diff options
Diffstat (limited to 'packages/0x.js/src/order_watcher/order_state_watcher.ts')
| -rw-r--r-- | packages/0x.js/src/order_watcher/order_state_watcher.ts | 76 |
1 files changed, 57 insertions, 19 deletions
diff --git a/packages/0x.js/src/order_watcher/order_state_watcher.ts b/packages/0x.js/src/order_watcher/order_state_watcher.ts index bafd7a994..fd7496699 100644 --- a/packages/0x.js/src/order_watcher/order_state_watcher.ts +++ b/packages/0x.js/src/order_watcher/order_state_watcher.ts @@ -6,6 +6,7 @@ import {assert} from '../utils/assert'; import {utils} from '../utils/utils'; import {artifacts} from '../artifacts'; import {AbiDecoder} from '../utils/abi_decoder'; +import {intervalUtils} from '../utils/interval_utils'; import {OrderStateUtils} from '../utils/order_state_utils'; import { LogEvent, @@ -24,14 +25,14 @@ import { ExchangeEvents, TokenEvents, ZeroExError, + ExchangeContractErrs, } from '../types'; import {Web3Wrapper} from '../web3_wrapper'; import {TokenWrapper} from '../contract_wrappers/token_wrapper'; import {ExchangeWrapper} from '../contract_wrappers/exchange_wrapper'; import {OrderFilledCancelledLazyStore} from '../stores/order_filled_cancelled_lazy_store'; import {BalanceAndProxyAllowanceLazyStore} from '../stores/balance_proxy_allowance_lazy_store'; - -const DEFAULT_NUM_CONFIRMATIONS = 0; +import {ExpirationWatcher} from './expiration_watcher'; interface DependentOrderHashes { [makerAddress: string]: { @@ -52,10 +53,11 @@ interface OrderByOrderHash { export class OrderStateWatcher { private _orderByOrderHash: OrderByOrderHash = {}; private _dependentOrderHashes: DependentOrderHashes = {}; - private _callbackIfExistsAsync?: OnOrderStateChangeCallback; + private _callbackIfExists?: OnOrderStateChangeCallback; private _eventWatcher: EventWatcher; private _web3Wrapper: Web3Wrapper; private _abiDecoder: AbiDecoder; + private _expirationWatcher: ExpirationWatcher; private _orderStateUtils: OrderStateUtils; private _orderFilledCancelledLazyStore: OrderFilledCancelledLazyStore; private _balanceAndProxyAllowanceLazyStore: BalanceAndProxyAllowanceLazyStore; @@ -65,38 +67,53 @@ export class OrderStateWatcher { ) { this._abiDecoder = abiDecoder; this._web3Wrapper = web3Wrapper; - const eventPollingIntervalMs = _.isUndefined(config) ? undefined : config.eventPollingIntervalMs; - this._eventWatcher = new EventWatcher(web3Wrapper, eventPollingIntervalMs); + const pollingIntervalIfExistsMs = _.isUndefined(config) ? undefined : config.eventPollingIntervalMs; + this._eventWatcher = new EventWatcher(web3Wrapper, pollingIntervalIfExistsMs); this._balanceAndProxyAllowanceLazyStore = new BalanceAndProxyAllowanceLazyStore(token); this._orderFilledCancelledLazyStore = new OrderFilledCancelledLazyStore(exchange); this._orderStateUtils = new OrderStateUtils( this._balanceAndProxyAllowanceLazyStore, this._orderFilledCancelledLazyStore, ); + const orderExpirationCheckingIntervalMsIfExists = _.isUndefined(config) ? + undefined : + config.orderExpirationCheckingIntervalMs; + const expirationMarginIfExistsMs = _.isUndefined(config) ? + undefined : + config.expirationMarginMs; + this._expirationWatcher = new ExpirationWatcher( + expirationMarginIfExistsMs, orderExpirationCheckingIntervalMsIfExists, + ); } /** * Add an order to the orderStateWatcher. Before the order is added, it's * signature is verified. * @param signedOrder The order you wish to start watching. */ - public addOrder(signedOrder: SignedOrder): void { + public async addOrderAsync(signedOrder: SignedOrder): Promise<void> { assert.doesConformToSchema('signedOrder', signedOrder, schemas.signedOrderSchema); const orderHash = ZeroEx.getOrderHashHex(signedOrder); assert.isValidSignature(orderHash, signedOrder.ecSignature, signedOrder.maker); this._orderByOrderHash[orderHash] = signedOrder; - this.addToDependentOrderHashes(signedOrder, orderHash); + await this.addToDependentOrderHashesAsync(signedOrder, orderHash); + const expirationUnixTimestampMs = signedOrder.expirationUnixTimestampSec.times(1000); + this._expirationWatcher.addOrder(orderHash, expirationUnixTimestampMs); } /** * Removes an order from the orderStateWatcher * @param orderHash The orderHash of the order you wish to stop watching. */ - public removeOrder(orderHash: string): void { + public async removeOrderAsync(orderHash: string): Promise<void> { assert.doesConformToSchema('orderHash', orderHash, schemas.orderHashSchema); const signedOrder = this._orderByOrderHash[orderHash]; if (_.isUndefined(signedOrder)) { return; // noop } delete this._orderByOrderHash[orderHash]; + const exchange = (this._orderFilledCancelledLazyStore as any).exchange as ExchangeWrapper; + const zrxTokenAddress = await exchange.getZRXTokenAddressAsync(); + this.removeFromDependentOrderHashes(signedOrder.maker, zrxTokenAddress, orderHash); this.removeFromDependentOrderHashes(signedOrder.maker, signedOrder.makerTokenAddress, orderHash); + this._expirationWatcher.removeOrder(orderHash); } /** * Starts an orderStateWatcher subscription. The callback will be called every time a watched order's @@ -106,23 +123,38 @@ export class OrderStateWatcher { */ public subscribe(callback: OnOrderStateChangeCallback): void { assert.isFunction('callback', callback); - if (!_.isUndefined(this._callbackIfExistsAsync)) { + if (!_.isUndefined(this._callbackIfExists)) { throw new Error(ZeroExError.SubscriptionAlreadyPresent); } - this._callbackIfExistsAsync = callback; + this._callbackIfExists = callback; this._eventWatcher.subscribe(this._onEventWatcherCallbackAsync.bind(this)); + this._expirationWatcher.subscribe(this._onOrderExpiredAsync.bind(this)); } /** * Ends an orderStateWatcher subscription. */ public unsubscribe(): void { - if (_.isUndefined(this._callbackIfExistsAsync)) { + if (_.isUndefined(this._callbackIfExists)) { throw new Error(ZeroExError.SubscriptionNotFound); } this._balanceAndProxyAllowanceLazyStore.deleteAll(); this._orderFilledCancelledLazyStore.deleteAll(); - delete this._callbackIfExistsAsync; + delete this._callbackIfExists; this._eventWatcher.unsubscribe(); + this._expirationWatcher.unsubscribe(); + } + private async _onOrderExpiredAsync(orderHash: string): Promise<void> { + const orderState: OrderState = { + isValid: false, + orderHash, + error: ExchangeContractErrs.OrderFillExpired, + }; + if (!_.isUndefined(this._orderByOrderHash[orderHash])) { + await this.removeOrderAsync(orderHash); + if (!_.isUndefined(this._callbackIfExists)) { + this._callbackIfExists(orderState); + } + } } private async _onEventWatcherCallbackAsync(log: LogEvent): Promise<void> { const maybeDecodedLog = this._abiDecoder.tryToDecodeLogOrNoop(log); @@ -204,13 +236,13 @@ export class OrderStateWatcher { // Most of these calls will never reach the network because the data is fetched from stores // and only updated when cache is invalidated const orderState = await this._orderStateUtils.getOrderStateAsync(signedOrder); - if (_.isUndefined(this._callbackIfExistsAsync)) { + if (_.isUndefined(this._callbackIfExists)) { break; // Unsubscribe was called } - await this._callbackIfExistsAsync(orderState); + this._callbackIfExists(orderState); } } - private addToDependentOrderHashes(signedOrder: SignedOrder, orderHash: string) { + private async addToDependentOrderHashesAsync(signedOrder: SignedOrder, orderHash: string): Promise<void> { if (_.isUndefined(this._dependentOrderHashes[signedOrder.maker])) { this._dependentOrderHashes[signedOrder.maker] = {}; } @@ -218,11 +250,17 @@ export class OrderStateWatcher { this._dependentOrderHashes[signedOrder.maker][signedOrder.makerTokenAddress] = new Set(); } this._dependentOrderHashes[signedOrder.maker][signedOrder.makerTokenAddress].add(orderHash); + const exchange = (this._orderFilledCancelledLazyStore as any).exchange as ExchangeWrapper; + const zrxTokenAddress = await exchange.getZRXTokenAddressAsync(); + if (_.isUndefined(this._dependentOrderHashes[signedOrder.maker][zrxTokenAddress])) { + this._dependentOrderHashes[signedOrder.maker][zrxTokenAddress] = new Set(); + } + this._dependentOrderHashes[signedOrder.maker][zrxTokenAddress].add(orderHash); } - private removeFromDependentOrderHashes(makerAddress: string, makerTokenAddress: string, orderHash: string) { - this._dependentOrderHashes[makerAddress][makerTokenAddress].delete(orderHash); - if (this._dependentOrderHashes[makerAddress][makerTokenAddress].size === 0) { - delete this._dependentOrderHashes[makerAddress][makerTokenAddress]; + private removeFromDependentOrderHashes(makerAddress: string, tokenAddress: string, orderHash: string) { + this._dependentOrderHashes[makerAddress][tokenAddress].delete(orderHash); + if (this._dependentOrderHashes[makerAddress][tokenAddress].size === 0) { + delete this._dependentOrderHashes[makerAddress][tokenAddress]; } if (_.isEmpty(this._dependentOrderHashes[makerAddress])) { delete this._dependentOrderHashes[makerAddress]; |