| 1 | /* $Id: tstRTHeapOffset.cpp 25059 2009-11-27 18:17:44Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT Testcase - Offset Based Heap.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2009 Sun Microsystems, Inc.
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | *
|
|---|
| 26 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
|
|---|
| 27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
|
|---|
| 28 | * additional information or have any questions.
|
|---|
| 29 | */
|
|---|
| 30 |
|
|---|
| 31 | /*******************************************************************************
|
|---|
| 32 | * Header Files *
|
|---|
| 33 | *******************************************************************************/
|
|---|
| 34 | #include <iprt/heap.h>
|
|---|
| 35 | #include <iprt/initterm.h>
|
|---|
| 36 | #include <iprt/err.h>
|
|---|
| 37 | #include <iprt/stream.h>
|
|---|
| 38 | #include <iprt/string.h>
|
|---|
| 39 | #include <iprt/param.h>
|
|---|
| 40 | #include <iprt/assert.h>
|
|---|
| 41 | #include <iprt/log.h>
|
|---|
| 42 | #include <iprt/test.h>
|
|---|
| 43 |
|
|---|
| 44 |
|
|---|
| 45 | int main(int argc, char *argv[])
|
|---|
| 46 | {
|
|---|
| 47 | /*
|
|---|
| 48 | * Init runtime.
|
|---|
| 49 | */
|
|---|
| 50 | RTTEST hTest;
|
|---|
| 51 | int rc = RTTestInitAndCreate("tstRTHeapOffset", &hTest);
|
|---|
| 52 | if (rc)
|
|---|
| 53 | return rc;
|
|---|
| 54 | RTTestBanner(hTest);
|
|---|
| 55 |
|
|---|
| 56 | /*
|
|---|
| 57 | * Create a heap.
|
|---|
| 58 | */
|
|---|
| 59 | RTTestSub(hTest, "Basics");
|
|---|
| 60 | static uint8_t s_abMem[128*1024];
|
|---|
| 61 | RTHEAPOFFSET Heap;
|
|---|
| 62 | RTTESTI_CHECK_RC(rc = RTHeapOffsetInit(&Heap, &s_abMem[1], sizeof(s_abMem) - 1), VINF_SUCCESS);
|
|---|
| 63 | if (RT_FAILURE(rc))
|
|---|
| 64 | return RTTestSummaryAndDestroy(hTest);
|
|---|
| 65 |
|
|---|
| 66 | /*
|
|---|
| 67 | * Try allocate.
|
|---|
| 68 | */
|
|---|
| 69 | static struct TstHeapOffsetOps
|
|---|
| 70 | {
|
|---|
| 71 | size_t cb;
|
|---|
| 72 | unsigned uAlignment;
|
|---|
| 73 | void *pvAlloc;
|
|---|
| 74 | unsigned iFreeOrder;
|
|---|
| 75 | } s_aOps[] =
|
|---|
| 76 | {
|
|---|
| 77 | { 16, 0, NULL, 0 }, // 0
|
|---|
| 78 | { 16, 4, NULL, 1 },
|
|---|
| 79 | { 16, 8, NULL, 2 },
|
|---|
| 80 | { 16, 16, NULL, 5 },
|
|---|
| 81 | { 16, 32, NULL, 4 },
|
|---|
| 82 | { 32, 0, NULL, 3 }, // 5
|
|---|
| 83 | { 31, 0, NULL, 6 },
|
|---|
| 84 | { 1024, 0, NULL, 8 },
|
|---|
| 85 | { 1024, 32, NULL, 10 },
|
|---|
| 86 | { 1024, 32, NULL, 12 },
|
|---|
| 87 | { PAGE_SIZE, PAGE_SIZE, NULL, 13 }, // 10
|
|---|
| 88 | { 1024, 32, NULL, 9 },
|
|---|
| 89 | { PAGE_SIZE, 32, NULL, 11 },
|
|---|
| 90 | { PAGE_SIZE, PAGE_SIZE, NULL, 14 },
|
|---|
| 91 | { 16, 0, NULL, 15 },
|
|---|
| 92 | { 9, 0, NULL, 7 }, // 15
|
|---|
| 93 | { 16, 0, NULL, 7 },
|
|---|
| 94 | { 36, 0, NULL, 7 },
|
|---|
| 95 | { 16, 0, NULL, 7 },
|
|---|
| 96 | { 12344, 0, NULL, 7 },
|
|---|
| 97 | { 50, 0, NULL, 7 }, // 20
|
|---|
| 98 | { 16, 0, NULL, 7 },
|
|---|
| 99 | };
|
|---|
| 100 | unsigned i;
|
|---|
| 101 | RTHeapOffsetDump(Heap, (PFNRTHEAPOFFSETPRINTF)RTPrintf); /** @todo Add some detail info output with a signature identical to RTPrintf. */
|
|---|
| 102 | size_t cbBefore = RTHeapOffsetGetFreeSize(Heap);
|
|---|
| 103 | static char szFill[] = "01234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
|
|---|
| 104 |
|
|---|
| 105 | /* allocate */
|
|---|
| 106 | for (i = 0; i < RT_ELEMENTS(s_aOps); i++)
|
|---|
| 107 | {
|
|---|
| 108 | s_aOps[i].pvAlloc = RTHeapOffsetAlloc(Heap, s_aOps[i].cb, s_aOps[i].uAlignment);
|
|---|
| 109 | RTTESTI_CHECK_MSG(s_aOps[i].pvAlloc, ("RTHeapOffsetAlloc(%p, %#x, %#x,) -> NULL i=%d\n", (void *)Heap, s_aOps[i].cb, s_aOps[i].uAlignment, i));
|
|---|
| 110 | if (!s_aOps[i].pvAlloc)
|
|---|
| 111 | return RTTestSummaryAndDestroy(hTest);
|
|---|
| 112 |
|
|---|
| 113 | memset(s_aOps[i].pvAlloc, szFill[i], s_aOps[i].cb);
|
|---|
| 114 | RTTESTI_CHECK_MSG(RT_ALIGN_P(s_aOps[i].pvAlloc, (s_aOps[i].uAlignment ? s_aOps[i].uAlignment : 8)) == s_aOps[i].pvAlloc,
|
|---|
| 115 | ("RTHeapOffsetAlloc(%p, %#x, %#x,) -> %p\n", (void *)Heap, s_aOps[i].cb, s_aOps[i].uAlignment, i));
|
|---|
| 116 | if (!s_aOps[i].pvAlloc)
|
|---|
| 117 | return RTTestSummaryAndDestroy(hTest);
|
|---|
| 118 | }
|
|---|
| 119 |
|
|---|
| 120 | /* free and allocate the same node again. */
|
|---|
| 121 | for (i = 0; i < RT_ELEMENTS(s_aOps); i++)
|
|---|
| 122 | {
|
|---|
| 123 | if (!s_aOps[i].pvAlloc)
|
|---|
| 124 | continue;
|
|---|
| 125 | //RTPrintf("debug: i=%d pv=%#x cb=%#zx align=%#zx cbReal=%#zx\n", i, s_aOps[i].pvAlloc,
|
|---|
| 126 | // s_aOps[i].cb, s_aOps[i].uAlignment, RTHeapOffsetSize(Heap, s_aOps[i].pvAlloc));
|
|---|
| 127 | size_t cbBeforeSub = RTHeapOffsetGetFreeSize(Heap);
|
|---|
| 128 | RTHeapOffsetFree(Heap, s_aOps[i].pvAlloc);
|
|---|
| 129 | size_t cbAfterSubFree = RTHeapOffsetGetFreeSize(Heap);
|
|---|
| 130 |
|
|---|
| 131 | void *pv;
|
|---|
| 132 | pv = RTHeapOffsetAlloc(Heap, s_aOps[i].cb, s_aOps[i].uAlignment);
|
|---|
| 133 | RTTESTI_CHECK_MSG(pv, ("RTHeapOffsetAlloc(%p, %#x, %#x,) -> NULL i=%d\n", (void *)Heap, s_aOps[i].cb, s_aOps[i].uAlignment, i));
|
|---|
| 134 | if (!pv)
|
|---|
| 135 | return RTTestSummaryAndDestroy(hTest);
|
|---|
| 136 | //RTPrintf("debug: i=%d pv=%p cbReal=%#zx cbBeforeSub=%#zx cbAfterSubFree=%#zx cbAfterSubAlloc=%#zx \n", i, pv, RTHeapOffsetSize(Heap, pv),
|
|---|
| 137 | // cbBeforeSub, cbAfterSubFree, RTHeapOffsetGetFreeSize(Heap));
|
|---|
| 138 |
|
|---|
| 139 | if (pv != s_aOps[i].pvAlloc)
|
|---|
| 140 | RTTestIPrintf(RTTESTLVL_ALWAYS, "Warning: Free+Alloc returned different address. new=%p old=%p i=%d\n", pv, s_aOps[i].pvAlloc, i);
|
|---|
| 141 | s_aOps[i].pvAlloc = pv;
|
|---|
| 142 | size_t cbAfterSubAlloc = RTHeapOffsetGetFreeSize(Heap);
|
|---|
| 143 | if (cbBeforeSub != cbAfterSubAlloc)
|
|---|
| 144 | {
|
|---|
| 145 | RTTestIPrintf(RTTESTLVL_ALWAYS, "Warning: cbBeforeSub=%#zx cbAfterSubFree=%#zx cbAfterSubAlloc=%#zx. i=%d\n",
|
|---|
| 146 | cbBeforeSub, cbAfterSubFree, cbAfterSubAlloc, i);
|
|---|
| 147 | //return 1; - won't work correctly until we start creating free block instead of donating memory on alignment.
|
|---|
| 148 | }
|
|---|
| 149 | }
|
|---|
| 150 |
|
|---|
| 151 | /* make a copy of the heap and the to-be-freed list. */
|
|---|
| 152 | static uint8_t s_abMemCopy[sizeof(s_abMem)];
|
|---|
| 153 | memcpy(s_abMemCopy, s_abMem, sizeof(s_abMem));
|
|---|
| 154 | uintptr_t offDelta = (uintptr_t)&s_abMemCopy[0] - (uintptr_t)&s_abMem[0];
|
|---|
| 155 | RTHEAPOFFSET hHeapCopy = (RTHEAPOFFSET)((uintptr_t)Heap + offDelta);
|
|---|
| 156 | static struct TstHeapOffsetOps s_aOpsCopy[RT_ELEMENTS(s_aOps)];
|
|---|
| 157 | memcpy(&s_aOpsCopy[0], &s_aOps[0], sizeof(s_aOps));
|
|---|
| 158 |
|
|---|
| 159 | /* free it in a specific order. */
|
|---|
| 160 | int cFreed = 0;
|
|---|
| 161 | for (i = 0; i < RT_ELEMENTS(s_aOps); i++)
|
|---|
| 162 | {
|
|---|
| 163 | unsigned j;
|
|---|
| 164 | for (j = 0; j < RT_ELEMENTS(s_aOps); j++)
|
|---|
| 165 | {
|
|---|
| 166 | if ( s_aOps[j].iFreeOrder != i
|
|---|
| 167 | || !s_aOps[j].pvAlloc)
|
|---|
| 168 | continue;
|
|---|
| 169 | //RTPrintf("j=%d i=%d free=%d cb=%d pv=%p\n", j, i, RTHeapOffsetGetFreeSize(Heap), s_aOps[j].cb, s_aOps[j].pvAlloc);
|
|---|
| 170 | RTHeapOffsetFree(Heap, s_aOps[j].pvAlloc);
|
|---|
| 171 | s_aOps[j].pvAlloc = NULL;
|
|---|
| 172 | cFreed++;
|
|---|
| 173 | }
|
|---|
| 174 | }
|
|---|
| 175 | RTTESTI_CHECK(cFreed == RT_ELEMENTS(s_aOps));
|
|---|
| 176 | RTTestIPrintf(RTTESTLVL_ALWAYS, "i=done free=%d\n", RTHeapOffsetGetFreeSize(Heap));
|
|---|
| 177 |
|
|---|
| 178 | /* check that we're back at the right amount of free memory. */
|
|---|
| 179 | size_t cbAfter = RTHeapOffsetGetFreeSize(Heap);
|
|---|
| 180 | if (cbBefore != cbAfter)
|
|---|
| 181 | {
|
|---|
| 182 | RTTestIPrintf(RTTESTLVL_ALWAYS,
|
|---|
| 183 | "Warning: Either we've split out an alignment chunk at the start, or we've got\n"
|
|---|
| 184 | " an alloc/free accounting bug: cbBefore=%d cbAfter=%d\n", cbBefore, cbAfter);
|
|---|
| 185 | RTHeapOffsetDump(Heap, (PFNRTHEAPOFFSETPRINTF)RTPrintf);
|
|---|
| 186 | }
|
|---|
| 187 |
|
|---|
| 188 | /* relocate and free the bits in heap2 now. */
|
|---|
| 189 | RTTestSub(hTest, "Relocated Heap");
|
|---|
| 190 | /* free it in a specific order. */
|
|---|
| 191 | int cFreed2 = 0;
|
|---|
| 192 | for (i = 0; i < RT_ELEMENTS(s_aOpsCopy); i++)
|
|---|
| 193 | {
|
|---|
| 194 | unsigned j;
|
|---|
| 195 | for (j = 0; j < RT_ELEMENTS(s_aOpsCopy); j++)
|
|---|
| 196 | {
|
|---|
| 197 | if ( s_aOpsCopy[j].iFreeOrder != i
|
|---|
| 198 | || !s_aOpsCopy[j].pvAlloc)
|
|---|
| 199 | continue;
|
|---|
| 200 | //RTPrintf("j=%d i=%d free=%d cb=%d pv=%p\n", j, i, RTHeapOffsetGetFreeSize(hHeapCopy), s_aOpsCopy[j].cb, s_aOpsCopy[j].pvAlloc);
|
|---|
| 201 | RTHeapOffsetFree(hHeapCopy, (uint8_t *)s_aOpsCopy[j].pvAlloc + offDelta);
|
|---|
| 202 | s_aOpsCopy[j].pvAlloc = NULL;
|
|---|
| 203 | cFreed2++;
|
|---|
| 204 | }
|
|---|
| 205 | }
|
|---|
| 206 | RTTESTI_CHECK(cFreed2 == RT_ELEMENTS(s_aOpsCopy));
|
|---|
| 207 |
|
|---|
| 208 | /* check that we're back at the right amount of free memory. */
|
|---|
| 209 | size_t cbAfterCopy = RTHeapOffsetGetFreeSize(hHeapCopy);
|
|---|
| 210 | RTTESTI_CHECK_MSG(cbAfterCopy == cbAfter, ("cbAfterCopy=%zu cbAfter=%zu\n", cbAfterCopy, cbAfter));
|
|---|
| 211 |
|
|---|
| 212 |
|
|---|
| 213 | return RTTestSummaryAndDestroy(hTest);
|
|---|
| 214 | }
|
|---|
| 215 |
|
|---|
