如何检查JNI中的内存泄漏

Question

In my JNI program, I use

new
delete
env->NewGlobalRef
env->DeleteGlobalRef
jvm->AttachCurrentThread
jvm->DetachCurrentThread

What is a good way to check for memory leaks rigorously?

Answer 1

Make sure that every new , env->NewGlobalRef and jvm->AttachCurrentThread is in the constructor of an object which calls the matching deallocation function in its destructor.

This is a technique called RAII , which is vital to writing any correct program in C++.

Answer 2

• First try to use smart pointers .
• As Mankarse pointed out, try to use the RAII idiom whenever possible to create and delete your global references.
• Use as less global rferences as possible
• Free local references when constructing them in a loop

Take a look at here for managing references.

Do you already know that your native code is leaking memory?