Richard S. Hall wrote: > Tim Ellison wrote: > >>> The OSGi framework must process the >>> Bundle-NativeCode header to make the selected libraries available at >>> some bundle unique location so that if each bundle contains >>> libfoo.so, the absolute path for each bundle's libfoo.so is unique. >> >> Not only path, but also filename I would assume, right? >> On windows a call to LoadLibrary with \\foo\mylib.dll followed by a call >> to LoadLibrary with \\bar\mylib.dll will simply result in reloading >> \\foo\mylib.dll. So will the framework mange the filename too to allow >> for multiple versions of my bundle's natives to be active concurrently? > > Are you sure? I don't think this is the case, I think it is the complete > path. I did testing on this before for Oscar and I only had to change > the path, unless I missed something.
Looking back at the msdn doc, it appears to depend upon the version of Windows. On 'big' windows (Windows 95/98/NT/XP etc.) then it appears that the LoadLibrary *does* consider the path as you say [1]; but for Windows CE it appears that the file basename must be different (see [2] -- the paragraph starting "Two different modules cannot..."). [1] http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/loadlibrary.asp [2] http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wcekernl/html/_wcesdk_Win32_LoadLibrary.asp Regards, Tim >> As a bonus question: Is there any support for native to native calls? >> > > No. > >> Assume I have a bundle that only contains library files, with a manifest >> to get the platform deploy right, versioning etc.. As I've now learnt, >> the framework will put the right library into some unique location that >> I'm not privy to; so I assume I can *only* load it via the framework >> (System.loadLibrary()) by calling back into java :-( , and then I need >> to get a handle to that library instance so I can GetProcAddress/dlsym a >> function in that library, and of course there is no API way to get that >> handle :-( . Is that right, am I out of luck for native->native calls >> between bundles? > > Yes, you are out of luck. > > > -> richard > > -- Tim Ellison ([EMAIL PROTECTED]) IBM Java technology centre, UK.
