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event_manager.go
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/
event_manager.go
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package lib
type TransactionEventFunc func(event *TransactionEvent)
type BlockEventFunc func(event *BlockEvent)
type SnapshotCompletedEventFunc func()
type TransactionEvent struct {
Txn *MsgDeSoTxn
TxnHash *BlockHash
// Optional
UtxoView *UtxoView
UtxoOps []*UtxoOperation
}
type BlockEvent struct {
Block *MsgDeSoBlock
// Optional
UtxoView *UtxoView
UtxoOps [][]*UtxoOperation
}
type EventManager struct {
transactionConnectedHandlers []TransactionEventFunc
blockConnectedHandlers []BlockEventFunc
blockDisconnectedHandlers []BlockEventFunc
blockAcceptedHandlers []BlockEventFunc
snapshotCompletedHandlers []SnapshotCompletedEventFunc
}
func NewEventManager() *EventManager {
return &EventManager{}
}
func (em *EventManager) OnTransactionConnected(handler TransactionEventFunc) {
em.transactionConnectedHandlers = append(em.transactionConnectedHandlers, handler)
}
func (em *EventManager) transactionConnected(event *TransactionEvent) {
for _, handler := range em.transactionConnectedHandlers {
handler(event)
}
}
func (em *EventManager) OnBlockConnected(handler BlockEventFunc) {
em.blockConnectedHandlers = append(em.blockConnectedHandlers, handler)
}
func (em *EventManager) blockConnected(event *BlockEvent) {
for _, handler := range em.blockConnectedHandlers {
handler(event)
}
}
func (em *EventManager) OnBlockDisconnected(handler BlockEventFunc) {
em.blockDisconnectedHandlers = append(em.blockDisconnectedHandlers, handler)
}
func (em *EventManager) blockDisconnected(event *BlockEvent) {
for _, handler := range em.blockDisconnectedHandlers {
handler(event)
}
}
func (em *EventManager) OnSnapshotCompleted(handler SnapshotCompletedEventFunc) {
em.snapshotCompletedHandlers = append(em.snapshotCompletedHandlers, handler)
}
func (em *EventManager) snapshotCompleted() {
for _, handler := range em.snapshotCompletedHandlers {
handler()
}
}
func (em *EventManager) OnBlockAccepted(handler BlockEventFunc) {
em.blockAcceptedHandlers = append(em.blockAcceptedHandlers, handler)
}
func (em *EventManager) blockAccepted(event *BlockEvent) {
for _, handler := range em.blockAcceptedHandlers {
handler(event)
}
}