* rename overseer-gen to orchestra Also drop `gum` and use `tracing`. * make orchestra compile as standalone * introduce Spawner trait to split from sp_core Finalizes the independence of orchestra from polkadot-overseer * slip of the pen * other fixins * remove unused import * Update node/overseer/orchestra/proc-macro/src/impl_builder.rs Co-authored-by: Vsevolod Stakhov <vsevolod.stakhov@parity.io> * Update node/overseer/orchestra/proc-macro/src/impl_builder.rs Co-authored-by: Vsevolod Stakhov <vsevolod.stakhov@parity.io> * orchestra everywhere * leaky data * Bump scale-info from 2.1.1 to 2.1.2 (#5552) Bumps [scale-info](https://github.com/paritytech/scale-info) from 2.1.1 to 2.1.2. - [Release notes](https://github.com/paritytech/scale-info/releases) - [Changelog](https://github.com/paritytech/scale-info/blob/master/CHANGELOG.md) - [Commits](https://github.com/paritytech/scale-info/compare/v2.1.1...v2.1.2) --- updated-dependencies: - dependency-name: scale-info dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * Add missing markdown code block delimiter (#5555) * bitfield-signing: remove util::jobs usage (#5523) * Switch to pooling copy-on-write instantiation strategy for WASM (companion for Substrate#11232) (#5337) * Switch to pooling copy-on-write instantiation strategy for WASM * Fix compilation of `polkadot-test-service` * Update comments * Move `max_memory_size` to `Semantics` * Rename `WasmInstantiationStrategy` to `WasmtimeInstantiationStrategy` * Update a safety comment * update lockfile for {"substrate"} Co-authored-by: parity-processbot <> * Fix build Co-authored-by: Vsevolod Stakhov <vsevolod.stakhov@parity.io> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Malte Kliemann <mail@maltekliemann.com> Co-authored-by: Chris Sosnin <48099298+slumber@users.noreply.github.com> Co-authored-by: Koute <koute@users.noreply.github.com>
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.