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a6b02840fa
BitfieldMan::getMissingIndexes family functions now takes unsigned char* bitfield instead of stl container for efficiency. PieceSelector::select now takes this bitfield. RarestPieceSelector::select now also performs efficiently for this change. bitfield namespace is introduced and it has several helper functions to handle basic bitfield operations such as test, count set bits, etc. * src/BitfieldMan.cc * src/BitfieldMan.h * src/DefaultBtRequestFactory.cc * src/DefaultPieceStorage.cc * src/DefaultPieceStorage.h * src/LongestSequencePieceSelector.cc * src/LongestSequencePieceSelector.h * src/Makefile.am * src/Piece.cc * src/Piece.h * src/PieceSelector.h * src/RarestPieceSelector.cc * src/RarestPieceSelector.h * src/Util.cc * src/Util.h * src/bitfield.h * test/BitfieldManTest.cc * test/LongestSequencePieceSelectorTest.cc * test/Makefile.am * test/RarestPieceSelectorTest.cc * test/UtilTest.cc * test/bitfieldTest.cc
60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
#include "bitfield.h"
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#include <cppunit/extensions/HelperMacros.h>
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namespace aria2 {
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class bitfieldTest:public CppUnit::TestFixture {
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CPPUNIT_TEST_SUITE(bitfieldTest);
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CPPUNIT_TEST(testTest);
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CPPUNIT_TEST(testCountBit32);
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CPPUNIT_TEST(testCountSetBit);
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CPPUNIT_TEST(testLastByteMask);
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CPPUNIT_TEST_SUITE_END();
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private:
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public:
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void testTest();
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void testCountBit32();
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void testCountSetBit();
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void testLastByteMask();
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};
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CPPUNIT_TEST_SUITE_REGISTRATION( bitfieldTest );
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void bitfieldTest::testTest()
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{
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unsigned char bitfield[] = { 0xaa };
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CPPUNIT_ASSERT(bitfield::test(bitfield, 8, 0));
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CPPUNIT_ASSERT(!bitfield::test(bitfield, 8, 1));
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}
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void bitfieldTest::testCountBit32()
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{
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CPPUNIT_ASSERT_EQUAL((size_t)32, bitfield::countBit32(UINT32_MAX));
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CPPUNIT_ASSERT_EQUAL((size_t)8, bitfield::countBit32(255));
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}
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void bitfieldTest::testCountSetBit()
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{
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unsigned char bitfield[] = { 0xff, 0xff, 0xff, 0xf0, 0xff, 0x01 };
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CPPUNIT_ASSERT_EQUAL((size_t)37, bitfield::countSetBit(bitfield, 48));
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CPPUNIT_ASSERT_EQUAL((size_t)36, bitfield::countSetBit(bitfield, 47));
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CPPUNIT_ASSERT_EQUAL((size_t)28, bitfield::countSetBit(bitfield, 32));
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}
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void bitfieldTest::testLastByteMask()
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{
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CPPUNIT_ASSERT_EQUAL((unsigned int)128,
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(unsigned int)bitfield::lastByteMask(9));
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CPPUNIT_ASSERT_EQUAL((unsigned int)240,
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(unsigned int)bitfield::lastByteMask(12));
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CPPUNIT_ASSERT_EQUAL((unsigned int)255,
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(unsigned int)bitfield::lastByteMask(16));
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}
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} // namespace aria2
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