Feature request: asyncTake()

[sloonz]

Now that promises and await/async are standard in the node ecosystem, I could be nice to have an async function like this directly integrated in the library :

await sem.asyncTake();

// I'm currently doing it like this:
const asyncTake = sem => new Promise((resolve, reject) => sem.take(resolve));

[ianmuninio]

You can do this if you're using Bluebird:

Bluebird.fromCallback(cb => sem.take(cb as Take));

[rafaelmedeiros-crnt]

// wrap it up like this

const sem = require('semaphore')();
const lock = async () =>
  new Promise((resolve) => {
    sem.take(() => {
      resolve(() => {
        sem.leave();
      });
    });
  });

// then use it like this

(async () => {
  const unlock = await lock();
  await myProtectedCode('1');
  unlock();
})();