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For security reasons, GvR requested that Idle's Python execution server process
connect to the Idle process, which listens for the connection. Since Idle has
only one client per server, this was not a limitation.
+---------------------------------+ +-------------+
| SocketServer.BaseRequestHandler | | SocketIO |
+---------------------------------+ +-------------+
^ | register() |
| | unregister()|
| +-------------+
| ^ ^
| | |
| + -------------------+ |
| | |
+-------------------------+ +-----------------+
| RPCHandler | | RPCClient |
| [attribute of RPCServer]| | |
+-------------------------+ +-----------------+
The RPCServer handler class is expected to provide register/unregister methods.
RPCHandler inherits the mix-in class SocketIO, which provides these methods.
See the Idle run.main() docstring for further information on how this was
accomplished in Idle.
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localcall:t ERRORs Bad request formats Unknown object id: %rt __methods__t OKt __attributes__s Unsupported method name: %rt CALLt QUEUEt QUEUEDs Unsupported message type: %ssU *** Internal Error: rpc.py:SocketIO.localcall()
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sR Handle messages received on the socket.
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taken from response_queue and sent across the link with the associated
sequence numbers. Messages in the queues are (sequence_number,
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from the request_queue is responsible for returning the correct
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