iom_lock 287 src/dps8/threadz.c static pthread_mutex_t iom_lock; iom_lock 292 src/dps8/threadz.c rc = pthread_mutex_lock (& iom_lock); iom_lock 300 src/dps8/threadz.c rc = pthread_mutex_unlock (& iom_lock); iom_lock 1009 src/dps8/threadz.c pthread_mutex_init (& iom_lock, & iom_attr);