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|
#!/usr/bin/env ruby
$LOAD_PATH.push File.expand_path("../lib", __dir__)
require "celluloid/autostart"
# This example builds on basic_usage.rb to show two things about #async: the
# (new) fluent API and the preservation of causality order.
class Stack
include Celluloid
attr_reader :ary
def initialize
@ary = []
end
def push(x)
@ary.push x
end
alias << push
def pop
@ary.pop
end
def show
p @ary
end
end
st = Stack.new
# Schedule three calls to #push some integers on the stack. They will execute
# in order because the calls originated as a sequence of method calls in a
# single thread.
st.async << 1 << 2 << 3
# Schedule a call to show the stack after the three push calls execute.
st.async.show
# Schedule three calls to #pop from the stack.
st.async.pop.pop.pop
# The next (non-async) call is guaranteed to execute after methods previously
# scheduled in this thread. The causal order of calls (order as requested) is
# preserved in the execution order.
st.show
|
