/[xmltv_parser]/trunk/libxmltv/Core/XMLTVInstance.cs
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Diff of /trunk/libxmltv/Core/XMLTVInstance.cs

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revision 46 by william, Fri Mar 8 04:01:25 2013 UTC revision 54 by william, Fri Mar 8 08:51:10 2013 UTC
# Line 4  using System.Linq; Line 4  using System.Linq;
4  using System.Text;  using System.Text;
5  using libxmltv.Interfaces;  using libxmltv.Interfaces;
6  using System.ComponentModel;  using System.ComponentModel;
7    using System.Windows.Forms;
8    using System.Threading;
9    
10  namespace libxmltv.Core  namespace libxmltv.Core
11  {  {
12      internal class XMLTVRuntimeInstance : MarshalByRefObject, IXMLTVRuntimeInstance      [Serializable]
13        internal class XMLTVRuntimeInstance : MarshalByRefObject, IXMLTVRuntimeInstance, ISerializer<XMLTVRuntimeInstance>, IGetCreatedInstanceEvent, ISetCreatedInstanceEvent, IDestroyInstance
14      {      {
15          public XMLTVRuntimeInstance(string xmlfile) : this(xmlfile, null) { }          Thread worker;
16          public XMLTVRuntimeInstance(string xmlfile, EventHandler<CancelEventArgs> t) { CreateInstance(xmlfile,t); }          public XMLTVRuntimeInstance(string xmlfile)
         private void CreateInstance(string xmlfile, EventHandler<CancelEventArgs> t)  
17          {          {
18              CancelEvent = t;              worker = new Thread(new ParameterizedThreadStart(CreateInstance));
19              using (Instance = new XMLTVInstance(xmlfile, this))              //CreateInstance(xmlfile);
20                worker.Start(xmlfile);
21            }
22            //public XMLTVRuntimeInstance(string xmlfile) : this(xmlfile, null) { }
23            //public XMLTVRuntimeInstance(string xmlfile, EventHandler<CancelEventArgs> t) { CreateInstance(xmlfile,t); }
24            private void CreateInstance(object xmlfile)
25            {            
26                //CancelEvent = t;
27                using (XMLTVInstance instance = new XMLTVInstance(xmlfile.ToString(), this))
28              {              {
29                    if (OnInstanceCreated != null)
30                    {
31                        OnInstanceCreated.Invoke(this,new EventArgs());
32                    }
33              }              }
34          }          }
35    
36          internal XMLTVInstance Instance { get; private set; }          //internal XMLTVInstance Instance { get; private set; }
37    
38          #region IXMLTV_LOADER members          #region IXMLTV_LOADER members
39          public System.IO.FileInfo XmlFile { get; set; }          public System.IO.FileInfo XmlFile { get; set; }
40          public System.Xml.Linq.XDocument XmlDoc { get; set; }          public string XmlDoc { get; set; }
41          #endregion          #endregion
42          #region IXMLTV_PARSER Members          #region IXMLTV_PARSER Members
43          public IXMLTVSource Source { get; set; }          public IXMLTVSource Source { get; set; }
# Line 31  namespace libxmltv.Core Line 45  namespace libxmltv.Core
45          public Dictionary<int, IXMLTVProgram> Programs { get; set; }          public Dictionary<int, IXMLTVProgram> Programs { get; set; }
46          #endregion            #endregion  
47            
48          //public void Dispose()          public EventHandler<EventArgs> OnInstanceCreated { get; set; }
49          //{          public EventHandler<EventArgs> GetOnInstanceCreated() { return OnInstanceCreated; }
50          //    IsDisposing = true;          public void SetOnInstanceCreated(EventHandler<EventArgs> event_instance) { OnInstanceCreated = event_instance; }
         //    //throw new NotImplementedException();  
         //}  
         //public bool IsDisposing { get; private set; }  
   
   
         private event EventHandler<CancelEventArgs> CancelEvent = null;  
51    
52          public bool IsAborting          public IXMLTVSerializer<XMLTVRuntimeInstance> Serializer
53            {
54                get
55                {
56                    ///* We have to set CancelEvent to null, before returning a new instance of the serializer otherwise all subscribers to the event will have to be marked as serializeable.
57                    //   Most subscribers will be of type: System.Windows.Forms which is not marked as serializable and will fail to serialize. */
58                    //if (CancelEvent != null) { CancelEvent = null; }
59                    return new XMLTVSerializer<XMLTVRuntimeInstance>(this);
60                }
61            }
62            public void DestroyInstance()
63          {          {
64              get              xmltv_logger.Log.Debug.WriteLine("Destoying Instance of: '{0}'", this.GetType().Name);
65                this.IsAborting = true;
66                if (worker == null)
67                {
68                    xmltv_logger.Log.Debug.WriteLine("Unable to destroy instance of: '{0}' - worker thread is null", this.GetType().Name);
69                    return;
70                }
71                else
72              {              {
73                  if (CancelEvent != null)                  if (worker.IsAlive)
74                  {                  {
75                      CancelEventArgs e = new CancelEventArgs();                      xmltv_logger.Log.Verbose.Debug.WriteLine("Requesting Instance to Abort...");
76                      CancelEvent.Invoke(this, e);                      while (worker.IsAlive)
                     if (e.Cancel)  
77                      {                      {
78                          xmltv_logger.Log.Verbose.Debug.WriteLine("Detected Instance abort event...");                          worker.Abort();
79                            Application.DoEvents();
80                      }                      }
                     return e.Cancel;  
81                  }                  }
82                  return false;                  else
83                    {
84                        xmltv_logger.Log.Debug.WriteLine("Instance of: '{0}'- already destroyed.", this.GetType().Name);
85                    }
86              }              }
87          }          }
88            public bool IsAborting
89            {
90                get;
91                private set;
92            }        
93      }      }
94    
95      internal class XMLTVInstance : IDisposable      internal class XMLTVInstance : IDisposable
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