| import director_ownership.*; |
| |
| public class director_ownership_runme { |
| |
| static { |
| try { |
| System.loadLibrary("director_ownership"); |
| } catch (UnsatisfiedLinkError e) { |
| System.err.println("Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" + e); |
| System.exit(1); |
| } |
| } |
| |
| public static void set_content_and_release(Container container, ContentBase content) { |
| content.swigReleaseOwnership(); |
| container.set_content(content); |
| } |
| |
| public static void main(String argv[]) { |
| |
| Container container = new Container(); |
| |
| // make a content in java (cMemoryOwn true) |
| ContentBase content_java = new ContentDerived(); |
| |
| // make a content in c++ (cMemoryOwn true) |
| ContentBase content_cpp = director_ownership.make_content(); |
| |
| set_content_and_release(container, content_java); |
| if (!container.get_content().get_name().equals("ContentDerived")) |
| throw new RuntimeException("did not get ContentDerived"); |
| |
| // when swigReleaseOwnership() is called on content_cpp, swig tries a static_cast to director and calls the method |
| // director->swig_java_change_ownership. The content created in c++ native library is not a director, therefore a |
| // segfault may occur. |
| // With a check done using dynamic_cast this issue could be avoided. |
| set_content_and_release(container, content_cpp); |
| if (!container.get_content().get_name().equals("ContentDerived")) |
| throw new RuntimeException("did not get ContentDerived"); |
| } |
| } |
| |