| /* |
| * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_OOPS_CONSTANTPOOL_INLINE_HPP |
| #define SHARE_VM_OOPS_CONSTANTPOOL_INLINE_HPP |
| |
| #include "oops/constantPool.hpp" |
| #include "oops/cpCache.inline.hpp" |
| #include "runtime/orderAccess.hpp" |
| |
| inline CPSlot ConstantPool::slot_at(int which) const { |
| assert(is_within_bounds(which), "index out of bounds"); |
| assert(!tag_at(which).is_unresolved_klass() && !tag_at(which).is_unresolved_klass_in_error(), "Corrupted constant pool"); |
| // Uses volatile because the klass slot changes without a lock. |
| intptr_t adr = OrderAccess::load_acquire(obj_at_addr(which)); |
| assert(adr != 0 || which == 0, "cp entry for klass should not be zero"); |
| return CPSlot(adr); |
| } |
| |
| inline Klass* ConstantPool::resolved_klass_at(int which) const { // Used by Compiler |
| guarantee(tag_at(which).is_klass(), "Corrupted constant pool"); |
| // Must do an acquire here in case another thread resolved the klass |
| // behind our back, lest we later load stale values thru the oop. |
| CPKlassSlot kslot = klass_slot_at(which); |
| assert(tag_at(kslot.name_index()).is_symbol(), "sanity"); |
| |
| Klass** adr = resolved_klasses()->adr_at(kslot.resolved_klass_index()); |
| return OrderAccess::load_acquire(adr); |
| } |
| |
| inline bool ConstantPool::is_pseudo_string_at(int which) { |
| assert(tag_at(which).is_string(), "Corrupted constant pool"); |
| return slot_at(which).is_pseudo_string(); |
| } |
| |
| inline oop ConstantPool::pseudo_string_at(int which, int obj_index) { |
| assert(is_pseudo_string_at(which), "must be a pseudo-string"); |
| oop s = resolved_references()->obj_at(obj_index); |
| return s; |
| } |
| |
| inline oop ConstantPool::pseudo_string_at(int which) { |
| assert(is_pseudo_string_at(which), "must be a pseudo-string"); |
| int obj_index = cp_to_object_index(which); |
| oop s = resolved_references()->obj_at(obj_index); |
| return s; |
| } |
| |
| #endif // SHARE_VM_OOPS_CONSTANTPOOL_INLINE_HPP |