Class: Forkr

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(forklet, num_kids = 1) ⇒ Forkr

Returns a new instance of Forkr.

Parameters:

  • forklet (Object) —

    the worker object

  • num_kids (Integer) (defaults to: 1) —

    how many children to spawn



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# File 'lib/forkr.rb', line 18

def initialize(forklet, num_kids = 1)
  @worker_client = forklet 
  @master_pid = $$
  @children = []
  @child_count = num_kids
  @in_shutdown = false
end

Instance Attribute Details

#child_count ⇒ Integer (readonly)

The number of children I should maintain This can be adjusted up or down with the TTIN and TTOU signals.

Returns:

  • (Integer) 


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# File 'lib/forkr.rb', line 10

def child_count
  @child_count
end

#children ⇒ Array<Fixnum> (readonly)

Child process pids.

Returns:

  • (Array<Fixnum>) 


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# File 'lib/forkr.rb', line 14

def children
  @children
end

#master_pid ⇒ Fixnum (readonly)

The PID of the Forkr master

Returns:

  • (Fixnum) 


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# File 'lib/forkr.rb', line 5

def master_pid
  @master_pid
end

Instance Method Details

#run ⇒ nil

Start the master, and spawn workers

Returns:

  • (nil) 


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# File 'lib/forkr.rb', line 28

def run
  @inbound, @outbound = IO.pipe
  Signal.trap('CHLD') { dead_child }
  Signal.trap('INT') { interrupt }
  Signal.trap('TERM') { shutdown }
  Signal.trap('QUIT') { core_dump_quit }
  Signal.trap('TTIN') { add_worker }
  Signal.trap('TTOU') { remove_worker }
  master_loop
end