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core: use dao-binded cache for native contracts

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All native cached values are binded to DAO, so that it's possible
to properly handle historic calls.
This commit is contained in:
Anna Shaleva 2022-04-12 17:29:11 +03:00
parent 812fa3f76a
commit aa886f67ce
16 changed files with 475 additions and 282 deletions
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39
pkg/core/native/oracle.go
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@ -40,15 +40,17 @@ type Oracle struct {
Desig *Designate
oracleScript []byte
requestPrice atomic.Value
requestPriceChanged atomic.Value
// Module is an oracle module capable of talking with the external world.
Module atomic.Value
// newRequests contains new requests created during current block.
newRequests map[uint64]*state.OracleRequest
}
type OracleCache struct {
requestPrice atomic.Value
requestPriceChanged atomic.Value
}
const (
oracleContractID = -9
maxURLLength = 256
@ -121,8 +123,6 @@ func newOracle() *Oracle {
md = newMethodAndPrice(o.setPrice, 1<<15, callflag.States)
o.AddMethod(md, desc)
o.requestPriceChanged.Store(true)
return o
}
@ -143,9 +143,10 @@ func (o *Oracle) OnPersist(ic *interop.Context) error {
// PostPersist represents `postPersist` method.
func (o *Oracle) PostPersist(ic *interop.Context) error {
p := o.getPriceInternal(ic.DAO)
if o.requestPriceChanged.Load().(bool) {
o.requestPrice.Store(p)
o.requestPriceChanged.Store(false)
cache := ic.DAO.Store.GetCache(o.ID).(*OracleCache)
if cache.requestPriceChanged.Load().(bool) {
cache.requestPrice.Store(p)
cache.requestPriceChanged.Store(false)
}
var nodes keys.PublicKeys
@ -220,11 +221,21 @@ func (o *Oracle) Metadata() *interop.ContractMD {
func (o *Oracle) Initialize(ic *interop.Context) error {
setIntWithKey(o.ID, ic.DAO, prefixRequestID, 0)
setIntWithKey(o.ID, ic.DAO, prefixRequestPrice, DefaultOracleRequestPrice)
o.requestPrice.Store(int64(DefaultOracleRequestPrice))
o.requestPriceChanged.Store(false)
cache := &OracleCache{}
cache.requestPrice.Store(int64(DefaultOracleRequestPrice))
cache.requestPriceChanged.Store(false)
ic.DAO.Store.SetCache(o.ID, cache)
return nil
}
func (o *Oracle) InitializeCache(d *dao.Simple) {
cache := &OracleCache{}
cache.requestPrice.Store(getIntWithKey(o.ID, d, prefixRequestPrice))
cache.requestPriceChanged.Store(false)
d.Store.SetCache(o.ID, cache)
}
func getResponse(tx *transaction.Transaction) *transaction.OracleResponse {
for i := range tx.Attributes {
if tx.Attributes[i].Type == transaction.OracleResponseT {
@ -439,8 +450,9 @@ func (o *Oracle) getPrice(ic *interop.Context, _ []stackitem.Item) stackitem.Ite
}
func (o *Oracle) getPriceInternal(d *dao.Simple) int64 {
if !o.requestPriceChanged.Load().(bool) {
return o.requestPrice.Load().(int64)
cache := d.Store.GetCache(o.ID).(*OracleCache)
if !cache.requestPriceChanged.Load().(bool) {
return cache.requestPrice.Load().(int64)
}
return getIntWithKey(o.ID, d, prefixRequestPrice)
}
@ -454,7 +466,8 @@ func (o *Oracle) setPrice(ic *interop.Context, args []stackitem.Item) stackitem.
panic("invalid committee signature")
}
setIntWithKey(o.ID, ic.DAO, prefixRequestPrice, price.Int64())
o.requestPriceChanged.Store(true)
cache := ic.DAO.Store.GetCache(o.ID).(*OracleCache)
cache.requestPriceChanged.Store(true)
return stackitem.Null{}
}