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 func (BlockHeader) typ() string { return "blockheader" }
   8 func (bh *BlockHeader) writeForHash(w io.Writer) {
   9         mustWriteForHash(w, bh.Version)
  10         mustWriteForHash(w, bh.Height)
  11         mustWriteForHash(w, bh.PreviousBlockId)
  12         mustWriteForHash(w, bh.Timestamp)
  13         mustWriteForHash(w, bh.TransactionsRoot)
  14 }
  15
  16 // NewBlockHeader creates a new BlockHeader and populates
  17 // its body.
  18 func NewBlockHeader(version, height uint64, previousBlockID *Hash, timestamp uint64, transactionsRoot *Hash) *BlockHeader {
  19         return &BlockHeader{
  20                 Version:          version,
  21                 Height:           height,
  22                 PreviousBlockId:  previousBlockID,
  23                 Timestamp:        timestamp,
  24                 TransactionsRoot: transactionsRoot,
  25         }
  26 }