/*
* Copyright ( c ) 2017 , 2019 , 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
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*/
#include "precompiled.hpp"
#include "gc/z/zAttachedArray.inline.hpp"
#include "gc/z/zLock.inline.hpp"
#include "gc/z/zNMethodData.hpp"
#include "memory/allocation.hpp"
#include "runtime/atomic.hpp"
#include "utilities/align.hpp"
#include "utilities/debug.hpp"
#include "utilities/growableArray.hpp"
ZNMethodDataOops* ZNMethodDataOops::create(const GrowableArray<oop*>& immediates, bool has_non_immediates) {
return ::new (AttachedArray::alloc(immediates.length())) ZNMethodDataOops(immediates, has_non_immediates);
}
void ZNMethodDataOops::destroy(ZNMethodDataOops* oops) {
AttachedArray::free(oops);
}
ZNMethodDataOops::ZNMethodDataOops(const GrowableArray<oop*>& immediates, bool has_non_immediates) :
_immediates(immediates.length()),
_has_non_immediates(has_non_immediates) {
// Save all immediate oops
for (size_t i = 0 ; i < immediates_count(); i++) {
immediates_begin()[i] = immediates.at(int (i));
}
}
size_t ZNMethodDataOops::immediates_count() const {
return _immediates.length();
}
oop** ZNMethodDataOops::immediates_begin() const {
return _immediates(this );
}
oop** ZNMethodDataOops::immediates_end() const {
return immediates_begin() + immediates_count();
}
bool ZNMethodDataOops::has_non_immediates() const {
return _has_non_immediates;
}
ZNMethodData::ZNMethodData() :
_lock(),
_oops(NULL) {}
ZNMethodData::~ZNMethodData() {
ZNMethodDataOops::destroy(_oops);
}
ZReentrantLock* ZNMethodData::lock() {
return &_lock;
}
ZNMethodDataOops* ZNMethodData::oops() const {
return Atomic::load_acquire(&_oops);
}
ZNMethodDataOops* ZNMethodData::swap_oops(ZNMethodDataOops* new_oops) {
ZLocker<ZReentrantLock> locker(&_lock);
ZNMethodDataOops* const old_oops = _oops;
_oops = new_oops;
return old_oops;
}
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