/*
* Copyright (c) 2018, 2020, 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_OOPS_OOPHANDLE_INLINE_HPP
#define SHARE_OOPS_OOPHANDLE_INLINE_HPP
#include "oops/oopHandle.hpp"
#include "oops/access.inline.hpp"
#include "gc/shared/oopStorage.inline.hpp"
inline oop OopHandle::resolve()
const {
return (_obj == NULL) ? (oop)NULL : NativeAccess<>::oop_load(_obj);
}
inline oop OopHandle::peek()
const {
return (_obj == NULL) ? (oop)NULL : NativeAccess<AS_NO_KEEPALIVE>::oop_load(_obj);
}
inline OopHandle::OopHandle(OopStorage* storage, oop obj) :
_obj(storage->allocate()) {
if (_obj == NULL) {
vm_exit_out_of_memory(
sizeof(oop), OOM_MALLOC_ERROR,
"Cannot create oop handle");
}
NativeAccess<>::oop_store(_obj, obj);
}
inline void OopHandle::release(OopStorage* storage) {
if (_obj != NULL) {
// Clear the OopHandle first
NativeAccess<>::oop_store(_obj, (oop)NULL);
storage->release(_obj);
}
}
inline void OopHandle::replace(oop obj) {
oop* ptr = ptr_raw();
assert(ptr != NULL,
"should not use replace");
NativeAccess<>::oop_store(ptr, obj);
}
inline oop OopHandle::xchg(oop new_value) {
return NativeAccess<MO_SEQ_CST>::oop_atomic_xchg(_obj, new_value);
}
#endif // SHARE_OOPS_OOPHANDLE_INLINE_HPP
