protocol/bc/blockheader.go

   1 package bc
   2
   3 import "io"
   4
   5 // BlockHeader contains the header information for a blockchain
   6 // block. It satisfies the Entry interface.
   7
   8 func (BlockHeader) typ() string { return "blockheader" }
   9 func (bh *BlockHeader) writeForHash(w io.Writer) {
  10         mustWriteForHash(w, bh.Version)
  11         mustWriteForHash(w, bh.Height)
  12         mustWriteForHash(w, bh.PreviousBlockId)
  13         mustWriteForHash(w, bh.TimestampMs)
  14         mustWriteForHash(w, bh.TransactionsRoot)
  15         mustWriteForHash(w, bh.AssetsRoot)
  16         mustWriteForHash(w, bh.NextConsensusProgram)
  17         mustWriteForHash(w, bh.ExtHash)
  18 }
  19
  20 // NewBlockHeader creates a new BlockHeader and populates
  21 // its body.
  22 func NewBlockHeader(version, height uint64, previousBlockID *Hash, timestampMS uint64, transactionsRoot, assetsRoot *Hash, nextConsensusProgram []byte) *BlockHeader {
  23         return &BlockHeader{
  24                 Version:              version,
  25                 Height:               height,
  26                 PreviousBlockId:      previousBlockID,
  27                 TimestampMs:          timestampMS,
  28                 TransactionsRoot:     transactionsRoot,
  29                 AssetsRoot:           assetsRoot,
  30                 NextConsensusProgram: nextConsensusProgram,
  31         }
  32 }