Mapscript CSharp (C#) Memory Leak?

[Tamas Szekeres]

David,

I have been testing your project and found the similar problems with
your mapscript binaries, however found no problem using the CVS-HEAD
mapscript binaries. This issue may be dedicated to the following bug:

http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=1743

was also fixed in the current (4.8.4) release.

Best Regards,

Tamas Szekeres




2006/7/13, David Lowther <dlowther at coordinatesolutions.com>:
>
>
>
>
> Hello All,
>
>
>
> I've been toying with the mapscript_csharp.dll in VS2005 and cannot even
> begin to tell you how thrilled I am to have it. Thanks SO much.
>
>
>
> I've encountered what I think might be a memory leak.
>
>
>
> The exception text that I get is below and the entire source code of the
> application is available at:
> http://www.coordinatesolutions.com/download/mapservertestvb.zip
>
>
>
> I get the exception after choosing ID from the drop down and clicking the
> map 15 times (why 15, I have no idea). When running the code from VS2005 the
> exception occurs at different places.
>
>
>
> Any ideas?
>
>
>
> David Lowther
>
>
>
> Coordinate Solutions, Inc.
>
> 501 N.E. 15th Street
>
> Oklahoma City, OK 73104
>
> 405.246.9396 (Voice)
>
> 405.227.0781 (Fax)
>
> www.coordinatesolutions.com
>
>
>
>
> See the end of this message for details on invoking
>
> just-in-time (JIT) debugging instead of this dialog box.
>
>
>
> ************** Exception Text **************
>
> System.AccessViolationException: Attempted to read or write protected
> memory. This is often an indication that other memory is corrupt.
>
>    at mapscriptPINVOKE.new_pointObj(Double jarg1, Double jarg2, Double
> jarg3, Double jarg4)
>
>    at pointObj..ctor(Double x, Double y, Double z, Double m)
>
>    at MapserverTestVB.Form1.Pixel2Geo(pointObj pt) in
> D:\Develop\MapserverTestVB\MapserverTestVB\Form1.vb:line
> 188
>
>    at MapserverTestVB.Form1.ID(pointObj ClickPt) in
> D:\Develop\MapserverTestVB\MapserverTestVB\Form1.vb:line
> 109
>
>    at MapserverTestVB.Form1.PictureBox1_MouseUp(Object
> sender, MouseEventArgs e) in
> D:\Develop\MapserverTestVB\MapserverTestVB\Form1.vb:line 97
>
>    at System.Windows.Forms.Control.OnMouseUp(MouseEventArgs
> e)
>
>    at System.Windows.Forms.Control.WmMouseUp(Message& m,
> MouseButtons button, Int32 clicks)
>
>    at System.Windows.Forms.Control.WndProc(Message& m)
>
>    at
> System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message&
> m)
>
>    at
> System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message&
> m)
>
>    at System.Windows.Forms.NativeWindow.Callback(IntPtr
> hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
>
>
>
>
>
> ************** Loaded Assemblies **************
>
> mscorlib
>
>     Assembly Version: 2.0.0.0
>
>     Win32 Version: 2.0.50727.42 (RTM.050727-4200)
>
>     CodeBase:
> file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
>
> ----------------------------------------
>
> MapserverTestVB
>
>     Assembly Version: 1.0.0.0
>
>     Win32 Version: 1.0.0.0
>
>     CodeBase:
> file:///D:/Develop/MapserverTestVB/MapserverTestVB/bin/Debug/MapserverTestVB.exe
>
> ----------------------------------------
>
> Microsoft.VisualBasic
>
>     Assembly Version: 8.0.0.0
>
>     Win32 Version: 8.0.50727.42 (RTM.050727-4200)
>
>     CodeBase:
> file:///C:/WINDOWS/assembly/GAC_MSIL/Microsoft.VisualBasic/8.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll
>
> ----------------------------------------
>
> System
>
>     Assembly Version: 2.0.0.0
>
>     Win32 Version: 2.0.50727.42 (RTM.050727-4200)
>
>     CodeBase:
> file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
>
> ----------------------------------------
>
> System.Windows.Forms
>
>     Assembly Version: 2.0.0.0
>
>     Win32 Version: 2.0.50727.42 (RTM.050727-4200)
>
>     CodeBase:
> file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
>
> ----------------------------------------
>
> System.Drawing
>
>     Assembly Version: 2.0.0.0
>
>     Win32 Version: 2.0.50727.42 (RTM.050727-4200)
>
>     CodeBase:
> file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
>
> ----------------------------------------
>
> System.Configuration
>
>     Assembly Version: 2.0.0.0
>
>     Win32 Version: 2.0.50727.42 (RTM.050727-4200)
>
>     CodeBase:
> file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
>
> ----------------------------------------
>
> System.Xml
>
>     Assembly Version: 2.0.0.0
>
>     Win32 Version: 2.0.50727.42 (RTM.050727-4200)
>
>     CodeBase:
> file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
>
> ----------------------------------------
>
> System.Runtime.Remoting
>
>     Assembly Version: 2.0.0.0
>
>     Win32 Version: 2.0.50727.42 (RTM.050727-4200)
>
>     CodeBase:
> file:///C:/WINDOWS/assembly/GAC_MSIL/System.Runtime.Remoting/2.0.0.0__b77a5c561934e089/System.Runtime.Remoting.dll
>
> ----------------------------------------
>
> mapscript_csharp
>
>     Assembly Version: 0.0.0.0
>
>     Win32 Version: 0.0.0.0
>
>     CodeBase:
> file:///D:/Develop/MapserverTestVB/MapserverTestVB/bin/Debug/mapscript_csharp.DLL
>
> ----------------------------------------
>
>
>
> ************** JIT Debugging **************
>
> To enable just-in-time (JIT) debugging, the .config file for this
>
> application or computer (machine.config) must have the
>
> jitDebugging value set in the system.windows.forms section.
>
> The application must also be compiled with debugging
>
> enabled.
>
>
>
> For example:
>
>
>
> <configuration>
>
>     <system.windows.forms jitDebugging="true" />
>
> </configuration>
>
>
>
> When JIT debugging is enabled, any unhandled exception
>
> will be sent to the JIT debugger registered on the computer
>
> rather than be handled by this dialog box.
>
>
>
>
>
>
>
>
>
>