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rOACCT/node_modules/retry/example/stop.js
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stop.js
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			var retry = require('../lib/retry');

			function attemptAsyncOperation(someInput, cb) {
			var opts = {
			retries: 2,
			factor: 2,
			minTimeout: 1 * 1000,
			maxTimeout: 2 * 1000,
			randomize: true
			};
			var operation = retry.operation(opts);

			operation.attempt(function(currentAttempt) {
			failingAsyncOperation(someInput, function(err, result) {

			if (err && err.message === 'A fatal error') {
			operation.stop();
			return cb(err);
			}

			if (operation.retry(err)) {
			return;
			}

			cb(operation.mainError(), operation.errors(), result);
			});
			});
			}

			attemptAsyncOperation('test input', function(err, errors, result) {
			console.warn('err:');
			console.log(err);

			console.warn('result:');
			console.log(result);
			});

			function failingAsyncOperation(input, cb) {
			return setImmediate(cb.bind(null, new Error('A fatal error')));
			}