// // YYSentinel.m // YYKit // // Created by ibireme on 15/4/13. // Copyright (c) 2015 ibireme. // // This source code is licensed under the MIT-style license found in the // LICENSE file in the root directory of this source tree. // #import "YYSentinel.h" #import @implementation YYSentinel { int32_t _value; } - (int32_t)value { return _value; } - (int32_t)increase { return OSAtomicIncrement32(&_value); } @end