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PojavLauncherTeam
GitHub Repository: PojavLauncherTeam/mobile
 Path: blob/master/src/hotspot/share/oops/constantPool.inline.hpp
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/*

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 * Copyright (c) 2018, 2021, Oracle and/or its affiliates. All rights reserved.

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 *

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 * This code is free software; you can redistribute it and/or modify it

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 * under the terms of the GNU General Public License version 2 only, as

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 * published by the Free Software Foundation.

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 *

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 * This code is distributed in the hope that it will be useful, but WITHOUT

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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * version 2 for more details (a copy is included in the LICENSE file that

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 * accompanied this code).

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 *

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 * You should have received a copy of the GNU General Public License version

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 * 2 along with this work; if not, write to the Free Software Foundation,

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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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 *

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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 * or visit www.oracle.com if you need additional information or have any

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 * questions.

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 *

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 */

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#ifndef SHARE_OOPS_CONSTANTPOOL_INLINE_HPP

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#define SHARE_OOPS_CONSTANTPOOL_INLINE_HPP

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#include "oops/constantPool.hpp"

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#include "oops/cpCache.inline.hpp"

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#include "runtime/atomic.hpp"

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inline CPSlot ConstantPool::slot_at(int which) const {

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  assert(is_within_bounds(which), "index out of bounds");

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  assert(!tag_at(which).is_unresolved_klass() && !tag_at(which).is_unresolved_klass_in_error(), "Corrupted constant pool");

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  // Uses volatile because the klass slot changes without a lock.

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  intptr_t adr = Atomic::load_acquire(obj_at_addr(which));

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  assert(adr != 0 || which == 0, "cp entry for klass should not be zero");

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  return CPSlot(adr);

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}

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inline Klass* ConstantPool::resolved_klass_at(int which) const {  // Used by Compiler

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  guarantee(tag_at(which).is_klass(), "Corrupted constant pool");

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  // Must do an acquire here in case another thread resolved the klass

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  // behind our back, lest we later load stale values thru the oop.

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  CPKlassSlot kslot = klass_slot_at(which);

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  assert(tag_at(kslot.name_index()).is_symbol(), "sanity");

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  Klass** adr = resolved_klasses()->adr_at(kslot.resolved_klass_index());

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  return Atomic::load_acquire(adr);

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}

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#endif // SHARE_OOPS_CONSTANTPOOL_INLINE_HPP

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