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new_relic_agent
1.28.0
1.40.3
1.40.2
1.40.1
1.40.0
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1.38.0
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1.36.0
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1.34.0
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1.31.1
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1.29.0
1.28.0
1.27.8
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1.27.5
1.27.4
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1.27.1
1.27.0
1.26.0
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1.25.1
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1.24.0-rc.7
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1.23.0-rc.2
1.23.0-rc.1
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1.22.0
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1.21.0
1.21.0-rc.3
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1.20.0-rc.1
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1.19.5
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1.19.3
1.19.2
1.19.1
1.19.0
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1.18.3
1.18.2
1.18.1
1.18.0
1.18.0-rc.5
1.18.0-rc.4
1.18.0-rc.2
1.18.0-rc.1
1.17.1
1.17.0
1.17.0-rc.4
1.17.0-rc.3
1.17.0-rc.2
1.17.0-rc.1
1.17.0-rc.0
1.16.7
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1.16.4
1.16.3
1.16.2
1.16.1
1.16.0
1.16.0-rc.2
1.16.0-rc.1
1.16.0-rc.0
1.15.0
1.15.0-rc.3
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1.2.1
1.2.0
1.1.0
1.0.5
1.0.4
1.0.3
1.0.2
1.0.1
1.0.0
New Relic's Open-Source Elixir Agent
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lib/new_relic/signal_handler.ex
defmodule NewRelic.SignalHandler do
@moduledoc false
@behaviour :gen_event
# This signal handler exists so that we can shut down
# the NewRelic.Sampler.Beam process asap to avoid a race
# condition that can happen while `cpu_sup` shuts down
def start do
case Process.whereis(:erl_signal_server) do
pid when is_pid(pid) ->
# Get our signal handler installed before erlang's
:gen_event.delete_handler(:erl_signal_server, :erl_signal_handler, :ok)
:gen_event.add_handler(:erl_signal_server, __MODULE__, [])
:gen_event.add_handler(:erl_signal_server, :erl_signal_handler, [])
_ ->
:ok
end
end
def init(_) do
{:ok, %{}}
end
def handle_event(:sigterm, state) do
Process.whereis(NewRelic.Sampler.Beam) &&
GenServer.stop(NewRelic.Sampler.Beam)
{:ok, state}
end
def handle_event(_, state) do
{:ok, state}
end
def handle_call(_, state) do
{:ok, :ok, state}
end
def handle_info(_, state) do
{:ok, state}
end
def terminate(_reason, _state) do
:ok
end
def code_change(_old, state, _extra) do
{:ok, state}
end
end