digitalmars.D.learn - DLL jni Java6 update 1
- Christoph (27/27) Mar 13 2008 Hi All!
- Robert Fraser (12/49) Mar 13 2008 Hi Christoph,
- Christoph (4/57) Mar 13 2008 Hi Robert!
- Christoph Singewald (3/65) Mar 26 2008 I capitulate! On windows I had as above said problems loading the D-DLL ...
Hi All!
Ich have a problem with jni and Java6 update 1.
I have follwing files
my.dll (DMD, bud)
myjni.dll (SWIGm, dmc or bcc32) references my.dll
When I am using Java5 everthing runs fine.
Ich I use Java6 I get an access violation and the end of the app, I think when
it happens when java is unloding the dll. I tested it with a plain dll without
gc and any other D function:
--DLL
import std.c.windows.windows;
HINSTANCE g_hInst;
extern(C) export int getX() {
return 1;
}
extern (Windows)
BOOL DllMain(HINSTANCE hInstance, ULONG ulReason, LPVOID pvReserved) {
switch (ulReason) {
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
return false;
}
g_hInst=hInstance;
return true;
}
If I use a c++ dll created with bcc32/dmc everthing runs fine with Java6.
thank you for helping
christoph
Mar 13 2008
Christoph wrote:
Hi All!
Ich have a problem with jni and Java6 update 1.
I have follwing files
my.dll (DMD, bud)
myjni.dll (SWIGm, dmc or bcc32) references my.dll
When I am using Java5 everthing runs fine.
Ich I use Java6 I get an access violation and the end of the app, I think when
it happens when java is unloding the dll. I tested it with a plain dll without
gc and any other D function:
--DLL
import std.c.windows.windows;
HINSTANCE g_hInst;
extern(C) export int getX() {
return 1;
}
extern (Windows)
BOOL DllMain(HINSTANCE hInstance, ULONG ulReason, LPVOID pvReserved) {
switch (ulReason) {
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
return false;
}
g_hInst=hInstance;
return true;
}
If I use a c++ dll created with bcc32/dmc everthing runs fine with Java6.
thank you for helping
christoph
Hi Christoph,
Sorry I can't help you with your problem directly. However, if you plan
to use D's garbage collection, be warned that D and Java's garbage
collectors don't get along (since they use the same signals). If you
need the GC, IPC is a better solution (check
http://www.dsource.org/projects/dbus-d/ ). Frank Benoit probably knows
more about that than I do.
If you don't need D's GC, then JNI is a perfect solution, but I'm not
sure exactly what your problem is.
Sorry I couldn't be more helpful,
Robert
Mar 13 2008
Robert Fraser Wrote:Christoph wrote:Hi Robert! Thank you for your fast reply. You're are right, thats a real problem under unix/linux. But the curent problem appear to me under windows, I did not test it under linux at the moment. So may be I have to find another solution, because I want to use it under inw32 and linux ChristophHi All! Ich have a problem with jni and Java6 update 1. I have follwing files my.dll (DMD, bud) myjni.dll (SWIGm, dmc or bcc32) references my.dll When I am using Java5 everthing runs fine. Ich I use Java6 I get an access violation and the end of the app, I think when it happens when java is unloding the dll. I tested it with a plain dll without gc and any other D function: --DLL import std.c.windows.windows; HINSTANCE g_hInst; extern(C) export int getX() { return 1; } extern (Windows) BOOL DllMain(HINSTANCE hInstance, ULONG ulReason, LPVOID pvReserved) { switch (ulReason) { case DLL_THREAD_ATTACH: case DLL_THREAD_DETACH: return false; } g_hInst=hInstance; return true; } If I use a c++ dll created with bcc32/dmc everthing runs fine with Java6. thank you for helping christophHi Christoph, Sorry I can't help you with your problem directly. However, if you plan to use D's garbage collection, be warned that D and Java's garbage collectors don't get along (since they use the same signals). If you need the GC, IPC is a better solution (check http://www.dsource.org/projects/dbus-d/ ). Frank Benoit probably knows more about that than I do. If you don't need D's GC, then JNI is a perfect solution, but I'm not sure exactly what your problem is. Sorry I couldn't be more helpful, Robert
Mar 13 2008
Christoph Singewald <christoph singewald.at> Christoph Wrote:Robert Fraser Wrote:I capitulate! On windows I had as above said problems loading the D-DLL and under Linux there are real probrlems with the GC. I use sockets now and I am happy with it. christophChristoph wrote:Hi Robert! Thank you for your fast reply. You're are right, thats a real problem under unix/linux. But the curent problem appear to me under windows, I did not test it under linux at the moment. So may be I have to find another solution, because I want to use it under inw32 and linux ChristophHi All! Ich have a problem with jni and Java6 update 1. I have follwing files my.dll (DMD, bud) myjni.dll (SWIGm, dmc or bcc32) references my.dll When I am using Java5 everthing runs fine. Ich I use Java6 I get an access violation and the end of the app, I think when it happens when java is unloding the dll. I tested it with a plain dll without gc and any other D function: --DLL import std.c.windows.windows; HINSTANCE g_hInst; extern(C) export int getX() { return 1; } extern (Windows) BOOL DllMain(HINSTANCE hInstance, ULONG ulReason, LPVOID pvReserved) { switch (ulReason) { case DLL_THREAD_ATTACH: case DLL_THREAD_DETACH: return false; } g_hInst=hInstance; return true; } If I use a c++ dll created with bcc32/dmc everthing runs fine with Java6. thank you for helping christophHi Christoph, Sorry I can't help you with your problem directly. However, if you plan to use D's garbage collection, be warned that D and Java's garbage collectors don't get along (since they use the same signals). If you need the GC, IPC is a better solution (check http://www.dsource.org/projects/dbus-d/ ). Frank Benoit probably knows more about that than I do. If you don't need D's GC, then JNI is a perfect solution, but I'm not sure exactly what your problem is. Sorry I couldn't be more helpful, Robert
Mar 26 2008