Class: ConcurrentRails::Multi

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(actions, executor) ⇒ Multi

Returns a new instance of Multi.



11
12
13
14
15
 
# File 'lib/concurrent_rails/multi.rb', line 11

def initialize(actions, executor)
  @actions    = actions
  @executor   = executor
  @exceptions = Concurrent::Array.new
end

Class Method Details

.enqueue(*actions, executor: :io) ⇒ Object

Raises:

  • (ArgumentError) 


5
6
7
8
9
 
# File 'lib/concurrent_rails/multi.rb', line 5

def self.enqueue(*actions, executor: :io)
  raise ArgumentError, "#enqueue accepts `Proc`s only" unless actions.all?(Proc)

  new(actions, executor).enqueue
end

Instance Method Details

#complete? ⇒ Boolean

Returns:

  • (Boolean) 


35
36
37
 
# File 'lib/concurrent_rails/multi.rb', line 35

def complete?
  futures.all?(&:complete?)
end

#compute ⇒ Object 



27
28
29
 
# File 'lib/concurrent_rails/multi.rb', line 27

def compute
  futures.map(&:value)
end

#compute! ⇒ Object 



31
32
33
 
# File 'lib/concurrent_rails/multi.rb', line 31

def compute!
  futures.map(&:value!)
end

#enqueue ⇒ Object 



17
18
19
20
21
22
23
24
25
 
# File 'lib/concurrent_rails/multi.rb', line 17

def enqueue
  @futures = actions.map do |action|
    f = ConcurrentRails::Future.new(executor: executor, &action)
    f.add_observer(self)
    f.execute
  end

  self
end

#errors ⇒ Object 



39
40
41
 
# File 'lib/concurrent_rails/multi.rb', line 39

def errors
  @exceptions
end