pthread_mutex_trylock 658 gc/include/private/gc_locks.h { if (0 != pthread_mutex_trylock(&GC_allocate_ml)) GC_lock(); } pthread_mutex_trylock 1365 gc/pthread_support.c if (0 == pthread_mutex_trylock(lock)) { pthread_mutex_trylock 1375 gc/pthread_support.c switch(pthread_mutex_trylock(lock)) {