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block_header_staging_shard.go
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/
block_header_staging_shard.go
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package blockheaderstore
import (
"github.com/sedraxnet/sedraxd/domain/consensus/model"
"github.com/sedraxnet/sedraxd/domain/consensus/model/externalapi"
)
type blockHeaderStagingShard struct {
store *blockHeaderStore
toAdd map[externalapi.DomainHash]externalapi.BlockHeader
toDelete map[externalapi.DomainHash]struct{}
}
func (bhs *blockHeaderStore) stagingShard(stagingArea *model.StagingArea) *blockHeaderStagingShard {
return stagingArea.GetOrCreateShard(bhs.shardID, func() model.StagingShard {
return &blockHeaderStagingShard{
store: bhs,
toAdd: make(map[externalapi.DomainHash]externalapi.BlockHeader),
toDelete: make(map[externalapi.DomainHash]struct{}),
}
}).(*blockHeaderStagingShard)
}
func (bhss *blockHeaderStagingShard) Commit(dbTx model.DBTransaction) error {
for hash, header := range bhss.toAdd {
headerBytes, err := bhss.store.serializeHeader(header)
if err != nil {
return err
}
err = dbTx.Put(bhss.store.hashAsKey(&hash), headerBytes)
if err != nil {
return err
}
bhss.store.cache.Add(&hash, header)
}
for hash := range bhss.toDelete {
err := dbTx.Delete(bhss.store.hashAsKey(&hash))
if err != nil {
return err
}
bhss.store.cache.Remove(&hash)
}
err := bhss.commitCount(dbTx)
if err != nil {
return err
}
return nil
}
func (bhss *blockHeaderStagingShard) commitCount(dbTx model.DBTransaction) error {
count := bhss.store.count(bhss)
countBytes, err := bhss.store.serializeHeaderCount(count)
if err != nil {
return err
}
err = dbTx.Put(bhss.store.countKey, countBytes)
if err != nil {
return err
}
bhss.store.countCached = count
return nil
}
func (bhss *blockHeaderStagingShard) isStaged() bool {
return len(bhss.toAdd) != 0 || len(bhss.toDelete) != 0
}