mirror of https://github.com/jkjoy/sunpeiwen.git
31 lines
687 B
JavaScript
31 lines
687 B
JavaScript
|
var dns = require('dns');
|
||
|
var retry = require('../lib/retry');
|
||
|
|
||
|
function faultTolerantResolve(address, cb) {
|
||
|
var opts = {
|
||
|
retries: 2,
|
||
|
factor: 2,
|
||
|
minTimeout: 1 * 1000,
|
||
|
maxTimeout: 2 * 1000,
|
||
|
randomize: true
|
||
|
};
|
||
|
var operation = retry.operation(opts);
|
||
|
|
||
|
operation.attempt(function(currentAttempt) {
|
||
|
dns.resolve(address, function(err, addresses) {
|
||
|
if (operation.retry(err)) {
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
cb(operation.mainError(), operation.errors(), addresses);
|
||
|
});
|
||
|
});
|
||
|
}
|
||
|
|
||
|
faultTolerantResolve('nodejs.org', function(err, errors, addresses) {
|
||
|
console.warn('err:');
|
||
|
console.log(err);
|
||
|
|
||
|
console.warn('addresses:');
|
||
|
console.log(addresses);
|
||
|
});
|