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Published on 2010-04-08T11:29:48Z
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Here's a"dumb question : can two jstrings be compared in JNI ? if so how ?
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I have the following code in a c++ "listener class" (more or less), which calls some function of a Java object. I suspect there's a memory leak:
JNIEnv *env = NULL;
vm_->AttachCurrentThread(&env, NULL);
const jclass cls = env->FindClass(...);
const jmethodID meth = env->GetMethodID(…
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Dear colleagues,
I need raise an exception from C++ code. Raised exception must contain text and code of error.
So common form:
ThrowNew(jclass clazz, const char *msg)
is not applicable. That is why I want create my own instance of java class:
public class MyException extends Exception
that…
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Hi.
While I do my best to clean JNI objects to free native memory in the end of the usage, there are still some that hang around for a long time, wasting system native memory.
Is there any way to force the GC to give priority in collection of these JNI proxies?
I mean is there a way to cause GC…
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As an example for later use in Android I wrote a simple callback interface. While doing so i ran into the following error or bug or whatever. In C the two commented lines are supposed to be executed resulting in calling the C callback onChange. But instead i get an UnsatisfiedLinkError. Calling the…
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I'm having some difficulty with JNI. I'm using JNI to call some Java methods from a C++ program. This implementation of JNI is working fine.
The goal of the Java program is to send commands over USB to a LEGO robot using LEJOS. This works fine when running the Java program by itself but for some…
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I want to learn C++ by using Vim and MinGW as compiler. I'm interesting at "C++ Primer (4th Edition)" and "C++ Primer Plus (5th Edition)" but I don't know how about it different. It has no book store that I can review those books, so I want to know, what is the different between those book and which…
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I have a Computer Science degree (long2 time ago) .. I do know Java OOP but i am now trying to pick up C++. I do have C and of course data structure using C or pascal. I have started reading Bjarne Stroustrup book (The C++ Programming Language - Special Edition) but find it extremely difficult esp…
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Ok, so I don't want you to do my homework for me, but I'm a little lost with this final assignment and need all the help I can get. Learning about programming is tough enough, but doing it online is next to impossible for me... Now, to get to the program, I am going to paste what I have so far. This…
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In unmanaged c++ dll i have a function which takes constant std::string as argument
Prototype : void read ( const std::string &imageSpec_ )
I call this function from managed c++ dll by passing a std::string.
When i debug the unmanaged c++ code the parameter imageSpec_ shows the value correctly…
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After more than a few questions about deciding on C++ books I thought we could make a better community wiki version. Providing QUALITY books and an approximate skill level. Maybe we can add a short blurb/description about each book that you have personally read / benefited from. Feel free to debate…
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