当前位置: 首页>>代码示例>>Golang>>正文


Golang proto.InternalHeartbeatTxnResponse类代码示例

本文整理汇总了Golang中github.com/cockroachdb/cockroach/proto.InternalHeartbeatTxnResponse的典型用法代码示例。如果您正苦于以下问题:Golang InternalHeartbeatTxnResponse类的具体用法?Golang InternalHeartbeatTxnResponse怎么用?Golang InternalHeartbeatTxnResponse使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。


在下文中一共展示了InternalHeartbeatTxnResponse类的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: InternalHeartbeatTxn

// InternalHeartbeatTxn updates the transaction status and heartbeat
// timestamp after receiving transaction heartbeat messages from
// coordinator. Returns the updated transaction.
func (r *Range) InternalHeartbeatTxn(batch engine.Engine, ms *engine.MVCCStats,
	args *proto.InternalHeartbeatTxnRequest, reply *proto.InternalHeartbeatTxnResponse) {
	key := keys.TransactionKey(args.Txn.Key, args.Txn.ID)

	var txn proto.Transaction
	ok, err := engine.MVCCGetProto(batch, key, proto.ZeroTimestamp, true, nil, &txn)
	if err != nil {
		reply.SetGoError(err)
		return
	}
	// If no existing transaction record was found, initialize
	// to the transaction in the request header.
	if !ok {
		gogoproto.Merge(&txn, args.Txn)
	}
	if txn.Status == proto.PENDING {
		if txn.LastHeartbeat == nil {
			txn.LastHeartbeat = &proto.Timestamp{}
		}
		if txn.LastHeartbeat.Less(args.Header().Timestamp) {
			*txn.LastHeartbeat = args.Header().Timestamp
		}
		if err := engine.MVCCPutProto(batch, ms, key, proto.ZeroTimestamp, nil, &txn); err != nil {
			reply.SetGoError(err)
			return
		}
	}
	reply.Txn = &txn
}
开发者ID:simonzhangsm,项目名称:cockroach,代码行数:32,代码来源:range_command.go

示例2: InternalHeartbeatTxn

// InternalHeartbeatTxn updates the transaction status and heartbeat
// timestamp after receiving transaction heartbeat messages from
// coordinator. Returns the udpated transaction.
func (r *Range) InternalHeartbeatTxn(args *proto.InternalHeartbeatTxnRequest, reply *proto.InternalHeartbeatTxnResponse) {
	// Create the actual key to the system-local transaction table.
	key := engine.MakeKey(engine.KeyLocalTransactionPrefix, args.Key)
	var txn proto.Transaction
	ok, err := engine.GetProto(r.engine, key, &txn)
	if err != nil {
		reply.SetGoError(err)
		return
	}
	// If no existing transaction record was found, initialize
	// to the transaction in the request header.
	if !ok {
		gogoproto.Merge(&txn, args.Txn)
	}
	if txn.Status == proto.PENDING {
		if txn.LastHeartbeat == nil {
			txn.LastHeartbeat = &proto.Timestamp{}
		}
		if txn.LastHeartbeat.Less(args.Header().Timestamp) {
			*txn.LastHeartbeat = args.Header().Timestamp
		}
		if err := engine.PutProto(r.engine, key, &txn); err != nil {
			reply.SetGoError(err)
			return
		}
	}
	reply.Txn = &txn
}
开发者ID:embark,项目名称:cockroach,代码行数:31,代码来源:range.go

示例3: InternalHeartbeatTxn

// InternalHeartbeatTxn updates the transaction status and heartbeat
// timestamp after receiving transaction heartbeat messages from
// coordinator. Returns the updated transaction.
func (r *Range) InternalHeartbeatTxn(batch engine.Engine, ms *engine.MVCCStats, args proto.InternalHeartbeatTxnRequest) (proto.InternalHeartbeatTxnResponse, error) {
	var reply proto.InternalHeartbeatTxnResponse

	key := keys.TransactionKey(args.Txn.Key, args.Txn.ID)

	var txn proto.Transaction
	if ok, err := engine.MVCCGetProto(batch, key, proto.ZeroTimestamp, true, nil, &txn); err != nil {
		return reply, err
	} else if !ok {
		// If no existing transaction record was found, initialize to a
		// shallow copy of the transaction in the request header. We copy
		// to avoid mutating the original below.
		txn = *args.Txn
	}

	if txn.Status == proto.PENDING {
		if txn.LastHeartbeat == nil {
			txn.LastHeartbeat = &proto.Timestamp{}
		}
		if txn.LastHeartbeat.Less(args.Header().Timestamp) {
			*txn.LastHeartbeat = args.Header().Timestamp
		}
		if err := engine.MVCCPutProto(batch, ms, key, proto.ZeroTimestamp, nil, &txn); err != nil {
			return reply, err
		}
	}

	reply.Txn = &txn
	return reply, nil
}
开发者ID:routhcr,项目名称:cockroach,代码行数:33,代码来源:range_command.go

示例4: InternalHeartbeatTxn

// InternalHeartbeatTxn updates the transaction status and heartbeat
// timestamp after receiving transaction heartbeat messages from
// coordinator. The range will return the current status for this
// transaction to the coordinator.
func (r *Range) InternalHeartbeatTxn(args *proto.InternalHeartbeatTxnRequest, reply *proto.InternalHeartbeatTxnResponse) {
	// Create the actual key to the system-local transaction table.
	key := engine.MakeKey(engine.KeyLocalTransactionPrefix, args.Key)
	var txn proto.Transaction
	if _, err := engine.GetProto(r.engine, key, &txn); err != nil {
		reply.SetGoError(err)
		return
	}
	if txn.Status == proto.PENDING {
		if !args.Header().Timestamp.Less(txn.LastHeartbeat) {
			txn.LastHeartbeat = args.Header().Timestamp
		}
		if err := engine.PutProto(r.engine, key, &txn); err != nil {
			reply.SetGoError(err)
			return
		}
	}
	reply.Status = txn.Status
}
开发者ID:kuguobing,项目名称:cockroach,代码行数:23,代码来源:range.go


注:本文中的github.com/cockroachdb/cockroach/proto.InternalHeartbeatTxnResponse类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。