Graham McIntire
288b9fbbb2
- Fix SQL injection in partition_manager, db_optimizer, and release.ex - Fix XSS vulnerabilities with proper HTML escaping in LiveViews - Add proper error handling for email delivery functions - Fix race conditions with advisory locks and atomic operations - Replace unsupervised spawn/Task.start with supervised alternatives - Convert ETS operations to GenServer serialization for thread safety - Change ETS tables from :public to :protected access - Add client limits to prevent unbounded memory growth - Add PubSub cleanup in GenServer terminate callbacks - Fix device upsert to use atomic Repo.insert_all
39 lines
947 B
Elixir
39 lines
947 B
Elixir
defmodule Aprsme.SignalHandler do
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@moduledoc """
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Handles OS signals like SIGTERM for graceful shutdown.
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"""
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use GenServer
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require Logger
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def start_link(opts) do
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GenServer.start_link(__MODULE__, opts, name: __MODULE__)
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end
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def init(_opts) do
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# Install signal handler for SIGTERM
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# :os.set_signal/2 always returns :ok
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:ok = :os.set_signal(:sigterm, :handle)
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Logger.info("SIGTERM signal handler installed")
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{:ok, %{}}
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end
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# Handle SIGTERM signal
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def handle_info({:signal, :sigterm}, state) do
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Logger.info("Received SIGTERM signal, initiating graceful shutdown...")
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# Trigger graceful shutdown with spawn_link to ensure cleanup if parent crashes
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spawn_link(fn ->
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Aprsme.ShutdownHandler.shutdown()
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end)
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{:noreply, state}
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end
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def handle_info(msg, state) do
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Logger.debug("SignalHandler received unexpected message: #{inspect(msg)}")
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{:noreply, state}
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end
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end
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