RomCheater/Serialization/SerializationReader.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace RomCheater.Serialization
{
    public abstract class SerializationReader : ISerializationResultCount, IDisposable
    {
         private static string CreateFilename(Guid guid)
        {
            if (guid == Guid.Empty)
            {
                return DEFAULT_PATH;
            }
            else
            {
                return string.Format(@"{0}\{1}", DEFAULT_FOLDER, string.Format("{0}.tmp", guid.ToString()));
            }
        }
        private const string DEFAULT_FOLDER = "tmp";
        private const string DEFAULT_FILENAME = "SerializedMemoryResults.tmp";
        private static string DEFAULT_PATH = string.Format(@"{0}\{1}", DEFAULT_FOLDER, DEFAULT_FILENAME);
        //public SerializationReader() : this(CreateFilename(Guid.Empty)) { CreateReader(Guid.Empty); }
        public SerializationReader(Guid guid) : this(CreateFilename(guid)) { CreateReader(guid); } 
        protected SerializationReader(string filename) { FileName = filename; }


        protected bool Cancelled { get; set; }

        public void CancelRequest() { Cancelled = true; }

        #region ISerializationResultCount members
        public int ResultCount { get; protected set; }
        #endregion
        private FileStream fileStream;
        protected BinaryReader binReader;
        protected string FileName { get; private set; }
        private void CreateReader(Guid guid)
        {
            if (Cancelled) { return; }
            fileStream = new FileStream(FileName, FileMode.Open, FileAccess.Read, FileShare.Read);
            binReader = new BinaryReader(fileStream);
        }
            #region IDisposable Support
        // Track whether Dispose has been called.
        private bool disposed = false;
        // Implement IDisposable.
        // Do not make this method virtual.
        // A derived class should not be able to override this method.
        public void Dispose()
        {
            Dispose(true);
            // This object will be cleaned up by the Dispose method.
            // Therefore, you should call GC.SupressFinalize to
            // take this object off the finalization queue
            // and prevent finalization code for this object
            // from executing a second time.
            GC.SuppressFinalize(this);
        }
        // Dispose(bool disposing) executes in two distinct scenarios.
        // If disposing equals true, the method has been called directly
        // or indirectly by a user's code. Managed and unmanaged resources
        // can be disposed.
        // If disposing equals false, the method has been called by the
        // runtime from inside the finalizer and you should not reference
        // other objects. Only unmanaged resources can be disposed.
        protected virtual void Dispose(bool disposing)
        {
            // Check to see if Dispose has already been called.
            if (!this.disposed)
            {
                // If disposing equals true, dispose all managed
                // and unmanaged resources.
                if (disposing)
                {
                    // Dispose managed resources.
                    //component.Dispose();
                }

                // Call the appropriate methods to clean up
                // unmanaged resources here.
                // If disposing is false,
                // only the following code is executed.
               
                // clean up any resources
                binReader.Close();
                binReader = null;
                fileStream = null;                
                // Note disposing has been done.
                disposed = true;

            }
        }
        // Use C# destructor syntax for finalization code.
        // This destructor will run only if the Dispose method
        // does not get called.
        // It gives your base class the opportunity to finalize.
        // Do not provide destructors in types derived from this class.
        ~SerializationReader()
        {
            // Do not re-create Dispose clean-up code here.
            // Calling Dispose(false) is optimal in terms of
            // readability and maintainability.
            Dispose(false);
        }
        #endregion
    }
}
Revision:	446
Committed:	Sun Jun 2 19:52:03 2013 UTC (10 years ago) by william
File size:	4480 byte(s)
Log Message:	+ fix search cancel/reset
#	User	Rev	Content
1	william	401	using System;
2			using System.Collections.Generic;
3			using System.Linq;
4			using System.Text;
5	william	402	using System.IO;
6	william	401
7			namespace RomCheater.Serialization
8			{
9	william	402	public abstract class SerializationReader : ISerializationResultCount, IDisposable
10	william	401	{
11	william	444	private static string CreateFilename(Guid guid)
12			{
13			if (guid == Guid.Empty)
14			{
15			return DEFAULT_PATH;
16			}
17			else
18			{
19			return string.Format(@"{0}\{1}", DEFAULT_FOLDER, string.Format("{0}.tmp", guid.ToString()));
20			}
21			}
22	william	402	private const string DEFAULT_FOLDER = "tmp";
23			private const string DEFAULT_FILENAME = "SerializedMemoryResults.tmp";
24			private static string DEFAULT_PATH = string.Format(@"{0}\{1}", DEFAULT_FOLDER, DEFAULT_FILENAME);
25	william	444	//public SerializationReader() : this(CreateFilename(Guid.Empty)) { CreateReader(Guid.Empty); }
26	william	445	public SerializationReader(Guid guid) : this(CreateFilename(guid)) { CreateReader(guid); }
27	william	444	protected SerializationReader(string filename) { FileName = filename; }
28	william	402
29
30	william	446	protected bool Cancelled { get; set; }
31
32			public void CancelRequest() { Cancelled = true; }
33
34	william	402	#region ISerializationResultCount members
35			public int ResultCount { get; protected set; }
36			#endregion
37			private FileStream fileStream;
38			protected BinaryReader binReader;
39			protected string FileName { get; private set; }
40	william	444	private void CreateReader(Guid guid)
41	william	402	{
42	william	446	if (Cancelled) { return; }
43	william	402	fileStream = new FileStream(FileName, FileMode.Open, FileAccess.Read, FileShare.Read);
44			binReader = new BinaryReader(fileStream);
45			}
46			#region IDisposable Support
47			// Track whether Dispose has been called.
48			private bool disposed = false;
49			// Implement IDisposable.
50			// Do not make this method virtual.
51			// A derived class should not be able to override this method.
52			public void Dispose()
53			{
54			Dispose(true);
55			// This object will be cleaned up by the Dispose method.
56			// Therefore, you should call GC.SupressFinalize to
57			// take this object off the finalization queue
58			// and prevent finalization code for this object
59			// from executing a second time.
60			GC.SuppressFinalize(this);
61			}
62			// Dispose(bool disposing) executes in two distinct scenarios.
63			// If disposing equals true, the method has been called directly
64			// or indirectly by a user's code. Managed and unmanaged resources
65			// can be disposed.
66			// If disposing equals false, the method has been called by the
67			// runtime from inside the finalizer and you should not reference
68			// other objects. Only unmanaged resources can be disposed.
69			protected virtual void Dispose(bool disposing)
70			{
71			// Check to see if Dispose has already been called.
72			if (!this.disposed)
73			{
74			// If disposing equals true, dispose all managed
75			// and unmanaged resources.
76			if (disposing)
77			{
78			// Dispose managed resources.
79			//component.Dispose();
80			}
81
82			// Call the appropriate methods to clean up
83			// unmanaged resources here.
84			// If disposing is false,
85			// only the following code is executed.
86
87			// clean up any resources
88			binReader.Close();
89			binReader = null;
90			fileStream = null;
91			// Note disposing has been done.
92			disposed = true;
93
94			}
95			}
96			// Use C# destructor syntax for finalization code.
97			// This destructor will run only if the Dispose method
98			// does not get called.
99			// It gives your base class the opportunity to finalize.
100			// Do not provide destructors in types derived from this class.
101			~SerializationReader()
102			{
103			// Do not re-create Dispose clean-up code here.
104			// Calling Dispose(false) is optimal in terms of
105			// readability and maintainability.
106			Dispose(false);
107			}
108			#endregion
109	william	401	}
110			}