* More doc fixes. * Minor refactorings in the process of #2177 By having everything peer set related depend directly on the enum the code becomes more clear and it is also straight forward to add more peersets/protocols as the compiler will complain if you forget to implement parts of it. * Add peer set infos on startup properly For feature real_overseer. + Fixes from review. Thanks @coriolinus and @ordian! * More structure in network-bridge Some changes, which would have helped me in groking the code faster. Entry points/public types more to the top. Factored out implementation in their own files, to clear up the top-level view. * Get rid of local ProtocolName type definition. Does not add much at this level. * Fix tests + import cleanup. * Make spaces tabs. * Clarify what correct parameters to send_message are * Be more less vague in docs of send_message. * Apply suggestions from code review Extend copyright on new files to 2021 as well. Co-authored-by: Andronik Ordian <write@reusable.software> Co-authored-by: Andronik Ordian <write@reusable.software>
Preamble
This document aims to describe the purpose, functionality, and implementation of the host for Polkadot's parachains functionality - that is, the software which provides security and advancement for constituent parachains. It is not for the implementer of a specific parachain but rather for the implementer of the Parachain Host. In practice, this is for the implementers of Polkadot in general.
There are a number of other documents describing the research in more detail. All referenced documents will be linked here and should be read alongside this document for the best understanding of the full picture. However, this is the only document which aims to describe key aspects of Polkadot's particular instantiation of much of that research down to low-level technical details and software architecture.