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Diffstat (limited to 'jni/ruby/sample/drb/name.rb')
-rw-r--r-- | jni/ruby/sample/drb/name.rb | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/jni/ruby/sample/drb/name.rb b/jni/ruby/sample/drb/name.rb new file mode 100644 index 0000000..9527d47 --- /dev/null +++ b/jni/ruby/sample/drb/name.rb @@ -0,0 +1,117 @@ +=begin + distributed Ruby --- NamedObject Sample + Copyright (c) 2000-2001 Masatoshi SEKI +=end + +=begin +How to play. + +* start server + Terminal 1 + | % ruby name.rb druby://yourhost:7640 + | druby://yourhost:7640 + | [return] to exit + +* start client + Terminal 2 + | % ruby namec.rb druby://yourhost:7640 + | #<DRb::DRbObject:0x40164174 @uri="druby://yourhost:7640", @ref="seq"> + | #<DRb::DRbObject:0x40163c9c @uri="druby://yourhost:7640", @ref="mutex"> + | 1 + | 2 + | [return] to continue + +* restart server + Terminal 1 + type [return] + | % ruby name.rb druby://yourhost:7640 + | druby://yourhost:7640 + | [return] to exit + +* continue client + Terminal 2 + type [return] + | 1 + | 2 +=end + +require 'thread.rb' +require 'drb/drb' + +module DRbNamedObject + DRbNAMEDICT = {} + attr_reader(:drb_name) + + def drb_name=(name) + @drb_name = name + Thread.exclusive do + raise(IndexError, name) if DRbNAMEDICT[name] + DRbNAMEDICT[name] = self + end + end +end + +class DRbNamedIdConv < DRb::DRbIdConv + def initialize + @dict = DRbNamedObject::DRbNAMEDICT + end + + def to_obj(ref) + @dict.fetch(ref) do super end + end + + def to_id(obj) + if obj.kind_of? DRbNamedObject + return obj.drb_name + else + return super + end + end +end + +class Seq + include DRbUndumped + include DRbNamedObject + + def initialize(v, name) + @counter = v + @mutex = Mutex.new + self.drb_name = name + end + + def next_value + @mutex.synchronize do + @counter += 1 + return @counter + end + end +end + +class Front + def initialize + seq = Seq.new(0, 'seq') + mutex = Mutex.new + mutex.extend(DRbUndumped) + mutex.extend(DRbNamedObject) + mutex.drb_name = 'mutex' + @name = {} + @name['seq'] = seq + @name['mutex'] = mutex + end + + def [](k) + @name[k] + end +end + +if __FILE__ == $0 + uri = ARGV.shift + + name_conv = DRbNamedIdConv.new + + DRb.install_id_conv(name_conv) + DRb.start_service(uri, Front.new) + puts DRb.uri + DRb.thread.join +end + |