Observer pattern design

Ross Burton ross at
Mon May 23 11:29:49 PDT 2005

On Mon, 2005-05-23 at 15:06 -0300, Claudio Takahasi wrote:
> What is the correct design for a observer* pattern application using D-BUS?
> Suppose a wireless connection manager, when the signal is weak or
> the link is down, the connection manager must notify all connected clients.
> Implement the other side(clients requiresting  services) is trivial. There
> are a lot of sample addressing this context. However, for a observer
> pattern I was not able to figure out how implement it. I think use polling 
> is NOT a interesting approach.
> What are the possible implementations for this kind of D-BUS application? 

Send a signal when the state changes?

Ross Burton                                 mail: ross at
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