Rust-like Mutex for TypeScript
npm install @hazae41/mutexRust-like Mutex and Semaphore for TypeScript
``bash`
npm install @hazae41/mutex
`bash`
deno install jsr:@hazae41/mutex
`typescript
import { Mutex } from "@hazae41/mutex"
const mutex = new Mutex(123)
/**
* You can queue a callback
*/
async function runOrWait() {
await mutex.runOrWait((x) => / do (async) stuff with x /)
}
/**
* You can throw if the mutex is already locked
*/
async function runOrThrow() {
await mutex.runOrThrow((x) => / do stuff with x /)
}
/**
* You can return something from the callback
*/
async function runOrWait2() {
const y = await mutex.runOrWait((x) => x * 2)
}
/**
* You can use async code
*/
async function runOrWait3() {
const y = await mutex.runOrWait(async (x) => await f(x))
}
/**
* You can acquire and release when you want
*/
async function getOrWait() {
const x = await mutex.getOrWait()
const y = x.get() * 2
x.release()
}
/**
* You can acquire and release with using
*/
async function getOrWait2() {
using x = await mutex.getOrWait()
const y = x.get() * 2
}
Same functions as Mutex but you can specify a capacity
`tsx
const semaphore = new Semaphore(123, 3)
const a = await semaphore.getOrThrow()
const b = await semaphore.getOrThrow()
const c = await semaphore.getOrThrow()
const d = await semaphore.getOrThrow() // will throw
`
You can see it like Mutex