Weighted Round Robin Resource pool
npm install wrr-pool
WRRPool is a Weighted Round Robin resource pool
``
npm install wrr-pool
#### Basic usage
`javascript
var WRRPool = require('wrr-pool');
var pool = new WRRPool();
pool.add('A', 4); // pool.add({ host: '10.0.1.10', port: 8087}, 4)
pool.add('B', 3); // pool.add({ host: '10.0.1.11', port: 8087}, 3)
pool.add('C', 2); // pool.add({ host: '10.0.1.12', port: 8087}, 2)
pool.next(); // A
pool.next(); // A
pool.next(); // B
pool.next(); // A
pool.next(); // B
pool.next(); // C
pool.next(); // A
pool.next(); // B
pool.next(); // C
`
#### Get resource and its weight
`javascript
var pool = new WRRPool();
pool.add({ id: 1 }, 4);
pool.add({ id: 2 }, 3);
pool.add({ id: 3 }, 2);
pool.get({ id: 2 }); // => { value: { id: 2 }, weight: 3 }
`
`javascript
var pool = new WRRPool();
pool.add({ id: 1 }, 4);
pool.add({ id: 2 }, 3);
pool.add({ id: 3 }, 2);
pool.get(function (v){ return v.id === 2; }); // => { value: { id: 2 }, weight: 3 }
`
#### Update resource value and/or weight
`javascript
var pool = new WRRPool();
pool.add('A', 4);
pool.add('B', 3);
pool.add('C', 2);
// update value to 'B1' and weight to 4
pool.update(function (v) { return v === 'B';}, 'B1', 4); // => returns index of updated element or undefined if not found
`
#### Remove resource from pool
`javascript
var pool = new WRRPool();
pool.add('A', 4);
pool.add('B', 3);
pool.add('C', 2);
pool.remove(function (v) { return v === 'C';}); // => returns index of removed element or undefined if not found
``