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Diffstat (limited to 'jni/ruby/sample/drb/simpletuple.rb')
-rw-r--r-- | jni/ruby/sample/drb/simpletuple.rb | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/jni/ruby/sample/drb/simpletuple.rb b/jni/ruby/sample/drb/simpletuple.rb new file mode 100644 index 0000000..bfbd86e --- /dev/null +++ b/jni/ruby/sample/drb/simpletuple.rb @@ -0,0 +1,91 @@ +#!/usr/local/bin/ruby +# SimpleTupleSpace +# Copyright (c) 1999-2000 Masatoshi SEKI +# You can redistribute it and/or modify it under the same terms as Ruby. + +require 'thread' + +class SimpleTupleSpace + def initialize + @hash = {} + @waiting = {} + @hash.taint + @waiting.taint + self.taint + end + + def out(key, obj) + Thread.critical = true + @hash[key] ||= [] + @waiting[key] ||= [] + @hash[key].push obj + begin + t = @waiting[key].shift + @waiting.delete(key) if @waiting[key].length == 0 + t.wakeup if t + rescue ThreadError + retry + ensure + Thread.critical = false + end + end + + def in(key) + Thread.critical = true + @hash[key] ||= [] + @waiting[key] ||= [] + begin + loop do + if @hash[key].length == 0 + @waiting[key].push Thread.current + Thread.stop + else + return @hash[key].shift + end + end + ensure + @hash.delete(key) if @hash[key].length == 0 + Thread.critical = false + end + end +end + +if __FILE__ == $0 + ts = SimpleTupleSpace.new + clients = [] + servers = [] + + def server(ts) + Thread.start { + loop do + req = ts.in('req') + ac = req[0] + num = req[1] + ts.out(ac, num * num) + end + } + end + + def client(ts, n) + Thread.start { + ac = Object.new + ts.out('req', [ac, n]) + ans = ts.in(ac) + puts "#{n}: #{ans}" + } + end + + 3.times do + servers.push(server(ts)) + end + + (1..6).each do |n| + clients.push(client(ts, n)) + end + + clients.each do |t| + t.join + end +end + + |