uv_mutex_trylock 1940 include/uv.h   UV_EXTERN int uv_mutex_trylock(uv_mutex_t* handle);
uv_mutex_trylock  352 src/win/thread.c   err = uv_mutex_trylock(&rwlock->fallback_.read_mutex_);
uv_mutex_trylock  358 src/win/thread.c     err = uv_mutex_trylock(&rwlock->fallback_.write_mutex_);
uv_mutex_trylock  386 src/win/thread.c   return uv_mutex_trylock(&rwlock->fallback_.write_mutex_);