Class: Phronomy::Runtime::TaskRegistry Private

Inherits:
Object
  • Object
show all
Defined in:
lib/phronomy/runtime/task_registry.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Internal registry of active Task instances for a Phronomy::Runtime.

Tracks every task that has been spawned but not yet completed so that #shutdown can drain them. Tasks that complete synchronously (e.g. under FakeScheduler / ImmediateBackend) deregister themselves before the caller returns from #spawn, so they are never added to the registry in the first place.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ TaskRegistry

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of TaskRegistry.



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# File 'lib/phronomy/runtime/task_registry.rb', line 14

def initialize
  @mutex = Mutex.new
  @tasks = []
end

Instance Method Details

#deregister(task) ⇒ void

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

This method returns an undefined value.

Removes +task+ from the registry (called from the task's ensure block).

Parameters:



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# File 'lib/phronomy/runtime/task_registry.rb', line 31

def deregister(task)
  @mutex.synchronize { @tasks.delete(task) }
end

#drain ⇒ void

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

This method returns an undefined value.

Waits for all registered tasks to finish (used by Phronomy::Runtime#shutdown).



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# File 'lib/phronomy/runtime/task_registry.rb', line 38

def drain
  tasks = @mutex.synchronize { @tasks.dup }
  tasks.each do |t|
    t.join
  rescue
    nil
  end
end

#register(task) ⇒ void

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

This method returns an undefined value.

Adds +task+ to the registry unless it already completed synchronously.

Parameters:



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# File 'lib/phronomy/runtime/task_registry.rb', line 23

def register(task)
  @mutex.synchronize { @tasks << task unless task.done? }
end