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Scale and increase validator count (#6417)

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This commit is contained in:
Gavin Wood
2020-06-19 08:25:09 +02:00
committed by GitHub
parent dd7830d481
commit 46627bbb7d
1 changed files with 29 additions and 1 deletions
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substrate/frame/staking/src/lib.rs
+29 -1
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@@ -303,7 +303,7 @@ use frame_support::{
};
use pallet_session::historical;
use sp_runtime::{
Perbill, PerU16, PerThing, RuntimeDebug, DispatchError,
Percent, Perbill, PerU16, PerThing, RuntimeDebug, DispatchError,
curve::PiecewiseLinear,
traits::{
Convert, Zero, StaticLookup, CheckedSub, Saturating, SaturatedConversion, AtLeast32Bit,
@@ -1794,6 +1794,34 @@ decl_module! {
ValidatorCount::put(new);
}
/// Increments the ideal number of validators.
///
/// The dispatch origin must be Root.
///
/// # <weight>
/// Base Weight: 1.717 µs
/// Read/Write: Validator Count
/// # </weight>
#[weight = 2 * WEIGHT_PER_MICROS + T::DbWeight::get().reads_writes(1, 1)]
fn increase_validator_count(origin, #[compact] additional: u32) {
ensure_root(origin)?;
ValidatorCount::mutate(|n| *n += additional);
}
/// Scale up the ideal number of validators by a factor.
///
/// The dispatch origin must be Root.
///
/// # <weight>
/// Base Weight: 1.717 µs
/// Read/Write: Validator Count
/// # </weight>
#[weight = 2 * WEIGHT_PER_MICROS + T::DbWeight::get().reads_writes(1, 1)]
fn scale_validator_count(origin, factor: Percent) {
ensure_root(origin)?;
ValidatorCount::mutate(|n| *n += factor * *n);
}
/// Force there to be no new eras indefinitely.
///
/// The dispatch origin must be Root.