Class: Fairy::Fairy

Inherits:
Object
  • Object
show all
Defined in:
lib/fairy.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(master_host = CONF.MASTER_HOST, master_port = CONF.MASTER_PORT, opts = {}) ⇒ Fairy

Returns a new instance of Fairy.



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# File 'lib/fairy.rb', line 61

def initialize(master_host = CONF.MASTER_HOST, 
 master_port = CONF.MASTER_PORT,
 opts = {})

  if master_host.kind_of?(Hash)
  opts = master_host
  master_host = CONF.MASTER_HOST
  master_port = CONF.MASTER_PORT
  end

  ::Fairy::REPLACE_CONF(Conf.new(CONF, opts))

  Thread.abort_on_exception = CONF.DEBUG_THREAD_ABORT_ON_EXCEPTION

  @name2backend_class = {}

  @deep_connect = DeepConnect.start(0)
  @master_deepspace = @deep_connect.open_deepspace(master_host, master_port)
  @master = @master_deepspace.import("Master")

  @controller = @master.assgin_controller
  @controller.connect(self, CONF)

  @logger = @master.logger
  Log.type = "[c]"
  Log.pid = @controller.id
  Log.logger = @logger
  Log.set_local_output_dev
  Log::info self, "fairy connected!!"
  Log::info self, "\tfairy version: #{Version}"
  Log::info(self, "\t[Powered By #{RUBY_DESCRIPTION}]") 


  begin
  require "fairy.so"
  Log::warn self, "\t Load fairy.so"
  rescue LoadError
  Log::warn self, "Can't load fairy.so. Can't use this feature"
  end

  @stdout_mutex = Mutex.new

  if CONF.DEBUG_MONITOR_ON
  Log::info self, "MONITOR NODE: ON"
  require "fairy/share/debug"
  Debug::njob_status_monitor_on(self)
  end
end

Instance Attribute Details

#controller ⇒ Object (readonly)

Returns the value of attribute controller.



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# File 'lib/fairy.rb', line 125

def controller
  @controller
end

Class Method Details

.create_subfairy(fairy) ⇒ Object 



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# File 'lib/fairy.rb', line 55

def self.create_subfairy(fairy)
  subfairy = Fairy.allocate
  subfairy.initialize_subfairy(fairy)
  subfairy
end

.def_fairy_interface(mod) ⇒ Object

external module loading



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# File 'lib/fairy.rb', line 174

def self.def_fairy_interface(mod)
  include mod
end

.def_filter_interface(mod) ⇒ Object 



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# File 'lib/fairy/client/filter.rb', line 15

def Fairy.def_filter_interface(mod)
  ::Fairy.def_filter_interface(mod)
end

Instance Method Details

#abort ⇒ Object 



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# File 'lib/fairy.rb', line 127

def abort
  @master.terminate_controller(@controller)
end

#def_pool_variable(vname, value = nil) ⇒ Object

pool variables



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# File 'lib/fairy.rb', line 143

def def_pool_variable(vname, value = nil)
  @controller.def_pool_variable(vname, value)
end

#handle_exception(exp) ⇒ Object

exception handling



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# File 'lib/fairy.rb', line 152

def handle_exception(exp)
  local_exp = nil
  Log::debug(self, "exception raised: #{exp.class}")
  Log::debug_exception(self, exp)
  begin
  local_exp = exp.dc_deep_copy
  rescue Exception
  Thread.main.raise exp
  raise exp
  end
  Thread.main.raise local_exp
  nil
end

#initialize_subfairy(fairy) ⇒ Object 



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# File 'lib/fairy.rb', line 110

def initialize_subfairy(fairy)
  @name2backend_class = {}
  @deep_connect = fairy.instance_eval{@deep_connect}
  @master_deepspace = fairy.instance_eval{@master_deepspace}
  @master = fairy.instance_eval{@master}

  @controller = @master.assgin_controller
  @controller.connect(self, CONF)
  
  # Logは親と共有される
  # なので, IDは親と同じになる(process idなので当たり前)
  
  @stdout_mutex = fairy.instance_eval{@stdout_mutex}
end

#name2backend_class(backend_class_name) ⇒ Object 



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# File 'lib/fairy.rb', line 131

def name2backend_class(backend_class_name)
  if klass = @name2backend_class[backend_class_name]
  return klass 
  end
  
  if klass =  @controller.import(backend_class_name)
  @name2backend_class[backend_class_name] = klass
  end
  klass
end

#pool_variable(vname, *value) ⇒ Object 



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# File 'lib/fairy.rb', line 147

def pool_variable(vname, *value)
  @controller.pool_variable(vname, *value)
end

#stdout_write(str) ⇒ Object

debug print



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# File 'lib/fairy.rb', line 167

def stdout_write(str)
  @stdout_mutex.synchronize do
  $stdout.write(str)
  end
end