| 1 | /* $Id $ */
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| 2 | /** @file
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| 3 | * IPRT Testcase - Simple Heap.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | *
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| 26 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 28 | * additional information or have any questions.
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| 29 | */
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| 30 |
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| 31 | /*******************************************************************************
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| 32 | * Header Files *
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| 33 | *******************************************************************************/
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| 34 | #include <iprt/heap.h>
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| 35 | #include <iprt/initterm.h>
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| 36 | #include <iprt/err.h>
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| 37 | #include <iprt/stream.h>
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| 38 | #include <iprt/string.h>
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| 39 | #include <iprt/param.h>
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| 40 | #include <iprt/assert.h>
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| 41 |
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| 42 |
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| 43 | int main(int argc, char *argv[])
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| 44 | {
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| 45 | /*
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| 46 | * Init runtime.
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| 47 | */
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| 48 | int rc = RTR3Init();
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| 49 | if (RT_FAILURE(rc))
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| 50 | {
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| 51 | RTPrintf("RTR3Init failed: %Vrc\n", rc);
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| 52 | return 1;
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| 53 | }
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| 54 | RTPrintf("tstHeapSimple: TESTING...\n");
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| 55 |
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| 56 | /*
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| 57 | * Create a heap.
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| 58 | */
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| 59 | static uint8_t s_abMem[128*1024];
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| 60 | RTHEAPSIMPLE Heap;
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| 61 | rc = RTHeapSimpleInit(&Heap, &s_abMem[1], sizeof(s_abMem) - 1);
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| 62 | if (RT_FAILURE(rc))
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| 63 | {
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| 64 | RTPrintf("RTHeapSimpleInit failed: %Vrc\n", rc);
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| 65 | return 1;
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| 66 | }
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| 67 |
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| 68 | /*
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| 69 | * Try allocate.
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| 70 | */
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| 71 | static struct
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| 72 | {
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| 73 | size_t cb;
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| 74 | unsigned uAlignment;
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| 75 | void *pvAlloc;
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| 76 | unsigned iFreeOrder;
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| 77 | } aOps[] =
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| 78 | {
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| 79 | { 16, 0, NULL, 0 }, // 0
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| 80 | { 16, 4, NULL, 1 },
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| 81 | { 16, 8, NULL, 2 },
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| 82 | { 16, 16, NULL, 5 },
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| 83 | { 16, 32, NULL, 4 },
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| 84 | { 32, 0, NULL, 3 }, // 5
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| 85 | { 31, 0, NULL, 6 },
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| 86 | { 1024, 0, NULL, 8 },
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| 87 | { 1024, 32, NULL, 10 },
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| 88 | { 1024, 32, NULL, 12 },
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| 89 | { PAGE_SIZE, PAGE_SIZE, NULL, 13 }, // 10
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| 90 | { 1024, 32, NULL, 9 },
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| 91 | { PAGE_SIZE, 32, NULL, 11 },
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| 92 | { PAGE_SIZE, PAGE_SIZE, NULL, 14 },
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| 93 | { 16, 0, NULL, 15 },
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| 94 | { 9, 0, NULL, 7 }, // 15
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| 95 | { 16, 0, NULL, 7 },
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| 96 | { 36, 0, NULL, 7 },
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| 97 | { 16, 0, NULL, 7 },
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| 98 | { 12344, 0, NULL, 7 },
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| 99 | { 50, 0, NULL, 7 }, // 20
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| 100 | { 16, 0, NULL, 7 },
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| 101 | };
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| 102 | unsigned i;
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| 103 | RTHeapSimpleDump(Heap, (PFNRTHEAPSIMPLEPRINTF)RTPrintf);
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| 104 | size_t cbBefore = RTHeapSimpleGetFreeSize(Heap);
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| 105 | static char szFill[] = "01234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
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| 106 |
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| 107 | /* allocate */
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| 108 | for (i = 0; i < ELEMENTS(aOps); i++)
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| 109 | {
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| 110 | aOps[i].pvAlloc = RTHeapSimpleAlloc(Heap, aOps[i].cb, aOps[i].uAlignment);
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| 111 | if (!aOps[i].pvAlloc)
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| 112 | {
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| 113 | RTPrintf("Failure: RTHeapSimpleAlloc(%p, %#x, %#x,) -> NULL i=%d\n", (void *)Heap, aOps[i].cb, aOps[i].uAlignment, i);
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| 114 | return 1;
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| 115 | }
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| 116 | memset(aOps[i].pvAlloc, szFill[i], aOps[i].cb);
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| 117 | if (RT_ALIGN_P(aOps[i].pvAlloc, (aOps[i].uAlignment ? aOps[i].uAlignment : 8)) != aOps[i].pvAlloc)
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| 118 | {
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| 119 | RTPrintf("Failure: RTHeapSimpleAlloc(%p, %#x, %#x,) -> %p\n", (void *)Heap, aOps[i].cb, aOps[i].uAlignment, i);
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| 120 | return 1;
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| 121 | }
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| 122 | }
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| 123 |
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| 124 | /* free and allocate the same node again. */
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| 125 | for (i = 0; i < ELEMENTS(aOps); i++)
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| 126 | {
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| 127 | if (!aOps[i].pvAlloc)
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| 128 | continue;
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| 129 | //RTPrintf("debug: i=%d pv=%#x cb=%#zx align=%#zx cbReal=%#zx\n", i, aOps[i].pvAlloc,
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| 130 | // aOps[i].cb, aOps[i].uAlignment, RTHeapSimpleSize(Heap, aOps[i].pvAlloc));
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| 131 | size_t cbBeforeSub = RTHeapSimpleGetFreeSize(Heap);
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| 132 | RTHeapSimpleFree(Heap, aOps[i].pvAlloc);
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| 133 | size_t cbAfterSubFree = RTHeapSimpleGetFreeSize(Heap);
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| 134 |
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| 135 | void *pv;
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| 136 | pv = RTHeapSimpleAlloc(Heap, aOps[i].cb, aOps[i].uAlignment);
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| 137 | if (!pv)
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| 138 | {
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| 139 | RTPrintf("Failure: RTHeapSimpleAlloc(%p, %#x, %#x,) -> NULL i=%d\n", (void *)Heap, aOps[i].cb, aOps[i].uAlignment, i);
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| 140 | return 1;
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| 141 | }
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| 142 | //RTPrintf("debug: i=%d pv=%p cbReal=%#zx cbBeforeSub=%#zx cbAfterSubFree=%#zx cbAfterSubAlloc=%#zx \n", i, pv, RTHeapSimpleSize(Heap, pv),
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| 143 | // cbBeforeSub, cbAfterSubFree, RTHeapSimpleGetFreeSize(Heap));
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| 144 | if (pv != aOps[i].pvAlloc)
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| 145 | RTPrintf("Warning: Free+Alloc returned different address. new=%p old=%p i=%d\n", pv, aOps[i].pvAlloc, i);
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| 146 | aOps[i].pvAlloc = pv;
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| 147 | size_t cbAfterSubAlloc = RTHeapSimpleGetFreeSize(Heap);
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| 148 | if (cbBeforeSub != cbAfterSubAlloc)
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| 149 | {
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| 150 | RTPrintf("Warning: cbBeforeSub=%#zx cbAfterSubFree=%#zx cbAfterSubAlloc=%#zx. i=%d\n",
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| 151 | cbBeforeSub, cbAfterSubFree, cbAfterSubAlloc, i);
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| 152 | //return 1; - won't work correctly until we start creating free block instead of donating memory on alignment.
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| 153 | }
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| 154 | }
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| 155 |
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| 156 | /* free it in a specific order. */
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| 157 | int cFreed = 0;
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| 158 | for (i = 0; i < ELEMENTS(aOps); i++)
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| 159 | {
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| 160 | unsigned j;
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| 161 | for (j = 0; j < ELEMENTS(aOps); j++)
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| 162 | {
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| 163 | if ( aOps[j].iFreeOrder != i
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| 164 | || !aOps[j].pvAlloc)
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| 165 | continue;
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| 166 | //RTPrintf("j=%d i=%d free=%d cb=%d pv=%p\n", j, i, RTHeapSimpleGetFreeSize(Heap), aOps[j].cb, aOps[j].pvAlloc);
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| 167 | RTHeapSimpleFree(Heap, aOps[j].pvAlloc);
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| 168 | aOps[j].pvAlloc = NULL;
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| 169 | cFreed++;
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| 170 | }
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| 171 | }
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| 172 | Assert(cFreed == RT_ELEMENTS(aOps));
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| 173 | RTPrintf("i=done free=%d\n", RTHeapSimpleGetFreeSize(Heap));
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| 174 |
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| 175 | /* check that we're back at the right amount of free memory. */
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| 176 | size_t cbAfter = RTHeapSimpleGetFreeSize(Heap);
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| 177 | if (cbBefore != cbAfter)
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| 178 | {
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| 179 | RTPrintf("Warning: Either we've split out an alignment chunk at the start, or we've got\n"
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| 180 | " an alloc/free accounting bug: cbBefore=%d cbAfter=%d\n", cbBefore, cbAfter);
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| 181 | RTHeapSimpleDump(Heap, (PFNRTHEAPSIMPLEPRINTF)RTPrintf);
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| 182 | }
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| 183 |
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| 184 | RTPrintf("tstHeapSimple: Success\n");
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| 185 | #ifdef LOG_ENABLED
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| 186 | RTLogFlush(NULL);
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| 187 | #endif
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| 188 | return 0;
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| 189 | }
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