Robert Habermeier
3b13cd9a85
* create a v1 primitives module * Improve guide on availability types * punctuate * new parachains runtime uses new primitives * tests of new runtime now use new primitives * add ErasureChunk to guide * export erasure chunk from v1 primitives * subsystem crate uses v1 primitives * node-primitives uses new v1 primitives * port overseer to new primitives * new-proposer uses v1 primitives (no ParachainHost anymore) * fix no-std compilation for primitives * service-new uses v1 primitives * network-bridge uses new primitives * statement distribution uses v1 primitives * PoV distribution uses v1 primitives; add PoV::hash fn * move parachain to v0 * remove inclusion_inherent module and place into v1 * remove everything from primitives crate root * remove some unused old types from v0 primitives * point everything else at primitives::v0 * squanch some warns up * add RuntimeDebug import to no-std as well * port over statement-table and validation * fix final errors in validation and node-primitives * add dummy Ord impl to committed candidate receipt * guide: update CandidateValidationMessage * add primitive for validationoutputs * expand CandidateValidationMessage further * bikeshed * add some impls to omitted-validation-data and available-data * expand CandidateValidationMessage * make erasure-coding generic over v1/v0 * update usages of erasure-coding * implement commitments.hash() * use Arc<Pov> for CandidateValidation * improve new erasure-coding method names * fix up candidate backing * update docs a bit * fix most tests and add short-circuiting to make_pov_available * fix remainder of candidate backing tests * squanching warns * squanch it up * some fallout * overseer fallout * free from polkadot-test-service hell
Preamble
This document aims to describe the purpose, functionality, and implementation of a host for Polkadot's parachains. It is not for the implementer of a specific parachain but rather for the implementer of the Parachain Host, which provides security and advancement for constituent parachains. In practice, this is for the implementers of Polkadot.
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.