/** For the given class with non-NULL, non-system loader, save the supplied class file bytes permanently */
void save_class_file_bytes(JNIEnv *env, const char* name, jobject loader,
jint class_data_len, const unsigned char* class_data) {
int pos;
/*printf("!!! Gonna save classfilebytes for class %s\n", name);*/
(*env)->MonitorEnter(env, _ctable_lock);
if (_ctable_elements > _ctable_threshold) {
grow_ctable();
}
pos = hash(name, loader) % _ctable_size;
while (_ctable_classnames[pos] != NULL) {
if (strcmp(name, _ctable_classnames[pos]) == 0 && (*env)->IsSameObject(env, loader, _ctable_loaders[pos])) { /* do not save class' bytecode if it is already saved */
(*env)->MonitorExit(env, _ctable_lock);
return;
} else {
pos = (pos + 1) % _ctable_size;
}
}
_ctable_classnames[pos] = malloc(strlen(name) + 1);
strcpy(_ctable_classnames[pos], name);
_ctable_loaders[pos] = (*env)->NewWeakGlobalRef(env, loader);
_ctable_classdata[pos] = malloc(class_data_len);
memcpy(_ctable_classdata[pos], class_data, class_data_len);
_ctable_classdata_lens[pos] = class_data_len;
_ctable_elements++;
/* Check if we should try to do some pruning */
if (++_total_cached_class_count % 250 == 0) {
fprintf(stdout, "Profiler Agent: 250 classes cached.\n");
try_removing_bytes_for_unloaded_classes(env);
}
(*env)->MonitorExit(env, _ctable_lock);
}
/*
* Class: org_netbeans_lib_profiler_server_system_Classes
* Method: notifyAboutClassLoaderUnloading
* Signature: ()V
*/
JNIEXPORT void JNICALL Java_org_netbeans_lib_profiler_server_system_Classes_notifyAboutClassLoaderUnloading
(JNIEnv *env, jclass clz)
{
try_removing_bytes_for_unloaded_classes(env);
}
