本文整理汇总了C++中JvmtiGetLoadedClassesClosure::extract方法的典型用法代码示例。如果您正苦于以下问题：C++ JvmtiGetLoadedClassesClosure::extract方法的具体用法？C++ JvmtiGetLoadedClassesClosure::extract怎么用？C++ JvmtiGetLoadedClassesClosure::extract使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类JvmtiGetLoadedClassesClosure的用法示例。
在下文中一共展示了JvmtiGetLoadedClassesClosure::extract方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: ma
jvmtiError
JvmtiGetLoadedClasses::getLoadedClasses(JvmtiEnv *env, jint* classCountPtr, jclass** classesPtr) {
// Since SystemDictionary::classes_do only takes a function pointer
// and doesn't call back with a closure data pointer,
// we can only pass static methods.
JvmtiGetLoadedClassesClosure closure;
{
// To get a consistent list of classes we need MultiArray_lock to ensure
// array classes aren't created, and SystemDictionary_lock to ensure that
// classes aren't added to the system dictionary,
MutexLocker ma(MultiArray_lock);
MutexLocker sd(SystemDictionary_lock);
// First, count the classes
SystemDictionary::classes_do(&JvmtiGetLoadedClassesClosure::increment);
Universe::basic_type_classes_do(&JvmtiGetLoadedClassesClosure::increment);
// Next, fill in the classes
closure.allocate();
SystemDictionary::classes_do(&JvmtiGetLoadedClassesClosure::add);
Universe::basic_type_classes_do(&JvmtiGetLoadedClassesClosure::add);
// Drop the SystemDictionary_lock, so the results could be wrong from here,
// but we still have a snapshot.
}
// Post results
jclass* result_list;
jvmtiError err = env->Allocate(closure.get_count() * sizeof(jclass),
(unsigned char**)&result_list);
if (err != JVMTI_ERROR_NONE) {
return err;
}
closure.extract(env, result_list);
*classCountPtr = closure.get_count();
*classesPtr = result_list;
return JVMTI_ERROR_NONE;
}