Asynchronously wait for file to be accessible

WaitForFileToBeAccessibleAsync.cs

    private async Task<bool> WaitForFileToBeAccessible(string fileWaitingOn, int retryThreshold = 1000)
    {
        int numberOfRetries = 0;
        while (numberOfRetries < retryThreshold)
        {
            try
            {
                using var fs = new FileStream(fileWaitingOn, FileMode.Open, FileAccess.ReadWrite, FileShare.None, 100);
                numberOfRetries++;
                fs.ReadByte();
                return true;
            }
            catch (Exception ex)
            {
                await Task.Delay(5000);
            }
        }
        return false;
    }