Added address states for storing a session based address

1 files changed, 60 insertions, 0 deletions

diff --git a/ethchain/address.go b/ethchain/address.go
new file mode 100644
index 000000000..a228c7566
--- /dev/null
+++ b/ethchain/address.go
@@ -0,0 +1,60 @@
+package ethchain
+
+import (
+	"github.com/ethereum/eth-go/ethutil"
+	"math/big"
+)
+
+type Address struct {
+	Amount *big.Int
+	Nonce  uint64
+}
+
+func NewAddress(amount *big.Int) *Address {
+	return &Address{Amount: amount, Nonce: 0}
+}
+
+func NewAddressFromData(data []byte) *Address {
+	address := &Address{}
+	address.RlpDecode(data)
+
+	return address
+}
+
+func (a *Address) AddFee(fee *big.Int) {
+	a.Amount.Add(a.Amount, fee)
+}
+
+func (a *Address) RlpEncode() []byte {
+	return ethutil.Encode([]interface{}{a.Amount, a.Nonce})
+}
+
+func (a *Address) RlpDecode(data []byte) {
+	decoder := ethutil.NewValueFromBytes(data)
+
+	a.Amount = decoder.Get(0).BigInt()
+	a.Nonce = decoder.Get(1).Uint()
+}
+
+type AddrStateStore struct {
+	states map[string]*AddressState
+}
+
+func NewAddrStateStore() *AddrStateStore {
+	return &AddrStateStore{states: make(map[string]*AddressState)}
+}
+
+func (s *AddrStateStore) Add(addr []byte, account *Address) *AddressState {
+	state := &AddressState{Nonce: account.Nonce, Account: account}
+	s.states[string(addr)] = state
+	return state
+}
+
+func (s *AddrStateStore) Get(addr []byte) *AddressState {
+	return s.states[string(addr)]
+}
+
+type AddressState struct {
+	Nonce   uint64
+	Account *Address
+}