代@CodeCmn提交只读跨链的实现,和3.10版本实现的方式一致 #289
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| // NewCrossQueryCacheWithData return CrossQuery instance while posttx | ||
| func NewCrossQueryCacheWithData(crossQueries []*pb.CrossQueryInfo) *CrossQueryCache { |
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感谢您的贡献😄 在只读跨链时的post tx阶段，只需要通过缓存验证，而无需再次发起网络请求，好像没有看到对应代码实现
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func (cqc *CrossQueryCache) CrossQuery(
crossQueryRequest *pb.CrossQueryRequest,
queryMeta *pb.CrossQueryMeta) (*pb.ContractResponse, error) {
fmt.Println("Receive CrossQuery", "crossQueryRequest", crossQueryRequest, "queryMeta", queryMeta)
if !isQueryMetaValid(queryMeta) {
return nil, fmt.Errorf("isQueryParamValid check failed")
}
// Call endorsor for responce
if cqc.isPenetrate {
queryInfo, err := crossQueryFromEndorsor(crossQueryRequest, queryMeta)
if err != nil {
return nil, err
}
fmt.Println("crossQueryFromEndorsor", "无缓存？", cqc.isPenetrate)
cqc.crossQueryCaches = append(cqc.crossQueryCaches, queryInfo)
return queryInfo.GetResponse().GetResponse(), nil
}
fmt.Println("crossQueryFromEndorsor", "有缓存？", cqc.isPenetrate)
// 验证背书规则、参数有效性、时间戳有效性
if cqc.crossQueryIdx > len(cqc.crossQueryCaches)-1 {
return nil, fmt.Errorf("len of crossQueryCaches not match the contract")
}
crossQuery := cqc.crossQueryCaches[cqc.crossQueryIdx]
// 验证request、签名等信息
if !isCossQueryValid(crossQueryRequest, queryMeta, crossQuery) {
return nil, fmt.Errorf("isCossQueryValid check failed")
}
cqc.crossQueryIdx++
return crossQuery.GetResponse().GetResponse(), nil
}
是否要达到的效果如上面代码中的fmt所示，如果有缓存就不再 crossQueryFromEndorsor()发起网络请求，没有缓存则发起网络请求。
我本地刚才修改了下测试，执行跨链调用命令
./bin/xchain-cli wasm invoke cross_query_demo --method cross_query -H 127.0.0.1:37101 --fee 1000
加上 --fee, 会走缓存，如果不加 --fee, 则会发送网络请求。这样是否正常？
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我按照v3.10的代码改了下，加上fee就会走缓存，不加就不行。。 我再看看
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v3.11 跟踪调用 NewCrossQueryCacheWithData() 该方法
只有
func (uv *UtxoVM) ImmediateVerifyTx(tx *pb.Transaction, isRootTx bool) (bool, error) {}
⬇
func (uv *UtxoVM) verifyTxRWSets(tx *pb.Transaction) (bool, error) {}
⬇
func (s *XModel) PrepareEnv(tx *pb.Transaction) (*Env, error) {}
⬇
func NewXModelCacheWithInputs(vdatas []*xmodel_pb.VersionedData, utxoInputs []*pb.TxInput, crossQueries []*pb.CrossQueryInfo) *XMCache {}
调用到。
预执行代码中，好像也没看到调用最上层 ImmediateVerifyTx()这个方法
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预执行调用的 NewCrossQueryCache() <= NewXModelCache()<= PreExec()
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现在的XuperCore的master分支上有 PreExec() => NewStateSandbox() => NewXModelCache() => NewCrossQueryCache()。是对应上边的么，我看内容一样。但是没找到调用 NewCrossQueryCacheWithData()这个方法。
😅
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是的。 因为NewXModelCacheWithInputs被移除了，统一通过NewXModelCache(cfg *contract.SandboxConfig)来区分预执行和验证阶段。
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可以问下 `只读跨链时的post tx阶段，只需要通过缓存验证，而无需再次发起网络请求` 这部分代码在v3.10或者三点多的版本 哪里有实现么，参考一下。
…------------------ 原始邮件 ------------------
发件人: "xuperchain/xupercore" ***@***.***>;
发送时间: 2021年11月15日(星期一) 晚上8:57
***@***.***>;
***@***.******@***.***>;
主题: Re: [xuperchain/xupercore] ***@***.***提交只读跨链的实现,和3.10版本实现的方式一致 (PR #289)
@preminem commented on this pull request.
In kernel/contract/sandbox/cross_query_cache.go:
> +} + +type queryRes struct { + queryRes *pb.CrossQueryResponse + signs *pb.SignatureInfo +} + +// NewCrossQueryCache return CrossQuery instance while preexec +func NewCrossQueryCache() *CrossQueryCache { + return &CrossQueryCache{ + isPenetrate: true, + } +} + +// NewCrossQueryCacheWithData return CrossQuery instance while posttx +func NewCrossQueryCacheWithData(crossQueries []*pb.CrossQueryInfo) *CrossQueryCache {
感谢您的贡献😄 在只读跨链时的post tx阶段，只需要通过缓存验证，而无需再次发起网络请求，好像没有看到对应代码实现
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可以参考3.11 分支， |
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| // MarshalMessages marshal protobuf message slice | ||
| func MarshalMessages(msgs interface{}) ([]byte, error) { |
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在bcs/ledger/xledger/state/xmodel/message.go 已经实现了
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Description
What is the purpose of the change?
代@CodeCmn提交只读跨链的实现,和3.10版本实现的方式一致
Fixes # (issue)
Type of change
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Brief of your solution
代@CodeCmn提交只读跨链的实现,和3.10版本实现的方式一致
How Has This Been Tested?
代@CodeCmn提交只读跨链的实现,和3.10版本实现的方式一致