使用ioredis

Question

我将ioredis客户端（@ 4.6.2）与node.js结合使用，我需要进行很多位操作（彼此之间不依赖）。像这样：

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 pipeline 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();

但是我找不到任何pipeline.bitop()或pipeline.send_command()函数。

是否可以通过原子操作发送这些BITOP命令？谢谢

Answer 1

我终于设法做到了，使用命令数组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();