sourceturner
c96fd58a07
CI runner needs more time to be able to run timer_gettime() after timer_settime()
100 lines
3.0 KiB
C
100 lines
3.0 KiB
C
#include <assert.h>
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#include <signal.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <time.h>
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#include "test_helpers.h"
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static volatile sig_atomic_t alarm_count = 0;
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static void handler(int sig) {
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(void)sig;
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alarm_count++;
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}
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int main(void) {
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long COUNTDOWN_MILLISECONDS = 100;
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unsigned int SLEEP_MILLISECONDS = 110;
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struct sigaction sa;
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sa.sa_handler = handler;
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sa.sa_flags = 0;
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sigemptyset(&sa.sa_mask);
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int r = sigaction(SIGALRM, &sa, NULL);
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ERROR_IF(sigaction, r, == -1);
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struct sigevent signal_event = {0};
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signal_event.sigev_signo = SIGALRM;
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signal_event.sigev_notify = SIGEV_SIGNAL;
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timer_t timerid = {0};
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int status = 0;
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struct itimerspec current_timer_spec = {0};
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struct itimerspec new_timer_spec = {0};
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new_timer_spec.it_value.tv_sec = 0;
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new_timer_spec.it_value.tv_nsec = COUNTDOWN_MILLISECONDS * 1000000;
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// use an invalid timer
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status = timer_gettime(timerid, ¤t_timer_spec);
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ERROR_IF(timer_gettime, status, == 0);
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status = timer_settime(timerid, 0, &new_timer_spec, NULL);
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ERROR_IF(timer_settime, status, == 0);
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printf("invalid_timer: ok\n");
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// create a timer
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status = timer_create(CLOCK_MONOTONIC, &signal_event, &timerid);
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ERROR_IF(timer_create, status, == -1);
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printf("timer_create: ok\n");
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// check that no timer has been configured yet
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status = timer_gettime(timerid, ¤t_timer_spec);
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ERROR_IF(timer_gettime, status, == -1);
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assert(current_timer_spec.it_value.tv_sec == 0);
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assert(current_timer_spec.it_value.tv_nsec == 0);
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printf("timer_gettime: ok\n");
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// start a timer
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status = timer_settime(timerid, 0, &new_timer_spec, ¤t_timer_spec);
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ERROR_IF(timer_settime, status, == -1);
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// check that there has been no previous timer
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assert(current_timer_spec.it_value.tv_sec == 0);
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assert(current_timer_spec.it_value.tv_nsec == 0);
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// timer_gettime reports the timer
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status = timer_gettime(timerid, ¤t_timer_spec);
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assert(current_timer_spec.it_value.tv_sec == 0);
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assert(current_timer_spec.it_value.tv_nsec > 0);
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assert(current_timer_spec.it_value.tv_nsec <= COUNTDOWN_MILLISECONDS * 1000000);
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// timer fires
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usleep(SLEEP_MILLISECONDS * 1000);
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assert(alarm_count == 1);
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// timer_gettime reports no timer any more
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status = timer_gettime(timerid, ¤t_timer_spec);
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assert(current_timer_spec.it_value.tv_sec == 0);
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assert(current_timer_spec.it_value.tv_nsec == 0);
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printf("timer_settime: ok\n");
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// delete the timer
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status = timer_delete(timerid);
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ERROR_IF(timer_delete, status, == -1);
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// any attempts to use the timerid should report EINVAL
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status = timer_gettime(timerid, ¤t_timer_spec); // must fail
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ERROR_IF(timer_delete, status, == 0);
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assert(errno == EINVAL);
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status = timer_settime(timerid, 0, &new_timer_spec, ¤t_timer_spec);
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ERROR_IF(timer_delete, status, == 0);
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assert(errno == EINVAL);
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printf("timer_delete: ok\n", status);
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return EXIT_SUCCESS;
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}
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