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add iterator documentation
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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/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 | TEST(Mempool, Create) { |
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34 | auto pool = cxBasicMempoolCreate(16); |
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35 | ASSERT_EQ(pool->auto_destr, nullptr); |
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36 | ASSERT_NE(pool->allocator, nullptr); |
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37 | ASSERT_NE(pool->allocator->cl, nullptr); |
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38 | EXPECT_EQ(pool->allocator->data, pool); |
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39 | EXPECT_NE(pool->allocator->cl->malloc, nullptr); |
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40 | EXPECT_NE(pool->allocator->cl->calloc, nullptr); |
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41 | EXPECT_NE(pool->allocator->cl->realloc, nullptr); |
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42 | EXPECT_NE(pool->allocator->cl->free, nullptr); |
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43 | EXPECT_EQ(pool->capacity, 16); |
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44 | EXPECT_EQ(pool->size, 0); |
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45 | EXPECT_NE(pool->data, nullptr); |
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46 | cxMempoolDestroy(pool); |
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47 | } |
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48 | |
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49 | TEST(Mempool, malloc) { |
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50 | auto pool = cxBasicMempoolCreate(4); |
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51 | EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr); |
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52 | EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr); |
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53 | EXPECT_EQ(pool->size, 2); |
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54 | EXPECT_EQ(pool->capacity, 4); |
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55 | EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr); |
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56 | EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr); |
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57 | EXPECT_EQ(pool->size, 4); |
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58 | EXPECT_EQ(pool->capacity, 4); |
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59 | EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr); |
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60 | EXPECT_NE(cxMalloc(pool->allocator, sizeof(int)), nullptr); |
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61 | EXPECT_EQ(pool->size, 6); |
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62 | EXPECT_GE(pool->capacity, 6); |
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63 | cxMempoolDestroy(pool); |
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64 | } |
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65 | |
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66 | TEST(Mempool, calloc) { |
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67 | auto pool = cxBasicMempoolCreate(4); |
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68 | |
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69 | auto test = (int *) cxCalloc(pool->allocator, 2, sizeof(int)); |
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70 | ASSERT_NE(test, nullptr); |
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71 | EXPECT_EQ(test[0], 0); |
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72 | EXPECT_EQ(test[1], 0); |
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73 | cxMempoolDestroy(pool); |
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74 | } |
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75 | |
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76 | static unsigned test_destructor_called; |
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77 | |
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78 | static void test_destructor([[maybe_unused]] void *mem) { |
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79 | test_destructor_called++; |
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80 | } |
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81 | |
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82 | TEST(Mempool, realloc) { |
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83 | auto pool = cxMempoolCreate(4, test_destructor); |
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84 | ASSERT_EQ(pool->auto_destr, test_destructor); |
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85 | auto data = cxMalloc(pool->allocator, sizeof(int)); |
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86 | *((int *) data) = 13; |
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87 | |
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88 | void *rdata = data; |
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89 | unsigned n = 1; |
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90 | while (rdata == data) { |
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91 | n <<= 1; |
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92 | ASSERT_LT(n, 65536); // eventually the memory should be moved elsewhere |
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93 | rdata = cxRealloc(pool->allocator, data, n * sizeof(intptr_t)); |
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94 | } |
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95 | |
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96 | EXPECT_EQ(*((int *) rdata), 13); |
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97 | // test if destructor is still intact |
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98 | test_destructor_called = 0; |
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99 | cxFree(pool->allocator, rdata); |
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100 | EXPECT_EQ(test_destructor_called, 1); |
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101 | cxMempoolDestroy(pool); |
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102 | } |
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103 | |
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104 | |
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105 | TEST(Mempool, free) { |
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106 | auto pool = cxBasicMempoolCreate(4); |
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107 | |
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108 | void *mem1; |
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109 | void *mem2; |
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110 | |
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111 | mem1 = cxMalloc(pool->allocator, 16); |
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112 | cxFree(pool->allocator, mem1); |
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113 | EXPECT_EQ(pool->size, 0); |
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114 | |
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115 | cxMalloc(pool->allocator, 16); |
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116 | cxMalloc(pool->allocator, 16); |
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117 | mem1 = cxMalloc(pool->allocator, 16); |
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118 | cxMalloc(pool->allocator, 16); |
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119 | mem2 = cxMalloc(pool->allocator, 16); |
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120 | |
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121 | EXPECT_EQ(pool->size, 5); |
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122 | cxFree(pool->allocator, mem1); |
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123 | EXPECT_EQ(pool->size, 4); |
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124 | cxFree(pool->allocator, mem2); |
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125 | EXPECT_EQ(pool->size, 3); |
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126 | cxMempoolDestroy(pool); |
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127 | } |
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128 | |
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129 | TEST(Mempool, Destroy) { |
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130 | auto pool = cxBasicMempoolCreate(4); |
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131 | auto data = cxMalloc(pool->allocator, sizeof(int)); |
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132 | *((int *) data) = 13; |
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133 | cxMempoolSetDestructor(data, test_destructor); |
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134 | EXPECT_EQ(*((int *) data), 13); |
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135 | test_destructor_called = 0; |
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136 | cxFree(pool->allocator, data); |
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137 | EXPECT_EQ(test_destructor_called, 1); |
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138 | data = cxMalloc(pool->allocator, sizeof(int)); |
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139 | cxMempoolSetDestructor(data, test_destructor); |
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140 | cxMempoolDestroy(pool); |
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141 | EXPECT_EQ(test_destructor_called, 2); |
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142 | } |
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143 | |
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144 | TEST(Mempool, Register) { |
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145 | auto pool = cxBasicMempoolCreate(4); |
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146 | auto data = cxMalloc(pool->allocator, sizeof(int)); |
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147 | test_destructor_called = 0; |
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148 | cxMempoolSetDestructor(data, test_destructor); |
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149 | int donotfree = 0; |
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150 | cxMempoolRegister(pool, &donotfree, test_destructor); |
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151 | cxMempoolDestroy(pool); |
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152 | EXPECT_EQ(test_destructor_called, 2); |
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153 | } |