當前位置: 首頁>>代碼示例>>Golang>>正文


Golang RPCClient.Rescan方法代碼示例

本文整理匯總了Golang中github.com/decred/dcrwallet/chain.RPCClient.Rescan方法的典型用法代碼示例。如果您正苦於以下問題:Golang RPCClient.Rescan方法的具體用法?Golang RPCClient.Rescan怎麽用?Golang RPCClient.Rescan使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在github.com/decred/dcrwallet/chain.RPCClient的用法示例。


在下文中一共展示了RPCClient.Rescan方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: rescan

// rescan synchronously scans over all blocks on the main chain starting at
// startHash and height up through the recorded main chain tip block.  The
// progress channel, if non-nil, is sent non-error progress notifications with
// the heights the rescan has completed through, starting with the start height.
func (w *Wallet) rescan(chainClient *chain.RPCClient, startHash *chainhash.Hash, height int32,
	p chan<- RescanProgress, cancel <-chan struct{}) error {

	blockHashStorage := make([]chainhash.Hash, maxBlocksPerRescan)
	rescanFrom := *startHash
	inclusive := true
	for {
		select {
		case <-cancel:
			return nil
		default:
		}

		var rescanBlocks []chainhash.Hash
		err := walletdb.View(w.db, func(dbtx walletdb.ReadTx) error {
			txmgrNs := dbtx.ReadBucket(wtxmgrNamespaceKey)
			var err error
			rescanBlocks, err = w.TxStore.GetMainChainBlockHashes(txmgrNs,
				&rescanFrom, inclusive, blockHashStorage)
			return err
		})
		if err != nil {
			return err
		}
		if len(rescanBlocks) == 0 {
			return nil
		}

		scanningThrough := height + int32(len(rescanBlocks)) - 1
		log.Infof("Rescanning blocks %v-%v...", height,
			scanningThrough)
		rescanResults, err := chainClient.Rescan(rescanBlocks)
		if err != nil {
			return err
		}
		var rawBlockHeader wtxmgr.RawBlockHeader
		err = walletdb.Update(w.db, func(dbtx walletdb.ReadWriteTx) error {
			txmgrNs := dbtx.ReadWriteBucket(wtxmgrNamespaceKey)
			for _, r := range rescanResults.DiscoveredData {
				blockHash, err := chainhash.NewHashFromStr(r.Hash)
				if err != nil {
					return err
				}
				blockMeta, err := w.TxStore.GetBlockMetaForHash(txmgrNs, blockHash)
				if err != nil {
					return err
				}
				serHeader, err := w.TxStore.GetSerializedBlockHeader(txmgrNs,
					blockHash)
				if err != nil {
					return err
				}
				err = copyHeaderSliceToArray(&rawBlockHeader, serHeader)
				if err != nil {
					return err
				}

				for _, hexTx := range r.Transactions {
					serTx, err := hex.DecodeString(hexTx)
					if err != nil {
						return err
					}
					err = w.processTransaction(dbtx, serTx, &rawBlockHeader,
						&blockMeta)
					if err != nil {
						return err
					}
				}
			}
			return nil
		})
		if err != nil {
			return err
		}
		if p != nil {
			p <- RescanProgress{ScannedThrough: scanningThrough}
		}
		rescanFrom = rescanBlocks[len(rescanBlocks)-1]
		height += int32(len(rescanBlocks))
		inclusive = false
	}
}
開發者ID:decred,項目名稱:dcrwallet,代碼行數:86,代碼來源:rescan.go


注:本文中的github.com/decred/dcrwallet/chain.RPCClient.Rescan方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。