本文整理汇总了Golang中github.com/decred/dcrd/blockchain/stake.TicketDB.GetTopBlock方法的典型用法代码示例。如果您正苦于以下问题：Golang TicketDB.GetTopBlock方法的具体用法？Golang TicketDB.GetTopBlock怎么用？Golang TicketDB.GetTopBlock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类github.com/decred/dcrd/blockchain/stake.TicketDB的用法示例。
在下文中一共展示了TicketDB.GetTopBlock方法的1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: TicketDbThumbprint
// TicketDbThumbprint takes all the tickets in the respective ticket db,
// sorts them, hashes their contents into a list, and then hashes that list.
// The resultant hash is the thumbprint of the ticket database, and should
// be the same across all clients that are synced to the same block. Returns
// an array of hashes len 3, containing (1) live tickets (2) spent tickets
// and (3) missed tickets.
// Do NOT use on mainnet or in production. For debug use only! Make sure
// the blockchain is frozen when you call this function.
func TicketDbThumbprint(tmdb *stake.TicketDB, chainParams *chaincfg.Params) ([]*chainhash.Hash, error) {
// Container for the three master hashes to go into.
dbThumbprints := make([]*chainhash.Hash, 3, 3)
// (1) Live tickets.
allLiveTickets := stake.NewTicketDataSliceEmpty()
for i := 0; i < stake.BucketsSize; i++ {
bucketTickets, err := tmdb.DumpLiveTickets(uint8(i))
if err != nil {
return nil, err
}
for _, td := range bucketTickets {
allLiveTickets = append(allLiveTickets, td)
}
}
// Sort by the number data hash, since we already have this implemented
// and it's also unique.
sort.Sort(allLiveTickets)
// Create a buffer, dump all the data into it, and hash.
var buf bytes.Buffer
for _, td := range allLiveTickets {
writeTicketDataToBuf(&buf, td)
}
liveHash := chainhash.HashFunc(buf.Bytes())
liveThumbprint, err := chainhash.NewHash(liveHash[:])
if err != nil {
return nil, err
}
dbThumbprints[0] = liveThumbprint
// (2) Spent tickets.
height := tmdb.GetTopBlock()
allSpentTickets := stake.NewTicketDataSliceEmpty()
for i := int64(chainParams.StakeEnabledHeight); i <= height; i++ {
bucketTickets, err := tmdb.DumpSpentTickets(i)
if err != nil {
return nil, err
}
for _, td := range bucketTickets {
allSpentTickets = append(allSpentTickets, td)
}
}
sort.Sort(allSpentTickets)
buf.Reset() // Flush buffer
for _, td := range allSpentTickets {
writeTicketDataToBuf(&buf, td)
}
spentHash := chainhash.HashFunc(buf.Bytes())
spentThumbprint, err := chainhash.NewHash(spentHash[:])
if err != nil {
return nil, err
}
dbThumbprints[1] = spentThumbprint
// (3) Missed tickets.
allMissedTickets := stake.NewTicketDataSliceEmpty()
missedTickets, err := tmdb.DumpMissedTickets()
if err != nil {
return nil, err
}
for _, td := range missedTickets {
allMissedTickets = append(allMissedTickets, td)
}
sort.Sort(allMissedTickets)
buf.Reset() // Flush buffer
missedHash := chainhash.HashFunc(buf.Bytes())
missedThumbprint, err := chainhash.NewHash(missedHash[:])
if err != nil {
return nil, err
}
dbThumbprints[2] = missedThumbprint
return dbThumbprints, nil
}