76a24243f0
Introduce an "event bus"-like system. It's more like a fan-out broadcaster for certain events. Instead of directly sending events to SocketIO, they are now sent to the broker, which in turn sends it to any registered "forwarder". Currently there is ony one forwarder, for SocketIO. This opens the door for a proper MQTT client that sends the same events to an MQTT server.
39 lines
1.6 KiB
Go
39 lines
1.6 KiB
Go
// SPDX-License-Identifier: GPL-3.0-or-later
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package eventbus
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import "fmt"
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const (
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// Topics on which events are published.
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TopicJobUpdate EventTopic = "/jobs" // sends api.SocketIOJobUpdate
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TopicLastRenderedImage EventTopic = "/last-rendered" // sends api.SocketIOLastRenderedUpdate
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TopicTaskUpdate EventTopic = "/task" // sends api.SocketIOTaskUpdate
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TopicWorkerUpdate EventTopic = "/workers" // sends api.SocketIOWorkerUpdate
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TopicWorkerTagUpdate EventTopic = "/workertags" // sends api.SocketIOWorkerTagUpdate
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TopicSubscription EventTopic = "/subscription" // clients send api.SocketIOSubscription
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// Parameterised topics.
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TopicJobSpecific EventTopic = "/jobs/%s" // %s = job UUID
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TopicJobLastRendered EventTopic = "/jobs/%s/last-rendered" // %s = job UUID
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TopicTaskLog EventTopic = "/tasklog/%s" // %s = task UUID
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)
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// topicForJob will return the event topic for the given job. Clients subscribed
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// to this topic receive info scoped to this job, so for example updates to all
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// tasks of this job.
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func topicForJob(jobUUID string) EventTopic {
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return EventTopic(fmt.Sprintf(string(TopicJobSpecific), jobUUID))
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}
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func topicForJobLastRendered(jobUUID string) EventTopic {
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return EventTopic(fmt.Sprintf(string(TopicJobLastRendered), jobUUID))
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}
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// topicForTaskLog will return the event topic for receiving task logs of
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// the the given task.
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//
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// Note that general task updates are sent to their job's topic, and not to this
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// one.
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func topicForTaskLog(taskUUID string) EventTopic {
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return EventTopic(fmt.Sprintf(string(TopicTaskLog), taskUUID))
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}
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