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https://github.com/pezkuwichain/pezkuwi-subxt.git
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Collator for the "adder" (formerly basic-add) parachain and various small fixes (#438)
* update basic_add wasm * wasm feature and collator feature * move test parachains around a little * fix wasm build for basic_add * move basic_add to adder, introduce README * minimal basic_add collator * ensure collator messages are sent in the right order * more logging * route consensus statements to all peers * minor bugfixes for parachains * genesis builder accounts for parachain heads * fix parachains tests * targets for txpool * tweak runtime + collator * fix version in adder-collator * consistency for overflowing * adjust comment * fix stable test run * remove dummy registration test * final grumbles
This commit is contained in:
Robert Habermeier
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GitHub
GitHub
parent
f5aa4f6f79
commit
f4cd995558
@@ -1,2 +0,0 @@
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target/
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Cargo.lock
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@@ -1,25 +0,0 @@
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[package]
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name = "basic_add"
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version = "0.1.0"
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authors = ["Parity Technologies <admin@parity.io>"]
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description = "Test parachain which adds to a number as its state transition"
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[lib]
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crate-type = ["cdylib"]
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[dependencies]
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polkadot-parachain = { path = "../../", default-features = false }
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wee_alloc = "0.4.1"
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tiny-keccak = "1.4"
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pwasm-libc = "0.2"
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[features]
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default = ["std"]
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std = ["polkadot-parachain/std"]
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[profile.release]
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panic = "abort"
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lto = true
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[workspace]
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members = []
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@@ -1,12 +0,0 @@
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#!/usr/bin/env bash
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set -e
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# Make LLD produce a binary that imports memory from the outside environment.
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export RUSTFLAGS="-C link-arg=--import-memory"
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cargo +nightly build --target=wasm32-unknown-unknown --release --no-default-features
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for i in basic_add
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do
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wasm-gc target/wasm32-unknown-unknown/release/$i.wasm target/wasm32-unknown-unknown/release/$i.compact.wasm
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done
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@@ -1,142 +0,0 @@
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// Copyright 2017 Parity Technologies (UK) Ltd.
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// This file is part of Polkadot.
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// Polkadot is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Polkadot is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
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//! Basic parachain that adds a number as part of its state.
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#![cfg_attr(not(feature = "std"), no_std)]
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#![cfg_attr(
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not(feature = "std"),
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feature(
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alloc, core_intrinsics, lang_items, panic_implementation, core_panic_info,
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alloc_error_handler
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)
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)]
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#[cfg(not(feature = "std"))]
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extern crate alloc;
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extern crate polkadot_parachain as parachain;
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extern crate wee_alloc;
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extern crate tiny_keccak;
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extern crate pwasm_libc;
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use parachain::codec::{Decode, Encode, Input, Output};
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#[cfg(not(feature = "std"))]
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mod wasm;
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#[cfg(not(feature = "std"))]
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pub use wasm::*;
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// Define global allocator.
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#[cfg(not(feature = "std"))]
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#[global_allocator]
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static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
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// Head data for this parachain.
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#[derive(Default, Clone)]
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struct HeadData {
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// Block number
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number: u64,
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// parent block keccak256
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parent_hash: [u8; 32],
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// hash of post-execution state.
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post_state: [u8; 32],
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}
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impl Encode for HeadData {
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fn encode_to<T: Output>(&self, dest: &mut T) {
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dest.push(&self.number);
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dest.push(&self.parent_hash);
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dest.push(&self.post_state);
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}
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}
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impl Decode for HeadData {
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fn decode<I: Input>(input: &mut I) -> Option<Self> {
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Some(HeadData {
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number: Decode::decode(input)?,
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parent_hash: Decode::decode(input)?,
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post_state: Decode::decode(input)?,
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})
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}
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}
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// Block data for this parachain.
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#[derive(Default, Clone)]
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struct BlockData {
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// State to begin from.
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state: u64,
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// Amount to add (overflowing)
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add: u64,
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}
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impl Encode for BlockData {
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fn encode_to<T: Output>(&self, dest: &mut T) {
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dest.push(&self.state);
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dest.push(&self.add);
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}
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}
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impl Decode for BlockData {
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fn decode<I: Input>(input: &mut I) -> Option<Self> {
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Some(BlockData {
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state: Decode::decode(input)?,
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add: Decode::decode(input)?,
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})
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use parachain::ValidationParams;
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const TEST_CODE: &[u8] = include_bytes!("../wasm/test.wasm");
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fn hash_state(state: u64) -> [u8; 32] {
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::tiny_keccak::keccak256(state.encode().as_slice())
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}
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fn hash_head(head: &HeadData) -> [u8; 32] {
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::tiny_keccak::keccak256(head.encode().as_slice())
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}
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#[test]
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fn execute_good_on_parent() {
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let parent_head = HeadData {
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number: 0,
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parent_hash: [0; 32],
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post_state: hash_state(0),
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};
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let block_data = BlockData {
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state: 0,
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add: 512,
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};
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let ret = parachain::wasm::validate_candidate(TEST_CODE, ValidationParams {
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parent_head: parent_head.encode(),
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block_data: block_data.encode(),
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}).unwrap();
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let new_head = HeadData::decode(&mut &ret.head_data[..]).unwrap();
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assert_eq!(new_head.number, 1);
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assert_eq!(new_head.parent_hash, hash_head(&parent_head));
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assert_eq!(new_head.post_state, hash_state(512));
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}
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}
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@@ -1 +0,0 @@
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src
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@@ -1,61 +0,0 @@
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// Copyright 2017 Parity Technologies (UK) Ltd.
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// This file is part of Polkadot.
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// Polkadot is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Polkadot is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
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//! Defines WASM module logic.
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use core::{intrinsics, panic, alloc};
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use parachain::{self, ValidationResult};
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use parachain::codec::{Encode, Decode};
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use super::{HeadData, BlockData};
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#[panic_implementation]
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#[no_mangle]
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pub fn panic(_info: &panic::PanicInfo) -> ! {
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unsafe {
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intrinsics::abort()
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}
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}
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#[alloc_error_handler]
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#[no_mangle]
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pub fn oom(_: alloc::Layout) -> ! {
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unsafe {
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intrinsics::abort();
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}
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}
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#[no_mangle]
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pub extern fn validate(offset: usize, len: usize) -> usize {
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let hash_state = |state: u64| ::tiny_keccak::keccak256(state.encode().as_slice());
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let params = unsafe { ::parachain::load_params(offset, len) };
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let parent_head = HeadData::decode(&mut ¶ms.parent_head[..])
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.expect("invalid parent head format.");
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let block_data = BlockData::decode(&mut ¶ms.block_data[..])
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.expect("invalid block data format.");
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assert_eq!(hash_state(block_data.state), parent_head.post_state, "wrong post-state proof");
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let new_state = block_data.state.saturating_add(block_data.add);
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let new_head = HeadData {
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number: parent_head.number + 1,
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parent_hash: ::tiny_keccak::keccak256(¶ms.parent_head[..]),
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post_state: hash_state(new_state),
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};
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parachain::write_result(ValidationResult { head_data: new_head.encode() })
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}
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@@ -76,7 +76,7 @@ impl Decode for BlockData {
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}
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}
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const TEST_CODE: &[u8] = include_bytes!("res/basic_add.wasm");
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const TEST_CODE: &[u8] = include_bytes!("res/adder.wasm");
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fn hash_state(state: u64) -> [u8; 32] {
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::tiny_keccak::keccak256(state.encode().as_slice())
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