File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
http://aspose.com/file-tools
Win a copy of Clojure in Action this week in the Clojure forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

JNI with parameters on Linux

 
paul wheaton
Trailboss
Pie
Posts: 21183
Firefox Browser IntelliJ IDE Java
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

Well, I got JNI to work fine on Linux as long as I don't do anything interesting.
I'm now trying to pass in a string and get a string back. My java program takes a string from the command line and sends it to the JNI. The JNI reverses the string and returns it. The java program prints the results.
If I run the program with no parameters, I get the default message. If I pass a parameter, I get some sort of crash. Here is what I have:

Can anyone tell me what I'm doing wrong?

 
paul wheaton
Trailboss
Pie
Posts: 21183
Firefox Browser IntelliJ IDE Java
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
To answer my own question ...
I change the value of s before passing it back to ReleaseStringUTFChars(), so it has no idea what to release.
It turns out that there was a second flaw in the c program: I was returning buffy instead of s.
 
Don't get me started about those stupid light bulbs.
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic