diff options
Diffstat (limited to 'man2/timerfd_create.2')
| -rw-r--r-- | man2/timerfd_create.2 | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/man2/timerfd_create.2 b/man2/timerfd_create.2 index 516e050b35..d68206b054 100644 --- a/man2/timerfd_create.2 +++ b/man2/timerfd_create.2 @@ -602,7 +602,7 @@ a.out 3 1 100 #include <sys/timerfd.h> #include <time.h> #include <unistd.h> - +\& static void print_elapsed_time(void) { @@ -610,16 +610,16 @@ print_elapsed_time(void) static int first_call = 1; struct timespec curr; static struct timespec start; - +\& if (first_call) { first_call = 0; if (clock_gettime(CLOCK_MONOTONIC, &start) == \-1) err(EXIT_FAILURE, "clock_gettime"); } - +\& if (clock_gettime(CLOCK_MONOTONIC, &curr) == \-1) err(EXIT_FAILURE, "clock_gettime"); - +\& secs = curr.tv_sec \- start.tv_sec; nsecs = curr.tv_nsec \- start.tv_nsec; if (nsecs < 0) { @@ -628,7 +628,7 @@ print_elapsed_time(void) } printf("%d.%03d: ", secs, (nsecs + 500000) / 1000000); } - +\& int main(int argc, char *argv[]) { @@ -637,19 +637,19 @@ main(int argc, char *argv[]) uint64_t exp, tot_exp, max_exp; struct timespec now; struct itimerspec new_value; - +\& if (argc != 2 && argc != 4) { fprintf(stderr, "%s init\-secs [interval\-secs max\-exp]\en", argv[0]); exit(EXIT_FAILURE); } - +\& if (clock_gettime(CLOCK_REALTIME, &now) == \-1) err(EXIT_FAILURE, "clock_gettime"); - +\& /* Create a CLOCK_REALTIME absolute timer with initial expiration and interval as specified in command line. */ - +\& new_value.it_value.tv_sec = now.tv_sec + atoi(argv[1]); new_value.it_value.tv_nsec = now.tv_nsec; if (argc == 2) { @@ -660,27 +660,27 @@ main(int argc, char *argv[]) max_exp = atoi(argv[3]); } new_value.it_interval.tv_nsec = 0; - +\& fd = timerfd_create(CLOCK_REALTIME, 0); if (fd == \-1) err(EXIT_FAILURE, "timerfd_create"); - +\& if (timerfd_settime(fd, TFD_TIMER_ABSTIME, &new_value, NULL) == \-1) err(EXIT_FAILURE, "timerfd_settime"); - +\& print_elapsed_time(); printf("timer started\en"); - +\& for (tot_exp = 0; tot_exp < max_exp;) { s = read(fd, &exp, sizeof(uint64_t)); if (s != sizeof(uint64_t)) err(EXIT_FAILURE, "read"); - +\& tot_exp += exp; print_elapsed_time(); printf("read: %" PRIu64 "; total=%" PRIu64 "\en", exp, tot_exp); } - +\& exit(EXIT_SUCCESS); } .EE |