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Golang walletdb.Tx类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Golang中github.com/btcsuite/btcwallet/walletdb.Tx的典型用法代码示例。如果您正苦于以下问题:Golang Tx类的具体用法?Golang Tx怎么用?Golang Tx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Tx类的9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,您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: getMaxUsedIdx

// getMaxUsedIdx returns the highest used index from the used addresses bucket
// of the given pool, series and branch.
func getMaxUsedIdx(tx walletdb.Tx, poolID []byte, seriesID uint32, branch Branch) (Index, error) {
	maxIdx := Index(0)
	usedAddrs := tx.RootBucket().Bucket(poolID).Bucket(usedAddrsBucketName)
	bucket := usedAddrs.Bucket(getUsedAddrBucketID(seriesID, branch))
	if bucket == nil {
		return maxIdx, nil
	}
	// FIXME: This is far from optimal and should be optimized either by storing
	// a separate key in the DB with the highest used idx for every
	// series/branch or perhaps by doing a large gap linear forward search +
	// binary backwards search (e.g. check for 1000000, 2000000, ....  until it
	// doesn't exist, and then use a binary search to find the max using the
	// discovered bounds).
	err := bucket.ForEach(
		func(k, v []byte) error {
			idx := Index(bytesToUint32(k))
			if idx > maxIdx {
				maxIdx = idx
			}
			return nil
		})
	if err != nil {
		return Index(0), newError(ErrDatabase, "failed to get highest idx of used addresses", err)
	}
	return maxIdx, nil
}
开发者ID:justusranvier,项目名称:btcwallet,代码行数:28,代码来源:db.go


示例2: getUsedAddrHash

// getUsedAddrHash returns the addr hash with the given index from the used
// addresses bucket of the given pool, series and branch.
func getUsedAddrHash(tx walletdb.Tx, poolID []byte, seriesID uint32, branch Branch,
	index Index) []byte {

	usedAddrs := tx.RootBucket().Bucket(poolID).Bucket(usedAddrsBucketName)
	bucket := usedAddrs.Bucket(getUsedAddrBucketID(seriesID, branch))
	if bucket == nil {
		return nil
	}
	return bucket.Get(uint32ToBytes(uint32(index)))
}
开发者ID:justusranvier,项目名称:btcwallet,代码行数:12,代码来源:db.go


示例3: putUsedAddrHash

// putUsedAddrHash adds an entry (key==index, value==encryptedHash) to the used
// addresses bucket of the given pool, series and branch.
func putUsedAddrHash(tx walletdb.Tx, poolID []byte, seriesID uint32, branch Branch,
	index Index, encryptedHash []byte) error {

	usedAddrs := tx.RootBucket().Bucket(poolID).Bucket(usedAddrsBucketName)
	bucket, err := usedAddrs.CreateBucketIfNotExists(getUsedAddrBucketID(seriesID, branch))
	if err != nil {
		return newError(ErrDatabase, "failed to store used address hash", err)
	}
	return bucket.Put(uint32ToBytes(uint32(index)), encryptedHash)
}
开发者ID:justusranvier,项目名称:btcwallet,代码行数:12,代码来源:db.go


示例4: putSeriesRow

// putSeriesRow stores the given series row inside a voting pool bucket named
// after poolID. The voting pool bucket does not need to be created
// beforehand.
func putSeriesRow(tx walletdb.Tx, poolID []byte, ID uint32, row *dbSeriesRow) error {
	bucket, err := tx.RootBucket().CreateBucketIfNotExists(poolID)
	if err != nil {
		str := fmt.Sprintf("cannot create bucket %v", poolID)
		return newError(ErrDatabase, str, err)
	}
	bucket = bucket.Bucket(seriesBucketName)
	serialized, err := serializeSeriesRow(row)
	if err != nil {
		return err
	}
	err = bucket.Put(uint32ToBytes(ID), serialized)
	if err != nil {
		str := fmt.Sprintf("cannot put series %v into bucket %v", serialized, poolID)
		return newError(ErrDatabase, str, err)
	}
	return nil
}
开发者ID:justusranvier,项目名称:btcwallet,代码行数:21,代码来源:db.go


示例5: loadAllSeries

// loadAllSeries returns a map of all the series stored inside a voting pool
// bucket, keyed by id.
func loadAllSeries(tx walletdb.Tx, poolID []byte) (map[uint32]*dbSeriesRow, error) {
	bucket := tx.RootBucket().Bucket(poolID).Bucket(seriesBucketName)
	allSeries := make(map[uint32]*dbSeriesRow)
	err := bucket.ForEach(
		func(k, v []byte) error {
			seriesID := bytesToUint32(k)
			series, err := deserializeSeriesRow(v)
			if err != nil {
				return err
			}
			allSeries[seriesID] = series
			return nil
		})
	if err != nil {
		return nil, err
	}
	return allSeries, nil
}
开发者ID:justusranvier,项目名称:btcwallet,代码行数:20,代码来源:db.go


示例6: putPool

// putPool stores a voting pool in the database, creating a bucket named
// after the voting pool id and two other buckets inside it to store series and
// used addresses for that pool.
func putPool(tx walletdb.Tx, poolID []byte) error {
	poolBucket, err := tx.RootBucket().CreateBucket(poolID)
	if err != nil {
		return newError(ErrDatabase, fmt.Sprintf("cannot create pool %v", poolID), err)
	}
	_, err = poolBucket.CreateBucket(seriesBucketName)
	if err != nil {
		return newError(ErrDatabase, fmt.Sprintf("cannot create series bucket for pool %v",
			poolID), err)
	}
	_, err = poolBucket.CreateBucket(usedAddrsBucketName)
	if err != nil {
		return newError(ErrDatabase, fmt.Sprintf("cannot create used addrs bucket for pool %v",
			poolID), err)
	}
	_, err = poolBucket.CreateBucket(withdrawalsBucketName)
	if err != nil {
		return newError(
			ErrDatabase, fmt.Sprintf("cannot create withdrawals bucket for pool %v", poolID), err)
	}
	return nil
}
开发者ID:justusranvier,项目名称:btcwallet,代码行数:25,代码来源:db.go


示例7: getWithdrawal

func getWithdrawal(tx walletdb.Tx, poolID []byte, roundID uint32) []byte {
	bucket := tx.RootBucket().Bucket(poolID)
	return bucket.Get(uint32ToBytes(roundID))
}
开发者ID:justusranvier,项目名称:btcwallet,代码行数:4,代码来源:db.go


示例8: putWithdrawal

func putWithdrawal(tx walletdb.Tx, poolID []byte, roundID uint32, serialized []byte) error {
	bucket := tx.RootBucket().Bucket(poolID)
	return bucket.Put(uint32ToBytes(roundID), serialized)
}
开发者ID:justusranvier,项目名称:btcwallet,代码行数:4,代码来源:db.go


示例9: existsPool

// existsPool checks the existence of a bucket named after the given
// voting pool id.
func existsPool(tx walletdb.Tx, poolID []byte) bool {
	bucket := tx.RootBucket().Bucket(poolID)
	return bucket != nil
}
开发者ID:justusranvier,项目名称:btcwallet,代码行数:6,代码来源:db.go



注:本文中的github.com/btcsuite/btcwallet/walletdb.Tx类示例整理自Github/MSDocs等源码及文档管理平台,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。


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