static int
do_test (void)
{
if (signal (SIGUSR1, sigusr1_handler) == SIG_ERR)
FAIL_EXIT1 ("signal (SIGUSR1): %m\n");
sigset_t sigs;
sigemptyset (&sigs);
sigaddset (&sigs, SIGUSR2);
if (sigprocmask (SIG_BLOCK, &sigs, NULL) != 0)
FAIL_EXIT1 ("sigprocmask (SIGBLOCK, SIGUSR2): %m");
pid_t pid = signal_sender ();
int signo = 0;
int ret = sigwait (&sigs, &signo);
if (ret != 0)
{
support_record_failure ();
errno = ret;
printf ("error: sigwait failed: %m (%d)\n", ret);
}
TEST_VERIFY (signo == SIGUSR2);
int status;
xwaitpid (pid, &status, 0);
TEST_VERIFY (status == 0);
return 0;
}
static int
do_test (void)
{
struct sigaction action =
{
.sa_handler = sigusr1_handler,
};
sigemptyset (&action.sa_mask);
if (sigaction (SIGUSR1, &action, NULL) != 0)
{
printf ("error: sigaction: %m");
return 1;
}
action.sa_handler = liveness_signal_handler;
if (sigaction (SIGUSR2, &action, NULL) != 0)
{
printf ("error: sigaction: %m");
return 1;
}
pid_t sigusr2_sender_pid = fork ();
if (sigusr2_sender_pid == 0)
signal_sender (SIGUSR2, true);
sigusr1_sender_pid = fork ();
if (sigusr1_sender_pid == 0)
signal_sender (SIGUSR1, false);
void *objects[malloc_objects] = {};
unsigned signals = 0;
unsigned seed = 1;
time_t last_report = 0;
while (signals < signal_count)
{
progress_indicator = 1;
int slot = rand_r (&seed) % malloc_objects;
size_t size = rand_r (&seed) % malloc_maximum_size;
if (kill (sigusr1_sender_pid, SIGCONT) != 0)
{
printf ("error: kill (SIGCONT): %m\n");
signal (SIGUSR1, SIG_IGN);
kill (sigusr1_sender_pid, SIGKILL);
kill (sigusr2_sender_pid, SIGKILL);
return 1;
}
sigusr1_received = false;
free (objects[slot]);
objects[slot] = malloc (size);
if (sigusr1_received)
{
++signals;
time_t current = time (0);
if (current != last_report)
{
printf ("info: SIGUSR1 signal count: %u\n", signals);
last_report = current;
}
}
if (objects[slot] == NULL)
{
printf ("error: malloc: %m\n");
signal (SIGUSR1, SIG_IGN);
kill (sigusr1_sender_pid, SIGKILL);
kill (sigusr2_sender_pid, SIGKILL);
return 1;
}
}
/* Clean up allocations. */
for (int slot = 0; slot < malloc_objects; ++slot)
free (objects[slot]);
/* Terminate the signal-sending subprocess. The SIGUSR1 handler
should no longer run because it uses sigusr1_sender_pid. */
signal (SIGUSR1, SIG_IGN);
kill (sigusr1_sender_pid, SIGKILL);
kill (sigusr2_sender_pid, SIGKILL);
return 0;
}
