Class: Rack::FiberPool

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

Constant Summary collapse

VERSION = 
'0.9.3'
SIZE = 
100

Instance Method Summary collapse

Constructor Details

#initialize(app, options = {}) {|@fiber_pool| ... } ⇒ FiberPool

The size of the pool is configurable:

use Rack::FiberPool, :size => 25

Yields:

  • (@fiber_pool) 


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# File 'lib/rack/fiber_pool.rb', line 11

def initialize(app, options={})
  @app = app
  @fiber_pool = ::FiberPool.new(options[:size] || SIZE)
  @rescue_exception = options[:rescue_exception] || Proc.new { |env, e| [500, {}, ["#{e.class.name}: #{e.message.to_s}"]] }
  yield @fiber_pool if block_given?
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack/fiber_pool.rb', line 18

def call(env)
  call_app = lambda do
    env['async.orig_callback'] = env.delete('async.callback')
    begin
      result = @app.call(env)
      env['async.orig_callback'].call result
    rescue ::Exception => e
      env['async.orig_callback'].call @rescue_exception.call(env, e)
    end
  end

  @fiber_pool.spawn(&call_app)
  throw :async
end