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.Seed)
  14         mustWriteForHash(w, bh.Timestamp)
  15         mustWriteForHash(w, bh.TransactionsRoot)
  16         mustWriteForHash(w, bh.AssetsRoot)
  17         mustWriteForHash(w, bh.Nonce)
  18         mustWriteForHash(w, bh.Bits)
  19         mustWriteForHash(w, bh.TransactionStatus)
  20 }
  21
  22 // NewBlockHeader creates a new BlockHeader and populates
  23 // its body.
  24 func NewBlockHeader(version, height uint64, previousBlockID, seed *Hash, timestamp uint64, transactionsRoot, assetsRoot *Hash, ts *TransactionStatus, nonce, bits uint64) *BlockHeader {
  25         return &BlockHeader{
  26                 Version:           version,
  27                 Height:            height,
  28                 PreviousBlockId:   previousBlockID,
  29                 Seed:              seed,
  30                 Timestamp:         timestamp,
  31                 TransactionsRoot:  transactionsRoot,
  32                 AssetsRoot:        assetsRoot,
  33                 TransactionStatus: ts,
  34                 Nonce:             nonce,
  35                 Bits:              bits,
  36         }
  37 }