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beacon: add witness cache interface

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Joost Jager 2022-04-13 11:16:34 +02:00
parent 7265a5e42b
commit c392e003aa
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1 changed files with 13 additions and 3 deletions
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16
witness_beacon.go
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@ -3,7 +3,6 @@ package lnd
import (
"sync"
"github.com/lightningnetwork/lnd/channeldb"
"github.com/lightningnetwork/lnd/contractcourt"
"github.com/lightningnetwork/lnd/lntypes"
)
@ -16,19 +15,30 @@ type preimageSubscriber struct {
quit chan struct{}
}
type witnessCache interface {
// LookupSha256Witness attempts to lookup the preimage for a sha256
// hash. If the witness isn't found, ErrNoWitnesses will be returned.
LookupSha256Witness(hash lntypes.Hash) (lntypes.Preimage, error)
// AddSha256Witnesses adds a batch of new sha256 preimages into the
// witness cache. This is an alias for AddWitnesses that uses
// Sha256HashWitness as the preimages' witness type.
AddSha256Witnesses(preimages ...lntypes.Preimage) error
}
// preimageBeacon is an implementation of the contractcourt.WitnessBeacon
// interface, and the lnwallet.PreimageCache interface. This implementation is
// concerned with a single witness type: sha256 hahsh preimages.
type preimageBeacon struct {
sync.RWMutex
wCache *channeldb.WitnessCache
wCache witnessCache
clientCounter uint64
subscribers map[uint64]*preimageSubscriber
}
func newPreimageBeacon(wCache *channeldb.WitnessCache) *preimageBeacon {
func newPreimageBeacon(wCache witnessCache) *preimageBeacon {
return &preimageBeacon{
wCache: wCache,
subscribers: make(map[uint64]*preimageSubscriber),