Fix possible leak in pthread_detach.
If pthread_detach() is called while the thread is in pthread_exit(),
it takes the risk that no one can free the pthread_internal_t.
So I add PTHREAD_ATTR_FLAG_ZOMBIE to detect this, maybe very rare, but
both glibc and netbsd libpthread have similar function.
Change-Id: Iaa15f651903b8ca07aaa7bd4de46ff14a2f93835
diff --git a/tests/pthread_test.cpp b/tests/pthread_test.cpp
index 2398f23..cb32079 100644
--- a/tests/pthread_test.cpp
+++ b/tests/pthread_test.cpp
@@ -431,7 +431,7 @@
ASSERT_EQ(ESRCH, pthread_detach(dead_thread));
}
-TEST(pthread, pthread_detach__leak) {
+TEST(pthread, pthread_detach_no_leak) {
size_t initial_bytes = 0;
// Run this loop more than once since the first loop causes some memory
// to be allocated permenantly. Run an extra loop to help catch any subtle
@@ -464,9 +464,7 @@
size_t final_bytes = mallinfo().uordblks;
int leaked_bytes = (final_bytes - initial_bytes);
- // User code (like this test) doesn't know how large pthread_internal_t is.
- // We can be pretty sure it's more than 128 bytes.
- ASSERT_LT(leaked_bytes, 32 /*threads*/ * 128 /*bytes*/);
+ ASSERT_EQ(0, leaked_bytes);
}
TEST(pthread, pthread_getcpuclockid__clock_gettime) {