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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 | #include <time.h> #include <sys/time.h> #include <mach/mach_time.h> #include <stdlib.h> #include <unistd.h> #include <darwintest.h> static void burn_cpu(void){ static char *dummy_text = "Four score and seven years ago our fathers brought forth on this continent a new nation, conceived in liberty, and dedicated to the"; for (int i = 0; i < 100; i++){ char key[64]; char txt[64]; strncpy(txt, dummy_text, 64); for (int j = 0; i < 64; i++){ key[j] = rand() % 1; } setkey(key); encrypt(txt, 0); encrypt(txt, 1); } } T_DECL(clock_gettime_realtime, "clock_gettime(CLOCK_REALTIME, tp)") { struct timespec ts; T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_REALTIME, &ts), NULL); struct timeval tv; T_ASSERT_POSIX_ZERO(gettimeofday(&tv, NULL), NULL); T_EXPECT_LE((unsigned long)tv.tv_sec - (unsigned long)ts.tv_sec, (unsigned long)1, "gettimeofday() should return same as clock_gettime(CLOCK_REALTIME)"); } T_DECL(clock_gettime_monotonic, "clock_gettime(CLOCK_MONOTONIC, tp)") { struct timespec ts1, ts2; T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_MONOTONIC, &ts1), NULL); sleep(1); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_MONOTONIC, &ts2), NULL); uint64_t nsec1 = (uint64_t)ts1.tv_sec * NSEC_PER_SEC + (uint64_t)ts1.tv_nsec; uint64_t nsec2 = (uint64_t)ts2.tv_sec * NSEC_PER_SEC + (uint64_t)ts2.tv_nsec; uint64_t nsec_diff = (uint64_t)llabs((int64_t)nsec2 - (int64_t)nsec1); T_EXPECT_GE(nsec_diff, 100 * NSEC_PER_MSEC, "clock_gettime(CLOCK_MONOTONIC) should advance at least 100ms"); T_EXPECT_LE(nsec_diff, 10 * NSEC_PER_SEC, "clock_gettime(CLOCK_MONOTONIC) should advance no more than 10s"); } T_DECL(clock_gettime_monotonic_raw, "clock_gettime(CLOCK_MONOTONIC_RAW, tp)") { struct timespec ts1, ts2; T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_MONOTONIC_RAW, &ts1), NULL); sleep(1); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_MONOTONIC_RAW, &ts2), NULL); uint64_t nsec1 = (uint64_t)ts1.tv_sec * NSEC_PER_SEC + (uint64_t)ts1.tv_nsec; uint64_t nsec2 = (uint64_t)ts2.tv_sec * NSEC_PER_SEC + (uint64_t)ts2.tv_nsec; uint64_t nsec_diff = (uint64_t)llabs((int64_t)nsec2 - (int64_t)nsec1); T_EXPECT_GE(nsec_diff, 100 * NSEC_PER_MSEC, "clock_gettime(CLOCK_MONOTONIC_RAW) should advance at least 100ms"); T_EXPECT_LE(nsec_diff, 10 * NSEC_PER_SEC, "clock_gettime(CLOCK_MONOTONIC_RAW) should advance no more than 10s"); } T_DECL(clock_gettime_uptime_raw, "clock_gettime(CLOCK_UPTIME_RAW, tp)") { struct timespec ts1, ts2; T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_UPTIME_RAW, &ts1), NULL); sleep(1); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_UPTIME_RAW, &ts2), NULL); uint64_t nsec1 = (uint64_t)ts1.tv_sec * NSEC_PER_SEC + (uint64_t)ts1.tv_nsec; uint64_t nsec2 = (uint64_t)ts2.tv_sec * NSEC_PER_SEC + (uint64_t)ts2.tv_nsec; uint64_t nsec_diff = (uint64_t)llabs((int64_t)nsec2 - (int64_t)nsec1); T_EXPECT_GE(nsec_diff, 100 * NSEC_PER_MSEC, "clock_gettime(CLOCK_UPTIME_RAW) should advance at least 100ms"); T_EXPECT_LE(nsec_diff, 10 * NSEC_PER_SEC, "clock_gettime(CLOCK_UPTIME_RAW) should advance no more than 10s"); } T_DECL(clock_gettime_cputime, "clock_gettime(CLOCK_*_CPUTIME_ID, tp)") { struct timespec thread_ts1, thread_ts2; struct timespec process_ts1, process_ts2; T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &process_ts1), NULL); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_THREAD_CPUTIME_ID, &thread_ts1), NULL); burn_cpu(); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &process_ts2), NULL); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_THREAD_CPUTIME_ID, &thread_ts1), NULL); uint64_t nsec1, nsec2, nsec_diff; // CLOCK_PROCESS_CPUTIME_ID nsec1 = (uint64_t)process_ts1.tv_sec * NSEC_PER_SEC + (uint64_t)process_ts1.tv_nsec; nsec2 = (uint64_t)process_ts2.tv_sec * NSEC_PER_SEC + (uint64_t)process_ts2.tv_nsec; nsec_diff = (uint64_t)llabs((int64_t)nsec2 - (int64_t)nsec1); T_EXPECT_GE(nsec_diff, NSEC_PER_USEC, "clock_gettime(CLOCK_PROCESS_CPUTIME_ID) should advance at least 1us"); T_EXPECT_LE(nsec_diff, 10 * NSEC_PER_SEC, "clock_gettime(CLOCK_PROCESS_CPUTIME_ID) should advance no more than 10s"); // CLOCK_THREAD_CPUTIME_ID nsec1 = (uint64_t)thread_ts1.tv_sec * NSEC_PER_SEC + (uint64_t)thread_ts1.tv_nsec; nsec2 = (uint64_t)thread_ts2.tv_sec * NSEC_PER_SEC + (uint64_t)thread_ts2.tv_nsec; nsec_diff = (uint64_t)llabs((int64_t)nsec2 - (int64_t)nsec1); T_EXPECT_GE(nsec_diff, NSEC_PER_USEC, "clock_gettime(CLOCK_THREAD_CPUTIME_ID) should advance at least 1us"); T_EXPECT_LE(nsec_diff, 10 * NSEC_PER_SEC, "clock_gettime(CLOCK_THREAD_CPUTIME_ID) should advance no more than 10s"); } T_DECL(clock_gettime_monotonic_comparison, "compare CLOCK_MONOTONIC to CLOCK_MONOTONIC_RAW") { struct timespec ts1, ts2; bool should_retry = true; retry: T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_MONOTONIC, &ts1), NULL); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_MONOTONIC_RAW, &ts2), NULL); uint64_t nsec1 = (uint64_t)ts1.tv_sec * NSEC_PER_SEC + (uint64_t)ts1.tv_nsec; uint64_t nsec2 = (uint64_t)ts2.tv_sec * NSEC_PER_SEC + (uint64_t)ts2.tv_nsec; uint64_t nsec_diff = (uint64_t)llabs((int64_t)nsec2 - (int64_t)nsec1); if (should_retry && nsec_diff > nsec2/20){ should_retry = false; goto retry; } T_EXPECT_LE(nsec_diff, nsec2/20, "CLOCK_MONOTONIC and CLOCK_MONOTONIC_RAW should be within 5%%"); } T_DECL(clock_gettime_nsec_np, "clock_gettime_nsec_np()") { struct timespec ts; uint64_t nsec, ts_nsec, diff; T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_REALTIME, &ts), NULL); T_WITH_ERRNO; T_ASSERT_NE((nsec = clock_gettime_nsec_np(CLOCK_REALTIME)), (uint64_t)0, NULL); ts_nsec = (uint64_t)ts.tv_sec * NSEC_PER_SEC + (uint64_t)ts.tv_nsec; diff = (uint64_t)llabs((int64_t)nsec - (int64_t)ts_nsec); T_EXPECT_LE(diff, 100 * NSEC_PER_MSEC, "CLOCK_REALTIME: clock_gettime() and clock_gettime_nsec_np() should be within 100ms"); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_MONOTONIC, &ts), NULL); T_WITH_ERRNO; T_ASSERT_NE((nsec = clock_gettime_nsec_np(CLOCK_MONOTONIC)), (uint64_t)0, NULL); ts_nsec = (uint64_t)ts.tv_sec * NSEC_PER_SEC + (uint64_t)ts.tv_nsec; diff = (uint64_t)llabs((int64_t)nsec - (int64_t)ts_nsec); T_EXPECT_LE(diff, 100 * NSEC_PER_MSEC, "CLOCK_MONOTONIC: clock_gettime() and clock_gettime_nsec_np() should be within 100ms"); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_MONOTONIC_RAW, &ts), NULL); T_WITH_ERRNO; T_ASSERT_NE((nsec = clock_gettime_nsec_np(CLOCK_MONOTONIC_RAW)), (uint64_t)0, NULL); ts_nsec = (uint64_t)ts.tv_sec * NSEC_PER_SEC + (uint64_t)ts.tv_nsec; diff = (uint64_t)llabs((int64_t)nsec - (int64_t)ts_nsec); T_EXPECT_LE(diff, 100 * NSEC_PER_MSEC, "CLOCK_MONOTONIC_RAW: clock_gettime() and clock_gettime_nsec_np() should be within 100ms"); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_UPTIME_RAW, &ts), NULL); T_WITH_ERRNO; T_ASSERT_NE((nsec = clock_gettime_nsec_np(CLOCK_UPTIME_RAW)), (uint64_t)0, NULL); ts_nsec = (uint64_t)ts.tv_sec * NSEC_PER_SEC + (uint64_t)ts.tv_nsec; diff = (uint64_t)llabs((int64_t)nsec - (int64_t)ts_nsec); T_EXPECT_LE(diff, 100 * NSEC_PER_MSEC, "CLOCK_UPTIME_RAW: clock_gettime() and clock_gettime_nsec_np() should be within 100ms"); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts), NULL); T_WITH_ERRNO; T_ASSERT_NE((nsec = clock_gettime_nsec_np(CLOCK_PROCESS_CPUTIME_ID)), (uint64_t)0, NULL); ts_nsec = (uint64_t)ts.tv_sec * NSEC_PER_SEC + (uint64_t)ts.tv_nsec; diff = (uint64_t)llabs((int64_t)nsec - (int64_t)ts_nsec); T_EXPECT_LE(diff, 100 * NSEC_PER_MSEC, "CLOCK_PROCESS_CPUTIME_ID: clock_gettime() and clock_gettime_nsec_np() should be within 100ms"); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts), NULL); T_WITH_ERRNO; T_ASSERT_NE((nsec = clock_gettime_nsec_np(CLOCK_THREAD_CPUTIME_ID)), (uint64_t)0, NULL); ts_nsec = (uint64_t)ts.tv_sec * NSEC_PER_SEC + (uint64_t)ts.tv_nsec; diff = (uint64_t)llabs((int64_t)nsec - (int64_t)ts_nsec); T_EXPECT_LE(diff, 100 * NSEC_PER_MSEC, "CLOCK_THREAD_CPUTIME_ID: clock_gettime() and clock_gettime_nsec_np() should be within 100ms"); } T_DECL(clock_getres, "clock_getres()") { struct timespec ts; T_ASSERT_POSIX_ZERO(clock_getres(CLOCK_REALTIME, &ts), NULL); T_LOG("Resolution of CLOCK_REALTIME is %ld ns", ts.tv_nsec); T_EXPECT_EQ(ts.tv_sec, (long)0, NULL); T_EXPECT_GT(ts.tv_nsec, (long)0, NULL); T_ASSERT_POSIX_ZERO(clock_getres(CLOCK_MONOTONIC, &ts), NULL); T_LOG("Resolution of CLOCK_MONOTONIC is %ld ns", ts.tv_nsec); T_EXPECT_EQ(ts.tv_sec, (long)0, NULL); T_EXPECT_GT(ts.tv_nsec, (long)0, NULL); T_ASSERT_POSIX_ZERO(clock_getres(CLOCK_MONOTONIC_RAW, &ts), NULL); T_LOG("Resolution of CLOCK_MONOTONIC_RAW is %ld ns", ts.tv_nsec); T_EXPECT_EQ(ts.tv_sec, (long)0, NULL); T_EXPECT_GT(ts.tv_nsec, (long)0, NULL); T_ASSERT_POSIX_ZERO(clock_getres(CLOCK_UPTIME_RAW, &ts), NULL); T_LOG("Resolution of CLOCK_UPTIME_RAW is %ld ns", ts.tv_nsec); T_EXPECT_EQ(ts.tv_sec, (long)0, NULL); T_EXPECT_GT(ts.tv_nsec, (long)0, NULL); T_ASSERT_POSIX_ZERO(clock_getres(CLOCK_PROCESS_CPUTIME_ID, &ts), NULL); T_LOG("Resolution of CLOCK_MONOTONIC_RAW is %ld ns", ts.tv_nsec); T_EXPECT_EQ(ts.tv_sec, (long)0, NULL); T_EXPECT_GT(ts.tv_nsec, (long)0, NULL); T_ASSERT_POSIX_ZERO(clock_getres(CLOCK_THREAD_CPUTIME_ID, &ts), NULL); T_LOG("Resolution of CLOCK_MONOTONIC_RAW is %ld ns", ts.tv_nsec); T_EXPECT_EQ(ts.tv_sec, (long)0, NULL); T_EXPECT_GT(ts.tv_nsec, (long)0, NULL); } T_DECL(clock_settime_realtime, "clock_settime(CLOCK_REALTIME, tp)", T_META("as_root", "true")) { struct timespec ts; T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_REALTIME, &ts), NULL); time_t initial_time = ts.tv_sec; ts.tv_nsec += 1 * NSEC_PER_SEC; T_ASSERT_POSIX_ZERO(clock_settime(CLOCK_REALTIME, &ts), NULL); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_REALTIME, &ts), NULL); T_EXPECT_GT(ts.tv_sec - initial_time, (time_t)0, "time should move forward at least one second"); T_EXPECT_LE(ts.tv_sec - initial_time, (time_t)2, "time should move forward less than two seconds"); } T_DECL(clock_settime_other, "clock_settime(CLOCK_*, tp)", T_META("as_root", "true")) { struct timespec ts;; T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_MONOTONIC_RAW, &ts), NULL); T_EXPECT_EQ(clock_settime(CLOCK_MONOTONIC_RAW, &ts), -1, NULL); T_EXPECT_EQ(errno, EINVAL, NULL); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts), NULL); T_EXPECT_EQ(clock_settime(CLOCK_PROCESS_CPUTIME_ID, &ts), -1, NULL); T_EXPECT_EQ(errno, EINVAL, NULL); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_UPTIME_RAW, &ts), NULL); T_EXPECT_EQ(clock_settime(CLOCK_UPTIME_RAW, &ts), -1, NULL); T_EXPECT_EQ(errno, EINVAL, NULL); T_ASSERT_POSIX_ZERO(clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts), NULL); T_EXPECT_EQ(clock_settime(CLOCK_THREAD_CPUTIME_ID, &ts), -1, NULL); T_EXPECT_EQ(errno, EINVAL, NULL); } |