96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
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/* Test 69. clock_getres(), clock_gettime(). */
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#include <time.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#define TRIALS 100
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#define MAX_ERROR 4
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#define DEBUG 0
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int subtest = 1;
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#include "common.c"
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int main(void);
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void quit(void);
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static void test_clock_getres();
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static void test_clock_gettime();
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static void show_timespec(char *msg, struct timespec *ts);
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static void test_clock_getres()
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{
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struct timespec res;
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/* valid clock_id should succeed, invalid clock_id should fail */
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if (clock_getres(CLOCK_REALTIME, &res) == -1) e(10);
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if (res.tv_sec < 0 || res.tv_nsec < 0) e(11);
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show_timespec("res(CLOCK_REALTIME)", &res);
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if (clock_getres(CLOCK_MONOTONIC, &res) == -1) e(12);
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if (res.tv_sec < 0 || res.tv_nsec < 0) e(13);
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show_timespec("res(CLOCK_MONOTONIC)", &res);
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if (clock_getres(-1, &res) == 0) e(14);
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}
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static void test_clock_gettime()
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{
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struct timespec ts, ts2;
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/* valid clock_id should succeed, invalid clock_id should fail */
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if (clock_gettime(CLOCK_REALTIME, &ts) == -1) e(21);
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if (ts.tv_sec < 0 || ts.tv_nsec < 0) e(22);
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show_timespec("time(CLOCK_REALTIME)", &ts);
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sleep(2);
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if (clock_gettime(CLOCK_REALTIME, &ts2) == -1) e(23);
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if (ts2.tv_sec < 0 || ts2.tv_nsec < 0) e(24);
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if (ts2.tv_sec <= ts.tv_sec) e(25);
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if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1) e(26);
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if (ts.tv_sec < 0 || ts.tv_nsec < 0) e(27);
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show_timespec("time(CLOCK_MONOTONIC)", &ts);
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sleep(2);
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if (clock_gettime(CLOCK_MONOTONIC, &ts2) == -1) e(28);
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if (ts2.tv_sec < 0 || ts2.tv_nsec < 0) e(29);
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if (ts2.tv_sec <= ts.tv_sec) e(30);
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if (clock_gettime(-1, &ts) == 0) e(31);
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}
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static void show_timespec(char *msg, struct timespec *ts)
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{
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#if DEBUG == 1
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printf("[%s] tv_sec=%d tv_nsec=%ld\n", msg, ts->tv_sec, ts->tv_nsec);
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#endif /* DEBUG == 1 */
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}
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int main()
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{
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start(69);
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struct timespec starttime, endtime;
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/* get test start time */
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if (clock_gettime(CLOCK_MONOTONIC, &starttime) == -1) e(1);
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test_clock_getres();
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test_clock_gettime();
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/* get test end time */
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if (clock_gettime(CLOCK_MONOTONIC, &endtime) == -1) e(2);
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/* we shouldn't have gone backwards in time during this test */
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if ((starttime.tv_sec > endtime.tv_sec) ||
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(starttime.tv_sec == endtime.tv_sec &&
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starttime.tv_nsec > endtime.tv_nsec)) e(3);
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quit();
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return(-1); /* impossible */
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}
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