Retry Helpers

RetryHelper.cs

using System;
using System.Threading;

namespace Helpers
{
    /// <summary>
    /// Retry helpers.
    /// </summary>
    public static class RetryHelper
    {
        /// <summary>
        /// Retries up to the given <see cref="maxRetryCount"/> before throwing an exception.
        /// </summary>
        /// <param name="action">Action to perform.</param>
        /// <param name="maxRetryCount">Max retry count before throwing an exception. Default is 3.</param>
        /// <returns>Returns the number of retry attempts. Returns 0 if no retries were attempted.</returns>
        public static int Retry(Action action, int maxRetryCount = 3)
        {
            var retryCount = 0;

            try
            {
                action();
            }
            catch (Exception)
            {
                retryCount++;
                if (retryCount >= maxRetryCount)
                {
                    throw;
                }
            }

            return retryCount;
        }

        /// <summary>
        /// Retries up to the given <see cref="retryDuration"/> before throwing an exception.
        /// </summary>
        /// <param name="action">Action to perform.</param>
        /// <param name="retryDuration">Retry duration before throwing an exception.</param>
        /// <returns>Returns the number of retry attempts. Returns 0 if no retries were attempted.</returns>
        public static int Retry(Action action, TimeSpan retryDuration)
        {
            var retryCount = 0;
            var cts = new CancellationTokenSource(retryDuration);
            
            try
            {
                action();
            }
            catch (Exception)
            {
                retryCount++;
                if (cts.IsCancellationRequested)
                {
                    throw;
                }
            }

            return retryCount;
        }
    }
}