libpthread-416.11.1.tar.gz

[apple/libpthread.git] / tests / pthread_threadid_np.c

diff --git a/tests/pthread_threadid_np.c b/tests/pthread_threadid_np.c
index 46eb527136fb58bd305982be4d5ed5cff71a610c..9529f2633a1556b71ea39e4b62e88916e0e00767 100644 (file)
--- a/tests/pthread_threadid_np.c
+++ b/tests/pthread_threadid_np.c
@@ -8,7 +8,7 @@
 
 extern __uint64_t __thread_selfid( void );
 
-static void *do_test(void * __unused arg)
+static void *do_test(void * arg)
 {
        uint64_t threadid = __thread_selfid();
        T_ASSERT_NE(threadid, (uint64_t)0, "__thread_selfid()");
@@ -21,6 +21,9 @@ static void *do_test(void * __unused arg)
        pth_threadid = _pthread_threadid_self_np_direct();
        T_EXPECT_EQ(threadid, pth_threadid, "pthread_threadid_np_direct()");
 
+       if (arg) {
+               *(uint64_t *)arg = pth_threadid;
+       }
        return NULL;
 }
 
@@ -31,9 +34,14 @@ T_DECL(pthread_threadid_np, "pthread_threadid_np",
        do_test(NULL);
 
        T_LOG("Pthread");
-       pthread_t pth;
-       T_ASSERT_POSIX_ZERO(pthread_create(&pth, NULL, do_test, NULL), NULL);
-       T_ASSERT_POSIX_ZERO(pthread_join(pth, NULL), NULL);
+       for (int i = 0; i < 100; i++) {
+               uint64_t tid1 = 0, tid2 = 0;
+               pthread_t pth;
+               T_ASSERT_POSIX_ZERO(pthread_create(&pth, NULL, do_test, &tid1), NULL);
+               T_EXPECT_POSIX_ZERO(pthread_threadid_np(pth, &tid2), NULL);
+               T_ASSERT_POSIX_ZERO(pthread_join(pth, NULL), NULL);
+               T_EXPECT_EQ(tid1, tid2, "parent and child agree");
+       }
 
        T_LOG("Workqueue Thread");
        dispatch_queue_t dq = dispatch_queue_create("myqueue", NULL);