37 lines
703 B
TypeScript
37 lines
703 B
TypeScript
/**
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* Pricecaster Service.
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*
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* Fetcher backend component.
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*
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* (c) 2021 Randlabs, Inc.
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*/
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import { PriceData } from '@pythnetwork/client'
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import { StrategyBase } from './strategyBase'
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/**
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* A base class for queue-based buffer strategies
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*/
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export abstract class StrategyBaseQueue extends StrategyBase {
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private buffer: PriceData[]
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private bufSize: number
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createBuffer (maxSize: number): void {
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this.bufSize = maxSize
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}
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clearBuffer (): void {
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this.buffer.length = 0
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}
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put (priceData: PriceData): boolean {
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if (this.buffer.length === this.bufSize) {
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this.buffer.shift()
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}
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this.buffer.push(priceData)
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return true
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}
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abstract getPrice(): number
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}
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