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mod+kvdb+channeldb: use btcwallet new DB interface

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Depends on btcsuite/btcwallet#757.
Pulls in the updated version of btcwallet and walletdb that have the DB
interface enhanced by their own View() and Update() methods with the
reset callback/closure supported out of the box. That way the global
package-level View() and Update() functions now become pure redirects.
This commit is contained in:
Oliver Gugger committed 2021-08-04 14:55:55 +02:00
1 parent 1e84b52fee
commit 482f76a0f4
13 files changed
+34 -114
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channeldb/db.go
-41
View File
@@ -10,7 +10,6 @@ import (
"github.com/btcsuite/btcd/btcec"
"github.com/btcsuite/btcd/wire"
"github.com/btcsuite/btcwallet/walletdb"
"github.com/go-errors/errors"
mig "github.com/lightningnetwork/lnd/channeldb/migration"
"github.com/lightningnetwork/lnd/channeldb/migration12"
@@ -214,46 +213,6 @@ type DB struct {
dryRun bool
}
// Update is a wrapper around walletdb.Update which calls into the extended
// backend when available. This call is needed to be able to cast DB to
// ExtendedBackend. The passed reset function is called before the start of the
// transaction and can be used to reset intermediate state. As callers may
// expect retries of the f closure (depending on the database backend used), the
// reset function will be called before each retry respectively.
func (db *DB) Update(f func(tx walletdb.ReadWriteTx) error, reset func()) error {
if v, ok := db.Backend.(kvdb.ExtendedBackend); ok {
return v.Update(f, reset)
}
reset()
return walletdb.Update(db, f)
}
// View is a wrapper around walletdb.View which calls into the extended
// backend when available. This call is needed to be able to cast DB to
// ExtendedBackend. The passed reset function is called before the start of the
// transaction and can be used to reset intermediate state. As callers may
// expect retries of the f closure (depending on the database backend used), the
// reset function will be called before each retry respectively.
func (db *DB) View(f func(tx walletdb.ReadTx) error, reset func()) error {
if v, ok := db.Backend.(kvdb.ExtendedBackend); ok {
return v.View(f, reset)
}
reset()
return walletdb.View(db, f)
}
// PrintStats calls into the extended backend if available. This call is needed
// to be able to cast DB to ExtendedBackend.
func (db *DB) PrintStats() string {
if v, ok := db.Backend.(kvdb.ExtendedBackend); ok {
return v.PrintStats()
}
return "unimplemented"
}
// Open opens or creates channeldb. Any necessary schemas migrations due
// to updates will take place as necessary.
// TODO(bhandras): deprecate this function.