node.js - 使用 ioredis 在单个原子操作中发送多个 BITOP

Question

我正在使用带有 node.js 的 ioredis 客户端（@4.6.2），我需要做很多位操作（它们不依赖于彼此）。像这样的东西：

import * as ioredis from "ioredis";

...

private readonly client: ioredis.Redis;
this.client = new ioredis("my_url");

...

await this.client.send_command("BITOP", "OR", "a_or_b", "a", "b");
await this.client.send_command("BITOP", "OR", "a_or_c", "a", "c");
await this.client.send_command("BITOP", "OR", "a_or_d", "a", "d");
await this.client.send_command("BITOP", "OR", "a_or_e", "a", "e");
// etc...

通过其他一些操作（例如setbit），我可以使用管道对象及其exec()函数以原子方式运行它们：

const pipeline: Pipeline = this.client.pipeline();
pipeline.setbit(a, 1, 1);
pipeline.setbit(a, 12, 0);
pipeline.setbit(b, 3,  1);
await pipeline.exec();

但我找不到任何pipeline.bitop()功能pipeline.send_command()。

有没有办法BITOP在原子操作中发送这些命令？谢谢

Answer 1

我终于设法做到了，使用一组命令作为构造函数的参数（如 ioredis 文档中所述），而且速度更快！

const result: number[][] = await this.redis.pipeline([
      ["bitop", "OR", "a_or_b", "a", "b"],
      ["bitop", "OR", "a_or_c", "a", "c"],
      ["bitop", "OR", "a_or_d", "a", "d"],
      ...

      ["bitcount", "a_or_b"],
      ["bitcount", "a_or_c"],
      ["bitcount", "a_or_d"],
      ...
]).exec();