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validators.go
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validators.go
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// Copyright (C) 2023 Gobalsky Labs Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package services
import (
"context"
"sync"
"code.vegaprotocol.io/vega/core/events"
"code.vegaprotocol.io/vega/core/subscribers"
eventspb "code.vegaprotocol.io/vega/protos/vega/events/v1"
)
type validatorUpdateE interface {
events.Event
ValidatorUpdate() eventspb.ValidatorUpdate
}
type ethereumKeyRotationE interface {
events.Event
EthereumKeyRotation() eventspb.EthereumKeyRotation
}
type keyRotationE interface {
events.Event
KeyRotation() eventspb.KeyRotation
}
type Validators struct {
*subscribers.Base
ctx context.Context
mu sync.RWMutex
validators map[string]eventspb.ValidatorUpdate
ch chan events.Event
}
func NewValidators(ctx context.Context) (assets *Validators) {
defer func() { go assets.consume() }()
return &Validators{
Base: subscribers.NewBase(ctx, 1000, true),
ctx: ctx,
validators: map[string]eventspb.ValidatorUpdate{},
ch: make(chan events.Event, 100),
}
}
func (a *Validators) consume() {
defer func() { close(a.ch) }()
for {
select {
case <-a.Closed():
return
case e, ok := <-a.ch:
if !ok {
// cleanup base
a.Halt()
// channel is closed
return
}
a.mu.Lock()
switch te := e.(type) {
case keyRotationE:
kr := te.KeyRotation()
vu, ok := a.validators[kr.NodeId]
if !ok {
break
}
vu.VegaPubKey = kr.NewPubKey
a.validators[kr.NodeId] = vu
case ethereumKeyRotationE:
kr := te.EthereumKeyRotation()
vu, ok := a.validators[kr.NodeId]
if !ok {
break
}
vu.EthereumAddress = kr.NewAddress
a.validators[kr.NodeId] = vu
case validatorUpdateE:
a.validators[te.ValidatorUpdate().NodeId] = te.ValidatorUpdate()
}
a.mu.Unlock()
}
}
}
func (a *Validators) Push(evts ...events.Event) {
for _, e := range evts {
switch te := e.(type) {
case keyRotationE,
ethereumKeyRotationE,
validatorUpdateE:
a.ch <- te
}
}
}
func (a *Validators) List() []*eventspb.ValidatorUpdate {
a.mu.RLock()
defer a.mu.RUnlock()
out := make([]*eventspb.ValidatorUpdate, 0, len(a.validators))
for _, v := range a.validators {
v := v
out = append(out, &v)
}
return out
}
func (a *Validators) Types() []events.Type {
return []events.Type{
events.ValidatorUpdateEvent,
events.EthereumKeyRotationEvent,
events.KeyRotationEvent,
}
}