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native: cache oracle script hash

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This commit is contained in:
Evgenii Stratonikov 2020-09-24 15:50:52 +03:00
parent bd1790bddf
commit f084acc339
1 changed files with 13 additions and 0 deletions
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13
pkg/core/native/oracle.go
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@ -36,6 +36,8 @@ type Oracle struct {
nodesChanged atomic.Value
// nodes contains cached list of oracle nodes.
nodes atomic.Value
// oracleHash contains cached oracle script hash.
oracleHash atomic.Value
}
const (
@ -338,6 +340,15 @@ func (o *Oracle) GetOracleNodes() keys.PublicKeys {
return o.nodes.Load().(keys.PublicKeys).Copy()
}
// GetScriptHash returns script hash or oracle nodes.
func (o *Oracle) GetScriptHash() (util.Uint160, error) {
h := o.oracleHash.Load()
if h == nil {
return util.Uint160{}, storage.ErrKeyNotFound
}
return h.(util.Uint160), nil
}
func (o *Oracle) setOracleNodes(ic *interop.Context, _ []stackitem.Item) stackitem.Item {
var pubs keys.PublicKeys
err := o.SetOracleNodes(ic, pubs)
@ -422,6 +433,8 @@ func (o *Oracle) OnPersistEnd(d dao.DAO) {
ns := new(NodeList)
_ = o.getSerializableFromDAO(d, prefixNodeList, ns)
o.nodes.Store(keys.PublicKeys(*ns))
script, _ := smartcontract.CreateMajorityMultiSigRedeemScript(keys.PublicKeys(*ns).Copy())
o.oracleHash.Store(hash.Hash160(script))
o.nodesChanged.Store(false)
return
}