pthread_rwlock_trywrlock 101 source4/heimdal/lib/krb5/heim_threads.h #define HEIMDAL_RWLOCK_trywrlock(l) pthread_rwlock_trywrlock(l) pthread_rwlock_trywrlock 350 source4/smbd/process_thread.c if ((rc = pthread_rwlock_trywrlock(rwlock))) {