326 } UNSAFE_END
327
328 UNSAFE_ENTRY(void, Unsafe_PutObject(JNIEnv *env, jobject unsafe, jobject obj, jlong offset, jobject x_h)) {
329 oop x = JNIHandles::resolve(x_h);
330 oop p = JNIHandles::resolve(obj);
331 assert_field_offset_sane(p, offset);
332 HeapAccess<ON_UNKNOWN_OOP_REF>::oop_store_at(p, offset, x);
333 } UNSAFE_END
334
335 UNSAFE_ENTRY(jboolean, Unsafe_IsFlattenedArray(JNIEnv *env, jobject unsafe, jclass c)) {
336 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(c));
337 return k->is_valueArray_klass();
338 } UNSAFE_END
339
340 UNSAFE_ENTRY(jobject, Unsafe_GetValue(JNIEnv *env, jobject unsafe, jobject obj, jlong offset, jclass c)) {
341 oop p = JNIHandles::resolve(obj);
342 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(c));
343 ValueKlass* vk = ValueKlass::cast(k);
344 assert_and_log_unsafe_value_type_access(p, offset, vk);
345 Handle p_h(THREAD, p);
346 bool in_heap;
347 oop v = vk->allocate_buffered_or_heap_instance(&in_heap, CHECK_NULL); // allocate instance
348 vk->initialize(CHECK_NULL); // If field is a default value, value class might not be initialized yet
349 vk->value_store(((char*)(oopDesc*)p_h()) + offset,
350 vk->data_for_oop(v),
351 in_heap, true);
352 return JNIHandles::make_local(env, v);
353 } UNSAFE_END
354
355 UNSAFE_ENTRY(void, Unsafe_PutValue(JNIEnv *env, jobject unsafe, jobject obj, jlong offset, jclass c, jobject value)) {
356 oop v = JNIHandles::resolve(value);
357 oop p = JNIHandles::resolve(obj);
358 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(c));
359 ValueKlass* vk = ValueKlass::cast(k);
360 assert_and_log_unsafe_value_type_access(p, offset, vk);
361 vk->value_store(vk->data_for_oop(v),
362 ((char*)(oopDesc*)p) + offset, true, true);
363 } UNSAFE_END
364
365 UNSAFE_ENTRY(jobject, Unsafe_GetObjectVolatile(JNIEnv *env, jobject unsafe, jobject obj, jlong offset)) {
366 oop p = JNIHandles::resolve(obj);
367 assert_field_offset_sane(p, offset);
368 oop v = HeapAccess<MO_SEQ_CST | ON_UNKNOWN_OOP_REF>::oop_load_at(p, offset);
369 return JNIHandles::make_local(env, v);
370 } UNSAFE_END
371
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326 } UNSAFE_END
327
328 UNSAFE_ENTRY(void, Unsafe_PutObject(JNIEnv *env, jobject unsafe, jobject obj, jlong offset, jobject x_h)) {
329 oop x = JNIHandles::resolve(x_h);
330 oop p = JNIHandles::resolve(obj);
331 assert_field_offset_sane(p, offset);
332 HeapAccess<ON_UNKNOWN_OOP_REF>::oop_store_at(p, offset, x);
333 } UNSAFE_END
334
335 UNSAFE_ENTRY(jboolean, Unsafe_IsFlattenedArray(JNIEnv *env, jobject unsafe, jclass c)) {
336 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(c));
337 return k->is_valueArray_klass();
338 } UNSAFE_END
339
340 UNSAFE_ENTRY(jobject, Unsafe_GetValue(JNIEnv *env, jobject unsafe, jobject obj, jlong offset, jclass c)) {
341 oop p = JNIHandles::resolve(obj);
342 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(c));
343 ValueKlass* vk = ValueKlass::cast(k);
344 assert_and_log_unsafe_value_type_access(p, offset, vk);
345 Handle p_h(THREAD, p);
346 oop v = vk->allocate_instance(CHECK_NULL); // allocate instance
347 vk->initialize(CHECK_NULL); // If field is a default value, value class might not be initialized yet
348 vk->value_store(((char*)(oopDesc*)p_h()) + offset,
349 vk->data_for_oop(v),
350 true, true);
351 return JNIHandles::make_local(env, v);
352 } UNSAFE_END
353
354 UNSAFE_ENTRY(void, Unsafe_PutValue(JNIEnv *env, jobject unsafe, jobject obj, jlong offset, jclass c, jobject value)) {
355 oop v = JNIHandles::resolve(value);
356 oop p = JNIHandles::resolve(obj);
357 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(c));
358 ValueKlass* vk = ValueKlass::cast(k);
359 assert_and_log_unsafe_value_type_access(p, offset, vk);
360 vk->value_store(vk->data_for_oop(v),
361 ((char*)(oopDesc*)p) + offset, true, true);
362 } UNSAFE_END
363
364 UNSAFE_ENTRY(jobject, Unsafe_GetObjectVolatile(JNIEnv *env, jobject unsafe, jobject obj, jlong offset)) {
365 oop p = JNIHandles::resolve(obj);
366 assert_field_offset_sane(p, offset);
367 oop v = HeapAccess<MO_SEQ_CST | ON_UNKNOWN_OOP_REF>::oop_load_at(p, offset);
368 return JNIHandles::make_local(env, v);
369 } UNSAFE_END
370
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