static void
wait_twoproc_test(void)
{
semid_t id;
int stat;
if (ksem_open(&id, TEST_PATH, O_CREAT, 0777, 0)) {
fail_errno("ksem_open");
return;
}
if (schedule_post(id, 500) < 0) {
ksem_close(id);
ksem_unlink(TEST_PATH);
return;
}
if (child_worker(wait_twoproc_child, NULL, &stat) < 0) {
check_alarm(1);
ksem_close(id);
ksem_unlink(TEST_PATH);
return;
}
errno = CSTAT_ERROR(stat);
switch (CSTAT_CLASS(stat)) {
case 0:
pass();
break;
case 1:
fail_errno("child ksem_open()");
break;
case 2:
fail_errno("child ksem_wait()");
break;
case 3:
fail_errno("child ksem_close()");
break;
default:
fail_err("bad child state %#x", stat);
break;
}
check_alarm(1);
ksem_close(id);
ksem_unlink(TEST_PATH);
}
/*
* Attempt a ksem_open() that should fail with an expected error of
* 'error'.
*/
static void
ksem_open_should_fail(const char *path, int flags, mode_t mode, unsigned int
value, int error)
{
semid_t id;
if (ksem_open(&id, path, flags, mode, value) >= 0) {
fail_err("ksem_open() didn't fail");
ksem_close(id);
return;
}
if (errno != error) {
fail_errno("ksem_open");
return;
}
pass();
}
static void
open_after_unlink(void)
{
semid_t id;
if (ksem_open(&id, TEST_PATH, O_CREAT, 0777, 1) < 0) {
fail_errno("ksem_open(1)");
return;
}
ksem_close(id);
if (ksem_unlink(TEST_PATH) < 0) {
fail_errno("ksem_unlink");
return;
}
ksem_open_should_fail(TEST_PATH, O_RDONLY, 0777, 1, ENOENT);
}
static int
exhaust_named_child(void *arg)
{
char buffer[64];
semid_t id;
int i, max;
max = (intptr_t)arg;
for (i = 0; i < max + 1; i++) {
snprintf(buffer, sizeof(buffer), "%s%d", TEST_PATH, i);
if (ksem_open(&id, buffer, O_CREAT, 0777, 1) < 0) {
if (errno == ENOSPC || errno == EMFILE ||
errno == ENFILE)
return (CSTAT(0, 0));
return (CSTAT(1, errno));
}
}
return (CSTAT(2, errno));
}
static void
open_named_semaphore(void)
{
semid_t id;
if (ksem_open(&id, TEST_PATH, O_CREAT, 0777, 1) < 0) {
fail_errno("ksem_open(O_CREAT)");
return;
}
if (ksem_close(id) < 0) {
fail_errno("ksem_close");
return;
}
if (ksem_unlink(TEST_PATH) < 0) {
fail_errno("ksem_unlink");
return;
}
pass();
}
