コード例 #1
0
        private async Task <bool> RenewTokensAsync(CancellationToken cancellationToken)
        {
            if (await _lock.WaitAsync(Timeout, cancellationToken).ConfigureAwait(false))
            {
                try
                {
                    var response = await _tokenClient.RequestClientCredentialsAsync(_scope, cancellationToken : cancellationToken).ConfigureAwait(false);

                    if (!response.IsError)
                    {
                        _accessToken = response.AccessToken;

#pragma warning disable 4014
                        Task.Run(() =>
                        {
                            foreach (EventHandler <TokenRenewedEventArgs> del in TokenRenewed.GetInvocationList())
                            {
                                try
                                {
                                    del(this, new TokenRenewedEventArgs(response.AccessToken, response.ExpiresIn));
                                }
                                catch { }
                            }
                        }).ConfigureAwait(false);
#pragma warning restore 4014

                        return(true);
                    }
                }
                finally
                {
                    _lock.Release();
                }
            }

            return(false);
        }