- /*
- * Our MacOS X test machine with the following
- * config:
- * 15.6.0 Darwin Kernel Version 15.6.0
- * root:xnu-3248.60.10~1/RELEASE_X86_64
- * appears to have issues with liburcu-signal
- * signal being delivered on top of
- * pthread_cond_wait. It seems to make the
- * thread continue, and therefore corrupt the
- * rcu_head. Work around this issue by
- * unregistering the RCU read-side thread
- * immediately after call_rcu (call_rcu needs
- * us to be registered RCU readers).
- */
- call_rcu_wait = true;
- /* Offline for pthread_cond_wait. */
- put_thread_offline();
- do {
- ret = pthread_cond_wait(&call_rcu_test_cond,
- &call_rcu_test_mutex);
- } while (call_rcu_wait);
- put_thread_online();
- if (ret) {
- errno = ret;
- diag("pthread_cond_signal: %s",
- strerror(errno));
- abort();
- }
- ret = pthread_mutex_unlock(&call_rcu_test_mutex);
- if (ret) {
- errno = ret;
- diag("pthread_mutex_unlock: %s",
- strerror(errno));
- abort();
- }