106 lines
3.3 KiB
C++
106 lines
3.3 KiB
C++
/*
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* Copyright (c) 2021, 2023, 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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#include "precompiled.hpp"
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#include "gc/z/zGlobals.hpp"
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#include "gc/z/zMemory.inline.hpp"
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#include "unittest.hpp"
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class ZAddressOffsetMaxSetter {
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private:
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const size_t _old_max;
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const size_t _old_mask;
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public:
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ZAddressOffsetMaxSetter()
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: _old_max(ZAddressOffsetMax),
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_old_mask(ZAddressOffsetMask) {
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ZAddressOffsetMax = size_t(16) * G * 1024;
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ZAddressOffsetMask = ZAddressOffsetMax - 1;
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}
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~ZAddressOffsetMaxSetter() {
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ZAddressOffsetMax = _old_max;
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ZAddressOffsetMask = _old_mask;
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}
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};
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TEST(ZMemory, accessors) {
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ZAddressOffsetMaxSetter setter;
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{
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ZMemory mem(zoffset(0), ZGranuleSize);
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EXPECT_EQ(mem.start(), zoffset(0));
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EXPECT_EQ(mem.end(), zoffset_end(ZGranuleSize));
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EXPECT_EQ(mem.size(), ZGranuleSize);
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}
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{
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ZMemory mem(zoffset(ZGranuleSize), ZGranuleSize);
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EXPECT_EQ(mem.start(), zoffset(ZGranuleSize));
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EXPECT_EQ(mem.end(), zoffset_end(ZGranuleSize + ZGranuleSize));
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EXPECT_EQ(mem.size(), ZGranuleSize);
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}
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{
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// Max area - check end boundary
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ZMemory mem(zoffset(0), ZAddressOffsetMax);
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EXPECT_EQ(mem.start(), zoffset(0));
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EXPECT_EQ(mem.end(), zoffset_end(ZAddressOffsetMax));
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EXPECT_EQ(mem.size(), ZAddressOffsetMax);
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}
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}
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TEST(ZMemory, resize) {
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ZAddressOffsetMaxSetter setter;
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ZMemory mem(zoffset(ZGranuleSize * 2), ZGranuleSize * 2) ;
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mem.shrink_from_front(ZGranuleSize);
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EXPECT_EQ(mem.start(), zoffset(ZGranuleSize * 3));
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EXPECT_EQ(mem.end(), zoffset_end(ZGranuleSize * 4));
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EXPECT_EQ(mem.size(), ZGranuleSize * 1);
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mem.grow_from_front(ZGranuleSize);
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mem.shrink_from_back(ZGranuleSize);
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EXPECT_EQ(mem.start(), zoffset(ZGranuleSize * 2));
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EXPECT_EQ(mem.end(), zoffset_end(ZGranuleSize * 3));
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EXPECT_EQ(mem.size(), ZGranuleSize * 1);
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mem.grow_from_back(ZGranuleSize);
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mem.grow_from_front(ZGranuleSize);
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EXPECT_EQ(mem.start(), zoffset(ZGranuleSize * 1));
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EXPECT_EQ(mem.end(), zoffset_end(ZGranuleSize * 4));
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EXPECT_EQ(mem.size(), ZGranuleSize * 3);
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mem.shrink_from_front(ZGranuleSize);
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mem.grow_from_back(ZGranuleSize);
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EXPECT_EQ(mem.start(), zoffset(ZGranuleSize * 2));
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EXPECT_EQ(mem.end(), zoffset_end(ZGranuleSize * 5));
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EXPECT_EQ(mem.size(), ZGranuleSize * 3);
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mem.shrink_from_back(ZGranuleSize);
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}
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