tstRTBitOperations.cpp revision 4b161f5c8c5ec990096e7aaf34f175dd23c97024
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * IPRT Testcase - Inlined Bit Operations.
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * Copyright (C) 2006-2009 Sun Microsystems, Inc.
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * This file is part of VirtualBox Open Source Edition (OSE), as
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * available from http://www.virtualbox.org. This file is free software;
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * you can redistribute it and/or modify it under the terms of the GNU
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * General Public License (GPL) as published by the Free Software
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * Foundation, in version 2 as it comes in the "COPYING" file of the
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * The contents of this file may alternatively be used under the terms
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * of the Common Development and Distribution License Version 1.0
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * VirtualBox OSE distribution, in which case the provisions of the
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * CDDL are applicable instead of those of the GPL.
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * You may elect to license modified versions of this file under the
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * terms and conditions of either the GPL or the CDDL or both.
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * Clara, CA 95054 USA or visit http://www.sun.com if you need
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * additional information or have any questions.
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest/*******************************************************************************
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest* Header Files *
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest*******************************************************************************/
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * Test 2 - ID allocation using a bitmap.
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest#define TEST2_ID_LAST ((RT_BIT_32(28) - 1) >> 8)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest uint32_t bmChunkId[(TEST2_ID_LAST + 1 + 31) / 32];
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forreststatic uint32_t test2AllocId(struct TestMap2 *p2)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * Scan sequentially from the last one + 1.
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest idChunk = ASMBitNextClear(&p2->bmChunkId[0], TEST2_ID_LAST + 1, idChunk);
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest if (ASMAtomicBitTestAndSet(&p2->bmChunkId[0], idChunk))
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest RTTestFailed(NIL_RTTEST, "line %d: idChunk=%#x", __LINE__, idChunk);
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * Ok, scan from the start.
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest idChunk = ASMBitFirstClear(&p2->bmChunkId[0], TEST2_ID_LAST + 1);
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest RTTestFailed(NIL_RTTEST, "line %d: idChunk=%#x", __LINE__, idChunk);
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest if (ASMAtomicBitTestAndSet(&p2->bmChunkId[0], idChunk))
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest RTTestFailed(NIL_RTTEST, "line %d: idChunk=%#x", __LINE__, idChunk);
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest struct TestMap2 *p2 = (struct TestMap2 *)RTTestGuardedAllocTail(hTest, sizeof(TestMap2));
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest /* Some simple tests first. */
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest RTTEST_CHECK(hTest, ASMBitFirstSet(&p2->bmChunkId[0], TEST2_ID_LAST + 1) == -1);
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest for (uint32_t iBit = 0; iBit <= TEST2_ID_LAST; iBit++)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest RTTEST_CHECK(hTest, !ASMBitTest(&p2->bmChunkId[0], iBit));
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest memset(&p2->bmChunkId[0], 0xff, sizeof(p2->bmChunkId));
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest RTTEST_CHECK(hTest, ASMBitFirstClear(&p2->bmChunkId[0], TEST2_ID_LAST + 1) == -1);
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest for (uint32_t iBit = 0; iBit <= TEST2_ID_LAST; iBit++)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest RTTEST_CHECK(hTest, ASMBitTest(&p2->bmChunkId[0], iBit));
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest /* The real test. */
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest while (cLeft-- > 0)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest RTTEST_CHECK(hTest, ASMBitFirstClear(&p2->bmChunkId[0], TEST2_ID_LAST + 1) == -1);
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest * Init the runtime and stuff.
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest || RT_FAILURE(RTTestCreate("tstRTBitOperations", &hTest)))
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest RTPrintf("tstRTBitOperations: fatal initialization error\n");
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest struct TestMap *p = (struct TestMap *)RTTestGuardedAllocTail(hTest, sizeof(*p));
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest#define DUMP() RTTestPrintf(hTest, RTTESTLVL_INFO, "au32={%08x,%08x,%08x,%08x}", p->au32[0], p->au32[1], p->au32[2], p->au32[3])
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest#define CHECK(expr) do { if (!(expr)) { RTTestFailed(hTest, "line %d: %s", __LINE__, #expr); DUMP(); } CHECK_GUARD(s); } while (0)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest#define CHECK_BIT(expr, b1) do { if (!(expr)) { RTTestFailed(hTest, "line %d, b1=%d: %s", __LINE__, b1, #expr); } CHECK_GUARD(s); } while (0)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest#define CHECK_BIT2(expr, b1, b2) do { if (!(expr)) { RTTestFailed(hTest, "line %d, b1=%d b2=%d: %s", __LINE__, b1, b2, #expr); } CHECK_GUARD(s); } while (0)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest#define CHECK_BIT3(expr, b1, b2, b3) do { if (!(expr)) { RTTestFailed(hTest, "line %d, b1=%d b2=%d b3=%d: %s", __LINE__, b1, b2, b3, #expr); } CHECK_GUARD(s); } while (0)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest#define GUARD_MAP(p) do { } while (0)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest#define CHECK_GUARD(p) do { } while (0)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest#define MAP_CLEAR(p) do { RT_ZERO(*(p)); GUARD_MAP(p); } while (0)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest#define MAP_SET(p) do { memset(p, 0xff, sizeof(*(p))); GUARD_MAP(p); } while (0)
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest /* self check. */
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest CHECK(ASMBitTestAndSet(&p->au32[0], 0) && p->au32[0] == 0x80000001U);
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest CHECK(!ASMBitTestAndSet(&p->au32[0], 16) && p->au32[0] == 0x80010001U);
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest CHECK(ASMBitTestAndSet(&p->au32[0], 16) && p->au32[0] == 0x80010001U);
0fe99aaa2652cb97bbd71876ea28074e6241c3c0Andrew Forrest CHECK(!ASMBitTestAndSet(&p->au32[0], 80) && p->au32[2] == 0x00010002U);
MAP_SET(p);
MAP_SET(p);
MAP_SET(p);
MAP_SET(p);
MAP_SET(p);
MAP_SET(p);
MAP_SET(p);
MAP_SET(p);
MAP_SET(p);
MAP_SET(p);
MAP_SET(p);
MAP_CLEAR(p);
MAP_SET(p);
MAP_SET(p);
MAP_SET(p);
MAP_CLEAR(p);
MAP_SET(p);
MAP_CLEAR(p);