[MonoTouch] ConnectFailure error causes app to cease connecting externally

[Rolf Bjarne Kvinge]

Hi,

Yeah, my guess would be that you're missing a Close/Dispose somewhere
(but I couldn't find anything missing in the case you showed). I
wouldn't look at the web services first, it's more likely a problem
with the code where you're using sockets and/or http requests
yourself.

Rolf

On Mon, Oct 24, 2011 at 4:49 AM, bamagrad03 <daniel at ilogicweb.net> wrote:
> I've got an app that does a number of externally focused things: twitter via
> oAuth, connecting to my web server services, etc. And everything works
> great, but after about 3-4 minutes of heavy use, the app starts throwing:
>
> Error: ConnectFailure (System call failed)
>
> More specifically:
>
>  at System.Net.HttpWebRequest.EndGetRequestStream (IAsyncResult
> asyncResult) [0x00000] in <filename unknown>:0
>  at System.Net.HttpWebRequest.GetRequestStream () [0x00000] in <filename
> unknown>:0
>  at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke
> (System.String method_name, System.Object[] parameters) [0x00000] in
> <filename unknown>:0
>
> Now, I can trap for this. But the bigger issue is, once I get this error,
> the app NEVER recovers. It won't connect to my RSS feeds, Twitter oAuth, or
> any of my webservices. I continue to get the same connectfailure error until
> I restart the app.
>
> Could this be a case of me not disposing manually of some resource that I
> should be? Here's some code from my webservice data pull, but keep in mind,
> this is only one of many ways I connect.
>
> List<BBStandings> rank = new List<BBStandings>();
>                        try{
>                        var service = new ServiceName.Service();
>
>                        XmlDocument xmlDoc = new XmlDocument();
>                        xmlDoc.LoadXml(service.GetStandings());
>
>                        string s = xmlDoc.InnerXml;
>                        -- bunch of variables declared
>                        int iCount = 1;
>
>                        if (s != "<NewDataSet />")
>                        {
>                        System.Xml.XmlTextReader xml = new System.Xml.XmlTextReader(new
> System.IO.StringReader(s));
>                        int iXML = 0;
>
>                        while (xml.Read())
>                        {
>                                switch (xml.NodeType)
>                                {
>                                        case XmlNodeType.EndElement:
>                                                iCount = 1;
>                                                sElement = "";
>                                                sText = "";
>                                                break;
>                                        case XmlNodeType.Element:
>                                                sElement = xml.Name;
>                                                iCount = 2;
>                                                break;
>                                        case XmlNodeType.Text:
>                                                //sElement = xml.Name;
>                                                sText = xml.Value;
>                                                iCount = 3;
>                                                break;
>                                }
>                                if (iCount == 3)
>                                {
>                                        switch (sElement)
>                                        {
>                                        case "TeamID":
>                                                sTeamID = sText;
>                                                iCount = 1;
>                                                break;
>                                        case "TeamName":
>                                                sTeamName = sText;
>                                                iCount = 1;
>                                                break;
>                                        case "ConferenceRecord":
>                                                sConferenceRecord = sText;
>                                                iCount = 1;
>                                                break;
>                                        case "Record":
>                                                sRecord = sText;
>                                                BBStandings r = new BBStandings();
>
>                                                r.TeamID = Convert.ToInt32(sTeamID);
>                                                r.TeamName = sTeamName;
>
>                                                r.ConferenceRecord = sConferenceRecord;
>
>                                                r.Record = sRecord;
>
>                                                rank.Insert(iXML, r);
>
>                                                iXML += 1;
>                                                sTeamID = "";
>                                                sConferenceRecord = "";
>
>                                                sTeamName = "";
>                                                sRecord = "";
>                                                sText = "";
>                                                sElement = "";
>                                                break;
>                                        }
>                                }
>                        }
>                        }
>                        }
>                        catch (Exception ex)
>                        {
>                                string s=ex.Message;
>                        }
>                        return rank;
>
> I'm running MD 2.6.0.1
> MonoFramework 2.10.5
> MT 4.2.2
>
>
> --
> View this message in context: http://monotouch.2284126.n4.nabble.com/ConnectFailure-error-causes-app-to-cease-connecting-externally-tp3931899p3931899.html
> Sent from the MonoTouch mailing list archive at Nabble.com.
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