601 lines
16 KiB
Go
601 lines
16 KiB
Go
package db
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// db_get.go contains the basic access functions to the database.
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import (
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"encoding/hex"
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"fmt"
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"log"
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"github.com/lbryio/hub/db/prefixes"
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"github.com/linxGnu/grocksdb"
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)
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func GetExpirationHeight(lastUpdatedHeight uint32) uint32 {
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return GetExpirationHeightFull(lastUpdatedHeight, false)
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}
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func GetExpirationHeightFull(lastUpdatedHeight uint32, extended bool) uint32 {
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if extended {
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return lastUpdatedHeight + NExtendedClaimExpirationTime
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}
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if lastUpdatedHeight < NExtendedClaimExpirationForkHeight {
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return lastUpdatedHeight + NOriginalClaimExpirationTime
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}
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return lastUpdatedHeight + NExtendedClaimExpirationTime
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}
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// EnsureHandle is a helper function to ensure that the db has a handle to the given column family.
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func (db *ReadOnlyDBColumnFamily) EnsureHandle(prefix byte) (*grocksdb.ColumnFamilyHandle, error) {
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cfName := string(prefix)
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handle := db.Handles[cfName]
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if handle == nil {
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return nil, fmt.Errorf("%s handle not found", cfName)
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}
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return handle, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetBlockHash(height uint32) ([]byte, error) {
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handle, err := db.EnsureHandle(prefixes.BlockHash)
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if err != nil {
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return nil, err
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}
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key := prefixes.NewBlockHashKey(height)
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rawKey := key.PackKey()
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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if err != nil {
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return nil, err
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} else if slice.Size() == 0 {
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return nil, err
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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return rawValue, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetHeader(height uint32) ([]byte, error) {
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handle, err := db.EnsureHandle(prefixes.Header)
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if err != nil {
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return nil, err
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}
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key := prefixes.NewHeaderKey(height)
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rawKey := key.PackKey()
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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if err != nil {
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return nil, err
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} else if slice.Size() == 0 {
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return nil, err
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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return rawValue, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetStreamsAndChannelRepostedByChannelHashes(reposterChannelHashes [][]byte) (map[string][]byte, map[string][]byte, error) {
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handle, err := db.EnsureHandle(prefixes.ChannelToClaim)
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if err != nil {
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return nil, nil, err
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}
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streams := make(map[string][]byte)
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channels := make(map[string][]byte)
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for _, reposterChannelHash := range reposterChannelHashes {
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key := prefixes.NewChannelToClaimKeyWHash(reposterChannelHash)
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rawKeyPrefix := prefixes.ChannelToClaimKeyPackPartial(key, 1)
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options := NewIterateOptions().WithCfHandle(handle).WithPrefix(rawKeyPrefix)
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options = options.WithIncludeKey(false).WithIncludeValue(true)
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ch := IterCF(db.DB, options)
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// for stream := range Iterate(db.DB, prefixes.ChannelToClaim, []byte{reposterChannelHash}, false) {
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for stream := range ch {
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value := stream.Value.(*prefixes.ChannelToClaimValue)
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repost, err := db.GetRepost(value.ClaimHash)
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if err != nil {
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return nil, nil, err
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}
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if repost != nil {
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txo, err := db.GetClaimTxo(repost)
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if err != nil {
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return nil, nil, err
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}
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if txo != nil {
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repostStr := hex.EncodeToString(repost)
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if normalName := txo.NormalizedName(); len(normalName) > 0 && normalName[0] == '@' {
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channels[repostStr] = reposterChannelHash
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} else {
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streams[repostStr] = reposterChannelHash
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}
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}
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}
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}
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}
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return streams, channels, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetClaimsInChannelCount(channelHash []byte) (uint32, error) {
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handle, err := db.EnsureHandle(prefixes.ChannelCount)
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if err != nil {
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return 0, err
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}
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key := prefixes.NewChannelCountKey(channelHash)
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rawKey := key.PackKey()
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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if err != nil {
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return 0, err
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} else if slice.Size() == 0 {
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return 0, nil
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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value := prefixes.ChannelCountValueUnpack(rawValue)
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return value.Count, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetShortClaimIdUrl(name string, normalizedName string, claimHash []byte, rootTxNum uint32, rootPosition uint16) (string, error) {
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prefix := []byte{prefixes.ClaimShortIdPrefix}
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handle, err := db.EnsureHandle(prefixes.ClaimShortIdPrefix)
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if err != nil {
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return "", err
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}
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claimId := hex.EncodeToString(claimHash)
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claimIdLen := len(claimId)
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for prefixLen := 0; prefixLen < 10; prefixLen++ {
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var j int = prefixLen + 1
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if j > claimIdLen {
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j = claimIdLen
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}
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partialClaimId := claimId[:j]
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partialKey := prefixes.NewClaimShortIDKey(normalizedName, partialClaimId)
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log.Printf("partialKey: %#v\n", partialKey)
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keyPrefix := prefixes.ClaimShortIDKeyPackPartial(partialKey, 2)
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// Prefix and handle
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options := NewIterateOptions().WithPrefix(prefix).WithCfHandle(handle)
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// Start and stop bounds
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options = options.WithStart(keyPrefix)
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// Don't include the key
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options = options.WithIncludeValue(false)
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ch := IterCF(db.DB, options)
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row := <-ch
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if row == nil {
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continue
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}
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key := row.Key.(*prefixes.ClaimShortIDKey)
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if key.RootTxNum == rootTxNum && key.RootPosition == rootPosition {
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return fmt.Sprintf("%s#%s", name, key.PartialClaimId), nil
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}
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}
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return "", nil
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}
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func (db *ReadOnlyDBColumnFamily) GetRepost(claimHash []byte) ([]byte, error) {
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handle, err := db.EnsureHandle(prefixes.Repost)
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if err != nil {
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return nil, err
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}
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key := prefixes.NewRepostKey(claimHash)
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rawKey := key.PackKey()
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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if err != nil {
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return nil, err
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} else if slice.Size() == 0 {
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return nil, nil
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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value := prefixes.RepostValueUnpack(rawValue)
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return value.RepostedClaimHash, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetRepostedCount(claimHash []byte) (int, error) {
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handle, err := db.EnsureHandle(prefixes.RepostedClaim)
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if err != nil {
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return 0, err
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}
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key := prefixes.NewRepostedKey(claimHash)
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keyPrefix := prefixes.RepostedKeyPackPartial(key, 1)
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// Prefix and handle
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options := NewIterateOptions().WithPrefix(keyPrefix).WithCfHandle(handle)
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// Start and stop bounds
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// options = options.WithStart(keyPrefix)
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// Don't include the key
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options = options.WithIncludeValue(false)
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var i int = 0
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ch := IterCF(db.DB, options)
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for range ch {
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i++
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}
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return i, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetChannelForClaim(claimHash []byte, txNum uint32, position uint16) ([]byte, error) {
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handle, err := db.EnsureHandle(prefixes.ClaimToChannel)
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if err != nil {
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return nil, err
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}
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key := prefixes.NewClaimToChannelKey(claimHash, txNum, position)
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rawKey := key.PackKey()
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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if err != nil {
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return nil, err
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} else if slice.Size() == 0 {
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return nil, nil
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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value := prefixes.ClaimToChannelValueUnpack(rawValue)
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return value.SigningHash, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetActiveAmount(claimHash []byte, txoType uint8, height uint32) (uint64, error) {
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handle, err := db.EnsureHandle(prefixes.ActiveAmount)
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if err != nil {
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return 0, err
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}
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startKey := prefixes.NewActiveAmountKey(claimHash, txoType, 0)
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endKey := prefixes.NewActiveAmountKey(claimHash, txoType, height)
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startKeyRaw := prefixes.ActiveAmountKeyPackPartial(startKey, 3)
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endKeyRaw := prefixes.ActiveAmountKeyPackPartial(endKey, 3)
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// Prefix and handle
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options := NewIterateOptions().WithPrefix([]byte{prefixes.ActiveAmount}).WithCfHandle(handle)
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// Start and stop bounds
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options = options.WithStart(startKeyRaw).WithStop(endKeyRaw)
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// Don't include the key
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options = options.WithIncludeKey(false).WithIncludeValue(true)
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ch := IterCF(db.DB, options)
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var sum uint64 = 0
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for kv := range ch {
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sum += kv.Value.(*prefixes.ActiveAmountValue).Amount
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}
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return sum, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetEffectiveAmount(claimHash []byte, supportOnly bool) (uint64, error) {
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supportAmount, err := db.GetActiveAmount(claimHash, prefixes.ACTIVATED_SUPPORT_TXO_TYPE, db.Height+1)
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if err != nil {
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return 0, err
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}
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if supportOnly {
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return supportAmount, nil
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}
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activationAmount, err := db.GetActiveAmount(claimHash, prefixes.ACTIVATED_CLAIM_TXO_TYPE, db.Height+1)
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if err != nil {
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return 0, err
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}
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return activationAmount + supportAmount, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetSupportAmount(claimHash []byte) (uint64, error) {
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handle, err := db.EnsureHandle(prefixes.SupportAmount)
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if err != nil {
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return 0, err
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}
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key := prefixes.NewSupportAmountKey(claimHash)
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rawKey := key.PackKey()
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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if err != nil {
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return 0, err
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} else if slice.Size() == 0 {
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return 0, nil
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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value := prefixes.SupportAmountValueUnpack(rawValue)
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return value.Amount, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetTxHash(txNum uint32) ([]byte, error) {
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// TODO: caching
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handle, err := db.EnsureHandle(prefixes.TxHash)
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if err != nil {
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return nil, err
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}
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key := prefixes.NewTxHashKey(txNum)
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rawKey := key.PackKey()
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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if err != nil {
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return nil, err
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}
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if slice.Size() == 0 {
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return nil, nil
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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return rawValue, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetActivation(txNum uint32, postition uint16) (uint32, error) {
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return db.GetActivationFull(txNum, postition, false)
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}
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func (db *ReadOnlyDBColumnFamily) GetActivationFull(txNum uint32, postition uint16, isSupport bool) (uint32, error) {
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var typ uint8
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handle, err := db.EnsureHandle(prefixes.ActivatedClaimAndSupport)
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if err != nil {
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return 0, err
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}
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if isSupport {
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typ = prefixes.ACTIVATED_SUPPORT_TXO_TYPE
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} else {
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typ = prefixes.ACTIVATED_CLAIM_TXO_TYPE
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}
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key := prefixes.NewActivationKey(typ, txNum, postition)
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rawKey := key.PackKey()
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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if err != nil {
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return 0, err
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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value := prefixes.ActivationValueUnpack(rawValue)
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// Does this need to explicitly return an int64, in case the uint32 overflows the max of an int?
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return value.Height, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetClaimTxo(claim []byte) (*prefixes.ClaimToTXOValue, error) {
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return db.GetCachedClaimTxo(claim, false)
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}
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func (db *ReadOnlyDBColumnFamily) GetCachedClaimTxo(claim []byte, useCache bool) (*prefixes.ClaimToTXOValue, error) {
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// TODO: implement cache
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handle, err := db.EnsureHandle(prefixes.ClaimToTXO)
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if err != nil {
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return nil, err
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}
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key := prefixes.NewClaimToTXOKey(claim)
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rawKey := key.PackKey()
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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if err != nil {
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return nil, err
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}
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if slice.Size() == 0 {
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return nil, nil
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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value := prefixes.ClaimToTXOValueUnpack(rawValue)
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return value, nil
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}
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func (db *ReadOnlyDBColumnFamily) ControllingClaimIter() <-chan *prefixes.PrefixRowKV {
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handle, err := db.EnsureHandle(prefixes.ClaimTakeover)
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if err != nil {
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return nil
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}
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key := prefixes.NewClaimTakeoverKey("")
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var rawKeyPrefix []byte = nil
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rawKeyPrefix = prefixes.ClaimTakeoverKeyPackPartial(key, 0)
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options := NewIterateOptions().WithCfHandle(handle).WithPrefix(rawKeyPrefix)
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options = options.WithIncludeValue(true) //.WithIncludeStop(true)
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ch := IterCF(db.DB, options)
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return ch
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}
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func (db *ReadOnlyDBColumnFamily) GetControllingClaim(name string) (*prefixes.ClaimTakeoverValue, error) {
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handle, err := db.EnsureHandle(prefixes.ClaimTakeover)
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if err != nil {
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return nil, err
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}
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log.Println(name)
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key := prefixes.NewClaimTakeoverKey(name)
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rawKey := key.PackKey()
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log.Println(hex.EncodeToString(rawKey))
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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log.Printf("slice: %#v", slice)
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log.Printf("err: %#v", err)
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if err != nil {
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return nil, err
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}
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if slice.Size() == 0 {
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return nil, nil
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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value := prefixes.ClaimTakeoverValueUnpack(rawValue)
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return value, nil
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}
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func (db *ReadOnlyDBColumnFamily) FsGetClaimByHash(claimHash []byte) (*ResolveResult, error) {
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claim, err := db.GetCachedClaimTxo(claimHash, true)
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if err != nil {
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return nil, err
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}
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activation, err := db.GetActivation(claim.TxNum, claim.Position)
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if err != nil {
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return nil, err
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}
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log.Printf("%#v\n%#v\n%#v\n", claim, hex.EncodeToString(claimHash), activation)
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return PrepareResolveResult(
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db,
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claim.TxNum,
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claim.Position,
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claimHash,
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claim.Name,
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claim.RootTxNum,
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claim.RootPosition,
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activation,
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claim.ChannelSignatureIsValid,
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)
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}
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func (db *ReadOnlyDBColumnFamily) GetTxCount(height uint32) (*prefixes.TxCountValue, error) {
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handle, err := db.EnsureHandle(prefixes.TxCount)
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if err != nil {
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return nil, err
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}
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key := prefixes.NewTxCountKey(height)
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rawKey := key.PackKey()
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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if err != nil {
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return nil, err
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}
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if slice.Size() == 0 {
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return nil, nil
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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value := prefixes.TxCountValueUnpack(rawValue)
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return value, nil
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}
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func (db *ReadOnlyDBColumnFamily) GetDBState() (*prefixes.DBStateValue, error) {
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handle, err := db.EnsureHandle(prefixes.DBState)
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if err != nil {
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return nil, err
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}
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key := prefixes.NewDBStateKey()
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rawKey := key.PackKey()
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slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
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if err != nil {
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return nil, err
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} else if slice.Size() == 0 {
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return nil, nil
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}
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rawValue := make([]byte, len(slice.Data()))
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copy(rawValue, slice.Data())
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value := prefixes.DBStateValueUnpack(rawValue)
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return value, nil
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}
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func (db *ReadOnlyDBColumnFamily) EffectiveAmountNameIter(normalizedName string) <-chan *prefixes.PrefixRowKV {
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handle, err := db.EnsureHandle(prefixes.EffectiveAmount)
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if err != nil {
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return nil
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}
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key := prefixes.NewEffectiveAmountKey(normalizedName)
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var rawKeyPrefix []byte = nil
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rawKeyPrefix = prefixes.EffectiveAmountKeyPackPartial(key, 1)
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options := NewIterateOptions().WithCfHandle(handle).WithPrefix(rawKeyPrefix)
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options = options.WithIncludeValue(true) //.WithIncludeStop(true)
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ch := IterCF(db.DB, options)
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return ch
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}
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|
func (db *ReadOnlyDBColumnFamily) ClaimShortIdIter(normalizedName string, claimId string) <-chan *prefixes.PrefixRowKV {
|
|
handle, err := db.EnsureHandle(prefixes.ClaimShortIdPrefix)
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
key := prefixes.NewClaimShortIDKey(normalizedName, claimId)
|
|
var rawKeyPrefix []byte = nil
|
|
if claimId != "" {
|
|
rawKeyPrefix = prefixes.ClaimShortIDKeyPackPartial(key, 2)
|
|
} else {
|
|
rawKeyPrefix = prefixes.ClaimShortIDKeyPackPartial(key, 1)
|
|
}
|
|
options := NewIterateOptions().WithCfHandle(handle).WithPrefix(rawKeyPrefix)
|
|
options = options.WithIncludeValue(true) //.WithIncludeStop(true)
|
|
ch := IterCF(db.DB, options)
|
|
return ch
|
|
}
|
|
|
|
func (db *ReadOnlyDBColumnFamily) GetCachedClaimHash(txNum uint32, position uint16) (*prefixes.TXOToClaimValue, error) {
|
|
// TODO: implement cache
|
|
handle, err := db.EnsureHandle(prefixes.TXOToClaim)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
key := prefixes.NewTXOToClaimKey(txNum, position)
|
|
rawKey := key.PackKey()
|
|
|
|
slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
|
|
if err != nil {
|
|
return nil, err
|
|
} else if slice.Size() == 0 {
|
|
return nil, nil
|
|
}
|
|
|
|
rawValue := make([]byte, len(slice.Data()))
|
|
copy(rawValue, slice.Data())
|
|
value := prefixes.TXOToClaimValueUnpack(rawValue)
|
|
return value, nil
|
|
}
|
|
|
|
// GetBlockerHash get the hash of the blocker or filterer of the claim.
|
|
// TODO: this currently converts the byte arrays to strings, which is not
|
|
// very efficient. Might want to figure out a better way to do this.
|
|
func (db *ReadOnlyDBColumnFamily) GetBlockerHash(claimHash, repostedClaimHash, channelHash []byte) ([]byte, []byte, error) {
|
|
claimHashStr := string(claimHash)
|
|
respostedClaimHashStr := string(repostedClaimHash)
|
|
channelHashStr := string(channelHash)
|
|
|
|
var blockedHash []byte = nil
|
|
var filteredHash []byte = nil
|
|
|
|
blockedHash = db.BlockedStreams[claimHashStr]
|
|
if blockedHash == nil {
|
|
blockedHash = db.BlockedStreams[respostedClaimHashStr]
|
|
}
|
|
if blockedHash == nil {
|
|
blockedHash = db.BlockedChannels[claimHashStr]
|
|
}
|
|
if blockedHash == nil {
|
|
blockedHash = db.BlockedChannels[respostedClaimHashStr]
|
|
}
|
|
if blockedHash == nil {
|
|
blockedHash = db.BlockedChannels[channelHashStr]
|
|
}
|
|
|
|
filteredHash = db.FilteredStreams[claimHashStr]
|
|
if filteredHash == nil {
|
|
filteredHash = db.FilteredStreams[respostedClaimHashStr]
|
|
}
|
|
if filteredHash == nil {
|
|
filteredHash = db.FilteredChannels[claimHashStr]
|
|
}
|
|
if filteredHash == nil {
|
|
filteredHash = db.FilteredChannels[respostedClaimHashStr]
|
|
}
|
|
if filteredHash == nil {
|
|
filteredHash = db.FilteredChannels[channelHashStr]
|
|
}
|
|
|
|
return blockedHash, filteredHash, nil
|
|
}
|