| 1 | /* Test setting the monotonic clock. */ |
|---|---|
| 2 | |
| 3 | #include <time.h> |
| 4 | #include <unistd.h> |
| 5 | |
| 6 | #if defined CLOCK_MONOTONIC && defined _POSIX_MONOTONIC_CLOCK |
| 7 | |
| 8 | # include <errno.h> |
| 9 | # include <stdio.h> |
| 10 | |
| 11 | static int |
| 12 | do_test (void) |
| 13 | { |
| 14 | if (sysconf (_SC_MONOTONIC_CLOCK) <= 0) |
| 15 | return 0; |
| 16 | |
| 17 | struct timespec ts; |
| 18 | if (clock_gettime (CLOCK_MONOTONIC, tp: &ts) != 0) |
| 19 | { |
| 20 | puts (s: "clock_gettime(CLOCK_MONOTONIC) failed"); |
| 21 | return 1; |
| 22 | } |
| 23 | |
| 24 | /* Setting the monotonic clock must fail. */ |
| 25 | if (clock_settime (CLOCK_MONOTONIC, tp: &ts) != -1) |
| 26 | { |
| 27 | puts (s: "clock_settime(CLOCK_MONOTONIC) did not fail"); |
| 28 | return 1; |
| 29 | } |
| 30 | if (errno != EINVAL) |
| 31 | { |
| 32 | printf (format: "clock_settime(CLOCK_MONOTONIC) set errno to %d, expected %d\n", |
| 33 | errno, EINVAL); |
| 34 | return 1; |
| 35 | } |
| 36 | return 0; |
| 37 | } |
| 38 | # define TEST_FUNCTION do_test () |
| 39 | |
| 40 | #else |
| 41 | # define TEST_FUNCTION 0 |
| 42 | #endif |
| 43 | #include "../test-skeleton.c" |
| 44 |