Re: [Swig-user] [Java] AttachCurrentThread() cast error

[William S F. <ws...@fu...>]

GoG wrote:
> Hi everybody,
> I found a problem trying to wrap my C++ code to Java.
> I use 'director' feature on some of my classes and SWIG
> generate thoses lines :
> 
> 
> #if defined(SWIG_JAVA_ATTACH_CURRENT_THREAD_AS_DAEMON)
>         // Attach a daemon thread to the JVM. Useful when the JVM should not
> wait for 
>         // the thread to exit upon shutdown. Only for jdk-1.4 and later.
>         director_->swig_jvm_->AttachCurrentThreadAsDaemon((void **)&jenv_,
> NULL);
> #else
>         director_->swig_jvm_->AttachCurrentThread((void **)&jenv_, NULL);
> #endif
> 
> 
> Or 'AttachCurrentThread[AsDaemon]()' is waiting for 'JENV**' as first
> parameter.
> So '(void **)' cast is useless plus make my GCC 4.4/MinGW fail building it
> (on Windows/Linux).
> 
> It's the only issue I have, preventing me from using continuous integration
> on my project.
> 
> Did I miss something in interface files or is it a SWIG issue ?
> Thanks for your help.
I don't recognise your error messages, but if the compiler cannot find 
AttachCurrentThread or AttachCurrentThreadAsDaemon, then you probably 
have a non-standard or maybe an extremely old JVM. Check your JVM docs 
for the existence of these methods. I presume you have tried with and 
without SWIG_JAVA_ATTACH_CURRENT_THREAD_AS_DAEMON being defined in your 
C++ layer?

William