mirall-cli / node_modules / hyperswarm / lib / connection-set.js

const b4a = require('b4a')

module.exports = class ConnectionSet {
  constructor() {
    this._byPublicKey = new Map()
  }

  [Symbol.iterator]() {
    return this._byPublicKey.values()
  }

  get size() {
    return this._byPublicKey.size
  }

  has(publicKey) {
    return this._byPublicKey.has(toHex(publicKey))
  }

  get(publicKey) {
    return this._byPublicKey.get(toHex(publicKey))
  }

  add(connection) {
    this._byPublicKey.set(b4a.toString(connection.remotePublicKey, 'hex'), connection)
  }

  delete(connection) {
    const keyString = b4a.toString(connection.remotePublicKey, 'hex')
    const existing = this._byPublicKey.get(keyString)
    if (existing !== connection) return
    this._byPublicKey.delete(keyString)
  }
}

function toHex(b) {
  return typeof b === 'string' ? b : b4a.toString(b, 'hex')
}