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sc_network_statement/
config.rs

1// This file is part of Substrate.
2
3// Copyright (C) Parity Technologies (UK) Ltd.
4// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
5
6// This program is free software: you can redistribute it and/or modify
7// it under the terms of the GNU General Public License as published by
8// the Free Software Foundation, either version 3 of the License, or
9// (at your option) any later version.
10
11// This program is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License
17// along with this program. If not, see <https://www.gnu.org/licenses/>.
18
19//! Configuration of the statement protocol
20
21use std::time;
22
23/// Interval at which we propagate statements;
24pub(crate) const PROPAGATE_TIMEOUT: time::Duration = time::Duration::from_millis(1000);
25
26/// Maximum number of known statement hashes to keep for a peer.
27pub const MAX_KNOWN_STATEMENTS: usize = 4 * 1024 * 1024; // * 32 bytes for hash = 128 MB per peer
28
29/// Maximum allowed size for a statement notification.
30pub const MAX_STATEMENT_NOTIFICATION_SIZE: u64 = 1024 * 1024;
31
32/// Maximum number of statement validation request we keep at any moment.
33pub const MAX_PENDING_STATEMENTS: usize = 2 * 1024 * 1024;
34
35/// Default maximum statements per second before rate limiting kicks in.
36pub const DEFAULT_STATEMENTS_PER_SECOND: u32 = 50_000;
37
38/// Burst capacity coefficient for the rate limiter.
39pub const STATEMENTS_BURST_COEFFICIENT: u32 = 5;