def destruct(self): if self._shm_key: print "[%s] catch term sinal, ready to save to shm..." % self.__class__.__name__ new_shm_str = json.dumps(self._date_map) ret = shm_open(self._shm_key, self._shm_size) ret = shm_write(new_shm_str) if ret == -2: print "[%s] new shm str's size[%s] is too large!" % (self.__class__.__name__, len(new_shm_str)) elif ret == -1: print "[%s] get shared memory failed!" % self.__class__.__name__ else: print "[%s] save succ!" % self.__class__.__name__
def clear_shm(self): if self._shm_key: # clear the shm map ret = shm_open(self._shm_key, self._shm_size) shm_write('')