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@ -36,7 +36,16 @@ defmodule Pleroma.Gun.ConnectionPool.Worker do
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end
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@impl true
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def handle_cast({:add_client, client_pid, send_pid_back}, %{key: key} = state) do
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def handle_cast({:add_client, client_pid, send}, state) do
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case handle_call(:add_client, {client_pid, nil}, state) do
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{:reply, conn_pid, state, :hibernate} ->
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if send, do: send(client_pid, {:conn_pid, conn_pid})
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{:noreply, state, :hibernate}
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end
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end
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@impl true
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def handle_call(:add_client, {client_pid, _}, %{key: key} = state) do
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time = :erlang.monotonic_time(:millisecond)
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{{conn_pid, _, _, _}, _} =
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@ -44,8 +53,6 @@ defmodule Pleroma.Gun.ConnectionPool.Worker do
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{conn_pid, [client_pid | used_by], crf(time - last_reference, crf), time}
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end)
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if send_pid_back, do: send(client_pid, {:conn_pid, conn_pid})
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state =
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if state.timer != nil do
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Process.cancel_timer(state[:timer])
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@ -57,11 +64,11 @@ defmodule Pleroma.Gun.ConnectionPool.Worker do
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ref = Process.monitor(client_pid)
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state = put_in(state.client_monitors[client_pid], ref)
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{:noreply, state, :hibernate}
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{:reply, conn_pid, state, :hibernate}
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end
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@impl true
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def handle_cast({:remove_client, client_pid}, %{key: key} = state) do
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def handle_call(:remove_client, {client_pid, _}, %{key: key} = state) do
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{{_conn_pid, used_by, _crf, _last_reference}, _} =
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Registry.update_value(@registry, key, fn {conn_pid, used_by, crf, last_reference} ->
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{conn_pid, List.delete(used_by, client_pid), crf, last_reference}
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@ -78,7 +85,7 @@ defmodule Pleroma.Gun.ConnectionPool.Worker do
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nil
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end
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{:noreply, %{state | timer: timer}, :hibernate}
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{:reply, :ok, %{state | timer: timer}, :hibernate}
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end
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@impl true
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@ -102,22 +109,13 @@ defmodule Pleroma.Gun.ConnectionPool.Worker do
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@impl true
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def handle_info({:DOWN, _ref, :process, pid, reason}, state) do
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# Sometimes the client is dead before we demonitor it in :remove_client, so the message
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# arrives anyway
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case state.client_monitors[pid] do
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nil ->
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{:noreply, state, :hibernate}
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:telemetry.execute(
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[:pleroma, :connection_pool, :client_death],
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%{client_pid: pid, reason: reason},
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%{key: state.key}
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)
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_ref ->
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:telemetry.execute(
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[:pleroma, :connection_pool, :client_death],
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%{client_pid: pid, reason: reason},
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%{key: state.key}
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)
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handle_cast({:remove_client, pid}, state)
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end
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handle_cast({:remove_client, pid, false}, state)
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end
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# LRFU policy: https://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.1478
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