| New file | 
 |  |  | 
 |  |  | #include "book.hpp" | 
 |  |  | #include <chrono> | 
 |  |  | #include <iostream> | 
 |  |  |  | 
 |  |  | Order::Order(double price, OrderSideEnum side, int volume, | 
 |  |  |              std::chrono::nanoseconds timestamp, std::string id) | 
 |  |  |     : price{price}, side{side}, remaining_volume{volume}, | 
 |  |  |       filled_volume(0), timestamp{timestamp}, id{id} {} | 
 |  |  |  | 
 |  |  | Level::Level(Order &order) | 
 |  |  |     : price{order.price}, volume(order.remaining_volume), side{order.side}, | 
 |  |  |       timestamp{order.timestamp}, id{order.id} {} | 
 |  |  |  | 
 |  |  | bool operator<(const Level &a, const Level &b) { | 
 |  |  |   if (a.price < b.price) | 
 |  |  |     return true; | 
 |  |  |   else if (a.price == b.price && a.timestamp < b.timestamp) | 
 |  |  |     return true; | 
 |  |  |   else | 
 |  |  |     return false; | 
 |  |  | } | 
 |  |  |  | 
 |  |  | bool operator>(const Level &a, const Level &b) { | 
 |  |  |   if (a.price > b.price) | 
 |  |  |     return true; | 
 |  |  |   else if (a.price == b.price && a.timestamp > b.timestamp) | 
 |  |  |     return true; | 
 |  |  |   else | 
 |  |  |     return false; | 
 |  |  | } | 
 |  |  |  | 
 |  |  | bool operator<=(const Level &a, const Level &b) { | 
 |  |  |   if (a.price <= b.price) | 
 |  |  |     return true; | 
 |  |  |   else if (a.price == b.price && a.timestamp <= b.timestamp) | 
 |  |  |     return true; | 
 |  |  |   else | 
 |  |  |     return false; | 
 |  |  | } | 
 |  |  |  | 
 |  |  | bool operator>=(const Level &a, const Level &b) { | 
 |  |  |   if (a.price >= b.price) | 
 |  |  |     return true; | 
 |  |  |   else if (a.price == b.price && a.timestamp >= b.timestamp) | 
 |  |  |     return true; | 
 |  |  |   else | 
 |  |  |     return false; | 
 |  |  | } | 
 |  |  |  | 
 |  |  | bool operator==(const Level &a, const Level &b) { | 
 |  |  |   if (a.price == b.price && a.timestamp == b.timestamp) | 
 |  |  |     return true; | 
 |  |  |   else | 
 |  |  |     return false; | 
 |  |  | } | 
 |  |  |  | 
 |  |  | Book::Book() | 
 |  |  |     : bidSide(), askSide(), productType(TEST), product("a"), stationId("b"), | 
 |  |  |       unit("c"), expiry(std::chrono::nanoseconds(0)), aggFee(1), pasFee(-1), | 
 |  |  |       broFee(2) {} | 
 |  |  |  | 
 |  |  | Book::Book(ProductTypeEnum productType, std::string product, | 
 |  |  |            std::string stationId, std::string unit, | 
 |  |  |            std::chrono::nanoseconds expiry, double aggFee, double pasFee, | 
 |  |  |            double broFee) | 
 |  |  |     : bidSide{}, askSide{}, productType{productType}, product(product), | 
 |  |  |       stationId(stationId), unit(unit), expiry(expiry), aggFee(aggFee), | 
 |  |  |       pasFee(pasFee), broFee(broFee) {} | 
 |  |  |  | 
 |  |  | void Book::ask(Order &order) { | 
 |  |  |   while (this->bidSide.size() && this->bidSide.top().price > order.price) { | 
 |  |  |     if (this->bidSide.top().volume > order.remaining_volume) { | 
 |  |  |       int temp = this->bidSide.top().volume; | 
 |  |  |       order.filled_volume += temp; | 
 |  |  |       this->bidSide.topRemoveVolume(order.remaining_volume); | 
 |  |  |       order.remaining_volume -= temp; | 
 |  |  |     } else { | 
 |  |  |       order.remaining_volume -= this->bidSide.top().volume; | 
 |  |  |       order.filled_volume += this->bidSide.top().volume; | 
 |  |  |       this->bidSide.pop(); | 
 |  |  |     } | 
 |  |  |     if (order.remaining_volume > 0) { | 
 |  |  |       this->askSide.emplace(order); | 
 |  |  |     } | 
 |  |  |   } | 
 |  |  | } | 
 |  |  |  | 
 |  |  | void Book::bid(Order &order) { | 
 |  |  |   while (this->askSide.size() && this->askSide.top().price > order.price) { | 
 |  |  |     if (this->askSide.top().volume > order.remaining_volume) { | 
 |  |  |       int temp = this->askSide.top().volume; | 
 |  |  |       order.filled_volume += temp; | 
 |  |  |       this->askSide.topRemoveVolume(order.remaining_volume); | 
 |  |  |       order.remaining_volume -= temp; | 
 |  |  |     } else { | 
 |  |  |       order.remaining_volume -= this->askSide.top().volume; | 
 |  |  |       order.filled_volume += this->askSide.top().volume; | 
 |  |  |       this->askSide.pop(); | 
 |  |  |     } | 
 |  |  |     if (order.remaining_volume > 0) { | 
 |  |  |       this->bidSide.emplace(order); | 
 |  |  |     } | 
 |  |  |   } | 
 |  |  | } | 
 |  |  |  | 
 |  |  | void Book::printBook() { | 
 |  |  |   std::cout << "Sell side"; | 
 |  |  |   this->askSide.printTop(); | 
 |  |  |   std::cout << "Buy side"; | 
 |  |  |   this->bidSide.printTop(); | 
 |  |  | } | 
 |  |  |  | 
 |  |  | Book testBook(int orders, bool printBook) { | 
 |  |  |   Book b = Book(); | 
 |  |  |   std::chrono::nanoseconds time(1); | 
 |  |  |   for (int i = 0; i < orders; i++) { | 
 |  |  |     Order t(i, Buy, 10, time++, "a"); | 
 |  |  |     b.bid(t); | 
 |  |  |   } | 
 |  |  |   for (int i = orders + 1; i < 2 * orders; i++) { | 
 |  |  |     Order t(i, Sell, 10, time++, "b"); | 
 |  |  |     b.ask(t); | 
 |  |  |   } | 
 |  |  |   if (printBook) | 
 |  |  |     b.printBook(); | 
 |  |  |   return b; | 
 |  |  | } |