int main()
{
int rc;
pthread_barrierattr_t ba;
pthread_barrier_t barriers [BARRIER_NUM];
int cnt;
/* Initialize the barrier attribute object */
rc = pthread_barrierattr_init(&ba);
if(rc != 0)
{
printf("Test FAILED: Error while initialize attribute object\n");
return PTS_FAIL;
}
/* Initialize BARRIER_NUM barrier objects, with count==1 */
for(cnt = 0; cnt < BARRIER_NUM; cnt++)
{
if(pthread_barrier_init(&barriers[cnt], &ba, 1) != 0)
{
printf("Error at %dth initialization\n", cnt);
return PTS_UNRESOLVED;
}
}
/* Destroy barrier attribute object */
rc = pthread_barrierattr_destroy(&ba);
if(rc != 0)
{
printf("Error at pthread_barrierattr_destroy() "
"return code: %d, %s", rc, strerror(rc));
return PTS_UNRESOLVED;
}
/* Check that pthread_barrier_wait can still be performed, even after the attributes
* object has been destroyed */
for(cnt = 0; cnt < BARRIER_NUM; cnt++)
{
rc = pthread_barrier_wait(&barriers[cnt]);
if(rc != 0 && rc != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf("Test Fail: Error at %dth wait, %s\n", cnt, strerror(rc));
return PTS_FAIL;
}
}
/* Cleanup */
for(cnt = 0; cnt < BARRIER_NUM; cnt++)
{
rc = pthread_barrier_destroy(&barriers[cnt]);
if(rc != 0)
{
printf("Error at %dth destruction, %s\n", cnt, strerror(rc));
return PTS_UNRESOLVED;
}
}
printf("Test PASSED\n");
return PTS_PASS;
}
static void benchmark_pthread_barrier_init(void)
{
benchmark_timer_t end_time;
int status;
pthread_barrierattr_t attr;
/* initialize attr with default attributes
* for all of the attributes defined by the implementation
*/
status = pthread_barrierattr_init( &attr );
rtems_test_assert( status == 0 );
benchmark_timer_initialize();
status = pthread_barrier_init( &barrier,&attr, 1 );
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
put_time(
"pthread_barrier_init",
end_time,
1, /* Only executed once */
0,
0
);
}
void *POSIX_Init(
void *argument
)
{
int i;
int status;
pthread_t threadId;
pthread_barrierattr_t attr;
TEST_BEGIN();
for ( i=0 ; i < OPERATION_COUNT - 1 ; i++ ) {
status = pthread_create( &threadId, NULL, Middle, NULL );
rtems_test_assert( !status );
}
status = pthread_create( &threadId, NULL, Low, NULL );
rtems_test_assert( !status );
/*
* Create the barrier with default attributes and deliberately
* create it after the Threads so if they run too early, they
* wull fail with an error.
*/
status = pthread_barrierattr_init( &attr );
rtems_test_assert( status == 0 );
/*
* Set threshold on count higher than number of threads so all will
* block.
*/
status = pthread_barrier_init( &barrier,&attr, OPERATION_COUNT + 2 );
rtems_test_assert( status == 0 );
/*
* Let other threads run through their initialization
*/
sched_yield();
/*
* Start the timer and start the blocking barrier wait chain through
* all the other tasks.
*/
benchmark_timer_initialize();
/* blocking barrier call */
status = pthread_barrier_wait( &barrier );
rtems_test_assert( status == 0 );
return NULL;
}
int pthread_test_barrier3()
{
pthread_t t;
pthread_barrierattr_t ba;
assert(pthread_barrierattr_init(&ba) == 0);
assert(pthread_barrierattr_setpshared(&ba, PTHREAD_PROCESS_PRIVATE) == 0);
assert(pthread_barrier_init(&barrier, &ba, 1) == 0);
assert(pthread_create(&t, NULL, func, NULL) == 0);
assert(pthread_join(t, (void **) &result) == 0);
assert(result == PTHREAD_BARRIER_SERIAL_THREAD);
assert(pthread_barrier_destroy(&barrier) == 0);
assert(pthread_barrierattr_destroy(&ba) == 0);
return 0;
}
int main()
{
int rc;
pthread_barrierattr_t ba;
int pshared;
/* Initialize the barrier attribute object */
rc = pthread_barrierattr_init(&ba);
if (rc != 0)
{
printf("Test FAILED: Error while initialize attribute object\n");
return PTS_FAIL;
}
/* Get the pshared value of the initialized barrierattr object */
if (pthread_barrierattr_getpshared(&ba, &pshared) != 0)
{
printf("Error at pthread_barrierattr_getpshared()\n");
return PTS_UNRESOLVED;
}
/* The default should be PTHREAD_PROCESS_PRIVATE */
if (pshared != PTHREAD_PROCESS_PRIVATE)
{
printf("Test FAILED: The process shared attribute was not set to "
"default value\n");
return PTS_FAIL;
}
/* Cleanup */
rc = pthread_barrierattr_destroy(&ba);
if (rc != 0)
{
printf("Error at pthread_barrierattr_destroy() "
"return code: %d, %s", rc, strerror(rc));
return PTS_UNRESOLVED;
}
printf("Test PASSED\n");
return PTS_PASS;
}
int main()
{
#ifndef OS_DOES_NOT_SUPPORT_BARRIERS
pthread_barrierattr_t attr;
#endif
int rc;
puts( "*** POSIX Barrier Default Attributes Report ***" );
#ifndef OS_DOES_NOT_SUPPORT_BARRIERS
rc = pthread_barrierattr_init( &attr );
assert( rc == 0 );
print_shared( &attr );
#else
printf( "Barriers are not supported\n" );
#endif
puts( "*** END OF POSIX Barrier Default Attributes Report ***" );
exit( 0 );
}
int main()
{
/* Make sure there is process-shared capability. */
#ifndef PTHREAD_PROCESS_SHARED
fprintf(stderr,"process-shared attribute is not available for testing\n");
return PTS_UNSUPPORTED;
#endif
pthread_barrierattr_t ba;
int pshared = PTHREAD_PROCESS_PRIVATE + 1;
int rc;
/* Set pshared to an invalid value */
if (pshared == PTHREAD_PROCESS_SHARED)
{
pshared += 1;
}
/* Initialize a barrier attributes object */
if (pthread_barrierattr_init(&ba) != 0)
{
printf("Error at pthread_barrierattr_init()\n");
return PTS_UNRESOLVED;
}
/* Set process-shared attribute to an invalid value */
rc = pthread_barrierattr_setpshared(&ba, pshared);
if (rc == EINVAL)
printf("Test PASSED\n");
else
{
printf("Get return code: %d, %s\n", rc, strerror(rc));
printf("Test PASSED: Note*: Expected EINVAL, but standard says 'may' fail.\n");
}
return PTS_PASS;
}
//!Constructor
barrierattr_wrapper()
{
if(pthread_barrierattr_init(&m_attr)!=0 ||
pthread_barrierattr_setpshared(&m_attr, PTHREAD_PROCESS_SHARED)!= 0)
throw interprocess_exception("pthread_barrierattr_xxx failed");
}
static void *
tf (void *arg)
{
struct flock fl =
{
.l_type = F_WRLCK,
.l_start = 0,
.l_whence = SEEK_SET,
.l_len = 10
};
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0)
{
puts ("fourth fcntl failed");
exit (1);
}
pthread_mutex_unlock (&lock);
pthread_mutex_lock (&lock2);
return NULL;
}
static int
do_test (void)
{
char tmp[] = "/tmp/tst-flock2-XXXXXX";
fd = mkstemp (tmp);
if (fd == -1)
{
puts ("mkstemp failed");
return 1;
}
unlink (tmp);
int i;
for (i = 0; i < 20; ++i)
write (fd, "foobar xyzzy", 12);
pthread_barrier_t *b;
b = mmap (NULL, sizeof (pthread_barrier_t), PROT_READ | PROT_WRITE,
MAP_SHARED, fd, 0);
if (b == MAP_FAILED)
{
puts ("mmap failed");
return 1;
}
pthread_barrierattr_t ba;
if (pthread_barrierattr_init (&ba) != 0)
{
puts ("barrierattr_init failed");
return 1;
}
if (pthread_barrierattr_setpshared (&ba, PTHREAD_PROCESS_SHARED) != 0)
{
puts ("barrierattr_setpshared failed");
return 1;
}
if (pthread_barrier_init (b, &ba, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
if (pthread_barrierattr_destroy (&ba) != 0)
{
puts ("barrierattr_destroy failed");
return 1;
}
struct flock fl =
{
.l_type = F_WRLCK,
.l_start = 0,
.l_whence = SEEK_SET,
.l_len = 10
};
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0)
{
puts ("first fcntl failed");
return 1;
}
pid_t pid = fork ();
if (pid == -1)
{
puts ("fork failed");
return 1;
}
if (pid == 0)
{
/* Make sure the child does not stay around indefinitely. */
alarm (10);
/* Try to get the lock. */
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0)
{
puts ("child: second flock succeeded");
return 1;
}
}
pthread_barrier_wait (b);
if (pid != 0)
{
fl.l_type = F_UNLCK;
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0)
{
puts ("third fcntl failed");
return 1;
}
}
pthread_barrier_wait (b);
pthread_t th;
if (pid == 0)
{
if (pthread_mutex_lock (&lock) != 0)
{
puts ("1st locking of lock failed");
return 1;
}
if (pthread_mutex_lock (&lock2) != 0)
{
puts ("1st locking of lock2 failed");
return 1;
}
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("pthread_create failed");
return 1;
}
if (pthread_mutex_lock (&lock) != 0)
{
puts ("2nd locking of lock failed");
return 1;
}
puts ("child locked file");
}
pthread_barrier_wait (b);
if (pid != 0)
{
fl.l_type = F_WRLCK;
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0)
{
puts ("fifth fcntl succeeded");
return 1;
}
puts ("file locked by child");
}
pthread_barrier_wait (b);
if (pid == 0)
{
if (pthread_mutex_unlock (&lock2) != 0)
{
puts ("unlock of lock2 failed");
return 1;
}
if (pthread_join (th, NULL) != 0)
{
puts ("join failed");
return 1;
}
puts ("child's thread terminated");
}
pthread_barrier_wait (b);
if (pid != 0)
{
fl.l_type = F_WRLCK;
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0)
{
puts ("fifth fcntl succeeded");
return 1;
}
puts ("file still locked");
}
pthread_barrier_wait (b);
if (pid == 0)
{
_exit (0);
}
int status;
if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
{
puts ("waitpid failed");
return 1;
}
puts ("child terminated");
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0)
{
puts ("sixth fcntl failed");
return 1;
}
return status;
}
static void *
tf (void *arg)
{
if (pthread_mutex_lock (&lock))
{
puts ("1st locking of lock failed");
exit (1);
}
struct flock fl =
{
.l_type = F_WRLCK,
.l_start = 0,
.l_whence = SEEK_SET,
.l_len = 10
};
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0)
{
puts ("fourth fcntl failed");
exit (1);
}
pthread_mutex_unlock (&lock);
pthread_mutex_lock (&lock2);
return NULL;
}
static int
do_test (void)
{
fd = create_temp_file("tst-flock2-", NULL);
if (fd == -1)
{
puts ("create_temp_file failed");
return 1;
}
int i;
for (i = 0; i < 20; ++i)
write (fd, "foobar xyzzy", 12);
pthread_barrier_t *b;
#ifdef __EMX__
APIRET arc;
arc = DosAllocSharedMem ((PPVOID) &b, NULL, sizeof (pthread_barrier_t),
PAG_READ | PAG_WRITE | PAG_COMMIT | OBJ_GETTABLE);
if (arc)
{
puts ("DosAllocSharedMem failed");
return 1;
}
b->hmtx = NULLHANDLE;
arc = DosCreateMutexSem (NULL, &b->hmtx, DC_SEM_SHARED, FALSE);
if (arc)
{
puts ("DosCreateMutexSem failed");
return 1;
}
b->hev = NULLHANDLE;
arc = DosCreateEventSem (NULL, &b->hev, DC_SEM_SHARED | DCE_AUTORESET, FALSE);
if (arc)
{
puts ("DosCreateEventSem failed");
return 1;
}
b->cnt = 0;
b->cnt_max = 2;
#else
b = mmap (NULL, sizeof (pthread_barrier_t), PROT_READ | PROT_WRITE,
MAP_SHARED, fd, 0);
if (b == MAP_FAILED)
{
puts ("mmap failed");
return 1;
}
pthread_barrierattr_t ba;
if (pthread_barrierattr_init (&ba) != 0)
{
puts ("barrierattr_init failed");
return 1;
}
if (pthread_barrierattr_setpshared (&ba, PTHREAD_PROCESS_SHARED) != 0)
{
puts ("barrierattr_setpshared failed");
return 1;
}
if (pthread_barrier_init (b, &ba, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
if (pthread_barrierattr_destroy (&ba) != 0)
{
puts ("barrierattr_destroy failed");
return 1;
}
#endif
struct flock fl =
{
.l_type = F_WRLCK,
.l_start = 0,
.l_whence = SEEK_SET,
.l_len = 10
};
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0)
{
puts ("first fcntl failed");
return 1;
}
pid_t pid = fork ();
if (pid == -1)
{
puts ("fork failed");
return 1;
}
if (pid == 0)
{
#ifdef __EMX__
arc = DosGetSharedMem (b, PAG_READ | PAG_WRITE);
if (arc)
{
puts ("DosGetSharedMem failed");
return 1;
}
arc = DosOpenMutexSem (NULL, &b->hmtx);
if (arc)
{
puts ("DosOpenMutexSem failed");
return 1;
}
arc = DosOpenEventSem (NULL, &b->hev);
if (arc)
{
puts ("DosOpenEventSem failed");
return 1;
}
#endif
/* Make sure the child does not stay around indefinitely. */
alarm (10);
/* Try to get the lock. */
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0)
{
puts ("child: second flock succeeded");
return 1;
}
}
pthread_barrier_wait (b);
if (pid != 0)
{
fl.l_type = F_UNLCK;
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0)
{
puts ("third fcntl failed");
return 1;
}
}
pthread_barrier_wait (b);
pthread_t th;
if (pid == 0)
{
if (pthread_mutex_lock (&lock2) != 0)
{
puts ("1st locking of lock2 failed");
return 1;
}
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("pthread_create failed");
return 1;
}
/* Let the new thread run. */
sleep (1);
if (pthread_mutex_lock (&lock) != 0)
{
puts ("2nd locking of lock failed");
return 1;
}
puts ("child locked file");
}
pthread_barrier_wait (b);
if (pid != 0)
{
fl.l_type = F_WRLCK;
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0)
{
puts ("fifth fcntl succeeded");
return 1;
}
puts ("file locked by child");
}
pthread_barrier_wait (b);
if (pid == 0)
{
if (pthread_mutex_unlock (&lock2) != 0)
{
puts ("unlock of lock2 failed");
return 1;
}
if (pthread_join (th, NULL) != 0)
{
puts ("join failed");
return 1;
}
puts ("child's thread terminated");
}
pthread_barrier_wait (b);
if (pid != 0)
{
fl.l_type = F_WRLCK;
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0)
{
puts ("fifth fcntl succeeded");
return 1;
}
puts ("file still locked");
}
pthread_barrier_wait (b);
if (pid == 0)
{
_exit (0);
}
int status;
if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
{
puts ("waitpid failed");
return 1;
}
puts ("child terminated");
if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0)
{
puts ("sixth fcntl failed");
return 1;
}
return status;
}
//!Constructor
barrierattr_wrapper()
{
if(pthread_barrierattr_init(&m_attr)!=0 ||
pthread_barrierattr_setpshared(&m_attr, PTHREAD_PROCESS_SHARED)!= 0)
throw boost::interprocess::interprocess_exception();
}
void barrier_test(void)
{
pthread_t barrier_thread[CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS];
pthread_addr_t result;
pthread_attr_t attr;
pthread_barrierattr_t barrierattr;
int status;
int i;
printf("barrier_test: Initializing barrier\n");
status = pthread_barrierattr_init(&barrierattr);
if (status != OK)
{
printf("barrier_test: pthread_barrierattr_init failed, status=%d\n",
status);
}
status = pthread_barrier_init(&barrier, &barrierattr,
CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS);
if (status != OK)
{
printf("barrier_test: pthread_barrierattr_init failed, status=%d\n",
status);
}
/* Create the barrier */
(void)pthread_barrierattr_init(&barrierattr);
/* Start CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS thread instances */
status = pthread_attr_init(&attr);
if (status != OK)
{
printf("barrier_test: pthread_attr_init failed, status=%d\n",
status);
}
for (i = 0; i < CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS; i++)
{
status = pthread_create(&barrier_thread[i], &attr, barrier_func,
(pthread_addr_t)((uintptr_t)i));
if (status != 0)
{
printf("barrier_test: Error in thread %d create, status=%d\n",
i, status);
printf("barrier_test: Test aborted with waiting threads\n");
goto abort_test;
}
else
{
printf("barrier_test: Thread %d created\n", i);
}
}
FFLUSH();
/* Wait for all thread instances to complete */
for (i = 0; i < CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS; i++)
{
status = pthread_join(barrier_thread[i], &result);
if (status != 0)
{
printf("barrier_test: Error in thread %d join, status=%d\n",
i, status);
}
else
{
printf("barrier_test: Thread %d completed with result=%p\n",
i, result);
}
}
/* Destroy the barrier */
abort_test:
status = pthread_barrier_destroy(&barrier);
if (status != OK)
{
printf("barrier_test: pthread_barrier_destroy failed, status=%d\n",
status);
}
status = pthread_barrierattr_destroy(&barrierattr);
if (status != OK)
{
printf("barrier_test: pthread_barrierattr_destroy failed, status=%d\n",
status);
}
FFLUSH();
}
int
main (int argc, char **argv)
{
pthread_barrierattr_t attr;
pthread_barrier_t barrier;
int i, j;
error_t err;
pthread_t tid[THREADS];
int havesyncs;
err = pthread_barrierattr_init (&attr);
if (err)
error (1, err, "pthread_barrierattr_init");
err = pthread_barrierattr_getpshared (&attr, &i);
if (err)
error (1, err, "pthread_barrierattr_getpshared");
assert (i == PTHREAD_PROCESS_PRIVATE || i == PTHREAD_PROCESS_SHARED);
err = pthread_barrierattr_setpshared (&attr, PTHREAD_PROCESS_PRIVATE);
if (err)
error (1, err, "pthread_barrierattr_setpshared");
err = pthread_barrier_init (&barrier, &attr, THREADS + 1);
if (err)
error (1, err, "pthread_barrier_init");
for (j = 0; j < WAITS; j ++)
{
for (i = 0; i < THREADS; i ++)
{
err = pthread_create (&tid[i], 0, dowait, &barrier);
if (err)
error (1, err, "pthread_create (%d)", i);
}
printf ("Manager will now call pthread_barrier_wait.\n");
havesyncs
= pthread_barrier_wait (&barrier) == PTHREAD_BARRIER_SERIAL_THREAD
? 1 : 0;
for (i = THREADS - 1; i >= 0; i --)
{
void *ret;
err = pthread_join (tid[i], &ret);
if (err)
error (1, err, "pthread_join");
switch ((int) ret)
{
case 0:
break;
case PTHREAD_BARRIER_SERIAL_THREAD:
havesyncs ++;
break;
default:
assert (! "Unknown value returned from pthread_barrier_wait.");
break;
}
}
printf ("\n");
assert (havesyncs == 1);
}
return 0;
}
int main()
{
/* Make sure there is process-shared capability. */
#ifndef PTHREAD_PROCESS_SHARED
fprintf(stderr,"process-shared attribute is not available for testing\n");
return PTS_UNSUPPORTED;
#endif
static pthread_barrier_t* barrier;
pthread_barrierattr_t ba;
int pshared = PTHREAD_PROCESS_SHARED;
char shm_name[] = "tmp_pthread_barrierattr_getpshared";
int shm_fd;
int pid;
int loop;
int serial = 0;
int rc;
int status = 0;
struct sigaction act;
/* Set up parent to handle SIGALRM */
act.sa_flags = 0;
act.sa_handler = sig_handler;
sigfillset(&act.sa_mask);
sigaction(SIGALRM, &act, 0);
/* Initialize a barrier attributes object */
if(pthread_barrierattr_init(&ba) != 0)
{
printf("Error at pthread_barrierattr_init()\n");
return PTS_UNRESOLVED;
}
/* Set the pshard value to private to shared */
if(pthread_barrierattr_setpshared(&ba, pshared) != 0)
{
printf("Error at pthread_barrierattr_setpshared()\n");
return PTS_UNRESOLVED;
}
if(pthread_barrierattr_getpshared(&ba, &pshared) != 0)
{
printf("Test FAILED: Error at pthread_barrierattr_getpshared()\n");
return PTS_FAIL;
}
if(pshared != PTHREAD_PROCESS_SHARED)
{
printf("Test FAILED: Incorrect pshared value %d\n", pshared);
return PTS_FAIL;
}
/* Create shared object */
shm_unlink(shm_name);
shm_fd = shm_open(shm_name, O_RDWR|O_CREAT|O_EXCL, S_IRUSR|S_IWUSR);
if(shm_fd == -1)
{
perror("Error at shm_open()");
return PTS_UNRESOLVED;
}
if(ftruncate(shm_fd, sizeof(pthread_barrier_t)) != 0)
{
perror("Error at ftruncate()");
shm_unlink(shm_name);
return PTS_UNRESOLVED;
}
/* Map the shared memory object to my memory */
barrier = mmap(NULL, sizeof(pthread_barrier_t), PROT_READ|PROT_WRITE,
MAP_SHARED, shm_fd, 0);
if(barrier == MAP_FAILED)
{
perror("Error at first mmap()");
shm_unlink(shm_name);
return PTS_UNRESOLVED;
}
/* Initialize a barrier */
if((pthread_barrier_init(barrier, &ba, 2)) != 0)
{
printf("Error at pthread_barrier_init()\n");
return PTS_UNRESOLVED;
}
/* Cleanup */
if((pthread_barrierattr_destroy(&ba)) != 0)
{
printf("Error at pthread_barrierattr_destroy()\n");
return PTS_UNRESOLVED;
}
/* Fork a child process */
pid = fork();
if(pid == -1)
{
perror("Error at fork()");
return PTS_UNRESOLVED;
}
else if(pid == 0)
{
/* Child */
/* Map the shared object to child's memory */
barrier = mmap(NULL, sizeof(pthread_barrier_t), PROT_READ|PROT_WRITE,
MAP_SHARED, shm_fd, 0);
if(barrier == MAP_FAILED)
{
perror("child: Error at first mmap()");
return PTS_UNRESOLVED;
}
}
else
{
printf("parent pid : %d, child pid : %d\n", getpid(), pid);
printf("parent: send me SIGALRM 2 secs later in case I am blocked\n");
alarm(2);
}
for(loop = 0; loop < LOOP_NUM; loop++)
{
rc = pthread_barrier_wait(barrier);
if(rc != 0 && rc != PTHREAD_BARRIER_SERIAL_THREAD)
{
printf("Test FAILED: %d: pthread_barrier_wait() got unexpected "
"return code : %d\n" , getpid(), rc);
exit(PTS_FAIL);
}
else if(rc == PTHREAD_BARRIER_SERIAL_THREAD)
{
serial++;
printf("process %d: get PTHREAD_BARRIER_SERIAL_THREAD\n"
, getpid());
}
}
if(pid > 0)
{
/* parent */
if( wait(&status) != pid)
{
printf("parent: error at waitpid()\n");
return PTS_UNRESOLVED;
}
if(!WIFEXITED(status))
{
printf("Child exited abnormally\n");
return PTS_UNRESOLVED;
}
if((WEXITSTATUS(status) + serial) != LOOP_NUM)
{
printf("status = %d\n", status);
printf("serial = %d\n", serial);
printf("Test FAILED: One of the two processes should get "
"PTHREAD_BARRIER_SERIAL_THREAD\n");
return PTS_FAIL;
}
/* Cleanup */
if(pthread_barrier_destroy(barrier) != 0)
{
printf("Error at pthread_barrier_destroy()");
return PTS_UNRESOLVED;
}
if((shm_unlink(shm_name)) != 0)
{
perror("Error at shm_unlink()");
return PTS_UNRESOLVED;
}
printf("Test PASSED\n");
return PTS_PASS;
}
if(pid == 0)
{
exit(serial);
}
return PTS_UNRESOLVED;
}
static int
do_test (void)
{
int result = 0;
char tmpfname[] = "/tmp/tst-mqueue5-barrier.XXXXXX";
int fd = mkstemp (tmpfname);
if (fd == -1)
{
printf ("cannot open temporary file: %m\n");
return 1;
}
/* Make sure it is always removed. */
unlink (tmpfname);
/* Create one page of data. */
size_t ps = sysconf (_SC_PAGESIZE);
char data[ps];
memset (data, '\0', ps);
/* Write the data to the file. */
if (write (fd, data, ps) != (ssize_t) ps)
{
puts ("short write");
return 1;
}
void *mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (mem == MAP_FAILED)
{
printf ("mmap failed: %m\n");
return 1;
}
pthread_barrier_t *b2;
b2 = (pthread_barrier_t *) (((uintptr_t) mem + __alignof (pthread_barrier_t))
& ~(__alignof (pthread_barrier_t) - 1));
pthread_barrier_t *b3;
b3 = b2 + 1;
pthread_barrierattr_t a;
if (pthread_barrierattr_init (&a) != 0)
{
puts ("barrierattr_init failed");
return 1;
}
if (pthread_barrierattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
{
puts ("barrierattr_setpshared failed, could not test");
return 0;
}
if (pthread_barrier_init (b2, &a, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
if (pthread_barrier_init (b3, &a, 3) != 0)
{
puts ("barrier_init failed");
return 1;
}
if (pthread_barrierattr_destroy (&a) != 0)
{
puts ("barrierattr_destroy failed");
return 1;
}
char name[sizeof "/tst-mqueue5-" + sizeof (pid_t) * 3];
snprintf (name, sizeof (name), "/tst-mqueue5-%u", getpid ());
struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 };
mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
if (q == (mqd_t) -1)
{
printf ("mq_open failed with: %m\n");
return result;
}
else
add_temp_mq (name);
struct sigevent ev;
memset (&ev, 0xaa, sizeof (ev));
ev.sigev_notify = SIGEV_NONE;
if (mq_notify (q, &ev) != 0)
{
printf ("mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
result = 1;
}
if (mq_notify (q, &ev) == 0)
{
puts ("second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded");
result = 1;
}
else if (errno != EBUSY)
{
printf ("second mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
result = 1;
}
result |= mqsend (q);
if (mq_notify (q, &ev) != 0)
{
printf ("third mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
result = 1;
}
result |= mqrecv (q);
if (mq_notify (q, NULL) != 0)
{
printf ("mq_notify (q, NULL) failed with: %m\n");
result = 1;
}
if (mq_notify (q, NULL) != 0)
{
/* Implementation-defined behaviour, so don't fail,
just inform. */
printf ("second mq_notify (q, NULL) failed with: %m\n");
}
struct sigaction sa = { .sa_sigaction = rtmin_handler,
.sa_flags = SA_SIGINFO };
sigemptyset (&sa.sa_mask);
sigaction (SIGRTMIN, &sa, NULL);
memset (&ev, 0x55, sizeof (ev));
ev.sigev_notify = SIGEV_SIGNAL;
ev.sigev_signo = SIGRTMIN;
ev.sigev_value.sival_int = 26;
if (mq_notify (q, &ev) != 0)
{
printf ("mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n");
result = 1;
}
ev.sigev_value.sival_ptr = &ev;
if (mq_notify (q, &ev) == 0)
{
puts ("second mq_notify (q, { SIGEV_SIGNAL }) unexpectedly succeeded");
result = 1;
}
else if (errno != EBUSY)
{
printf ("second mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n");
result = 1;
}
if (rtmin_cnt != 0)
{
puts ("SIGRTMIN signal caught too early");
result = 1;
}
result |= mqsend (q);
if (rtmin_cnt != 1)
{
puts ("SIGRTMIN signal did not arrive");
result = 1;
}
else if (rtmin_pid != getpid ()
|| rtmin_uid != getuid ()
|| rtmin_code != SI_MESGQ
|| rtmin_sigval.sival_int != 26)
{
printf ("unexpected siginfo_t fields: pid %u (%u), uid %u (%u), code %d (%d), si_int %d (26)\n",
rtmin_pid, getpid (), rtmin_uid, getuid (),
rtmin_code, SI_MESGQ, rtmin_sigval.sival_int);
result = 1;
}
ev.sigev_value.sival_int = 75;
if (mq_notify (q, &ev) != 0)
{
printf ("third mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n");
result = 1;
}
result |= mqrecv (q);
if (mq_notify (q, NULL) != 0)
{
printf ("mq_notify (q, NULL) failed with: %m\n");
result = 1;
}
memset (&ev, 0x33, sizeof (ev));
ev.sigev_notify = SIGEV_NONE;
if (mq_notify (q, &ev) != 0)
{
printf ("fourth mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
result = 1;
}
pid_t pid = fork ();
if (pid == -1)
{
printf ("fork () failed: %m\n");
mq_unlink (name);
return 1;
}
if (pid == 0)
do_child (name, b2, b3, q);
/* Child unsuccessfully attempts to mq_notify. */
(void) pthread_barrier_wait (b2);
result |= mqsend (q);
(void) pthread_barrier_wait (b2);
/* Child successfully calls mq_notify SIGEV_SIGNAL now. */
result |= mqrecv (q);
(void) pthread_barrier_wait (b2);
memset (&ev, 0xbb, sizeof (ev));
ev.sigev_notify = SIGEV_SIGNAL;
ev.sigev_signo = SIGRTMIN;
ev.sigev_value.sival_int = 15;
if (mq_notify (q, &ev) == 0)
{
puts ("fourth mq_notify (q, { SIGEV_SIGNAL }) unexpectedly succeeded");
result = 1;
}
else if (errno != EBUSY)
{
printf ("fourth mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n");
result = 1;
}
result |= mqsend (q);
if (mq_notify (q, &ev) != 0)
{
printf ("fifth mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n");
result = 1;
}
if (rtmin_cnt != 1)
{
puts ("SIGRTMIN signal caught too early");
result = 1;
}
result |= mqrecv (q);
(void) pthread_barrier_wait (b2);
/* Child verifies caught SIGRTMIN signal. */
/* Child calls mq_send (q) which triggers SIGRTMIN signal here. */
(void) pthread_barrier_wait (b2);
/* Child mq_open's another mqd_t for the same queue (q2). */
if (rtmin_cnt != 2)
{
puts ("SIGRTMIN signal did not arrive");
result = 1;
}
else if (rtmin_pid != pid
|| rtmin_uid != getuid ()
|| rtmin_code != SI_MESGQ
|| rtmin_sigval.sival_int != 15)
{
printf ("unexpected siginfo_t fields: pid %u (%u), uid %u (%u), code %d (%d), si_int %d (15)\n",
rtmin_pid, pid, rtmin_uid, getuid (),
rtmin_code, SI_MESGQ, rtmin_sigval.sival_int);
result = 1;
}
result |= mqrecv (q);
(void) pthread_barrier_wait (b2);
/* Child successfully calls mq_notify { SIGEV_SIGNAL } on q2. */
(void) pthread_barrier_wait (b2);
memset (&ev, 0xbb, sizeof (ev));
ev.sigev_notify = SIGEV_NONE;
if (mq_notify (q, &ev) == 0)
{
puts ("fifth mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded");
result = 1;
}
else if (errno != EBUSY)
{
printf ("fifth mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
result = 1;
}
(void) pthread_barrier_wait (b2);
/* Child calls mq_close on q2, which makes the queue available again for
notification. */
mqd_t q3 = mq_open (name, O_RDWR);
if (q3 == (mqd_t) -1)
{
printf ("mq_open q3 in parent failed with: %m\n");
result = 1;
}
(void) pthread_barrier_wait (b2);
memset (&ev, 0x12, sizeof (ev));
ev.sigev_notify = SIGEV_NONE;
if (mq_notify (q3, &ev) != 0)
{
printf ("mq_notify (q3, { SIGEV_NONE }) failed with: %m\n");
result = 1;
}
(void) pthread_barrier_wait (b2);
/* Child unsuccessfully attempts to mq_notify { SIGEV_SIGNAL } on q. */
(void) pthread_barrier_wait (b2);
if (mq_close (q3) != 0)
{
printf ("mq_close failed: %m\n");
result = 1;
}
(void) pthread_barrier_wait (b2);
/* Child successfully calls mq_notify { SIGEV_NONE } on q. */
/* Child successfully calls mq_notify NULL on q. */
(void) pthread_barrier_wait (b2);
/* Child creates new thread. */
/* Thread blocks on mqrecv (q). */
/* Child sleeps for 1sec so that thread has time to reach that point. */
/* Child successfully calls mq_notify { SIGEV_SIGNAL } on q. */
(void) pthread_barrier_wait (b2);
result |= mqsend (q);
(void) pthread_barrier_wait (b3);
/* Child verifies SIGRTMIN has not been sent. */
(void) pthread_barrier_wait (b3);
result |= mqsend (q);
(void) pthread_barrier_wait (b3);
/* Thread verifies SIGRTMIN has been caught. */
/* Thread calls mq_notify (q, { SIGEV_NONE }) to verify notification is now
available for registration. */
/* Thread calls mq_notify (q, NULL). */
(void) pthread_barrier_wait (b3);
/* Child calls mq_notify (q, { SIGEV_SIGNAL }). */
(void) pthread_barrier_wait (b3);
/* Thread calls mq_notify (q, NULL). */
(void) pthread_barrier_wait (b3);
result |= mqsend (q);
result |= mqrecv (q);
(void) pthread_barrier_wait (b3);
/* Child verifies SIGRTMIN has not been sent. */
/* Child calls mq_notify (q, { SIGEV_SIGNAL }). */
(void) pthread_barrier_wait (b3);
/* Thread opens a new O_RDONLY mqd_t (q4). */
/* Thread calls mq_notify (q4, NULL). */
/* Thread calls mq_close (q4). */
(void) pthread_barrier_wait (b3);
result |= mqsend (q);
result |= mqrecv (q);
(void) pthread_barrier_wait (b3);
/* Child verifies SIGRTMIN has not been sent. */
/* Child calls mq_notify (q, { SIGEV_SIGNAL }). */
(void) pthread_barrier_wait (b3);
/* Thread opens a new O_WRONLY mqd_t (q5). */
/* Thread calls mq_notify (q5, NULL). */
/* Thread calls mq_close (q5). */
(void) pthread_barrier_wait (b3);
result |= mqsend (q);
result |= mqrecv (q);
(void) pthread_barrier_wait (b3);
/* Child verifies SIGRTMIN has not been sent. */
int status;
if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
{
puts ("waitpid failed");
kill (pid, SIGKILL);
result = 1;
}
else if (!WIFEXITED (status) || WEXITSTATUS (status))
{
printf ("child failed with status %d\n", status);
result = 1;
}
if (mq_unlink (name) != 0)
{
printf ("mq_unlink failed: %m\n");
result = 1;
}
if (mq_close (q) != 0)
{
printf ("mq_close failed: %m\n");
result = 1;
}
if (mq_notify (q, NULL) == 0)
{
puts ("mq_notify on closed mqd_t unexpectedly succeeded");
result = 1;
}
else if (errno != EBADF)
{
printf ("mq_notify on closed mqd_t did not fail with EBADF: %m\n");
result = 1;
}
memset (&ev, 0x55, sizeof (ev));
ev.sigev_notify = SIGEV_NONE;
if (mq_notify (q, &ev) == 0)
{
puts ("mq_notify on closed mqd_t unexpectedly succeeded");
result = 1;
}
else if (errno != EBADF)
{
printf ("mq_notify on closed mqd_t did not fail with EBADF: %m\n");
result = 1;
}
return result;
}
static int
do_test (void)
{
size_t ps = sysconf (_SC_PAGESIZE);
char tmpfname[] = "/tmp/tst-mutex4.XXXXXX";
char data[ps];
void *mem;
int fd;
pthread_mutex_t *m;
pthread_mutexattr_t a;
pid_t pid;
char *p;
int err;
int s;
pthread_barrier_t *b;
pthread_barrierattr_t ba;
fd = mkstemp (tmpfname);
if (fd == -1)
{
printf ("cannot open temporary file: %m\n");
return 1;
}
/* Make sure it is always removed. */
unlink (tmpfname);
/* Create one page of data. */
memset (data, '\0', ps);
/* Write the data to the file. */
if (write (fd, data, ps) != (ssize_t) ps)
{
puts ("short write");
return 1;
}
mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (mem == MAP_FAILED)
{
printf ("mmap failed: %m\n");
return 1;
}
m = (pthread_mutex_t *) (((uintptr_t) mem + __alignof (pthread_mutex_t) - 1)
& ~(__alignof (pthread_mutex_t) - 1));
b = (pthread_barrier_t *) (((uintptr_t) (m + 1)
+ __alignof (pthread_barrier_t) - 1)
& ~(__alignof (pthread_barrier_t) - 1));
p = (char *) (b + 1);
if (pthread_mutexattr_init (&a) != 0)
{
puts ("mutexattr_init failed");
return 1;
}
if (pthread_mutexattr_getpshared (&a, &s) != 0)
{
puts ("1st mutexattr_getpshared failed");
return 1;
}
if (s != PTHREAD_PROCESS_PRIVATE)
{
puts ("default pshared value wrong");
return 1;
}
if (pthread_mutexattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
{
puts ("mutexattr_setpshared failed");
return 1;
}
if (pthread_mutexattr_getpshared (&a, &s) != 0)
{
puts ("2nd mutexattr_getpshared failed");
return 1;
}
if (s != PTHREAD_PROCESS_SHARED)
{
puts ("pshared value after setpshared call wrong");
return 1;
}
#ifdef ENABLE_PI
if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
{
puts ("pthread_mutexattr_setprotocol failed");
return 1;
}
#endif
if ((err = pthread_mutex_init (m, &a)) != 0)
{
#ifdef ENABLE_PI
if (err == ENOTSUP)
{
puts ("PI mutexes unsupported");
return 0;
}
#endif
puts ("mutex_init failed");
return 1;
}
if (pthread_mutex_lock (m) != 0)
{
puts ("mutex_lock failed");
return 1;
}
if (pthread_mutexattr_destroy (&a) != 0)
{
puts ("mutexattr_destroy failed");
return 1;
}
if (pthread_barrierattr_init (&ba) != 0)
{
puts ("barrierattr_init failed");
return 1;
}
if (pthread_barrierattr_setpshared (&ba, PTHREAD_PROCESS_SHARED) != 0)
{
puts ("barrierattr_setpshared failed");
return 1;
}
if (pthread_barrier_init (b, &ba, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
if (pthread_barrierattr_destroy (&ba) != 0)
{
puts ("barrierattr_destroy failed");
return 1;
}
err = pthread_mutex_trylock (m);
if (err == 0)
{
puts ("mutex_trylock succeeded");
return 1;
}
else if (err != EBUSY)
{
puts ("mutex_trylock didn't return EBUSY");
return 1;
}
*p = 0;
if (pthread_mutex_unlock (m) != 0)
{
puts ("parent: 1st mutex_unlock failed");
return 1;
}
puts ("going to fork now");
pid = fork ();
if (pid == -1)
{
puts ("fork failed");
return 1;
}
else if (pid == 0)
{
if (pthread_mutex_lock (m) != 0)
{
puts ("child: mutex_lock failed");
return 1;
}
int e = pthread_barrier_wait (b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("child: barrier_wait failed");
return 1;
}
if ((*p)++ != 0)
{
puts ("child: *p != 0");
return 1;
}
if (pthread_mutex_unlock (m) != 0)
{
puts ("child: mutex_unlock failed");
return 1;
}
puts ("child done");
}
else
{
int e = pthread_barrier_wait (b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("parent: barrier_wait failed");
return 1;
}
if (pthread_mutex_lock (m) != 0)
{
puts ("parent: 2nd mutex_lock failed");
return 1;
}
if (*p != 1)
{
puts ("*p != 1");
return 1;
}
if (pthread_mutex_unlock (m) != 0)
{
puts ("parent: 2nd mutex_unlock failed");
return 1;
}
if (pthread_mutex_destroy (m) != 0)
{
puts ("mutex_destroy failed");
return 1;
}
if (pthread_barrier_destroy (b) != 0)
{
puts ("barrier_destroy failed");
return 1;
}
puts ("parent done");
}
return 0;
}
int pthread_barrier_init(
pthread_barrier_t *barrier,
const pthread_barrierattr_t *attr,
unsigned int count
)
{
POSIX_Barrier_Control *the_barrier;
CORE_barrier_Attributes the_attributes;
pthread_barrierattr_t my_attr;
const pthread_barrierattr_t *the_attr;
/*
* Error check parameters
*/
if ( !barrier )
return EINVAL;
if ( count == 0 )
return EINVAL;
/*
* If the user passed in NULL, use the default attributes
*/
if ( attr ) {
the_attr = attr;
} else {
(void) pthread_barrierattr_init( &my_attr );
the_attr = &my_attr;
}
/*
* Now start error checking the attributes that we are going to use
*/
if ( !the_attr->is_initialized )
return EINVAL;
switch ( the_attr->process_shared ) {
case PTHREAD_PROCESS_PRIVATE: /* only supported values */
break;
case PTHREAD_PROCESS_SHARED:
default:
return EINVAL;
}
/*
* Convert from POSIX attributes to Core Barrier attributes
*/
the_attributes.discipline = CORE_BARRIER_AUTOMATIC_RELEASE;
the_attributes.maximum_count = count;
/*
* Enter dispatching critical section to allocate and initialize barrier
*/
_Thread_Disable_dispatch(); /* prevents deletion */
the_barrier = _POSIX_Barrier_Allocate();
if ( !the_barrier ) {
_Thread_Enable_dispatch();
return EAGAIN;
}
_CORE_barrier_Initialize( &the_barrier->Barrier, &the_attributes );
_Objects_Open_u32(
&_POSIX_Barrier_Information,
&the_barrier->Object,
0
);
/*
* Exit the critical section and return the user an operational barrier
*/
*barrier = the_barrier->Object.id;
_Thread_Enable_dispatch();
return 0;
}
static int
do_test (void)
{
char tmp[] = "/tmp/tst-signal1-XXXXXX";
int fd = mkstemp (tmp);
if (fd == -1)
{
puts ("mkstemp failed");
exit (1);
}
unlink (tmp);
int i;
for (i = 0; i < 20; ++i)
write (fd, "foobar xyzzy", 12);
b = mmap (NULL, sizeof (pthread_barrier_t), PROT_READ | PROT_WRITE,
MAP_SHARED, fd, 0);
if (b == MAP_FAILED)
{
puts ("mmap failed");
exit (1);
}
pthread_barrierattr_t ba;
if (pthread_barrierattr_init (&ba) != 0)
{
puts ("barrierattr_init failed");
exit (1);
}
if (pthread_barrierattr_setpshared (&ba, PTHREAD_PROCESS_SHARED) != 0)
{
puts ("barrierattr_setpshared failed");
exit (1);
}
if (pthread_barrier_init (b, &ba, 2) != 0)
{
puts ("barrier_init failed");
exit (1);
}
if (pthread_barrierattr_destroy (&ba) != 0)
{
puts ("barrierattr_destroy failed");
exit (1);
}
pid_t pid = fork ();
if (pid == -1)
{
puts ("fork failed");
exit (1);
}
if (pid == 0)
receiver ();
pthread_barrier_wait (b);
/* Wait a bit more. */
struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 };
nanosleep (&ts, NULL);
/* Send the signal. */
puts ("sending the signal now");
kill (pid, SIGINT);
/* Wait for the process to terminate. */
int status;
if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
{
puts ("wrong child reported terminated");
exit (1);
}
if (!WIFSIGNALED (status))
{
puts ("child wasn't signalled");
exit (1);
}
if (WTERMSIG (status) != SIGINT)
{
puts ("child not terminated with SIGINT");
exit (1);
}
return 0;
}
int
do_test (void)
{
char tmpfname[] = "/tmp/tst-mqueue3-barrier.XXXXXX";
int fd = mkstemp (tmpfname);
if (fd == -1)
{
printf ("cannot open temporary file: %m\n");
return 1;
}
/* Make sure it is always removed. */
unlink (tmpfname);
/* Create one page of data. */
size_t ps = sysconf (_SC_PAGESIZE);
char data[ps];
memset (data, '\0', ps);
/* Write the data to the file. */
if (write (fd, data, ps) != (ssize_t) ps)
{
puts ("short write");
return 1;
}
void *mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (mem == MAP_FAILED)
{
printf ("mmap failed: %m\n");
return 1;
}
pthread_barrier_t *b;
b = (pthread_barrier_t *) (((uintptr_t) mem + __alignof (pthread_barrier_t))
& ~(__alignof (pthread_barrier_t) - 1));
pthread_barrierattr_t a;
if (pthread_barrierattr_init (&a) != 0)
{
puts ("barrierattr_init failed");
return 1;
}
if (pthread_barrierattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
{
puts ("barrierattr_setpshared failed, could not test");
return 0;
}
if (pthread_barrier_init (b, &a, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
if (pthread_barrierattr_destroy (&a) != 0)
{
puts ("barrierattr_destroy failed");
return 1;
}
/* Name for the message queue. */
char mqname[sizeof ("/tst-mqueue3-") + 3 * sizeof (pid_t)];
snprintf (mqname, sizeof (mqname) - 1, "/tst-mqueue3-%ld",
(long int) getpid ());
/* Create the message queue. */
struct mq_attr attr = { .mq_maxmsg = MAXMSG, .mq_msgsize = MSGSIZE };
m = mq_open (mqname, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
if (m == -1)
{
if (errno == ENOSYS)
{
puts ("not implemented");
return 0;
}
puts ("mq_open failed");
return 1;
}
/* Unlink the message queue right away. */
if (mq_unlink (mqname) != 0)
{
puts ("mq_unlink failed");
return 1;
}
pid = fork ();
if (pid == -1)
{
puts ("fork failed");
return 1;
}
if (pid == 0)
{
/* Request notification via thread. */
struct sigevent ev;
ev.sigev_notify = SIGEV_THREAD;
ev.sigev_notify_function = fct;
ev.sigev_value.sival_ptr = NULL;
ev.sigev_notify_attributes = NULL;
/* Tell the kernel. */
if (mq_notify (m,&ev) != 0)
{
puts ("mq_notify failed");
exit (1);
}
/* Tell the parent we are ready. */
(void) pthread_barrier_wait (b);
/* Make sure the process goes away eventually. */
alarm (10);
/* Do nothing forever. */
while (1)
pause ();
}
/* Wait for the child process to register to notification method. */
(void) pthread_barrier_wait (b);
/* Send the message. */
if (mq_send (m, message, sizeof (message), 1) != 0)
{
kill (pid, SIGKILL);
puts ("mq_send failed");
return 1;
}
int r;
if (TEMP_FAILURE_RETRY (waitpid (pid, &r, 0)) != pid)
{
kill (pid, SIGKILL);
puts ("waitpid failed");
return 1;
}
return WIFEXITED (r) && WEXITSTATUS (r) == UNIQUE ? 0 : 1;
}
static int
do_test (void)
{
size_t ps = sysconf (_SC_PAGESIZE);
char tmpfname[] = "/tmp/tst-barrier2.XXXXXX";
char data[ps];
void *mem;
int fd;
pthread_barrier_t *b;
pthread_barrierattr_t a;
pid_t pid;
int serials = 0;
int cnt;
int status;
int p;
fd = mkstemp (tmpfname);
if (fd == -1)
{
printf ("cannot open temporary file: %m\n");
return 1;
}
/* Make sure it is always removed. */
unlink (tmpfname);
/* Create one page of data. */
memset (data, '\0', ps);
/* Write the data to the file. */
if (write (fd, data, ps) != (ssize_t) ps)
{
puts ("short write");
return 1;
}
mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (mem == MAP_FAILED)
{
printf ("mmap failed: %m\n");
return 1;
}
b = (pthread_barrier_t *) (((uintptr_t) mem + __alignof (pthread_barrier_t))
& ~(__alignof (pthread_barrier_t) - 1));
if (pthread_barrierattr_init (&a) != 0)
{
puts ("barrierattr_init failed");
return 1;
}
if (pthread_barrierattr_getpshared (&a, &p) != 0)
{
puts ("1st barrierattr_getpshared failed");
return 1;
}
if (p != PTHREAD_PROCESS_PRIVATE)
{
puts ("default pshared value wrong");
return 1;
}
if (pthread_barrierattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
{
puts ("barrierattr_setpshared failed");
return 1;
}
if (pthread_barrierattr_getpshared (&a, &p) != 0)
{
puts ("2nd barrierattr_getpshared failed");
return 1;
}
if (p != PTHREAD_PROCESS_SHARED)
{
puts ("pshared value after setpshared call wrong");
return 1;
}
if (pthread_barrier_init (b, &a, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
if (pthread_barrierattr_destroy (&a) != 0)
{
puts ("barrierattr_destroy failed");
return 1;
}
puts ("going to fork now");
pid = fork ();
if (pid == -1)
{
puts ("fork failed");
return 1;
}
/* Just to be sure we don't hang forever. */
alarm (4);
#define N 30
for (cnt = 0; cnt < N; ++cnt)
{
int e;
e = pthread_barrier_wait (b);
if (e == PTHREAD_BARRIER_SERIAL_THREAD)
++serials;
else if (e != 0)
{
printf ("%s: barrier_wait returned value %d != 0 and PTHREAD_BARRIER_SERIAL_THREAD\n",
pid == 0 ? "child" : "parent", e);
return 1;
}
}
alarm (0);
printf ("%s: was %d times the serial thread\n",
pid == 0 ? "child" : "parent", serials);
if (pid == 0)
/* The child. Pass the number of times we had the serializing
thread back to the parent. */
exit (serials);
if (waitpid (pid, &status, 0) != pid)
{
puts ("waitpid failed");
return 1;
}
if (!WIFEXITED (status))
{
puts ("child exited abnormally");
return 1;
}
if (WEXITSTATUS (status) + serials != N)
{
printf ("total number of serials is %d, expected %d\n",
WEXITSTATUS (status) + serials, N);
return 1;
}
return 0;
}
