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annotate src/memfile_test.c @ 7347:8977b399cf55 v7.4.979

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commit https://github.com/vim/vim/commit/4a8c2cfc56b9affc36934aa0f20d8cfd2b1511c8 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Dec 19 15:28:18 2015 +0100 patch 7.4.979 Problem: When changing the crypt key the blocks read from disk are not decrypted. Solution: Also call ml_decrypt_data() when mf_old_key is set. (Ken Takata)
author Christian Brabandt <cb@256bit.org>
date Sat, 19 Dec 2015 15:30:04 +0100
parents afb476746692
children 37c929c4a073
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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2732
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1 /* vi:set ts=8 sts=4 sw=4:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 * See README.txt for an overview of the Vim source code.
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8 */
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9
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10 /*
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11 * memfile_test.c: Unittests for memfile.c
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12 * Mostly by Ivan Krasilnikov.
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13 */
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14
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15 #undef NDEBUG
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16 #include <assert.h>
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17
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18 /* Must include main.c because it contains much more than just main() */
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19 #define NO_VIM_MAIN
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20 #include "main.c"
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21
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22 /* This file has to be included because the tested functions are static */
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23 #include "memfile.c"
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24
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25 #define index_to_key(i) ((i) ^ 15167)
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26 #define TEST_COUNT 50000
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27
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28 static void test_mf_hash __ARGS((void));
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29
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30 /*
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31 * Test mf_hash_*() functions.
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32 */
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33 static void
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34 test_mf_hash()
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35 {
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36 mf_hashtab_T ht;
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37 mf_hashitem_T *item;
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38 blocknr_T key;
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39 long_u i;
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40 long_u num_buckets;
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41
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42 mf_hash_init(&ht);
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43
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44 /* insert some items and check invariants */
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45 for (i = 0; i < TEST_COUNT; i++)
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46 {
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47 assert(ht.mht_count == i);
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48
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49 /* check that number of buckets is a power of 2 */
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50 num_buckets = ht.mht_mask + 1;
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51 assert(num_buckets > 0 && (num_buckets & (num_buckets - 1)) == 0);
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52
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53 /* check load factor */
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54 assert(ht.mht_count <= (num_buckets << MHT_LOG_LOAD_FACTOR));
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55
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56 if (i < (MHT_INIT_SIZE << MHT_LOG_LOAD_FACTOR))
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57 {
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58 /* first expansion shouldn't have occurred yet */
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59 assert(num_buckets == MHT_INIT_SIZE);
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60 assert(ht.mht_buckets == ht.mht_small_buckets);
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61 }
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62 else
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63 {
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64 assert(num_buckets > MHT_INIT_SIZE);
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65 assert(ht.mht_buckets != ht.mht_small_buckets);
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66 }
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67
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68 key = index_to_key(i);
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69 assert(mf_hash_find(&ht, key) == NULL);
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70
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71 /* allocate and add new item */
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72 item = (mf_hashitem_T *)lalloc_clear(sizeof(mf_hashtab_T), FALSE);
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73 assert(item != NULL);
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74 item->mhi_key = key;
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75 mf_hash_add_item(&ht, item);
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76
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77 assert(mf_hash_find(&ht, key) == item);
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78
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79 if (ht.mht_mask + 1 != num_buckets)
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80 {
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81 /* hash table was expanded */
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82 assert(ht.mht_mask + 1 == num_buckets * MHT_GROWTH_FACTOR);
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83 assert(i + 1 == (num_buckets << MHT_LOG_LOAD_FACTOR));
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84 }
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85 }
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86
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87 /* check presence of inserted items */
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88 for (i = 0; i < TEST_COUNT; i++)
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89 {
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90 key = index_to_key(i);
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91 item = mf_hash_find(&ht, key);
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92 assert(item != NULL);
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93 assert(item->mhi_key == key);
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94 }
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95
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96 /* delete some items */
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97 for (i = 0; i < TEST_COUNT; i++)
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98 {
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99 if (i % 100 < 70)
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100 {
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101 key = index_to_key(i);
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102 item = mf_hash_find(&ht, key);
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103 assert(item != NULL);
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104 assert(item->mhi_key == key);
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105
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106 mf_hash_rem_item(&ht, item);
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107 assert(mf_hash_find(&ht, key) == NULL);
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108
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109 mf_hash_add_item(&ht, item);
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110 assert(mf_hash_find(&ht, key) == item);
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111
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112 mf_hash_rem_item(&ht, item);
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113 assert(mf_hash_find(&ht, key) == NULL);
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114
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115 vim_free(item);
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116 }
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117 }
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118
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119 /* check again */
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120 for (i = 0; i < TEST_COUNT; i++)
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121 {
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122 key = index_to_key(i);
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123 item = mf_hash_find(&ht, key);
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124
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125 if (i % 100 < 70)
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126 {
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127 assert(item == NULL);
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128 }
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129 else
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130 {
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131 assert(item != NULL);
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132 assert(item->mhi_key == key);
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133 }
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134 }
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135
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136 /* free hash table and all remaining items */
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137 mf_hash_free_all(&ht);
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138 }
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139
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140 int
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141 main()
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142 {
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143 test_mf_hash();
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144 return 0;
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145 }