class Async::Container::Statistics

Tracks various statistics relating to child instances in a container.

def << other

@parameter other [Statistics] The statistics to append.
Append another statistics instance into this one. 
def << other
	@spawns += other.spawns
	@restarts += other.restarts
	@failures += other.failures
end

def failed?

@returns [Boolean] If the failure count is greater than 0.
Whether there have been any failures. 
def failed?
	@failures > 0
end

def failure!

Increment the number of failures by 1. 
def failure!
	@failures += 1
end

def initialize

Initialize the statistics all to 0. 
def initialize
	@spawns = 0
	@restarts = 0
	@failures = 0
end

def restart!

Increment the number of restarts by 1. 
def restart!
	@restarts += 1
end

def spawn!

Increment the number of spawns by 1. 
def spawn!
	@spawns += 1
end