1 | #include "test_timers.h"
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2 |
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3 | #include "lwip/def.h"
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4 | #include "lwip/timeouts.h"
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5 | #include "arch/sys_arch.h"
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6 |
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7 | /* Setups/teardown functions */
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8 |
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9 | static struct sys_timeo* old_list_head;
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10 |
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11 | static void
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12 | timers_setup(void)
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13 | {
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14 | struct sys_timeo** list_head = sys_timeouts_get_next_timeout();
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15 | old_list_head = *list_head;
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16 | *list_head = NULL;
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17 | }
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18 |
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19 | static void
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20 | timers_teardown(void)
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21 | {
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22 | struct sys_timeo** list_head = sys_timeouts_get_next_timeout();
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23 | *list_head = old_list_head;
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24 | lwip_sys_now = 0;
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25 | }
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26 |
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27 | static int fired[3];
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28 | static void
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29 | dummy_handler(void* arg)
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30 | {
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31 | int index = LWIP_PTR_NUMERIC_CAST(int, arg);
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32 | fired[index] = 1;
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33 | }
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34 |
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35 | #define HANDLER_EXECUTION_TIME 5
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36 | static int cyclic_fired;
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37 | static void
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38 | dummy_cyclic_handler(void)
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39 | {
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40 | cyclic_fired = 1;
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41 | lwip_sys_now += HANDLER_EXECUTION_TIME;
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42 | }
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43 |
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44 | struct lwip_cyclic_timer test_cyclic = {10, dummy_cyclic_handler};
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45 |
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46 | static void
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47 | do_test_cyclic_timers(u32_t offset)
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48 | {
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49 | struct sys_timeo** list_head = sys_timeouts_get_next_timeout();
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50 |
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51 | /* verify normal timer expiration */
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52 | lwip_sys_now = offset + 0;
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53 | sys_timeout(test_cyclic.interval_ms, lwip_cyclic_timer, &test_cyclic);
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54 |
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55 | cyclic_fired = 0;
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56 | sys_check_timeouts();
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57 | fail_unless(cyclic_fired == 0);
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58 |
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59 | lwip_sys_now = offset + test_cyclic.interval_ms;
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60 | sys_check_timeouts();
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61 | fail_unless(cyclic_fired == 1);
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62 |
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63 | fail_unless((*list_head)->time == (u32_t)(lwip_sys_now + test_cyclic.interval_ms - HANDLER_EXECUTION_TIME));
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64 |
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65 | sys_untimeout(lwip_cyclic_timer, &test_cyclic);
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66 |
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67 |
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68 | /* verify "overload" - next cyclic timer execution is already overdue twice */
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69 | lwip_sys_now = offset + 0;
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70 | sys_timeout(test_cyclic.interval_ms, lwip_cyclic_timer, &test_cyclic);
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71 |
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72 | cyclic_fired = 0;
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73 | sys_check_timeouts();
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74 | fail_unless(cyclic_fired == 0);
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75 |
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76 | lwip_sys_now = offset + 2*test_cyclic.interval_ms;
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77 | sys_check_timeouts();
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78 | fail_unless(cyclic_fired == 1);
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79 |
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80 | fail_unless((*list_head)->time == (u32_t)(lwip_sys_now + test_cyclic.interval_ms));
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81 | }
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82 |
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83 | START_TEST(test_cyclic_timers)
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84 | {
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85 | LWIP_UNUSED_ARG(_i);
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86 |
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87 | /* check without u32_t wraparound */
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88 | do_test_cyclic_timers(0);
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89 |
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90 | /* check with u32_t wraparound */
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91 | do_test_cyclic_timers(0xfffffff0);
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92 | }
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93 | END_TEST
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94 |
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95 | /* reproduce bug #52748: the bug in timeouts.c */
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96 | START_TEST(test_bug52748)
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97 | {
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98 | LWIP_UNUSED_ARG(_i);
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99 |
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100 | memset(&fired, 0, sizeof(fired));
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101 |
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102 | lwip_sys_now = 50;
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103 | sys_timeout(20, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
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104 | sys_timeout( 5, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2));
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105 |
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106 | lwip_sys_now = 55;
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107 | sys_check_timeouts();
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108 | fail_unless(fired[0] == 0);
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109 | fail_unless(fired[1] == 0);
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110 | fail_unless(fired[2] == 1);
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111 |
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112 | lwip_sys_now = 60;
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113 | sys_timeout(10, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1));
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114 | sys_check_timeouts();
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115 | fail_unless(fired[0] == 0);
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116 | fail_unless(fired[1] == 0);
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117 | fail_unless(fired[2] == 1);
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118 |
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119 | lwip_sys_now = 70;
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120 | sys_check_timeouts();
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121 | fail_unless(fired[0] == 1);
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122 | fail_unless(fired[1] == 1);
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123 | fail_unless(fired[2] == 1);
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124 | }
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125 | END_TEST
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126 |
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127 | static void
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128 | do_test_timers(u32_t offset)
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129 | {
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130 | struct sys_timeo** list_head = sys_timeouts_get_next_timeout();
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131 |
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132 | lwip_sys_now = offset + 0;
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133 |
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134 | sys_timeout(10, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
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135 | fail_unless(sys_timeouts_sleeptime() == 10);
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136 | sys_timeout(20, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1));
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137 | fail_unless(sys_timeouts_sleeptime() == 10);
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138 | sys_timeout( 5, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2));
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139 | fail_unless(sys_timeouts_sleeptime() == 5);
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140 |
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141 | /* linked list correctly sorted? */
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142 | fail_unless((*list_head)->time == (u32_t)(lwip_sys_now + 5));
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143 | fail_unless((*list_head)->next->time == (u32_t)(lwip_sys_now + 10));
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144 | fail_unless((*list_head)->next->next->time == (u32_t)(lwip_sys_now + 20));
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145 |
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146 | /* check timers expire in correct order */
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147 | memset(&fired, 0, sizeof(fired));
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148 |
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149 | lwip_sys_now += 4;
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150 | sys_check_timeouts();
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151 | fail_unless(fired[2] == 0);
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152 |
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153 | lwip_sys_now += 1;
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154 | sys_check_timeouts();
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155 | fail_unless(fired[2] == 1);
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156 |
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157 | lwip_sys_now += 4;
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158 | sys_check_timeouts();
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159 | fail_unless(fired[0] == 0);
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160 |
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161 | lwip_sys_now += 1;
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162 | sys_check_timeouts();
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163 | fail_unless(fired[0] == 1);
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164 |
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165 | lwip_sys_now += 9;
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166 | sys_check_timeouts();
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167 | fail_unless(fired[1] == 0);
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168 |
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169 | lwip_sys_now += 1;
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170 | sys_check_timeouts();
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171 | fail_unless(fired[1] == 1);
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172 |
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173 | sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
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174 | sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 1));
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175 | sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 2));
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176 | }
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177 |
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178 | START_TEST(test_timers)
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179 | {
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180 | LWIP_UNUSED_ARG(_i);
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181 |
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182 | /* check without u32_t wraparound */
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183 | do_test_timers(0);
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184 |
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185 | /* check with u32_t wraparound */
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186 | do_test_timers(0xfffffff0);
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187 | }
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188 | END_TEST
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189 |
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190 | START_TEST(test_long_timer)
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191 | {
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192 | LWIP_UNUSED_ARG(_i);
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193 |
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194 | memset(&fired, 0, sizeof(fired));
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195 | lwip_sys_now = 0;
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196 |
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197 | sys_timeout(LWIP_UINT32_MAX / 4, dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
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198 | fail_unless(sys_timeouts_sleeptime() == LWIP_UINT32_MAX / 4);
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199 |
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200 | sys_check_timeouts();
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201 | fail_unless(fired[0] == 0);
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202 |
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203 | lwip_sys_now += LWIP_UINT32_MAX / 8;
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204 |
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205 | sys_check_timeouts();
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206 | fail_unless(fired[0] == 0);
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207 |
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208 | lwip_sys_now += LWIP_UINT32_MAX / 8;
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209 |
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210 | sys_check_timeouts();
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211 | fail_unless(fired[0] == 0);
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212 |
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213 | lwip_sys_now += 1;
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214 |
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215 | sys_check_timeouts();
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216 | fail_unless(fired[0] == 1);
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217 |
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218 | sys_untimeout(dummy_handler, LWIP_PTR_NUMERIC_CAST(void*, 0));
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219 | }
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220 | END_TEST
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221 |
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222 | /** Create the suite including all tests for this module */
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223 | Suite *
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224 | timers_suite(void)
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225 | {
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226 | testfunc tests[] = {
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227 | TESTFUNC(test_bug52748),
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228 | TESTFUNC(test_cyclic_timers),
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229 | TESTFUNC(test_timers),
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230 | TESTFUNC(test_long_timer),
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231 | };
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232 | return create_suite("TIMERS", tests, LWIP_ARRAYSIZE(tests), timers_setup, timers_teardown);
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233 | }
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