Commit 00a71831 authored by lain's avatar lain

Basic queue.

parent 2d9fdbcc
......@@ -18,7 +18,8 @@ def start(_type, _args) do
default_ttl: 25000,
ttl_interval: 1000,
limit: 2500
]])
]]),
worker(Pleroma.Web.Federator, [])
]
# See http://elixir-lang.org/docs/stable/elixir/Supervisor.html
......
defmodule Pleroma.Web.Federator do
use GenServer
alias Pleroma.User
alias Pleroma.Web.WebFinger
require Logger
@websub Application.get_env(:pleroma, :websub)
@max_jobs 10
def start_link do
GenServer.start_link(__MODULE__, {:sets.new(), :queue.new()}, name: __MODULE__)
end
def handle(:publish, activity) do
Logger.debug(fn -> "Running publish for #{activity.data["id"]}" end)
......@@ -28,11 +34,38 @@ def handle(type, payload) do
end
def enqueue(type, payload) do
# for now, just run immediately in a new process.
if Mix.env == :test do
handle(type, payload)
else
spawn(fn -> handle(type, payload) end)
GenServer.cast(__MODULE__, {:enqueue, type, payload})
end
end
def maybe_start_job(running_jobs, queue) do
if (:sets.size(running_jobs) < @max_jobs) && !:queue.is_empty(queue) do
{{:value, {type, payload}}, queue} = :queue.out(queue)
{:ok, pid} = Task.start(fn -> handle(type, payload) end)
mref = Process.monitor(pid)
{:sets.add_element(mref, running_jobs), queue}
else
{running_jobs, queue}
end
end
def handle_cast({:enqueue, type, payload}, {running_jobs, queue}) do
queue = :queue.in({type, payload}, queue)
{running_jobs, queue} = maybe_start_job(running_jobs, queue)
{:noreply, {running_jobs, queue}}
end
def handle_info({:DOWN, ref, :process, _pid, _reason}, {running_jobs, queue}) do
running_jobs = :sets.del_element(ref, running_jobs)
{running_jobs, queue} = maybe_start_job(running_jobs, queue)
{:noreply, {running_jobs, queue}}
end
def handle_cast(m, state) do
IO.inspect("Unknown: #{inspect(m)}, #{inspect(state)}")
{:noreply, state}
end
end
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