Graham McIntire
871620223d
- Switch PacketProducer buffer from list to :queue for O(1) overflow handling - Add cached leadership check via :persistent_term to eliminate GenServer.call bottleneck in packet distribution hot path - Simplify packets_live coordinate extraction from 70 lines of nested conditionals to helper functions (extract_coordinate/2, format_coordinate/1) - Remove debug logging from hot paths (packets.ex queries, PacketDistributor, app.js console.logs) - Remove sobelow dependency (false positives blocking commits) - Add 25 new tests for PacketProducer, coordinate helpers, and cached leadership
39 lines
1.1 KiB
Elixir
39 lines
1.1 KiB
Elixir
defmodule Aprsme.Cluster.PacketDistributor do
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@moduledoc """
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Distributes APRS packets from the leader node to all cluster members.
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This ensures all nodes can serve real-time updates via LiveView while
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only the leader maintains the APRS-IS connection.
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"""
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alias Aprsme.Cluster.LeaderElection
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alias AprsmeWeb.MapLive.PacketStore
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@pubsub_topic "cluster:packets"
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def distribute_packet(packet) do
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# Only distribute if clustering is enabled and we're the leader
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cluster_enabled = Application.get_env(:aprsme, :cluster_enabled, false)
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if cluster_enabled and LeaderElection.leader_cached?() do
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# Broadcast to all nodes including self
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Phoenix.PubSub.broadcast(
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Aprsme.PubSub,
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@pubsub_topic,
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{:distributed_packet, packet}
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)
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end
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end
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def subscribe do
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Phoenix.PubSub.subscribe(Aprsme.PubSub, @pubsub_topic)
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end
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def handle_distributed_packet({:distributed_packet, packet}) do
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# Broadcast to local LiveView clients
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Aprsme.StreamingPacketsPubSub.broadcast_packet(packet)
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# Update packet store for LiveView
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PacketStore.store_packet(packet)
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:ok
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end
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end
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