[MonoDevelop] Newbie question: Making a reference to a linux shared library
Petit Eric
surfzoid at gmail.com
Mon Oct 6 10:00:13 EDT 2008
2008/10/6 alanb <alan.battersby at ntlworld.com>:
>
> The C# wrapper code is
>
> namespace emcConnect
> {
> public class EmcConnection
> {
>
> [DllImport ("libtest")]
> public static extern int tryNML();
> ....
>
> I dont have the other stuff such as charset etc is that important? This
> class is placed in its own subproject will that make a difference?
hum it is strange, perhap's yu need a link "test.so" to your "test.1.0.so" ?
>
> Alan
>
>
>
> Petit Eric wrote:
>>
>> 2008/10/6 alanb <alan.battersby at ntlworld.com>:
>>>
>>> I am still not able to load the shared library. I have copied the shared
>>> library into the /bin/Debug directory of my main C# app and set the
>>> LD_LIBRARY_PATH to be an absolute address. See below I have tried all
>>> combinations of dll name in the DllImport statement including the full
>>> name
>>> and not just the link.
>>> <code>
>>> mono abtools.exe
>>> Exception in Gtk# callback delegate
>>> Note: Applications can use GLib.ExceptionManager.UnhandledException to
>>> handle the exception.
>>> System.DllNotFoundException: libtest.so.1.0
>>> at (wrapper managed-to-native) emcConnect.EmcConnection:tryNml ()
>>> at MainWindow.OnAddActionActivated (System.Object sender,
>>> System.EventArgs
>>> e) [0x00000]
>>> at GLib.Signal.voidObjectCallback (IntPtr handle, IntPtr data) [0x00000]
>>> at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e,
>>> Boolean is_terminal)
>>> at GLib.Signal.voidObjectCallback(IntPtr handle, IntPtr data)
>>> at GLib.Signal.voidObjectCallback(IntPtr , IntPtr )
>>> at Gtk.Application.gtk_main()
>>> at Gtk.Application.gtk_main()
>>> at Gtk.Application.Run()
>>> at abtools.MainClass.Main(System.String[] args)
>>> alan at alan-laptop:/media/Data/CNC/abtools v1.5/abtools/bin/Debug$ echo
>>> $LD_LIBRARY_PATHLD_LIBRARY_PATH$:/media/Data/CNC/abtools
>>> v1.5/abtools/bin/Debug/
>>> alan at alan-laptop:/media/Data/CNC/abtools v1.5/abtools/bin/Debug$ ls
>>> abtools.exe abwidgetlibrary.dll.mdb GenTemplates.dll
>>> libtest.so.1.0
>>> abtools.exe.config basic.dll GenTemplates.dll.mdb
>>> OpenTK.dll
>>> abtools.exe.config~ basic.dll.mdb GLWidget.dll
>>> OpenTK.dll.config
>>> abtools.exe.mdb emcConnect.dll libtest.so
>>> abwidgetlibrary.dll emcConnect.dll.mdb libtest.so.1
>>> </code>
>>> but I am still getting a not found exception. I am obviously missing
>>> something simple but cannot see what is wrong. Any more suggestions would
>>> be
>>> more than welcome.
>> can yu paste the C# code line where yu call the DLL, also have a look
>> at mine class, it can help you, perhap's :
>> http://cs-obexftp.svn.sourceforge.net/viewvc/cs-obexftp/trunk/Cs-ObexFtp/CObexFtpLib/Internal/NativeCode.cs?revision=163&view=markup&pathrev=200
>>>
>>> Alan
>>>
>>> Petit Eric wrote:
>>>>
>>>> 2008/10/6 alanb <alan.battersby at ntlworld.com>:
>>>>>
>>>>> I tried P/Invoke, I created a shared library, wrapped it in C# class
>>>>> and
>>>>> it
>>>>> all compiles ok. But when I try to execute one of the external
>>>>> functions
>>>>> I
>>>>> get an exception - System.DllNotFoundException: libtest.so . As this
>>>>> is
>>>>> an
>>>>> experiment I do not want to place my library in /usr , /lib etc so I
>>>>> tried
>>>>> setting LD_LIBRARY_PATH in a shell but that doesnt seem to work for me.
>>>>> I
>>>>> am
>>>>> assuming that I need to set LD_LIBRARY_PATH in the shell created by
>>>>> monodevelops run command, so can someone tell me how to do this?
>>>> normaly yu can replace your dll call : libtest.so by libtest i folow
>>>> this way fro lib ported to Win 32 ex : libtest.so and libtest.dll
>>>> after , compile your prog with MD
>>>> open a shell (konsole for ex) and browse to the bin/Debug or Release
>>>> dir (depand how yu compile)
>>>> then : export LD_LIBRARY_PATH=LD_LIBRARY_PATH$:what yu need && mono
>>>> ./your.exe
>>>> also i think, yu can call your test lib with an absolute path or
>>>> relative to your compil directory
>>>>>
>>>>> Thanks
>>>>> Alan
>>>>>
>>>>>
>>>>> Petit Eric wrote:
>>>>>>
>>>>>> P/Invoke
>>>>>>
>>>>>>
>>>>>> 2008/10/6 alanb <alan.battersby at ntlworld.com>:
>>>>>>>
>>>>>>> I tried adding a shared library as a reference to my C# project but
>>>>>>> it
>>>>>>> wasn't
>>>>>>> recognized. So is there a way to do this? If it is not possible
>>>>>>> directly
>>>>>>> how do you wrap a .so file as a .dll that would be recognized?
>>>>>>> --
>>>>>>> View this message in context:
>>>>>>> http://www.nabble.com/Newbie-question%3A-Making-a-reference-to-a-linux-shared-library-tp19835738p19835738.html
>>>>>>> Sent from the Mono - MonoDevelop IDE mailing list archive at
>>>>>>> Nabble.com.
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Monodevelop-list mailing list
>>>>>>> Monodevelop-list at lists.ximian.com
>>>>>>> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>>
>>>>>> Cordially.
>>>>>>
>>>>>> Small Eric Quotations of the days:
>>>>>> ---------------------------------------------------------------------------
>>>>>> If one day one reproaches you that your work is not a work of
>>>>>> professional, say you that:
>>>>>> Amateurs built the arch of Noah, and professionals the Titanic.
>>>>>> ---------------------------------------------------------------------------
>>>>>>
>>>>>> Few people are done for independence, it is the privilege of the
>>>>>> powerful
>>>>>> ones.
>>>>>> ---------------------------------------------------------------------------
>>>>>>
>>>>>> No key was wounded during the drafting of this message.
>>>>>> _______________________________________________
>>>>>> Monodevelop-list mailing list
>>>>>> Monodevelop-list at lists.ximian.com
>>>>>> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>> View this message in context:
>>>>> http://www.nabble.com/Newbie-question%3A-Making-a-reference-to-a-linux-shared-library-tp19835738p19836211.html
>>>>> Sent from the Mono - MonoDevelop IDE mailing list archive at
>>>>> Nabble.com.
>>>>>
>>>>> _______________________________________________
>>>>> Monodevelop-list mailing list
>>>>> Monodevelop-list at lists.ximian.com
>>>>> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> Cordially.
>>>>
>>>> Small Eric Quotations of the days:
>>>> ---------------------------------------------------------------------------
>>>> If one day one reproaches you that your work is not a work of
>>>> professional, say you that:
>>>> Amateurs built the arch of Noah, and professionals the Titanic.
>>>> ---------------------------------------------------------------------------
>>>>
>>>> Few people are done for independence, it is the privilege of the
>>>> powerful
>>>> ones.
>>>> ---------------------------------------------------------------------------
>>>>
>>>> No key was wounded during the drafting of this message.
>>>> _______________________________________________
>>>> Monodevelop-list mailing list
>>>> Monodevelop-list at lists.ximian.com
>>>> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>>>>
>>>>
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/Newbie-question%3A-Making-a-reference-to-a-linux-shared-library-tp19835738p19837320.html
>>> Sent from the Mono - MonoDevelop IDE mailing list archive at Nabble.com.
>>>
>>> _______________________________________________
>>> Monodevelop-list mailing list
>>> Monodevelop-list at lists.ximian.com
>>> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>>>
>>
>>
>>
>> --
>>
>> Cordially.
>>
>> Small Eric Quotations of the days:
>> ---------------------------------------------------------------------------
>> If one day one reproaches you that your work is not a work of
>> professional, say you that:
>> Amateurs built the arch of Noah, and professionals the Titanic.
>> ---------------------------------------------------------------------------
>>
>> Few people are done for independence, it is the privilege of the powerful
>> ones.
>> ---------------------------------------------------------------------------
>>
>> No key was wounded during the drafting of this message.
>> _______________________________________________
>> Monodevelop-list mailing list
>> Monodevelop-list at lists.ximian.com
>> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>>
>>
>
> --
> View this message in context: http://www.nabble.com/Newbie-question%3A-Making-a-reference-to-a-linux-shared-library-tp19835738p19838269.html
> Sent from the Mono - MonoDevelop IDE mailing list archive at Nabble.com.
>
> _______________________________________________
> Monodevelop-list mailing list
> Monodevelop-list at lists.ximian.com
> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>
--
Cordially.
Small Eric Quotations of the days:
---------------------------------------------------------------------------
If one day one reproaches you that your work is not a work of
professional, say you that:
Amateurs built the arch of Noah, and professionals the Titanic.
---------------------------------------------------------------------------
Few people are done for independence, it is the privilege of the powerful ones.
---------------------------------------------------------------------------
No key was wounded during the drafting of this message.
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