polkadot_node_core_pvf/priority.rs
1// Copyright (C) Parity Technologies (UK) Ltd.
2// This file is part of Polkadot.
3
4// Polkadot is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8
9// Polkadot is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License
15// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
16
17use polkadot_node_subsystem::messages::PvfExecKind;
18
19/// A priority assigned to preparation of a PVF.
20#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)]
21pub enum Priority {
22 /// Normal priority for things that do not require immediate response, but still need to be
23 /// done pretty quick.
24 ///
25 /// Backing falls into this category.
26 Normal,
27 /// This priority is used for requests that are required to be processed as soon as possible.
28 ///
29 /// Disputes and approvals are on a critical path and require execution as soon as
30 /// possible to not delay finality.
31 Critical,
32}
33
34impl Priority {
35 /// Returns `true` if `self` is `Critical`
36 pub fn is_critical(self) -> bool {
37 self == Priority::Critical
38 }
39}
40
41impl From<PvfExecKind> for Priority {
42 fn from(priority: PvfExecKind) -> Self {
43 match priority {
44 PvfExecKind::Dispute => Priority::Critical,
45 PvfExecKind::Approval => Priority::Critical,
46 PvfExecKind::BackingSystemParas(_) => Priority::Normal,
47 PvfExecKind::Backing(_) => Priority::Normal,
48 }
49 }
50}