| Class | DRb::DRbObject |
| In: |
lib/drb/drb.rb
lib/drb/eq.rb lib/drb/gw.rb |
| Parent: | Object |
# File lib/drb/gw.rb, line 35
35: def self._load(s)
36: uri, ref = Marshal.load(s)
37: if DRb.uri == uri
38: return ref ? DRb.to_obj(ref) : DRb.front
39: end
40:
41: self.new_with(DRb.uri, [:DRbObject, uri, ref])
42: end
Unmarshall a marshalled DRbObject.
If the referenced object is located within the local server, then the object itself is returned. Otherwise, a new DRbObject is created to act as a stub for the remote referenced object.
# File lib/drb/drb.rb, line 1008
1008: def self._load(s)
1009: uri, ref = Marshal.load(s)
1010:
1011: if DRb.here?(uri)
1012: obj = DRb.to_obj(ref)
1013: if ((! obj.tainted?) && Thread.current[:drb_untaint])
1014: Thread.current[:drb_untaint].push(obj)
1015: end
1016: return obj
1017: end
1018:
1019: self.new_with(uri, ref)
1020: end
Create a new remote object stub.
obj is the (local) object we want to create a stub for. Normally this is nil. uri is the URI of the remote object that this will be a stub for.
# File lib/drb/drb.rb, line 1046
1046: def initialize(obj, uri=nil)
1047: @uri = nil
1048: @ref = nil
1049: if obj.nil?
1050: return if uri.nil?
1051: @uri, option = DRbProtocol.uri_option(uri, DRb.config)
1052: @ref = DRbURIOption.new(option) unless option.nil?
1053: else
1054: @uri = uri ? uri : (DRb.uri rescue nil)
1055: @ref = obj ? DRb.to_id(obj) : nil
1056: end
1057: end
# File lib/drb/drb.rb, line 1022
1022: def self.new_with(uri, ref)
1023: it = self.allocate
1024: it.instance_variable_set('@uri', uri)
1025: it.instance_variable_set('@ref', ref)
1026: it
1027: end
# File lib/drb/drb.rb, line 1119
1119: def self.prepare_backtrace(uri, result)
1120: prefix = "(#{uri}) "
1121: bt = []
1122: result.backtrace.each do |x|
1123: break if /`__send__'$/ =~ x
1124: if /^\(druby:\/\// =~ x
1125: bt.push(x)
1126: else
1127: bt.push(prefix + x)
1128: end
1129: end
1130: bt
1131: end
# File lib/drb/drb.rb, line 1108
1108: def self.with_friend(uri)
1109: friend = DRb.fetch_server(uri)
1110: return yield() unless friend
1111:
1112: save = Thread.current['DRb']
1113: Thread.current['DRb'] = { 'server' => friend }
1114: return yield
1115: ensure
1116: Thread.current['DRb'] = save if friend
1117: end
# File lib/drb/eq.rb, line 5 5: def ==(other) 6: return false unless DRbObject === other 7: (@ref == other.__drbref) && (@uri == other.__drburi) 8: end
Get the reference of the object, if local.
# File lib/drb/drb.rb, line 1065
1065: def __drbref
1066: @ref
1067: end
# File lib/drb/gw.rb, line 44
44: def _dump(lv)
45: if DRb.uri == @uri
46: if Array === @ref && @ref[0] == :DRbObject
47: Marshal.dump([@ref[1], @ref[2]])
48: else
49: Marshal.dump([@uri, @ref]) # ??
50: end
51: else
52: Marshal.dump([DRb.uri, [:DRbObject, @uri, @ref]])
53: end
54: end
Routes method calls to the referenced object.
# File lib/drb/drb.rb, line 1084
1084: def method_missing(msg_id, *a, &b)
1085: if DRb.here?(@uri)
1086: obj = DRb.to_obj(@ref)
1087: DRb.current_server.check_insecure_method(obj, msg_id)
1088: return obj.__send__(msg_id, *a, &b)
1089: end
1090:
1091: succ, result = self.class.with_friend(@uri) do
1092: DRbConn.open(@uri) do |conn|
1093: conn.send_message(self, msg_id, a, b)
1094: end
1095: end
1096:
1097: if succ
1098: return result
1099: elsif DRbUnknown === result
1100: raise result
1101: else
1102: bt = self.class.prepare_backtrace(@uri, result)
1103: result.set_backtrace(bt + caller)
1104: raise result
1105: end
1106: end