Skip to main content

SystemParametersV1

SystemParametersV1​

class SystemParametersV1

A typed view of the 0x3::iota_system_state_inner::SystemParametersV1 embedded in the system state.

debugDescription​

var debugDescription: String { get }

A textual representation of this instance, suitable for debugging.

Calling this property directly is discouraged. Instead, convert an instance of any type to a string by using the String(reflecting:) initializer. This initializer works with any type, and uses the custom debugDescription property for types that conform to CustomDebugStringConvertible:

struct Point: CustomDebugStringConvertible {
    let x: Int, y: Int

    var debugDescription: String {
        return "(\(x), \(y))"
    }
}

let p = Point(x: 21, y: 30)
let s = String(reflecting: p)
print(s)
// Prints "(21, 30)"

The conversion of p to a string in the assignment to s uses the Point type's debugDescription property.

epochDurationMs()​

func epochDurationMs() -> UInt64

The duration of an epoch, in milliseconds.

maxValidatorCount()​

func maxValidatorCount() -> UInt64

Maximum number of active validators at any moment.

minValidatorCount()​

func minValidatorCount() -> UInt64

Minimum number of active validators at any moment.

minValidatorJoiningStake()​

func minValidatorJoiningStake() -> UInt64

Lower bound on the amount of stake required to become a validator, in nanos.

validatorLowStakeGracePeriod()​

func validatorLowStakeGracePeriod() -> UInt64

A validator can have stake below validator_low_stake_threshold for this many epochs before being removed.

validatorLowStakeThreshold()​

func validatorLowStakeThreshold() -> UInt64

Validators with stake below this threshold (in nanos) are considered to have low stake and may be removed from the validator set.

validatorVeryLowStakeThreshold()​

func validatorVeryLowStakeThreshold() -> UInt64

Validators with stake below this threshold (in nanos) are removed immediately at epoch change with no grace period.