test/test_basic_mempool.cpp

Sun, 20 Nov 2022 17:48:42 +0100

author
Mike Becker <universe@uap-core.de>
date
Sun, 20 Nov 2022 17:48:42 +0100
changeset 627
cc8cbabd27cd
parent 572
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permissions
-rw-r--r--

fix cx_array_copy() unintentionally shrinking the array

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include "cx/basic_mempool.h"
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30 #include "util_allocator.h"
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31 #include <gtest/gtest.h>
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32
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33 class CxBasicMempool : public ::testing::Test {
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34 protected:
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35 CxMempool *pool = nullptr;
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36
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37 void TearDown() override {
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38 if (pool != nullptr) {
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39 cxMempoolDestroy(pool);
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40 }
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41 }
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42 };
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43
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44 TEST_F(CxBasicMempool, Create) {
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45 pool = cxBasicMempoolCreate(16);
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46 ASSERT_NE(pool->allocator, nullptr);
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47 ASSERT_NE(pool->cl, nullptr);
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48 EXPECT_NE(pool->cl->destroy, nullptr);
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49 ASSERT_NE(pool->allocator->cl, nullptr);
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50 EXPECT_EQ(pool->allocator->data, pool);
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51 EXPECT_NE(pool->allocator->cl->malloc, nullptr);
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52 EXPECT_NE(pool->allocator->cl->calloc, nullptr);
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53 EXPECT_NE(pool->allocator->cl->realloc, nullptr);
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54 EXPECT_NE(pool->allocator->cl->free, nullptr);
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55
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56 auto basic_pool = reinterpret_cast<cx_basic_mempool_s *>(pool);
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57 EXPECT_EQ(basic_pool->size, 16);
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58 EXPECT_EQ(basic_pool->ndata, 0);
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59 EXPECT_NE(basic_pool->data, nullptr);
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60 }
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61
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62 TEST_F(CxBasicMempool, malloc) {
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63 pool = cxBasicMempoolCreate(4);
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64 auto basic_pool = reinterpret_cast<cx_basic_mempool_s *>(pool);
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65 EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr);
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66 EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr);
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67 EXPECT_EQ(basic_pool->ndata, 2);
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68 EXPECT_EQ(basic_pool->size, 4);
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69 EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr);
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70 EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr);
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71 EXPECT_EQ(basic_pool->ndata, 4);
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72 EXPECT_EQ(basic_pool->size, 4);
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73 EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr);
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74 EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr);
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75 EXPECT_EQ(basic_pool->ndata, 6);
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76 EXPECT_GE(basic_pool->size, 6);
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77 }
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78
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79 TEST_F(CxBasicMempool, calloc) {
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80 pool = cxBasicMempoolCreate(4);
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81
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82 auto test = (int *) cxCalloc(pool->allocator, 2, sizeof(int));
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83 ASSERT_NE(test, nullptr);
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84 EXPECT_EQ(test[0], 0);
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85 EXPECT_EQ(test[1], 0);
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86 }
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87
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88 static unsigned test_destructor_called = 0;
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89
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90 static void test_destructor([[maybe_unused]] void *mem) {
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91 test_destructor_called++;
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92 }
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93
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94 TEST_F(CxBasicMempool, destructor) {
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95 pool = cxBasicMempoolCreate(4);
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96 auto data = cxMalloc(pool->allocator, sizeof(int));
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97 *((int *) data) = 13;
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98 cxMempoolSetDestructor(pool, data, test_destructor);
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99 EXPECT_EQ(*((int *) data), 13);
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100 test_destructor_called = 0;
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101 cxFree(pool->allocator, data);
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102 EXPECT_EQ(test_destructor_called, 1);
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103 data = cxMalloc(pool->allocator, sizeof(int));
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104 cxMempoolSetDestructor(pool, data, test_destructor);
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105 cxMempoolDestroy(pool);
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106 pool = nullptr;
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107 EXPECT_EQ(test_destructor_called, 2);
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108 }
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109
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110 TEST_F(CxBasicMempool, realloc) {
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111 pool = cxBasicMempoolCreate(4);
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112 auto data = cxMalloc(pool->allocator, sizeof(int));
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113 *((int *) data) = 13;
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114 cxMempoolSetDestructor(pool, data, test_destructor);
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115
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116 void *rdata = data;
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117 unsigned n = 1;
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118 while (rdata == data) {
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119 n <<= 1;
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120 ASSERT_LT(n, 65536); // eventually the memory should be moved elsewhere
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121 rdata = cxRealloc(pool->allocator, data, n * sizeof(intptr_t));
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122 }
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123
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124 EXPECT_EQ(*((int *) rdata), 13);
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125 // test if destructor is still intact
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126 test_destructor_called = 0;
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127 cxFree(pool->allocator, rdata);
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128 EXPECT_EQ(test_destructor_called, 1);
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129 }
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130
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131
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132 TEST_F(CxBasicMempool, free) {
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133 pool = cxBasicMempoolCreate(4);
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134 auto basic_pool = reinterpret_cast<cx_basic_mempool_s *>(pool);
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135
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136 void *mem1;
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137 void *mem2;
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138
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139 mem1 = cxMalloc(pool->allocator, 16);
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140 cxFree(pool->allocator, mem1);
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141 EXPECT_EQ(basic_pool->ndata, 0);
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142
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143 cxMalloc(pool->allocator, 16);
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144 cxMalloc(pool->allocator, 16);
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145 mem1 = cxMalloc(pool->allocator, 16);
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146 cxMalloc(pool->allocator, 16);
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147 mem2 = cxMalloc(pool->allocator, 16);
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148
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149 EXPECT_EQ(basic_pool->ndata, 5);
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parents:
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150 cxFree(pool->allocator, mem1);
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151 EXPECT_EQ(basic_pool->ndata, 4);
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parents:
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152 cxFree(pool->allocator, mem2);
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153 EXPECT_EQ(basic_pool->ndata, 3);
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parents:
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154 }

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