我正在处理一个非ARC项目,但是使用Philipp Kyeck的socketio库,该库是使用ARC编写的。我正在使用this教程中解释的方法合并非ARC项目和ARC库。
在我的ViewController文件中,我正在使用以下代码初始化socket:
SockIO *chatSockIO = [[SocketIO alloc] initWithDelegate:self];
当我需要断开连接时,我会打电话。
[chatSockIO disconnect];
这将导致socketIODidDisconnect代理方法被触发。
- (void) socketIODidDisconnect:(SocketIO *)socket{
[chatSockIO release]; ==> is this call needed?
}
现在我的问题是关于这行代码
[chatSockIO release]
。在非ARC项目中,我们需要释放一个在ARC模式下定义的对象吗?
当我尝试释放时,会出现异常。
-[SocketIO retain]: message sent to deallocated instance 0x6fec370
但是当我注释掉那一行时,出现内存泄漏,并且我的库对象中的dealloc根本没有被调用。
赏金时间!
忘记我提到的库,我的代码崩溃和泄漏了...在非ARC项目中使用ARC方法定义的对象时,通常的做法是仅分配它,还是在使用后分配并释放它?
编辑:更多信息。
我在崩溃时运行了僵尸检测工具,它显示了对分配和释放函数的调用。
# Address Category Event Type RefCt Timestamp Size Responsible Library Responsible Caller
0 0x72d5da0 SocketIO Malloc 1 00:09.700.274 64 MyProject -[MyViewController sendRequestForSocketIOPush]
1 0x72d5da0 SocketIO Retain 2 00:09.700.317 0 MyProject -[SocketIO initWithDelegate:]
2 0x72d5da0 SocketIO Release 1 00:09.700.320 0 MyProject -[SocketIO initWithDelegate:]
3 0x72d5da0 SocketIO Retain 2 00:09.700.440 0 Foundation -[NSURLConnectionInternal initWithInfo:]
4 0x72d5da0 SocketIO Retain 3 00:10.413.717 0 Foundation -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]
5 0x72d5da0 SocketIO Release 2 00:10.413.761 0 Foundation -[NSURLConnectionInternalConnection invokeForDelegate:]
6 0x72d5da0 SocketIO Retain 3 00:10.413.797 0 Foundation -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]
7 0x72d5da0 SocketIO Release 2 00:10.413.811 0 Foundation -[NSURLConnectionInternalConnection invokeForDelegate:]
8 0x72d5da0 SocketIO Retain 3 00:10.413.816 0 Foundation -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]
9 0x72d5da0 SocketIO Release 2 00:10.415.087 0 Foundation -[NSURLConnectionInternalConnection invokeForDelegate:]
10 0x72d5da0 SocketIO Retain 3 00:10.415.214 0 Foundation -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]
11 0x72d5da0 SocketIO Release 2 00:10.415.216 0 Foundation -[NSURLConnectionInternalConnection invokeForDelegate:]
12 0x72d5da0 SocketIO Release 1 00:10.415.275 0 Foundation -[NSURLConnectionInternalConnection invokeForDelegate:]
13 0x72d5da0 SocketIO Retain 2 00:10.969.432 0 GraphicsServices GSEventRunModal
14 0x72d5da0 SocketIO Release 1 00:10.969.433 0 GraphicsServices GSEventRunModal
15 0x72d5da0 SocketIO Retain 2 00:10.969.434 0 GraphicsServices GSEventRunModal
16 0x72d5da0 SocketIO Release 1 00:10.969.456 0 GraphicsServices GSEventRunModal
17 0x72d5da0 SocketIO Retain 2 00:10.969.459 0 GraphicsServices GSEventRunModal
18 0x72d5da0 SocketIO Retain 3 00:10.969.488 0 Foundation -[NSCFTimer initWithFireDate:interval:target:selector:userInfo:repeats:]
19 0x72d5da0 SocketIO Release 2 00:10.976.115 0 MyProject -[SocketIO setTimeout]
20 0x72d5da0 SocketIO Retain 3 00:10.976.125 0 Foundation -[NSCFTimer initWithFireDate:interval:target:selector:userInfo:repeats:]
21 0x72d5da0 SocketIO Release 2 00:10.976.161 0 GraphicsServices GSEventRunModal
22 0x72d5da0 SocketIO Retain 3 00:13.935.328 0 GraphicsServices GSEventRunModal
23 0x72d5da0 SocketIO Release 2 00:13.935.373 0 MyProject -[SocketIO setTimeout]
24 0x72d5da0 SocketIO Retain 3 00:13.935.399 0 Foundation -[NSCFTimer initWithFireDate:interval:target:selector:userInfo:repeats:]
25 0x72d5da0 SocketIO Release 2 00:13.935.685 0 MyProject -[SocketIO onDisconnect]
26 0x72d5da0 SocketIO Release 1 00:13.935.705 0 MyProject -[MyViewController socketIODidDisconnect:]
27 0x72d5da0 SocketIO Release 0 00:13.935.716 0 GraphicsServices GSEventRunModal
28 0x72d5da0 SocketIO Zombie -1 00:13.936.298 0 GraphicsServices GSEventRunModal
NS_RETURNS_NON_RETAINED
和NS_RETURNS_RETAINED
? - Oleg Trakhman