Merge "Fix potential race condition on CTS TC pthread_gettid_np" into marshmallow-cts-dev
am: 2010fb6722
* commit '2010fb6722ea2bd9d07c9f0a3e69eafa3d6114e9':
Fix potential race condition on CTS TC pthread_gettid_np
diff --git a/tests/pthread_test.cpp b/tests/pthread_test.cpp
old mode 100644
new mode 100755
index 8ae28d8..f15cdab
--- a/tests/pthread_test.cpp
+++ b/tests/pthread_test.cpp
@@ -1244,8 +1244,11 @@
}
#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
@@ -1256,11 +1259,15 @@
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