33 lines
753 B
TypeScript
33 lines
753 B
TypeScript
import * as fs from 'fs';
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import memPool from './mempool';
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class DiskCache {
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static FILE_NAME = './cache.json';
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constructor() {
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process.on('SIGINT', () => {
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this.saveData(JSON.stringify(memPool.getMempool()));
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console.log('Mempool data saved to disk cache');
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process.exit(2);
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});
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}
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loadMempoolCache() {
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const cacheData = this.loadData();
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if (cacheData) {
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console.log('Restoring mempool data from disk cache');
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memPool.setMempool(JSON.parse(cacheData));
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}
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}
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private saveData(dataBlob: string) {
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fs.writeFileSync(DiskCache.FILE_NAME, dataBlob, 'utf8');
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}
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private loadData(): string {
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return fs.readFileSync(DiskCache.FILE_NAME, 'utf8');
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}
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}
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export default new DiskCache();
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