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8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)

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Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Erik Osterlund <erik.osterlund@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Kim Barrett <kim.barrett@oracle.com>
Co-authored-by: Nils Eliasson <nils.eliasson@oracle.com>
Co-authored-by: Rickard Backman <rickard.backman@oracle.com>
Co-authored-by: Roland Westrelin <rwestrel@redhat.com>
Co-authored-by: Coleen Phillimore <coleen.phillimore@oracle.com>
Co-authored-by: Robbin Ehn <robbin.ehn@oracle.com>
Co-authored-by: Gerard Ziemski <gerard.ziemski@oracle.com>
Co-authored-by: Hugh Wilkinson <hugh.wilkinson@intel.com>
Co-authored-by: Sandhya Viswanathan <sandhya.viswanathan@intel.com>
Co-authored-by: Bill Wheeler <bill.npo.wheeler@intel.com>
Co-authored-by: Vinay K. Awasthi <vinay.k.awasthi@intel.com>
Co-authored-by: Yasumasa Suenaga <yasuenag@gmail.com>
Reviewed-by: pliden, stefank, eosterlund, ehelin, sjohanss, rbackman, coleenp, ihse, jgeorge, lmesnik, rkennke
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Per Lidén 2018-06-12 17:40:28 +02:00
parent 312328b44c
commit e7af7a4aef
322 changed files with 27196 additions and 79 deletions
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111
src/hotspot/share/gc/z/zArray.inline.hpp Normal file
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/*
* Copyright (c) 2015, 2017, 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_GC_Z_ZARRAY_INLINE_HPP
#define SHARE_GC_Z_ZARRAY_INLINE_HPP
#include "gc/z/zArray.hpp"
#include "memory/allocation.inline.hpp"
#include "runtime/atomic.hpp"
template <typename T>
inline ZArray<T>::ZArray() :
_array(NULL),
_size(0),
_capacity(0) {}
template <typename T>
inline ZArray<T>::~ZArray() {
if (_array != NULL) {
FREE_C_HEAP_ARRAY(T, _array);
}
}
template <typename T>
inline size_t ZArray<T>::size() const {
return _size;
}
template <typename T>
inline bool ZArray<T>::is_empty() const {
return size() == 0;
}
template <typename T>
inline T ZArray<T>::at(size_t index) const {
assert(index < _size, "Index out of bounds");
return _array[index];
}
template <typename T>
inline void ZArray<T>::expand(size_t new_capacity) {
T* new_array = NEW_C_HEAP_ARRAY(T, new_capacity, mtGC);
if (_array != NULL) {
memcpy(new_array, _array, sizeof(T) * _capacity);
FREE_C_HEAP_ARRAY(T, _array);
}
_array = new_array;
_capacity = new_capacity;
}
template <typename T>
inline void ZArray<T>::add(T value) {
if (_size == _capacity) {
const size_t new_capacity = (_capacity > 0) ? _capacity * 2 : initial_capacity;
expand(new_capacity);
}
_array[_size++] = value;
}
template <typename T>
inline void ZArray<T>::clear() {
_size = 0;
}
template <typename T, bool parallel>
inline ZArrayIteratorImpl<T, parallel>::ZArrayIteratorImpl(ZArray<T>* array) :
_array(array),
_next(0) {}
template <typename T, bool parallel>
inline bool ZArrayIteratorImpl<T, parallel>::next(T* elem) {
if (parallel) {
const size_t next = Atomic::add(1u, &_next) - 1u;
if (next < _array->size()) {
*elem = _array->at(next);
return true;
}
} else {
if (_next < _array->size()) {
*elem = _array->at(_next++);
return true;
}
}
// No more elements
return false;
}
#endif // SHARE_GC_Z_ZARRAY_INLINE_HPP