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unary_snowball.go
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/
unary_snowball.go
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// Copyright (C) 2019-2022, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package snowball
import (
"fmt"
)
var _ UnarySnowball = (*unarySnowball)(nil)
// unarySnowball is the implementation of a unary snowball instance
type unarySnowball struct {
// wrap the unary snowflake logic
unarySnowflake
// numSuccessfulPolls tracks the total number of successful network polls
numSuccessfulPolls int
}
func (sb *unarySnowball) RecordSuccessfulPoll() {
sb.numSuccessfulPolls++
sb.unarySnowflake.RecordSuccessfulPoll()
}
func (sb *unarySnowball) Extend(beta int, choice int) BinarySnowball {
bs := &binarySnowball{
binarySnowflake: binarySnowflake{
binarySlush: binarySlush{preference: choice},
confidence: sb.confidence,
beta: beta,
finalized: sb.Finalized(),
},
preference: choice,
}
bs.numSuccessfulPolls[choice] = sb.numSuccessfulPolls
return bs
}
func (sb *unarySnowball) Clone() UnarySnowball {
newSnowball := *sb
return &newSnowball
}
func (sb *unarySnowball) String() string {
return fmt.Sprintf("SB(NumSuccessfulPolls = %d, %s)",
sb.numSuccessfulPolls,
&sb.unarySnowflake)
}