4.20.6 In-Depth Explanation of AWS Architecture

This section contains some information about the internal nature and architecture of AWS.

Signal, Slot, Sources Contract

This section explains the contract between signals, slots, and sources from a reference standpoint.

A signal source maintains a list of slots. Thus, a source maintains a list of references to each slot connected to it. A slot maintains a list of sinks that it is connected to. The sink manager keeps a list of sinks, and thus also keeps a reference to each sink. Once a sink has been registered it cannot be unregistered. This may be changed in the future, but it is important to remember that a sink can not go away until all slots bound to it go away. The same may be said for slots: a slot cannot go away until the signal source it is connected to disconnects. A slot may be disconnected from a signal source at any time.

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