아래 교착이 발생하는 코드입니다
코드 맥락상 교착이 발생할만한 부분이 없는 것 같은데 왜 교착이 발생하는 걸까요?
MainLoginForm.activeNumber 정적 필드를 제거하니 코드가 정상적으로 호출되긴 하는데
MainLoginForm.activeNumber 때문은 아닌 것 같아서요
안내해 주시면 정말 감사하겠습니다

MainForm.cs
private bool isRunningHeartbeat;

private void MainForm_Load(object sender, EventArgs e)
{
    Task.Run(() => HeartBeatSender.SendHeartbeat());
    this.isRunningHeartbeat = true;
}


HeartBeatSender.cs
class HeartBeatSender
{
    public static async void SendHeartbeat()
    {
        while (true)
        {
            try
            {
                Dictionary<string, string> body = Cipher.GetHeartbeatEncryptedData("kk", "KakaoMap", MainLoginForm.activeNumber);
                HttpContent content = new FormUrlEncodedContent(body);

                string result = await Client.PostAsync("https://ckmauth.com/new/heartbeat", content);
                WriteLine(Thread.CurrentThread.ManagedThreadId); // 호출 안 됨
            }
            catch (Exception ex)
            {
                // 예외로도 안 빠짐
                MessageBox.Show(ex.Message + "\n\n" + ex.StackTrace);
                await Task.Delay(5000);
            }
        }
    }
}


Cipher.cs
public static Dictionary<string, string> GetHeartbeatEncryptedData(string id, string programType, string activeNumber)
{
    using (Aes aes = Aes.Create())
    {
        aes.KeySize = 128;
        aes.IV = Encoding.UTF8.GetBytes("ckminitialvector");
        aes.Key = Encoding.UTF8.GetBytes("ckminitialkeyckm");

        return new Dictionary<string, string>()
        {
            { "i1", EncryptStringToBase64_Aes(id, aes.Key, aes.IV) },
            { "i2", EncryptStringToBase64_Aes(programType, aes.Key, aes.IV) },
            { "i3", EncryptStringToBase64_Aes(activeNumber, aes.Key, aes.IV) },
        };
    }
}


Client.cs
public static async Task<string> PostAsync(string url, HttpContent paylaod)
{
    try
    {
        using (HttpResponseMessage response = await client.PostAsync(url, paylaod)) // PostAsnyc 호출 후 교착 발생
        {
            WriteLine(Thread.CurrentThread.ManagedThreadId); // 여기부터 호출 안 됨
            string result = await response.Content.ReadAsStringAsync();
            return result;
        }
    }
    catch (Exception ex)
    {
        // 예외로도 안 빠짐
        MessageBox.Show(ex.Message + "\n\n" + ex.StackTrace);
    }

    return null;
}


MainLoginForm.cs
partial class MainLoginForm : Form
{
    public static string activeNumber = "2"
}

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• [다음 글] DependencyObject와 같은 스레드에서 DependencySource를 만들어야 합니다. 오류
• [이전 글] 템플릿 대체할수있는방법이 있을까요?

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