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Merge "Fix potential race condition on CTS TC pthread_gettid_np" into marshmallow-cts-dev am: 2010fb6722 

am: eebe01b523

* commit 'eebe01b523075c0634b04463c210510f192f154d':
  Fix potential race condition on CTS TC pthread_gettid_np
This commit is contained in:
Daniel Xie 2015-11-11 19:00:17 +00:00 committed by android-build-merger
parent 807032d0e1 eebe01b523
commit 1a5bfd9eaf
1 changed files with 7 additions and 0 deletions
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7
tests/pthread_test.cpp Normal file → Executable file
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@ -1245,8 +1245,11 @@ TEST(pthread, pthread_attr_getstack_18908062) {
}
#if defined(__BIONIC__)
static pthread_mutex_t gettid_mutex;
static void* pthread_gettid_np_helper(void* arg) {
pthread_mutex_lock(&gettid_mutex);
*reinterpret_cast<pid_t*>(arg) = gettid();
pthread_mutex_unlock(&gettid_mutex);
return NULL;
}
#endif
@ -1257,11 +1260,15 @@ TEST(pthread, pthread_gettid_np) {
pid_t t_gettid_result;
pthread_t t;
pthread_mutex_init(&gettid_mutex, NULL);
pthread_mutex_lock(&gettid_mutex);
pthread_create(&t, NULL, pthread_gettid_np_helper, &t_gettid_result);
pid_t t_pthread_gettid_np_result = pthread_gettid_np(t);
pthread_mutex_unlock(&gettid_mutex);
pthread_join(t, NULL);
pthread_mutex_destroy(&gettid_mutex);
ASSERT_EQ(t_gettid_result, t_pthread_gettid_np_result);
#else