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eventstore
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Event store using PostgreSQL for persistence.
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lib/event_store/registration/distributed_forwarder.ex
defmodule EventStore.Registration.DistributedForwarder do
@moduledoc false
use GenServer
alias EventStore.Registration.LocalRegistry
def start_link(event_store) do
name = forwarder_name(event_store)
GenServer.start_link(__MODULE__, event_store, name: name)
end
@doc """
Broadcast the message on the topic to all connected nodes.
"""
def broadcast(event_store, topic, message) do
forwarder_name = forwarder_name(event_store)
for node <- Node.list() do
Process.send({forwarder_name, node}, {:broadcast, topic, message}, [:noconnect])
end
:ok
end
def init(_args) do
{:ok, []}
end
def handle_info({:broadcast, topic, message}, event_store) do
:ok = LocalRegistry.broadcast(event_store, topic, message)
{:noreply, event_store}
end
defp forwarder_name(event_store),
do: Module.concat([event_store, __MODULE__])
end