (states are live references), then the whole record is
|
||||
* replaced. NOT fail-soft — callers on the fail-soft paths contain it.
|
||||
* @param session - the live session to checkpoint.
|
||||
* @returns resolution after durability and event emission.
|
||||
*/
|
||||
async write(session: Session): Promise<void>
|
||||
|
||||
/**
|
||||
* Cold-read one persisted session's projections with zero full-log load:
|
||||
* cached rows + a persistence `readFrom` tail from the registry's restore
|
||||
* floor, refolded by the registry and written back (fail-soft) so the next
|
||||
* cold read starts closer. A cache row invalidated by a shrunk log
|
||||
* (crash-repair truncation) triggers one full re-read from seq 0 — the
|
||||
* ladder's slow rung, still no crash. Rejects when the session has no
|
||||
* persisted log (`not found` from the persistence seam).
|
||||
* @param id - the persisted session to read.
|
||||
* @param signal - optional cancellation for the persistence reads.
|
||||
* @returns the snapshot cut at the stored log end.
|
||||
*/
|
||||
async coldSnapshot(id: SessionId, signal?: AbortSignal): Promise<ProjectionSnapshot>
|
||||
```
|
||||
|
||||
Types: [Session](../core-data-structures/session.md) · [SessionHeader](../core-data-structures/persistence.md) · [SessionId](../core-data-structures/core.md)
|
||||
|
||||
Source: [`packages/session-projection/session-projection-cache/src/index.ts:71`](../../packages/session-projection/session-projection-cache/src/index.ts)
|
||||
|
||||
## `ctx.sessionProjections` — `SessionProjectionRegistry`
|
||||
|
||||
`ctx.sessionProjections`: the projection unit table and its drive. The service subscribes to `session/event` once; every committed event passes every registered unit's `apply` (eager drive), and a changed state reference notifies the change feed with the schema-validated view. Cells build lazily — a unit registered after events flowed, or a session older than the registry, folds `init` over the in-memory log on first touch (event or read). Registration is an effect (disposer rides the calling fiber): an unloaded domain plugin's key disappears from snapshots and clients read it as capability absence. Duplicate keys throw. Domain plugins register under `ctx.inject(['sessionProjections'], …)` so headless assemblies without the registry stay unaffected.
|
||||
@@ -1116,11 +1186,81 @@ onChanged(listener: ProjectionChangeListener): () => void
|
||||
* @returns the snapshot; `values` is empty when no unit is registered.
|
||||
*/
|
||||
snapshot(session: Session): ProjectionSnapshot
|
||||
|
||||
/**
|
||||
* State-level checkpoint of every registered unit for one session, read
|
||||
* from the watermark cache (missing cells fold lazily over the in-memory
|
||||
* log). This is the write side of the persisted projection cache: the
|
||||
* returned rows are the `(key → {ver, seq, val})` part of the durable
|
||||
* `(sessionId, key, ver, seq, val)`
|
||||
* rows. Every `val` is a DETACHED structured clone — never the live
|
||||
* cell reference: the watermark cache is this registry's authoritative
|
||||
* mutable state, and a caller reaching the live reference could corrupt
|
||||
* every subsequent snapshot and frame through it (plain JSON by the unit
|
||||
* contract, so the clone is total).
|
||||
* @param session - the session whose unit states are checkpointed.
|
||||
* @returns one row per registered key; empty when no unit is registered.
|
||||
*/
|
||||
checkpoint(session: Session): ProjectionCheckpoint
|
||||
|
||||
/**
|
||||
* The stored seq a {@link restore} tail read over `checkpoint` must start
|
||||
* at: one event BELOW the lowest usable watermark (a row is usable when
|
||||
* its `ver` matches the live unit's `stateVersion`; an absent or mismatched row
|
||||
* pulls the floor to `0` — that key must refold the full log). The
|
||||
* one-below anchor is load-bearing: the tail then proves how far the
|
||||
* stored log still extends, so {@link restore} can detect a log that
|
||||
* shrank below a row's watermark (crash-repair truncation) instead of
|
||||
* serving the stale row as current — an empty tail read from the anchor
|
||||
* yields an end below every watermark and the restore rejects for a full
|
||||
* re-read.
|
||||
* @param checkpoint - persisted rows for one session (possibly stale or empty).
|
||||
* @returns the seq to hand the persistence `readFrom`, or `undefined`
|
||||
* when no unit is registered (no read needed — {@link restore} would
|
||||
* serve empty values regardless).
|
||||
*/
|
||||
restoreFloor(checkpoint: ProjectionCheckpoint): number | undefined
|
||||
|
||||
/**
|
||||
* View a checkpoint's rows without any log read: for every registered
|
||||
* unit whose row's `ver` matches, serve the schema-validated
|
||||
* `view` of the stored state; mismatched or absent rows leave their key
|
||||
* absent (a cold or listing consumer treats it as not-yet-available and a
|
||||
* fuller read path refolds it). The zero-I/O rung of the read ladder —
|
||||
* values are as stale as their rows, never wrong.
|
||||
* @param checkpoint - persisted rows for one session (possibly stale or empty).
|
||||
* @returns whole values per key with a usable row; empty when none.
|
||||
*/
|
||||
viewCheckpoint(checkpoint: ProjectionCheckpoint): Partial<SessionProjectionMap>
|
||||
|
||||
/**
|
||||
* Cold read: fold every registered unit over a stored log suffix, seeding
|
||||
* each from its checkpoint row when usable — the one read recipe (cached
|
||||
* state + forward tail replay + `view`) applied without a live `Session`.
|
||||
* Call with the events returned by a persistence
|
||||
* `readFrom(id, restoreFloor(checkpoint))` and that same floor as
|
||||
* `baseSeq`; the floor's one-below anchor makes the supplied end honest,
|
||||
* so a shrunk log is detected here. A row is usable iff its
|
||||
* `ver` matches the live unit's `stateVersion`, it does not predate `baseSeq`
|
||||
* (`seq >= baseSeq - 1`), and it does not claim events past the
|
||||
* supplied end (`seq <= endSeq`); an unusable row is discarded
|
||||
* and its key refolds from `init` — which is only sound over the full
|
||||
* log, so a discarded row with `baseSeq > 0` throws (the caller re-reads
|
||||
* from seq 0, e.g. after a crash-repair truncation shrank the log below
|
||||
* a row's watermark).
|
||||
* @param checkpoint - persisted rows for one session (possibly stale or empty).
|
||||
* @param events - the stored events with `seq >= baseSeq`, in seq order.
|
||||
* @param baseSeq - the seq `events` starts at (its first event's seq when non-empty).
|
||||
* @returns the snapshot cut at the supplied log end (`asOfSeq` is the last
|
||||
* supplied event's seq, `baseSeq - 1` for an empty tail) plus the
|
||||
* refreshed checkpoint rows at that cut, ready for a durable write-back.
|
||||
*/
|
||||
restore(checkpoint: ProjectionCheckpoint, events: readonly SessionEvent[], baseSeq: number): { snapshot: ProjectionSnapshot; checkpoint: ProjectionCheckpoint }
|
||||
```
|
||||
|
||||
Types: [Session](../core-data-structures/session.md)
|
||||
Types: [Session](../core-data-structures/session.md) · [SessionEvent](../core-data-structures/core.md)
|
||||
|
||||
Source: [`packages/session-projection/session-projection/src/index.ts:136`](../../packages/session-projection/session-projection/src/index.ts)
|
||||
Source: [`packages/session-projection/session-projection/src/index.ts:156`](../../packages/session-projection/session-projection/src/index.ts)
|
||||
|
||||
## `ctx.sessionQuery` — `SessionQueryService` (abstract seam)
|
||||
|
||||
|
||||
Reference in New Issue
Block a user