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Introduce Pallet paged-list (#14120)
* Prototype StoragePagedList Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Add drain Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Remove stale docs Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Add fuzzer tests Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Update Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Review Co-authored-by: Koute <koute@users.noreply.github.com> Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * fmt Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Docs and clippy Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Sum docs Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Cleanup Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Undo WIP Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Add pallet-paged-list Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Move code to pallet Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Move fuzzer Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Cleanup Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * fmt Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * docs Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Rename Appendix -> Appender Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Rename clear -> delete Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Feature gate testing stuff Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Docs review Co-authored-by: Koute <koute@users.noreply.github.com> Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Cleanup Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * doc review Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Review renames Co-authored-by: Koute <koute@users.noreply.github.com> Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Add docs Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Fix fuzzer Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Docs + examples Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Remove hasher Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Remove empty Event and Call Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Remove MaxPages Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Fix docs Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Test eager page removal Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Cleanup Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Update frame/paged-list/src/paged_list.rs Co-authored-by: Koute <koute@users.noreply.github.com> * Fix docs Co-authored-by: Koute <koute@users.noreply.github.com> Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Remove as_*_vec Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Update versions Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Rename ValuesPerPage -> ValuesPerNewPage Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Update lockfile Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Fix mock Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> --------- Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> Co-authored-by: Koute <koute@users.noreply.github.com> Co-authored-by: parity-processbot <>
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Oliver Tale-Yazdi
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// This file is part of Substrate.
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// Copyright (C) Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! # Running
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//! Running this fuzzer can be done with `cargo hfuzz run pallet-paged-list`. `honggfuzz` CLI
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//! options can be used by setting `HFUZZ_RUN_ARGS`, such as `-n 4` to use 4 threads.
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//!
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//! # Debugging a panic
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//! Once a panic is found, it can be debugged with
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//! `cargo hfuzz run-debug pallet-paged-list hfuzz_workspace/pallet-paged-list/*.fuzz`.
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//!
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//! # More information
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//! More information about `honggfuzz` can be found
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//! [here](https://docs.rs/honggfuzz/).
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use arbitrary::Arbitrary;
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use honggfuzz::fuzz;
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use frame_support::{storage::StorageList, StorageNoopGuard};
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use pallet_paged_list::mock::{PagedList as List, *};
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use sp_io::TestExternalities;
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type Meta = MetaOf<Test, ()>;
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fn main() {
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loop {
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fuzz!(|data: (Vec<Op>, u8)| {
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drain_append_work(data.0, data.1);
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});
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}
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}
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/// Appends and drains random number of elements in random order and checks storage invariants.
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///
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/// It also changes the maximal number of elements per page dynamically, hence the `page_size`.
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fn drain_append_work(ops: Vec<Op>, page_size: u8) {
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if page_size == 0 {
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return
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}
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TestExternalities::default().execute_with(|| {
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ValuesPerNewPage::set(&page_size.into());
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let _g = StorageNoopGuard::default();
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let mut total: i64 = 0;
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for op in ops.into_iter() {
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total += op.exec();
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assert!(total >= 0);
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assert_eq!(List::iter().count(), total as usize);
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// We have the assumption that the queue removes the metadata when empty.
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if total == 0 {
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assert_eq!(List::drain().count(), 0);
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assert_eq!(Meta::from_storage().unwrap_or_default(), Default::default());
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}
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}
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assert_eq!(List::drain().count(), total as usize);
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// `StorageNoopGuard` checks that there is no storage leaked.
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});
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}
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enum Op {
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Append(Vec<u32>),
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Drain(u8),
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}
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impl Arbitrary<'_> for Op {
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fn arbitrary(u: &mut arbitrary::Unstructured<'_>) -> arbitrary::Result<Self> {
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if u.arbitrary::<bool>()? {
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Ok(Op::Append(Vec::<u32>::arbitrary(u)?))
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} else {
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Ok(Op::Drain(u.arbitrary::<u8>()?))
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}
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}
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}
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impl Op {
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pub fn exec(self) -> i64 {
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match self {
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Op::Append(v) => {
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let l = v.len();
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List::append_many(v);
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l as i64
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},
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Op::Drain(v) => -(List::drain().take(v as usize).count() as i64),
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}
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}
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}
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