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Communications Concurrency Base

Goals.

Polling for connection, direct or indirect, is not good thing on mobile environment. Polling requires own activity, that then is continuously eating device resources. Device platform architecture might not support polling approach, for example SymbianOS. Therefore if using polling it should be abstracted to event notifications, so that it is possible to substitute by non-poll implementation.

Use of linux signals to notify read ready events on sockets ? Python ?