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79 lines
2.0 KiB
79 lines
2.0 KiB
1 year ago
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# frozen_string_literal: true
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class StreamingServerManager
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@running_thread = nil
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def initialize
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at_exit { stop }
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end
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def start(port: 4020)
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return if @running_thread
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queue = Queue.new
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@queue = queue
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@running_thread = Thread.new do
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Open3.popen2e(
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{
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'REDIS_NAMESPACE' => ENV.fetch('REDIS_NAMESPACE'),
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'DB_NAME' => "#{ENV.fetch('DB_NAME', 'mastodon')}_test#{ENV.fetch('TEST_ENV_NUMBER', '')}",
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'RAILS_ENV' => ENV.fetch('RAILS_ENV', 'test'),
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'NODE_ENV' => ENV.fetch('STREAMING_NODE_ENV', 'development'),
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'PORT' => port.to_s,
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},
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'node index.js', # must not call yarn here, otherwise it will fail because yarn does not send signals to its child process
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chdir: Rails.root.join('streaming')
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) do |_stdin, stdout_err, process_thread|
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status = :starting
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# Spawn a thread to listen on streaming server output
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output_thread = Thread.new do
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stdout_err.each_line do |line|
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Rails.logger.info "Streaming server: #{line}"
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if status == :starting && line.match('Streaming API now listening on')
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status = :started
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@queue.enq 'started'
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end
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end
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end
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# And another thread to listen on commands from the main thread
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loop do
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msg = queue.pop
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case msg
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when 'stop'
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# we need to properly stop the reading thread
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output_thread.kill
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# Then stop the node process
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Process.kill('KILL', process_thread.pid)
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# And we stop ourselves
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@running_thread.kill
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end
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end
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end
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end
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# wait for 10 seconds for the streaming server to start
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Timeout.timeout(10) do
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loop do
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break if @queue.pop == 'started'
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end
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end
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end
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def stop
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return unless @running_thread
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@queue.enq 'stop'
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# Wait for the thread to end
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@running_thread.join
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end
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end
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