org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/npm-registry-client/node_modules/retry/example/dns.js

   1 var dns = require('dns');
   2 var retry = require('../lib/retry');
   3
   4 function faultTolerantResolve(address, cb) {
   5   var opts = {
   6     retries: 2,
   7     factor: 2,
   8     minTimeout: 1 * 1000,
   9     maxTimeout: 2 * 1000,
  10     randomize: true
  11   };
  12   var operation = retry.operation(opts);
  13
  14   operation.attempt(function(currentAttempt) {
  15     dns.resolve(address, function(err, addresses) {
  16       if (operation.retry(err)) {
  17         return;
  18       }
  19
  20       cb(operation.mainError(), operation.errors(), addresses);
  21     });
  22   });
  23 }
  24
  25 faultTolerantResolve('nodejs.org', function(err, errors, addresses) {
  26   console.warn('err:');
  27   console.log(err);
  28
  29   console.warn('addresses:');
  30   console.log(addresses);
  31 });