63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
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/*
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*/
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#include "precompiled.hpp"
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#include "gc/z/zPhysicalMemory.inline.hpp"
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#include "utilities/debug.hpp"
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#include "unittest.hpp"
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#if defined(AMD64)
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TEST(ZPhysicalMemorySegmentTest, split) {
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const size_t SegmentSize = 2 * M;
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ZPhysicalMemorySegment seg(0, 10 * SegmentSize);
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ZPhysicalMemorySegment seg_split0 = seg.split(0 * SegmentSize);
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EXPECT_EQ(seg_split0.size(), 0 * SegmentSize);
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EXPECT_EQ( seg.size(), 10 * SegmentSize);
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ZPhysicalMemorySegment seg_split1 = seg.split(5 * SegmentSize);
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EXPECT_EQ(seg_split1.size(), 5 * SegmentSize);
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EXPECT_EQ( seg.size(), 5 * SegmentSize);
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ZPhysicalMemorySegment seg_split2 = seg.split(5 * SegmentSize);
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EXPECT_EQ(seg_split2.size(), 5 * SegmentSize);
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EXPECT_EQ( seg.size(), 0 * SegmentSize);
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ZPhysicalMemorySegment seg_split3 = seg.split(0 * SegmentSize);
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EXPECT_EQ(seg_split3.size(), 0 * SegmentSize);
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EXPECT_EQ( seg.size(), 0 * SegmentSize);
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}
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TEST(ZPhysicalMemoryTest, split) {
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const size_t SegmentSize = 2 * M;
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ZPhysicalMemoryManager pmem_manager(10 * SegmentSize, SegmentSize);
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ZPhysicalMemory pmem = pmem_manager.alloc(8 * SegmentSize);
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EXPECT_EQ(pmem.nsegments(), 1u) << "wrong number of segments";
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ZPhysicalMemory split0_pmem = pmem.split(SegmentSize);
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EXPECT_EQ(split0_pmem.nsegments(), 1u);
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EXPECT_EQ( pmem.nsegments(), 1u);
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EXPECT_EQ(split0_pmem.size(), 1 * SegmentSize);
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EXPECT_EQ( pmem.size(), 7 * SegmentSize);
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ZPhysicalMemory split1_pmem = pmem.split(2 * SegmentSize);
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EXPECT_EQ(split1_pmem.nsegments(), 1u);
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EXPECT_EQ( pmem.nsegments(), 1u);
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EXPECT_EQ(split1_pmem.size(), 2 * SegmentSize);
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EXPECT_EQ( pmem.size(), 5 * SegmentSize);
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ZPhysicalMemory split2_pmem = pmem.split(5 * SegmentSize);
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EXPECT_EQ(split2_pmem.nsegments(), 1u);
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EXPECT_EQ( pmem.nsegments(), 1u);
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EXPECT_EQ(split2_pmem.size(), 5 * SegmentSize);
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EXPECT_EQ( pmem.size(), 0 * SegmentSize);
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}
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#endif
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