已弃用

请访问 https://github.com/cargo-crates/mem_cache

CacherRs  

用法

• 同步缓存

use cacher_rs::{Cacher};

let mut i32_cacher = Cacher::<i32>::new();
// expires_in_secs: 0 ->  expires immediate
let v1 = i32_cacher.fetch("v1", 10, || 1);
assert_eq!(v1, &1);

let mut string_cacher = Cacher::<String>::new();
let v1 = string_cacher.fetch("v1", 10, || "1".to_string());
assert_eq!(v1, "1");

• 异步缓存

use cacher_rs::{AsyncCacher};

let mut i32_cacher = AsyncCacher::<i32>::new();
// expires_in_secs: 0 ->  expires immediate
let v1 = i32_cacher.fetch("v1", 10, || Box::pin(async {
  Ok(1)
})).await?;
assert_eq!(v1, &1);

let mut string_cacher = AsyncCacher::<String>::new();
let v1 = string_cacher.fetch("v1", 10, || Box::pin(async {
  Ok("1".to_string())
})).await?;
assert_eq!(v1, "1");

方法

• [async] fetch(key, value, closure) 如果未过期则返回缓存值，否则重新计算闭包值
• [async] force_fetch(key, value, closure) 强制重新计算闭包值
• [async] read(key) 如果缓存存在则返回键的缓存值
• write(key, value) 如果缓存存在，则覆盖缓存值和过期时间
• expire(key) 如果缓存存在，则使缓存值过期
• delete(key) 如果缓存存在，则删除缓存