Newer
Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
// Copyright 2019 Parity Technologies (UK) Ltd.
// This file is part of Substrate.
// Substrate is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Substrate is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
//! A set of constant values used in substrate runtime.
/// Money matters.
pub mod currency {
use node_primitives::Balance;
pub const MILLICENTS: Balance = 1_000_000_000;
pub const CENTS: Balance = 1_000 * MILLICENTS; // assume this is worth about a cent.
pub const DOLLARS: Balance = 100 * CENTS;
}
/// Time.
pub mod time {
use node_primitives::Moment;
pub const SECS_PER_BLOCK: Moment = 6;
pub const MINUTES: Moment = 60 / SECS_PER_BLOCK;
pub const HOURS: Moment = MINUTES * 60;
pub const DAYS: Moment = HOURS * 24;
}
// CRITICAL NOTE: The system module maintains two constants: a _maximum_ block weight and a
// _ratio_ of it yielding the portion which is accessible to normal transactions (reserving the rest
// for operational ones). `TARGET_BLOCK_FULLNESS` is entirely independent and the system module is
// not aware of if, nor should it care about it. This constant simply denotes on which ratio of the
// _maximum_ block weight we tweak the fees. It does NOT care about the type of the dispatch.
//
// For the system to be configured in a sane way, `TARGET_BLOCK_FULLNESS` should always be less than
// the ratio that `system` module uses to find normal transaction quota.
/// Fee-related.
pub mod fee {
pub use runtime_primitives::Perbill;
/// The block saturation level. Fees will be updates based on this value.
pub const TARGET_BLOCK_FULLNESS: Perbill = Perbill::from_percent(25);
}