Class: Falcon::Command::Serve

Inherits:
Samovar::Command
  • Object
show all
Defined in:
lib/falcon/command/serve.rb

Instance Method Summary collapse

Instance Method Details

#client ⇒ Object 



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# File 'lib/falcon/command/serve.rb', line 90

def client
  Async::HTTP::Client.new(client_endpoint)
end

#client_endpoint ⇒ Object 



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# File 'lib/falcon/command/serve.rb', line 86

def client_endpoint
  Async::HTTP::URLEndpoint.parse(@options[:bind], **endpoint_options)
end

#container_class ⇒ Object 



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# File 'lib/falcon/command/serve.rb', line 54

def container_class
  case @options[:container]
  when :threaded
    require 'async/container/threaded'
    return Async::Container::Threaded
  when :forked
    require 'async/container/forked'
    return Async::Container::Forked
  end
end

#endpoint_options ⇒ Object 



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# File 'lib/falcon/command/serve.rb', line 71

def endpoint_options
  # Oh, for Hash#slice(keys...)
  options = {}
  
  if @options[:hostname]
    options[:hostname] = @options[:hostname]
  end
  
  if @options[:port]
    options[:port] = @options[:port]
  end
  
  return options
end

#invoke(parent) ⇒ Object 



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# File 'lib/falcon/command/serve.rb', line 125

def invoke(parent)
  container = run(parent.verbose?)
  
  container.wait
end

#load_app(verbose) ⇒ Object 



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# File 'lib/falcon/command/serve.rb', line 65

def load_app(verbose)
  rack_app, options = Rack::Builder.parse_file(@options[:config])
  
  return Server.middleware(rack_app, verbose: verbose), options
end

#run(verbose = false) ⇒ Object 



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# File 'lib/falcon/command/serve.rb', line 94

def run(verbose = false)
  app, options = load_app(verbose)
  
  endpoint = Endpoint.parse(@options[:bind], **endpoint_options)
  
  bound_endpoint = Async::Reactor.run do
    Async::IO::SharedEndpoint.bound(endpoint)
  end.result
  
  Async.logger.info "Falcon taking flight! Binding to #{endpoint} [#{container_class} with concurrency: #{@options[:concurrency]}]"
  
  debug_trap = Async::IO::Trap.new(:USR1)
  
  container_class.new(concurrency: @options[:concurrency]) do |task|
    task.async do
      debug_trap.install!
      Async.logger.info "Send `kill -USR1 #{Process.pid}` for detailed status :)"
      
      debug_trap.trap do
        task.reactor.print_hierarchy($stderr)
      end
    end
    
    server = Falcon::Server.new(app, bound_endpoint, endpoint.protocol)
    
    server.run
    
    task.children.each(&:wait)
  end
end