int
main(int argc, char **argv)
{
struct sigaction sa;
pthread_t tid;
void *retval;
bzero(&sa, sizeof(sa));
sa.sa_handler = handler;
sa.sa_flags = SA_RESTART;
CHECKe(sigaction(SIGUSR1, &sa, NULL));
sa.sa_flags = 0;
CHECKe(sigaction(SIGUSR2, &sa, NULL));
CHECKr(pthread_create(&tid, NULL, thr_accept, NULL));
sleep(2);
/* Should restart it. */
CHECKr(pthread_kill(tid, SIGUSR1));
sleep(1);
/* Should interrupt it. */
CHECKr(pthread_kill(tid, SIGUSR2));
sleep(1);
CHECKr(pthread_join(tid, &retval));
ASSERT(retval == (void *)EINTR);
ASSERT(hits == 2);
SUCCEED;
}
int
main(int argc, char **argv)
{
pthread_t thread1;
pthread_t thread2;
struct sigaction act;
act.sa_sigaction = act_handler;
sigemptyset(&act.sa_mask);
act.sa_flags = SA_SIGINFO | SA_RESETHAND | SA_NODEFER;
CHECKe(sigaction(SIGUSR1, &act, NULL));
CHECKr(pthread_create(&thread1, NULL, thread, "T1"));
CHECKr(pthread_create(&thread2, NULL, thread, "T2"));
sleep(1);
/* Signal handler should run once, both threads should awaken */
CHECKe(kill(getpid(), SIGUSR1));
sleep(1);
/* Signal handler run once, only T1 should awaken */
CHECKe(sigaction(SIGUSR1, &act, NULL));
CHECKr(pthread_kill(thread1, SIGUSR1));
sleep(1);
/* Signal handler run once, only T2 should awaken */
CHECKe(sigaction(SIGUSR1, &act, NULL));
CHECKr(pthread_kill(thread2, SIGUSR1));
sleep(1);
SUCCEED;
}
int
main(int argc, char **argv)
{
pthread_t d, t, self = pthread_self();
pid_t pid;
switch ((pid = fork())) {
case -1:
PANIC("cannot fork");
/* NOTREACHED */
case 0:
/* child */
break;
default:
CHECKr(waitpid(pid, NULL, 0));
_exit(0);
/* NOTREACHED */
}
CHECKr(pthread_create(&d, NULL, deadlock_detector, NULL));
CHECKr(pthread_create(&t, NULL, joiner, &self));
CHECKr(pthread_join(t, NULL));
SUCCEED;
}
/*
* Test that closefrom does the right thing in a threaded programs,
* specifically that it doesn't kill the thread kernel signal pipe.
*/
int
main(int argc, char *argv[])
{
pthread_t thread;
void *status;
int fd;
int result;
/* close files above stderr. The kernel pipes shouldn't be touched */
fd = STDERR_FILENO + 1;
result = closefrom(fd);
printf("closefrom(%d) == %d/%d\n", fd, result, errno);
/* do it again: make sure that the result is -1/EBADF */
result = closefrom(fd);
printf("closefrom(%d) == %d/%d\n", fd, result, errno);
ASSERT(result == -1 && errno == EBADF);
/* start a thread to verify the thread kernel is working */
CHECKr(pthread_create(&thread, NULL, dummy_thread, NULL));
CHECKr(pthread_join(thread, &status));
printf("dummy thread exited with status %p\n", status);
SUCCEED;
return 0;
}
static void
test_nocontention_lock(pthread_mutex_t *mutex)
{
printf(" test_nocontention_lock()\n");
CHECKr(pthread_mutex_lock(mutex));
CHECKr(pthread_mutex_unlock(mutex));
}
static void
test_debug_double_lock(pthread_mutex_t *mutex)
{
printf(" test_debug_double_lock()\n");
CHECKr(pthread_mutex_lock(mutex));
ASSERTe(pthread_mutex_lock(mutex), == EDEADLK);
CHECKr(pthread_mutex_unlock(mutex));
}
int
main(int argc, char **argv)
{
pthread_t accept_thread;
CHECKr(pthread_create(&accept_thread, NULL, sock_accept, NULL));
CHECKr(pthread_join(accept_thread, NULL));
SUCCEED;
}
static void
test_debug_double_unlock(pthread_mutex_t *mutex)
{
printf(" test_debug_double_unlock()\n");
CHECKr(pthread_mutex_lock(mutex));
CHECKr(pthread_mutex_unlock(mutex));
/* Posix D10 says undefined behaviour? */
ASSERTe(pthread_mutex_unlock(mutex), != 0);
}
/*
* Install a signal handler for sigusr1 and then wait for it to
* occur.
*/
static void *
do_nothing (void *arg)
{
SET_NAME("nothing");
ASSERT(signal(SIGUSR1, sighandler) != SIG_ERR);
CHECKr(pthread_mutex_lock(&sync_mutex));
ASSERT(got_signal != 0);
CHECKr(pthread_mutex_unlock(&sync_mutex));
return 0;
}
static void
test_mutex_fast(void)
{
pthread_mutex_t mutex_fast;
printf("test_mutex_fast()\n");
CHECKr(pthread_mutex_init(&mutex_fast, NULL));
test_nocontention_lock(&mutex_fast);
test_nocontention_trylock(&mutex_fast);
test_contention_lock(&mutex_fast);
CHECKr(pthread_mutex_destroy(&mutex_fast));
}
static void *
thread_contention(void *arg)
{
pthread_mutex_t *mutex = arg;
SET_NAME("cntntn");
CHECKr(pthread_mutex_lock(mutex));
ASSERT(contention_variable == 1);
contention_variable = 2;
CHECKr(pthread_mutex_unlock(mutex));
pthread_exit(NULL);
}
int
main(int argc, char *argv[])
{
pthread_t thread;
int pipe_fd[2];
CHECKe(pipe(pipe_fd));
CHECKr(pthread_create(&thread, NULL, select_thread, pipe_fd));
sleep(2);
CHECKr(pthread_cancel(thread));
CHECKr(pthread_join(thread, NULL));
SUCCEED;
}
int
main(int argc, char **argv)
{
pthread_t tid;
CHECKr(pthread_create(&tid, NULL, forker1, NULL));
CHECKr(pthread_join(tid, NULL));
ASSERT(cnt == 1);
CHECKr(pthread_create(&tid, NULL, forker2, NULL));
CHECKr(pthread_join(tid, NULL));
ASSERT(cnt == 0);
SUCCEED;
}
/*
* Test that masked signals with a default action of terminate process
* do NOT terminate the process.
*/
int main (int argc, char *argv[])
{
sigset_t mask;
int sig;
int r;
/* any two (or more) command line args should cause the program
to die */
if (argc > 2) {
printf("trigger sigalrm[1] [test should die]\n");
ualarm(100000, 0);
CHECKe(sleep(1));
}
/* mask sigalrm */
CHECKe(sigemptyset(&mask));
CHECKe(sigaddset(&mask, SIGALRM));
CHECKr(pthread_sigmask(SIG_BLOCK, &mask, NULL));
/* make sure pthread_sigmask() returns the right value on failure */
r = pthread_sigmask(-1, &mask, NULL);
ASSERTe(r, == EINVAL);
/* now trigger sigalrm and wait for it */
printf("trigger sigalrm[2] [masked, test should not die]\n");
ualarm(100000, 0);
CHECKe(sleep(1));
/* sigwait for sigalrm, it should be pending. If it is not
the test will hang. */
CHECKr(sigwait(&mask, &sig));
ASSERT(sig == SIGALRM);
/* make sure sigwait didn't muck with the mask by triggering
sigalrm, again */
printf("trigger sigalrm[3] after sigwait [masked, test should not die]\n");
ualarm(100000, 0);
CHECKe(sleep(1));
/* any single command line arg will run this code wich unmasks the
signal and then makes sure the program terminates when sigalrm
is triggered. */
if (argc > 1) {
printf("trigger sigalrm[4] [unmasked, test should die]\n");
CHECKr(pthread_sigmask(SIG_UNBLOCK, &mask, NULL));
ualarm(100000, 0);
CHECKe(sleep(1));
}
SUCCEED;
}
static void
test_mutex_recursive_trylock(pthread_mutex_t *mutex)
{
int i;
int j = 9;
printf(" %s()\n", __func__);
CHECKr(pthread_mutex_trylock(mutex));
for (i = 0; i < j; i++)
CHECKr(pthread_mutex_trylock(mutex));
for (i = 0; i < j; i++)
CHECKr(pthread_mutex_unlock(mutex));
CHECKr(pthread_mutex_unlock(mutex));
}
int
main(int argc, char **argv)
{
pthread_t prod_th, cons_th;
long counter = 4;
CHECKn(sem_destroy(&cons_sem));
ASSERT(errno == EINVAL);
val = 0;
CHECKr(sem_init(&cons_sem, 0, 0));
CHECKr(sem_init(&prod_sem, 0, 1));
CHECKr(pthread_create(&prod_th, NULL, producer, &counter));
CHECKr(pthread_create(&cons_th, NULL, consumer, &counter));
CHECKr(pthread_join(prod_th, NULL));
CHECKr(pthread_join(cons_th, NULL));
pthread_exit(NULL);
CHECKr(sem_destroy(&prod_sem));
CHECKr(sem_destroy(&cons_sem));
SUCCEED;
}
int
main(int argc, char *argv[])
{
pthread_t thread;
setbuf(stdout, NULL);
setbuf(stderr, NULL);
CHECKr(pthread_create(&thread, NULL, sock_accept,
(void *)0xdeadbeaf));
CHECKr(pthread_join(thread, NULL));
SUCCEED;
}
static void *
sock_connect(void *arg)
{
struct timeval to;
pid_t child_pid;
int status;
int s;
CHECKe(s = socket(AF_INET, SOCK_STREAM, 0));
to.tv_sec = 2;
to.tv_usec = 0.5 * 1e6;
CHECKe(setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &to, sizeof(to)));
CHECKe(child_pid = fork());
if (child_pid == 0) {
char *argv[3];
char fdstr[3];
snprintf(fdstr, sizeof(fdstr), "%d", s);
argv[0] = "setsockopt3a";
argv[1] = fdstr;
argv[2] = NULL;
execv(argv[0], argv);
_exit(NOTOK);
}
ASSERTe(wait(&status), == child_pid);
ASSERT(WIFEXITED(status));
CHECKr(WEXITSTATUS(status));
return (NULL);
}
static void *
waiter(void *arg)
{
int status;
pid_t pid;
SET_NAME("waiter");
CHECKr(pthread_mutex_lock(&waiter_mutex));
printf("waiting for child\n");
CHECKe(pid = wait(&status));
ASSERT(WIFEXITED(status));
ASSERT(WEXITSTATUS(status) == 0);
printf("child exited\n");
CHECKr(pthread_mutex_unlock(&waiter_mutex));
return (NULL);
}
static void
test_contention_lock(pthread_mutex_t *mutex)
{
pthread_t thread;
printf(" test_contention_lock()\n");
CHECKr(pthread_mutex_lock(mutex));
contention_variable = 0;
CHECKr(pthread_create(&thread, NULL, thread_contention, mutex));
pthread_yield();
contention_variable = 1;
CHECKr(pthread_mutex_unlock(mutex));
pthread_yield();
CHECKr(pthread_mutex_lock(mutex));
ASSERT(contention_variable == 2);
CHECKr(pthread_mutex_unlock(mutex));
}
static void
test_mutex_recursive(void)
{
pthread_mutexattr_t mutex_recursive_attr;
pthread_mutex_t mutex_recursive;
printf("test_mutex_recursive()\n");
CHECKr(pthread_mutexattr_init(&mutex_recursive_attr));
CHECKr(pthread_mutexattr_settype(&mutex_recursive_attr,
PTHREAD_MUTEX_RECURSIVE));
CHECKr(pthread_mutex_init(&mutex_recursive, &mutex_recursive_attr));
test_mutex_recursive_lock(&mutex_recursive);
test_mutex_recursive_trylock(&mutex_recursive);
/* Posix D10 says undefined behaviour? */
ASSERTe(pthread_mutex_unlock(&mutex_recursive), != 0);
CHECKr(pthread_mutex_destroy(&mutex_recursive));
}
static void
test_mutex_debug(void)
{
pthread_mutexattr_t mutex_debug_attr;
pthread_mutex_t mutex_debug;
printf("test_mutex_debug()\n");
CHECKr(pthread_mutexattr_init(&mutex_debug_attr));
CHECKr(pthread_mutexattr_settype(&mutex_debug_attr,
PTHREAD_MUTEX_ERRORCHECK));
CHECKr(pthread_mutex_init(&mutex_debug, &mutex_debug_attr));
test_nocontention_lock(&mutex_debug);
test_nocontention_trylock(&mutex_debug);
test_contention_lock(&mutex_debug);
test_debug_double_lock(&mutex_debug);
test_debug_double_unlock(&mutex_debug);
CHECKr(pthread_mutex_destroy(&mutex_debug));
}
void *
thr_join(void *arg)
{
pthread_t tid = *(pthread_t *)arg;
void *retval;
CHECKr(pthread_join(tid, &retval));
return (retval);
}
int
main(int argc, char *argv[])
{
pthread_t thread;
pthread_attr_t attr;
struct sockaddr_in addr;
int ret;
/* fork and have the child open a listener */
signal(SIGCHLD, SIG_IGN);
switch (fork()) {
case 0:
server();
exit(0);
case -1:
exit(errno);
default:
sleep(2);
}
/* Open up a TCP connection to the local discard port */
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
addr.sin_port = htons(TEST_PORT);
CHECKe(fd = socket(AF_INET, SOCK_STREAM, 0));
printf("main: connecting to test port with fd %d\n", fd);
ret = connect(fd, (struct sockaddr *)&addr, sizeof addr);
if (ret == -1)
fprintf(stderr, "connect() failed\n");
CHECKe(ret);
printf("main: connected on fd %d\n", fd);
CHECKr(pthread_attr_init(&attr));
CHECKr(pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED));
printf("starting child thread\n");
CHECKr(pthread_create(&thread, &attr, new_thread, NULL));
sleep(1);
printf("main: closing fd %d\n", fd);
CHECKe(close(fd));
printf("main: closed\n");
sleep(1);
SUCCEED;
}
static void *
sock_accept(void *arg)
{
pthread_t connect_thread;
struct sockaddr_in sin;
int s;
CHECKe(s = socket(AF_INET, SOCK_STREAM, 0));
bzero(&sin, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_len = sizeof(sin);
sin.sin_port = htons(6543);
sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
CHECKe(bind(s, (struct sockaddr *)&sin, sizeof(sin)));
CHECKe(listen(s, 2));
CHECKr(pthread_create(&connect_thread, NULL, sock_connect, NULL));
CHECKr(pthread_join(connect_thread, NULL));
return (NULL);
}
int
main(int argc, char *argv[])
{
pthread_t waiting_threads[WAITING_THREADS];
pthread_t deadlock_thread;
struct sockaddr_in addr;
int fd, newfd, i, j;
void *value_ptr;
struct timespec rqtp;
rqtp.tv_sec = 0;
rqtp.tv_nsec = 1000000;
bzero((char *) &addr, sizeof addr);
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
addr.sin_port = htons(0);
CHECKr(pthread_create(&deadlock_thread, NULL,
deadlock_detector, NULL));
CHECKe(fd = socket(AF_INET, SOCK_DGRAM, 0));
CHECKr(bind(fd, (struct sockaddr *)&addr, sizeof(addr)));
CHECKe(newfd = socket(AF_INET, SOCK_DGRAM, 0));
CHECKr(bind(newfd, (struct sockaddr *)&addr, sizeof(addr)));
for (i = 0; i < ITERATIONS; i++) {
for (j = 0; j < WAITING_THREADS; j++)
CHECKr(pthread_create(&waiting_threads[j], NULL,
waiting_read, (void *)&newfd));
nanosleep(&rqtp, NULL);
CHECKe(dup2(fd, newfd));
for (j = 0; j < WAITING_THREADS; j++) {
CHECKr(pthread_join(waiting_threads[j], &value_ptr));
ASSERT(value_ptr == (void *)EBADF);
}
}
SUCCEED;
}
int
main(int argc, char **argv)
{
struct sigaction sa;
pthread_t tid[2];
void *retval;
bzero(&sa, sizeof(sa));
sa.sa_handler = handler;
CHECKe(sigaction(SIGUSR1, &sa, NULL));
CHECKr(pthread_create(&tid[0], NULL, thr_sleep, NULL));
CHECKr(pthread_create(&tid[1], NULL, thr_join, &tid[0]));
sleep(2);
CHECKr(pthread_kill(tid[1], SIGUSR1));
sleep(2);
ASSERT(hits == 1);
CHECKr(pthread_join(tid[1], &retval));
ASSERT(retval == (void *)0);
SUCCEED;
}
static void *
sigwaiter (void *arg)
{
int signo;
SET_NAME("sigwaiter");
/* Block all of the signals that the function will wait for */
CHECKe(sigprocmask (SIG_BLOCK, &wait_mask, NULL));
while (sigcounts[SIGINT] == 0) {
printf("Sigwait waiting (thread %p)\n", pthread_self());
CHECKe(sigwait (&wait_mask, &signo));
sigcounts[signo]++;
printf ("Sigwait caught signal %d (%s)\n", signo,
strsignal(signo));
/* Allow the main thread to prevent the sigwait. */
CHECKr(pthread_mutex_lock (&waiter_mutex));
CHECKr(pthread_mutex_unlock (&waiter_mutex));
}
return (arg);
}
int
main(int argc, char *argv[])
{
pthread_t slpr;
ASSERT(signal(SIGALRM, handler) != SIG_ERR);
CHECKe(alarm(1));
CHECKr(pthread_create(&slpr, NULL, sleeper, NULL));
/* ASSERT(sleep(1) == 0); */
for (;;) {
if (alarmed) {
alarmed = 0;
CHECKe(write(STDOUT_FILENO, "!", 1));
}
}
}
int
main(int argc, char *argv[])
{
pthread_t thread;
int ch, count = 4;
long i;
/* Getopt variables. */
extern char *optarg;
while ((ch = getopt(argc, argv, "c:?")) != -1)
switch (ch)
{
case 'c':
count = atoi(optarg);
if ((count > 26) || (count < 2)) {
count = 2;
}
break;
case '?':
usage();
return(OK);
default:
usage();
return(NOTOK);
}
/* create the threads */
for (i = 0; i < count; i++)
CHECKr(pthread_create(&thread, NULL, new_thread,
(void*)(buf+i)));
/* give all threads a chance to run */
sleep (2);
ending = 1;
for (i = 0; i < count; i++)
ASSERT(x[i]); /* make sure each thread ran */
CHECKe(write(STDOUT_FILENO, "\n", 1));
SUCCEED;
}