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Class: Puma::Single

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Runner
Instance Chain:
self, Runner, Const::PipeRequest
Inherits: Puma::Runner
Defined in: lib/puma/single.rb

Overview

This class is instantiated by the Launcher and used to boot and serve a Ruby application when no puma “workers” are needed i.e. only using “threaded” mode. For example $ puma -t 1:5

At the core of this class is running an instance of Server which gets created via the start_server method from the Runner class that this inherits from.

Constant Summary

Const::PipeRequest - Included

PIPE_BOOT, PIPE_EXTERNAL_TERM, PIPE_FORK, PIPE_IDLE, PIPE_PING, PIPE_TERM, PIPE_WAKEUP

Class Method Summary

Runner - Inherited

.new

Instance Attribute Summary

Runner - Inherited

#app, #development?,
#options

Returns the hash of configuration options.
#redirected_io?, #ruby_engine, #test?

Instance Method Summary

Runner - Inherited

#close_control_listeners, #debug, #error, #load_and_bind, #log, #output_header, #redirect_io, #start_control, #start_server, #stop_control, #wakeup!,
#debug_loaded_extensions

this method call should always be guarded by @log_writer.debug?.
#ensure_output_directory_exists, #stats, #utc_iso8601

Constructor Details

This class inherits a constructor from Puma::Runner

Instance Attribute Details

#stats (readonly)

[ GitHub ] 

  


# File 'lib/puma/single.rb', line 17



def stats
  {
    started_at: utc_iso8601(@started_at)
  }.merge(@server.stats).merge(super)
end


  







Instance Method Details



  

    #halt  
  

  [ GitHub ]


  

  


# File 'lib/puma/single.rb', line 31



def halt
  @server&.halt
end


  








  

    #restart  
  

  [ GitHub ]


  

  


# File 'lib/puma/single.rb', line 23



def restart
  @server&.begin_restart
end


  








  

    #run  
  

  [ GitHub ]


  

  


# File 'lib/puma/single.rb', line 41



def run
  output_header "single"

  load_and_bind

  Plugins.fire_background

  @launcher.write_state

  start_control

  @server = server = start_server
  server_thread = server.run

  log "Use Ctrl-C to stop"
  redirect_io

  @events.fire_on_booted!

  debug_loaded_extensions("Loaded Extensions:") if @log_writer.debug?

  begin
    server_thread.join
  rescue Interrupt
    # Swallow it
  end
end


  








  

    #stop  
  

  [ GitHub ]


  

  


# File 'lib/puma/single.rb', line 27



def stop
  @server&.stop false
end


  








  

    #stop_blocked  
  

  [ GitHub ]


  

  


# File 'lib/puma/single.rb', line 35



def stop_blocked
  log "- Gracefully stopping, waiting for requests to finish"
  @control&.stop true
  @server&.stop true
end