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trade.go
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trade.go
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// Copyright Fuzamei Corp. 2018 All Rights Reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package executor
/*
trade执行器支持trade的创建和交易,
主要提供操作有以下几种:
1)挂单出售;
2)购买指定的卖单;
3)撤销卖单;
4)挂单购买;
5)出售指定的买单;
6)撤销买单;
*/
import (
log "github.com/33cn/chain33/common/log/log15"
"github.com/33cn/chain33/common/db/table"
drivers "github.com/33cn/chain33/system/dapp"
"github.com/33cn/chain33/types"
pty "github.com/GM-Publicchain/gm/plugin/dapp/trade/types"
)
var (
tradelog = log.New("module", "execs.trade")
defaultAssetExec = "token"
driverName = "trade"
)
func init() {
ety := types.LoadExecutorType(driverName)
ety.InitFuncList(types.ListMethod(&trade{}))
}
// Init : 注册当前trade合约
func Init(name string, sub []byte) {
drivers.Register(GetName(), newTrade, types.GetDappFork(driverName, "Enable"))
}
// GetName : 获取trade合约名字
func GetName() string {
return newTrade().GetName()
}
type trade struct {
drivers.DriverBase
}
func newTrade() drivers.Driver {
t := &trade{}
t.SetChild(t)
t.SetExecutorType(types.LoadExecutorType(driverName))
return t
}
func (t *trade) GetDriverName() string {
return driverName
}
func (t *trade) getSellOrderFromDb(sellID []byte) *pty.SellOrder {
value, err := t.GetStateDB().Get(sellID)
if err != nil {
panic(err)
}
var sellorder pty.SellOrder
types.Decode(value, &sellorder)
return &sellorder
}
func genSaveSellKv(sellorder *pty.SellOrder) []*types.KeyValue {
status := sellorder.Status
var kv []*types.KeyValue
kv = saveSellOrderKeyValue(kv, sellorder, status)
if pty.TradeOrderStatusSoldOut == status || pty.TradeOrderStatusRevoked == status {
tradelog.Debug("trade saveSell ", "remove old status onsale to soldout or revoked with sellid", sellorder.SellID)
kv = deleteSellOrderKeyValue(kv, sellorder, pty.TradeOrderStatusOnSale)
}
return kv
}
func (t *trade) saveSell(base *pty.ReceiptSellBase, ty int32, tx *types.Transaction, txIndex string, ldb *table.Table) []*types.KeyValue {
sellorder := t.getSellOrderFromDb([]byte(base.SellID))
if ty == pty.TyLogTradeSellLimit && sellorder.SoldBoardlot == 0 {
newOrder := t.genSellLimit(tx, base, sellorder, txIndex)
tradelog.Info("Table", "sell-add", newOrder)
ldb.Add(newOrder)
} else {
t.updateSellLimit(tx, base, sellorder, txIndex, ldb)
}
return genSaveSellKv(sellorder)
}
func deleteSellOrderKeyValue(kv []*types.KeyValue, sellorder *pty.SellOrder, status int32) []*types.KeyValue {
return genSellOrderKeyValue(kv, sellorder, status, nil)
}
func saveSellOrderKeyValue(kv []*types.KeyValue, sellorder *pty.SellOrder, status int32) []*types.KeyValue {
sellID := []byte(sellorder.SellID)
return genSellOrderKeyValue(kv, sellorder, status, sellID)
}
func genDeleteSellKv(sellorder *pty.SellOrder) []*types.KeyValue {
status := sellorder.Status
var kv []*types.KeyValue
kv = deleteSellOrderKeyValue(kv, sellorder, status)
if pty.TradeOrderStatusSoldOut == status || pty.TradeOrderStatusRevoked == status {
tradelog.Debug("trade saveSell ", "remove old status onsale to soldout or revoked with sellID", sellorder.SellID)
kv = saveSellOrderKeyValue(kv, sellorder, pty.TradeOrderStatusOnSale)
}
return kv
}
func (t *trade) deleteSell(base *pty.ReceiptSellBase, ty int32, tx *types.Transaction, txIndex string, ldb *table.Table, tradedBoardlot int64) []*types.KeyValue {
sellorder := t.getSellOrderFromDb([]byte(base.SellID))
if ty == pty.TyLogTradeSellLimit && sellorder.SoldBoardlot == 0 {
ldb.Del([]byte(txIndex))
} else {
t.rollBackSellLimit(tx, base, sellorder, txIndex, ldb, tradedBoardlot)
}
return genDeleteSellKv(sellorder)
}
func (t *trade) saveBuy(receiptTradeBuy *pty.ReceiptBuyBase, tx *types.Transaction, txIndex string, ldb *table.Table) []*types.KeyValue {
//tradelog.Info("save", "buy", receiptTradeBuy)
var kv []*types.KeyValue
order := t.genBuyMarket(tx, receiptTradeBuy, txIndex)
tradelog.Debug("trade BuyMarket save local", "order", order)
ldb.Add(order)
return saveBuyMarketOrderKeyValue(kv, receiptTradeBuy, pty.TradeOrderStatusBoughtOut, t.GetHeight())
}
func (t *trade) deleteBuy(receiptTradeBuy *pty.ReceiptBuyBase, txIndex string, ldb *table.Table) []*types.KeyValue {
var kv []*types.KeyValue
ldb.Del([]byte(txIndex))
return deleteBuyMarketOrderKeyValue(kv, receiptTradeBuy, pty.TradeOrderStatusBoughtOut, t.GetHeight())
}
// BuyLimit Local
func (t *trade) getBuyOrderFromDb(buyID []byte) *pty.BuyLimitOrder {
value, err := t.GetStateDB().Get(buyID)
if err != nil {
panic(err)
}
var buyOrder pty.BuyLimitOrder
types.Decode(value, &buyOrder)
return &buyOrder
}
func genSaveBuyLimitKv(buyOrder *pty.BuyLimitOrder) []*types.KeyValue {
status := buyOrder.Status
var kv []*types.KeyValue
kv = saveBuyLimitOrderKeyValue(kv, buyOrder, status)
if pty.TradeOrderStatusBoughtOut == status || pty.TradeOrderStatusBuyRevoked == status {
tradelog.Debug("trade saveBuyLimit ", "remove old status with Buyid", buyOrder.BuyID)
kv = deleteBuyLimitKeyValue(kv, buyOrder, pty.TradeOrderStatusOnBuy)
}
return kv
}
func (t *trade) saveBuyLimit(buy *pty.ReceiptBuyBase, ty int32, tx *types.Transaction, txIndex string, ldb *table.Table) []*types.KeyValue {
buyOrder := t.getBuyOrderFromDb([]byte(buy.BuyID))
tradelog.Debug("Table", "buy-add", buyOrder)
if buyOrder.Status == pty.TradeOrderStatusOnBuy && buy.BoughtBoardlot == 0 {
order := t.genBuyLimit(tx, buy, txIndex)
tradelog.Info("Table", "buy-add", order)
ldb.Add(order)
} else {
t.updateBuyLimit(tx, buy, buyOrder, txIndex, ldb)
}
return genSaveBuyLimitKv(buyOrder)
}
func saveBuyLimitOrderKeyValue(kv []*types.KeyValue, buyOrder *pty.BuyLimitOrder, status int32) []*types.KeyValue {
buyID := []byte(buyOrder.BuyID)
return genBuyLimitOrderKeyValue(kv, buyOrder, status, buyID)
}
func deleteBuyLimitKeyValue(kv []*types.KeyValue, buyOrder *pty.BuyLimitOrder, status int32) []*types.KeyValue {
return genBuyLimitOrderKeyValue(kv, buyOrder, status, nil)
}
func genDeleteBuyLimitKv(buyOrder *pty.BuyLimitOrder) []*types.KeyValue {
status := buyOrder.Status
var kv []*types.KeyValue
kv = deleteBuyLimitKeyValue(kv, buyOrder, status)
if pty.TradeOrderStatusBoughtOut == status || pty.TradeOrderStatusBuyRevoked == status {
tradelog.Debug("trade saveSell ", "remove old status onsale to soldout or revoked with sellid", buyOrder.BuyID)
kv = saveBuyLimitOrderKeyValue(kv, buyOrder, pty.TradeOrderStatusOnBuy)
}
return kv
}
func (t *trade) deleteBuyLimit(buy *pty.ReceiptBuyBase, ty int32, tx *types.Transaction, txIndex string, ldb *table.Table, traded int64) []*types.KeyValue {
buyOrder := t.getBuyOrderFromDb([]byte(buy.BuyID))
if ty == pty.TyLogTradeBuyLimit && buy.BoughtBoardlot == 0 {
ldb.Del([]byte(txIndex))
} else {
t.rollbackBuyLimit(tx, buy, buyOrder, txIndex, ldb, traded)
}
return genDeleteBuyLimitKv(buyOrder)
}
func (t *trade) saveSellMarket(receiptTradeBuy *pty.ReceiptSellBase, tx *types.Transaction, txIndex string, ldb *table.Table) []*types.KeyValue {
var kv []*types.KeyValue
order := t.genSellMarket(tx, receiptTradeBuy, txIndex)
ldb.Add(order)
return saveSellMarketOrderKeyValue(kv, receiptTradeBuy, pty.TradeOrderStatusSoldOut, t.GetHeight())
}
func (t *trade) deleteSellMarket(receiptTradeBuy *pty.ReceiptSellBase, txIndex string, ldb *table.Table) []*types.KeyValue {
var kv []*types.KeyValue
ldb.Del([]byte(txIndex))
return deleteSellMarketOrderKeyValue(kv, receiptTradeBuy, pty.TradeOrderStatusSoldOut, t.GetHeight())
}
func saveSellMarketOrderKeyValue(kv []*types.KeyValue, receipt *pty.ReceiptSellBase, status int32, height int64) []*types.KeyValue {
txhash := []byte(receipt.TxHash)
return genSellMarketOrderKeyValue(kv, receipt, status, height, txhash)
}
func deleteSellMarketOrderKeyValue(kv []*types.KeyValue, receipt *pty.ReceiptSellBase, status int32, height int64) []*types.KeyValue {
return genSellMarketOrderKeyValue(kv, receipt, status, height, nil)
}
func saveBuyMarketOrderKeyValue(kv []*types.KeyValue, receipt *pty.ReceiptBuyBase, status int32, height int64) []*types.KeyValue {
txhash := []byte(receipt.TxHash)
return genBuyMarketOrderKeyValue(kv, receipt, status, height, txhash)
}
func deleteBuyMarketOrderKeyValue(kv []*types.KeyValue, receipt *pty.ReceiptBuyBase, status int32, height int64) []*types.KeyValue {
return genBuyMarketOrderKeyValue(kv, receipt, status, height, nil)
}
// CheckReceiptExecOk return true to check if receipt ty is ok
func (t *trade) CheckReceiptExecOk() bool {
return true
}