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Basic error proofing for UDP (port al;ready in use) and MySQL (connection/access issues).

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This commit is contained in:
Szymon Porwolik
2019-02-28 22:47:59 +01:00
committed by simpo
parent 64a550e8e8
commit 69f995bd6d
2 changed files with 40 additions and 15 deletions
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1
02_Windows_App/Perun_v1/02_Forms/form_Main.Designer.cs generated
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@@ -150,6 +150,7 @@
//
// con_txt_mysql_port
//
this.con_txt_mysql_port.Enabled = false;
this.con_txt_mysql_port.Location = new System.Drawing.Point(106, 45);
this.con_txt_mysql_port.Name = "con_txt_mysql_port";
this.con_txt_mysql_port.Size = new System.Drawing.Size(207, 20);

54
02_Windows_App/Perun_v1/02_Forms/form_Main.cs
View File

@@ -125,12 +125,27 @@ namespace Perun_v1
rdr.Close();
LogHistoryAdd(ref LogHistory, "MySQL updated, package type: " + type);
}
catch (Exception ex)
catch (ArgumentException a_ex)
{
Console.WriteLine(ex.ToString());
LogHistoryAdd(ref LogHistory, "ERROR MySQL: type " + type);
Console.WriteLine(a_ex.ToString());
LogHistoryAdd(ref LogHistory, "ERROR MySQL - package type " + type);
}
catch (MySqlException ex)
{
LogHistoryAdd(ref LogHistory, "ERROR MySQL - package type " + type);
switch (ex.Number)
{
case 1042: // Unable to connect to any of the specified MySQL hosts (Check Server,Port)
LogHistoryAdd(ref LogHistory, "ERROR MySQL - unable to connect");
break;
case 0: // Access denied (Check DB name,username,password)
LogHistoryAdd(ref LogHistory, "ERROR MySQL - access denied");
break;
default:
LogHistoryAdd(ref LogHistory, "ERROR MySQL - " + ex.Number);
break;
}
}
conn.Close();
Console.WriteLine("Sending data to MySQL - Done");
}
@@ -156,16 +171,17 @@ namespace Perun_v1
public void StartListen()
{
// Start listening to UDP
this.done = false;
listener = new UdpClient(listenPort);
IPEndPoint groupEP = new IPEndPoint(IPAddress.Loopback, listenPort);
string received_data;
byte[] receive_byte_array;
Console.WriteLine("UDP Listen start");
try
{
// Start listening to UDP
this.done = false;
listener = new UdpClient(listenPort);
IPEndPoint groupEP = new IPEndPoint(IPAddress.Loopback, listenPort);
string received_data;
byte[] receive_byte_array;
while (!done)
{
Console.WriteLine("UDP: Waiting for packet");
@@ -191,13 +207,15 @@ namespace Perun_v1
}
}
listener.Close();
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
LogHistoryAdd(ref LogHistory, "ERROR UDP - port may be in use");
}
Console.WriteLine("UDP listen stop");
listener.Close();
}
}
@@ -278,8 +296,14 @@ namespace Perun_v1
private void con_Button_Listen_OFF_Click(object sender, EventArgs e)
{
// Stop listening
UDPListener.listener.Close();
try
{
UDPListener.listener.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
// Update form controls
con_Button_Listen_ON.Enabled = true;
con_Button_Listen_OFF.Enabled = false;
@@ -287,7 +311,7 @@ namespace Perun_v1
con_txt_mysql_database.Enabled = true;
con_txt_mysql_username.Enabled = true;
con_txt_mysql_password.Enabled = true;
con_txt_mysql_port.Enabled = true;
//con_txt_mysql_port.Enabled = true;
con_txt_mysql_server.Enabled = true;
con_txt_3rd_lotatc.Enabled = true;
con_txt_3rd_srs.Enabled = true;