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absinthe
1.6.3
1.11.0
1.10.2
1.10.1
1.10.0
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1.9.0
1.8.0
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1.7.10
1.7.9
1.7.8
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1.7.6
1.7.5
1.7.4
1.7.3
1.7.2
1.7.1
1.7.0
1.6.8
1.6.7
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1.6.6
1.6.5
1.6.4
1.6.3
1.6.2
1.6.1
1.6.0
1.6.0-rc.1
1.6.0-rc.0
1.5.5
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1.5.3
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1.5.0-alpha.3
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1.5.0-alpha.1
1.5.0-alpha.0
1.4.16
1.4.15
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1.4.12
1.4.11
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1.4.8
retired
1.4.7
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1.4.0-rc.0
1.4.0-beta.5
1.4.0-beta.4
1.4.0-beta.3
1.4.0-beta.2
1.4.0-beta.1
1.3.2
1.3.1
1.3.0
1.3.0-rc.0
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1.3.0-beta.1
1.3.0-beta.0
1.2.6
1.2.5
1.2.4
1.2.3
1.2.2
1.2.1
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1.2.0-rc.0
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1.2.0-alpha0
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1.1.11
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0.4.2
0.4.1
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0.2.2
0.2.1
0.1.0
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Files
lib/absinthe/subscription/proxy.ex
defmodule Absinthe.Subscription.Proxy do
@moduledoc false
use GenServer
defstruct [
:pubsub,
:node,
:task_super
]
def child_spec([_, _, shard] = args) do
%{
id: {__MODULE__, shard},
start: {__MODULE__, :start_link, [args]}
}
end
alias Absinthe.Subscription
@gc_interval 5_000
def start_link(args) do
GenServer.start_link(__MODULE__, args)
end
def topic(shard), do: "__absinthe__:proxy:#{shard}"
def init([task_super, pubsub, shard]) do
node_name = pubsub.node_name()
:ok = pubsub.subscribe(topic(shard))
Process.send_after(self(), :gc, @gc_interval)
{:ok, %__MODULE__{pubsub: pubsub, node: node_name, task_super: task_super}}
end
def handle_info(:gc, state) do
:erlang.garbage_collect()
Process.send_after(self(), :gc, @gc_interval)
{:noreply, state}
end
def handle_info(payload, state) do
# There's no meaningful form of backpressure to have here, and we can't
# bottleneck execution inside each proxy process
unless payload.node == state.pubsub.node_name() do
Task.Supervisor.start_child(state.task_super, Subscription.Local, :publish_mutation, [
state.pubsub,
payload.mutation_result,
payload.subscribed_fields
])
end
{:noreply, state}
end
end