100 lines
2 KiB
Go
100 lines
2 KiB
Go
package reputation
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import (
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"strconv"
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)
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// TrustValue represents the numeric value of the node's trust.
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type TrustValue float64
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const (
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// TrustOne is a trust value equal to one.
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TrustOne = TrustValue(1)
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// TrustZero is a trust value equal to zero.
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TrustZero = TrustValue(0)
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)
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// TrustValueFromFloat64 converts float64 to TrustValue.
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func TrustValueFromFloat64(v float64) TrustValue {
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return TrustValue(v)
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}
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// TrustValueFromInt converts int to TrustValue.
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func TrustValueFromInt(v int) TrustValue {
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return TrustValue(v)
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}
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func (v TrustValue) String() string {
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return strconv.FormatFloat(float64(v), 'f', -1, 64)
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}
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// Float64 converts TrustValue to float64.
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func (v TrustValue) Float64() float64 {
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return float64(v)
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}
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// Add adds v2 to v.
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func (v *TrustValue) Add(v2 TrustValue) {
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*v = *v + v2
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}
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// Div returns the result of dividing v by v2.
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func (v TrustValue) Div(v2 TrustValue) TrustValue {
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return v / v2
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}
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// Mul multiplies v by v2.
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func (v *TrustValue) Mul(v2 TrustValue) {
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*v *= v2
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}
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// IsZero returns true if v equal to zero.
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func (v TrustValue) IsZero() bool {
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return v == 0
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}
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// Trust represents peer's trust (reputation).
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type Trust struct {
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trusting, peer PeerID
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val TrustValue
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}
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// TrustHandler describes the signature of the reputation.Trust
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// value handling function.
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//
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// Termination of processing without failures is usually signaled
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// with a zero error, while a specific value may describe the reason
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// for failure.
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type TrustHandler func(Trust) error
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// Value returns peer's trust value.
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func (t Trust) Value() TrustValue {
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return t.val
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}
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// SetValue sets peer's trust value.
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func (t *Trust) SetValue(val TrustValue) {
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t.val = val
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}
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// Peer returns trusted peer ID.
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func (t Trust) Peer() PeerID {
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return t.peer
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}
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// SetPeer sets trusted peer ID.
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func (t *Trust) SetPeer(id PeerID) {
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t.peer = id
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}
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// TrustingPeer returns trusting peer ID.
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func (t Trust) TrustingPeer() PeerID {
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return t.trusting
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}
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// SetTrustingPeer sets trusting peer ID.
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func (t *Trust) SetTrustingPeer(id PeerID) {
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t.trusting = id
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}
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