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Golang BlockChain.CurrentBlock方法代码示例

本文整理汇总了Golang中github.com/gophergala2016/etherapis/etherapis/Godeps/_workspace/src/github.com/ethereum/go-ethereum/core.BlockChain.CurrentBlock方法的典型用法代码示例。如果您正苦于以下问题:Golang BlockChain.CurrentBlock方法的具体用法?Golang BlockChain.CurrentBlock怎么用?Golang BlockChain.CurrentBlock使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/gophergala2016/etherapis/etherapis/Godeps/_workspace/src/github.com/ethereum/go-ethereum/core.BlockChain的用法示例。


在下文中一共展示了BlockChain.CurrentBlock方法的3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: blockByNumber

// blockByNumber is a commonly used helper function which retrieves and returns the block for the given block number. It
// returns nil when no block could be found.
func blockByNumber(m *miner.Miner, bc *core.BlockChain, blockNr rpc.BlockNumber) *types.Block {
	if blockNr == rpc.PendingBlockNumber {
		return m.PendingBlock()
	}
	if blockNr == rpc.LatestBlockNumber {
		return bc.CurrentBlock()
	}

	return bc.GetBlockByNumber(uint64(blockNr))
}
开发者ID:efaysal,项目名称:etherapis,代码行数:12,代码来源:api.go

示例2: processPastBlocks

func (self *GasPriceOracle) processPastBlocks(chain *core.BlockChain) {
	last := int64(-1)
	cblock := chain.CurrentBlock()
	if cblock != nil {
		last = int64(cblock.NumberU64())
	}
	first := int64(0)
	if last > gpoProcessPastBlocks {
		first = last - gpoProcessPastBlocks
	}
	self.firstProcessed = uint64(first)
	for i := first; i <= last; i++ {
		block := chain.GetBlockByNumber(uint64(i))
		if block != nil {
			self.processBlock(block)
		}
	}

}
开发者ID:efaysal,项目名称:etherapis,代码行数:19,代码来源:gasprice.go

示例3: NewProtocolManager

// NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable
// with the ethereum network.
func NewProtocolManager(fastSync bool, networkId int, mux *event.TypeMux, txpool txPool, pow pow.PoW, blockchain *core.BlockChain, chaindb ethdb.Database) (*ProtocolManager, error) {
	// Figure out whether to allow fast sync or not
	if fastSync && blockchain.CurrentBlock().NumberU64() > 0 {
		glog.V(logger.Info).Infof("blockchain not empty, fast sync disabled")
		fastSync = false
	}
	// Create the protocol manager with the base fields
	manager := &ProtocolManager{
		networkId:  networkId,
		fastSync:   fastSync,
		eventMux:   mux,
		txpool:     txpool,
		blockchain: blockchain,
		chaindb:    chaindb,
		peers:      newPeerSet(),
		newPeerCh:  make(chan *peer, 1),
		txsyncCh:   make(chan *txsync),
		quitSync:   make(chan struct{}),
	}
	// Initiate a sub-protocol for every implemented version we can handle
	manager.SubProtocols = make([]p2p.Protocol, 0, len(ProtocolVersions))
	for i, version := range ProtocolVersions {
		// Skip protocol version if incompatible with the mode of operation
		if fastSync && version < eth63 {
			continue
		}
		// Compatible; initialise the sub-protocol
		version := version // Closure for the run
		manager.SubProtocols = append(manager.SubProtocols, p2p.Protocol{
			Name:    ProtocolName,
			Version: version,
			Length:  ProtocolLengths[i],
			Run: func(p *p2p.Peer, rw p2p.MsgReadWriter) error {
				peer := manager.newPeer(int(version), p, rw)
				manager.newPeerCh <- peer
				return manager.handle(peer)
			},
			NodeInfo: func() interface{} {
				return manager.NodeInfo()
			},
			PeerInfo: func(id discover.NodeID) interface{} {
				if p := manager.peers.Peer(fmt.Sprintf("%x", id[:8])); p != nil {
					return p.Info()
				}
				return nil
			},
		})
	}
	if len(manager.SubProtocols) == 0 {
		return nil, errIncompatibleConfig
	}
	// Construct the different synchronisation mechanisms
	manager.downloader = downloader.New(chaindb, manager.eventMux, blockchain.HasHeader, blockchain.HasBlockAndState, blockchain.GetHeader,
		blockchain.GetBlock, blockchain.CurrentHeader, blockchain.CurrentBlock, blockchain.CurrentFastBlock, blockchain.FastSyncCommitHead,
		blockchain.GetTd, blockchain.InsertHeaderChain, blockchain.InsertChain, blockchain.InsertReceiptChain, blockchain.Rollback,
		manager.removePeer)

	validator := func(block *types.Block, parent *types.Block) error {
		return core.ValidateHeader(pow, block.Header(), parent.Header(), true, false)
	}
	heighter := func() uint64 {
		return blockchain.CurrentBlock().NumberU64()
	}
	manager.fetcher = fetcher.New(blockchain.GetBlock, validator, manager.BroadcastBlock, heighter, blockchain.InsertChain, manager.removePeer)

	return manager, nil
}
开发者ID:efaysal,项目名称:etherapis,代码行数:69,代码来源:handler.go


注:本文中的github.com/gophergala2016/etherapis/etherapis/Godeps/_workspace/src/github.com/ethereum/go-ethereum/core.BlockChain.CurrentBlock方法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。