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author | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2016-10-24 20:22:12 +0200 |
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committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2016-10-24 20:22:12 +0200 |
commit | 7988979a722b4cdf287b2093956a76a3f19b9897 (patch) | |
tree | d35e251d0472ceca55a2eef61cff261c8ee68fab /test/time/clocktest.c |
add uClibc-ng test directory
Diffstat (limited to 'test/time/clocktest.c')
-rw-r--r-- | test/time/clocktest.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/time/clocktest.c b/test/time/clocktest.c new file mode 100644 index 0000000..a5b2c09 --- /dev/null +++ b/test/time/clocktest.c @@ -0,0 +1,36 @@ +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> + +volatile int gotit = 0; + +static void +alarm_handler (int signum) +{ + gotit = 1; +} + + +int +main (int argc, char ** argv) +{ + clock_t start, stop; + + if (signal(SIGALRM, alarm_handler) == SIG_ERR) + { + perror ("signal"); + exit (1); + } + alarm(1); + start = clock (); + while (!gotit); + stop = clock (); + + printf ("%ld clock ticks per second (start=%ld,stop=%ld)\n", + stop - start, start, stop); + printf ("CLOCKS_PER_SEC=%ld, sysconf(_SC_CLK_TCK)=%ld\n", + CLOCKS_PER_SEC, sysconf(_SC_CLK_TCK)); + return 0; +} |