8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
Reviewed-by: pliden, stefank, eosterlund, ehelin, sjohanss, rbackman, coleenp, ihse, jgeorge, lmesnik, rkennke
Contributed-by: per.liden@oracle.com, stefan.karlsson@oracle.com, erik.osterlund@oracle.com, mikael.gerdin@oracle.com, kim.barrett@oracle.com, nils.eliasson@oracle.com, rickard.backman@oracle.com, rwestrel@redhat.com, coleen.phillimore@oracle.com, robbin.ehn@oracle.com, gerard.ziemski@oracle.com, hugh.wilkinson@intel.com, sandhya.viswanathan@intel.com, bill.npo.wheeler@intel.com, vinay.k.awasthi@intel.com, yasuenag@gmail.com
/*
* Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#ifndef SHARE_GC_Z_ZMEMORY_INLINE_HPP
#define SHARE_GC_Z_ZMEMORY_INLINE_HPP
#include "gc/z/zMemory.hpp"
#include "utilities/debug.hpp"
inline ZMemory::ZMemory(uintptr_t start, size_t size) :
_start(start),
_end(start + size) {}
inline uintptr_t ZMemory::start() const {
return _start;
}
inline uintptr_t ZMemory::end() const {
return _end;
}
inline size_t ZMemory::size() const {
return end() - start();
}
inline void ZMemory::shrink_from_front(size_t size) {
assert(this->size() > size, "Too small");
_start += size;
}
inline void ZMemory::shrink_from_back(size_t size) {
assert(this->size() > size, "Too small");
_end -= size;
}
inline void ZMemory::grow_from_front(size_t size) {
assert(start() >= size, "Too big");
_start -= size;
}
inline void ZMemory::grow_from_back(size_t size) {
_end += size;
}
#endif // SHARE_GC_Z_ZMEMORY_INLINE_HPP