extern "C" jboolean
JVM_IterateJarEntries(const JvmPathChar* jar_file_name,
JvmNameFilterProc entry_filter_proc,
JvmDoJarEntryProc do_jar_entry_proc,
JvmAllocProc alloc_proc, JvmFreeProc free_proc,
void* caller_data) {
SETUP_ERROR_CHECKER_ARG;
if (alloc_proc == NULL) {
if (free_proc != NULL) {
return KNI_FALSE;
} else {
alloc_proc = (JvmAllocProc)&OsMemory_allocate;
free_proc = (JvmFreeProc)&OsMemory_free;
}
}
if (free_proc == NULL) {
return KNI_FALSE;
}
JarFile jf(alloc_proc, free_proc);
jf.open(jar_file_name, false, false JVM_CHECK_0);
if (!jf.is_open()) {
return KNI_FALSE;
}
bool success = jf.filtered_do_entries(entry_filter_proc, do_jar_entry_proc,
caller_data JVM_CHECK_0);
return CAST_TO_JBOOLEAN(success);
}
KNIEXPORT jboolean KNI_IsAssignableFrom(jclass classHandle1,
jclass classHandle2) {
// Create handle for the first class
JavaClassObj::Raw first_mirror = kni_read_handle(classHandle1);
GUARANTEE(first_mirror.not_null(), "null argument to KNI_IsInstanceOf");
JavaClass::Raw first_class = first_mirror().java_class();
// Create handle for the second class
JavaClassObj::Raw second_mirror = kni_read_handle(classHandle2);
GUARANTEE(second_mirror.not_null(), "null argument to KNI_IsInstanceOf");
JavaClass::Raw second_class = second_mirror().java_class();
// Do subtype check
return CAST_TO_JBOOLEAN(first_class().is_subtype_of(&second_class));
}
KNIEXPORT jboolean KNI_IsInstanceOf(jobject objectHandle, jclass classHandle) {
// Create handle for objectHandle
Oop::Raw object = kni_read_handle(objectHandle);
if (object.is_null()) {
return KNI_TRUE;
}
JavaClass::Raw object_class = object.blueprint();
// Create handle for classHandle
JavaClassObj::Raw mirror = kni_read_handle(classHandle);
GUARANTEE(mirror.not_null(), "null argument to KNI_IsInstanceOf");
JavaClass::Raw other_class = mirror().java_class();
// Do subtype check
return CAST_TO_JBOOLEAN(object_class().is_subtype_of(&other_class));
}
KNIEXPORT jboolean KNI_IsSameObject(jobject obj1, jobject obj2) {
OopDesc* object1 = kni_read_handle(obj1);
OopDesc* object2 = kni_read_handle(obj2);
// Do identity check
return CAST_TO_JBOOLEAN(object1 == object2);
}
