Files
pezkuwi-subxt/substrate
Robert Habermeier be5ff4e62f Minimal parachains part 2: Parachain statement and data routing (#173)
* dynamic inclusion threshold calculator

* collators interface

* collation helpers

* initial proposal-creation future

* create proposer when asked to propose

* remove local_availability duty

* statement table tracks includable parachain count

* beginnings of timing future

* finish proposal logic

* remove stray println

* extract shared table to separate module

* change ordering

* includability tracking

* fix doc

* initial changes to parachains module

* initialise dummy block before API calls

* give polkadot control over round proposer based on random seed

* propose only after enough candidates

* flesh out parachains module a bit more

* set_heads

* actually introduce set_heads to runtime

* update block_builder to accept parachains

* split block validity errors from real errors in evaluation

* update WASM runtimes

* polkadot-api methods for parachains additions

* delay evaluation until candidates are ready

* comments

* fix dynamic inclusion with zero initial

* test for includability tracker

* wasm validation of parachain candidates

* move primitives to primitives crate

* remove runtime-std dependency from codec

* adjust doc

* polkadot-parachain-primitives

* kill legacy polkadot-validator crate

* basic-add test chain

* test for basic_add parachain

* move to test-chains dir

* use wasm-build

* new wasm directory layout

* reorganize a bit more

* Fix for rh-minimal-parachain (#141)

* Remove extern "C"

We already encountered such behavior (bug?) in pwasm-std, I believe.

* Fix `panic_fmt` signature by adding `_col`

Wrong `panic_fmt` signature can inhibit some optimizations in LTO mode.

* Add linker flags and use wasm-gc in build script

Pass --import-memory to LLD to emit wasm binary with imported memory.

Also use wasm-gc instead of wasm-build.

* Fix effective_max.

I'm not sure why it was the way it was actually.

* Recompile wasm.

* Fix indent

* more basic_add tests

* validate parachain WASM

* produce statements on receiving statements

* tests for reactive statement production

* fix build

* add OOM lang item to runtime-io

* use dynamic_inclusion when evaluating as well

* fix update_includable_count

* remove dead code

* grumbles

* actually defer round_proposer logic

* update wasm

* address a few more grumbles

* schedule collation work as soon as BFT is started

* impl future in collator

* fix comment

* governance proposals for adding and removing parachains

* bump protocol version

* tear out polkadot-specific pieces of substrate-network

* extract out polkadot-specific stuff from substrate-network

* begin polkadot network subsystem

* grumbles

* update WASM checkins

* parse status from polkadot peer

* allow invoke of network specialization

* begin statement router implementation

* remove dependency on tokio-timer

* fix sanity check and have proposer factory create communication streams

* pull out statement routing from consensus library

* fix comments

* adjust typedefs

* extract consensus_gossip out of main network protocol handler

* port substrate-bft to new tokio

* port polkadot-consensus to new tokio

* fix typo

* start message processing task

* initial consensus network implementation

* remove known tracking from statement-table crate

* extract router into separate module

* defer statements until later

* double signature is invalid

* propagating statements

* grumbles

* request block data

* fix compilation

* embed new consensus network into service

* port demo CLI to tokio

* all test crates compile

* some tests for fetching block data

* whitespace

* adjusting some tokio stuff

* update exit-future

* remove overly noisy warning

* clean up collation work a bit

* address review grumbles

* fix lock order in protocol handler

* rebuild wasm artifacts

* tag AuthorityId::from_slice for std only

* address formatting grumbles

* rename event_loop to executor

* some more docs for polkadot-network crate
2018-07-06 14:17:03 +02:00
..
2018-04-04 12:06:39 +02:00
2017-11-10 12:36:47 +01:00
2018-06-20 18:49:01 +02:00
2017-11-07 19:15:12 +01:00
2017-11-07 19:15:12 +01:00
2018-06-25 11:42:33 +02:00
2018-07-03 17:44:43 +02:00

Polkadot

Implementation of a https://polkadot.io node in Rust.

To play

If you'd like to play with Polkadot, you'll need to install a client like this one. First, get Rust (1.26.1 or later) and the support software if you don't already have it:

curl https://sh.rustup.rs -sSf | sh
sudo apt install make clang

Then, install Polkadot PoC-1:

cargo install --git https://github.com/paritytech/polkadot.git --branch v0.1

You'll now have a polkadot binary installed to your PATH. You can drop the --branch v0.1 or run cargo install --git https://github.com/paritytech/polkadot.git polkadot to get the very latest version of Polkadot, but these instructions will not work in that case.

Development

You can run a simple single-node development "network" on your machine by running in a terminal:

polkadot --chain=dev --validator --key Alice

You can muck around by cloning and building the http://github.com/paritytech/polka-ui and http://github.com/paritytech/polkadot-ui or just heading to https://polkadot.js.org/apps.

PoC-1 Testnet

You can also connect to the global PoC-1 testnet. To do this, just use:

polkadot --chain=poc-1

If you want to do anything on it (not that there's much to do), then you'll need to get some PoC-1 testnet DOTs. Ask in the Polkadot watercooler.

Local Two-node Testnet

If you want to see the multi-node consensus algorithm in action locally, then you can create a local testnet. You'll need two terminals open. In one, run:

polkadot --chain=local --validator --key Alice -d /tmp/alice

and in the other, run:

polkadot --chain=local --validator --key Bob -d /tmp/bob --port 30334 --bootnodes 'enode://ALICE_BOOTNODE_ID_HERE@127.0.0.1:30333'

Ensure you replace ALICE_BOOTNODE_ID_HERE with the node ID from the output of the first terminal.

Hacking on Polkadot

If you'd actually like hack on Polkadot, you can just grab the source code and build it. Ensure you have Rust and the support software installed:

curl https://sh.rustup.rs -sSf | sh
rustup update nightly
rustup target add wasm32-unknown-unknown --toolchain nightly
rustup update stable
cargo install --git https://github.com/alexcrichton/wasm-gc
cargo install --git https://github.com/pepyakin/wasm-export-table.git
sudo apt install cmake pkg-config libssl-dev

Then, grab the Polkadot source code:

git clone https://github.com/paritytech/polkadot.git
cd polkadot

Then build the code:

./build.sh  # Builds the WebAssembly binaries
cargo build # Builds all native code

You can run the tests if you like:

cargo test --all

You can start a development chain with:

cargo run -- --chain=dev --validator --key Alice