network: implement Consensus payloads

pkg/consensus/prepare_request.go

@@ -0,0 +1,43 @@
+package consensus
+
+import (
+	"github.com/CityOfZion/neo-go/pkg/core/transaction"
+	"github.com/CityOfZion/neo-go/pkg/io"
+	"github.com/CityOfZion/neo-go/pkg/util"
+)
+
+// prepareRequest represents dBFT PrepareRequest message.
+type prepareRequest struct {
+	Timestamp         uint32
+	Nonce             uint64
+	TransactionHashes []util.Uint256
+	MinerTransaction  transaction.Transaction
+	NextConsensus     util.Uint160
+}
+
+// EncodeBinary implements io.Serializable interface.
+func (p *prepareRequest) EncodeBinary(w *io.BinWriter) {
+	w.WriteLE(p.Timestamp)
+	w.WriteLE(p.Nonce)
+	w.WriteBE(p.NextConsensus[:])
+	w.WriteVarUint(uint64(len(p.TransactionHashes)))
+	for i := range p.TransactionHashes {
+		w.WriteBE(p.TransactionHashes[i][:])
+	}
+	p.MinerTransaction.EncodeBinary(w)
+}
+
+// DecodeBinary implements io.Serializable interface.
+func (p *prepareRequest) DecodeBinary(r *io.BinReader) {
+	r.ReadLE(&p.Timestamp)
+	r.ReadLE(&p.Nonce)
+	r.ReadBE(p.NextConsensus[:])
+
+	lenHashes := r.ReadVarUint()
+	p.TransactionHashes = make([]util.Uint256, lenHashes)
+	for i := range p.TransactionHashes {
+		r.ReadBE(p.TransactionHashes[i][:])
+	}
+
+	p.MinerTransaction.DecodeBinary(r)
+}