Objective c iOS NSStream连接似乎暂停_Objective C_Networking_Tcp_Network Programming_Nsstream

Objective c iOS NSStream连接似乎暂停

objective-c networking tcp network-programming

Objective c iOS NSStream连接似乎暂停,objective-c,networking,tcp,network-programming,nsstream,Objective C,Networking,Tcp,Network Programming,Nsstream,我正在尝试使用来自的示例代码在两个iOS设备之间发送数据客户端连接良好，数据在两台设备之间传输良好。客户端大约每秒发送10次数据包。然而，我在接收数据之间遇到了非常奇怪的停顿在接收代码中，每次接收到请求时，我都会放入一条调试语句： - (void) stream:(NSStream *)stream handleEvent:(NSStreamEvent)eventCode { NSLog(@"stream: handleEvent : %d", eventCode);

我正在尝试使用来自的示例代码在两个iOS设备之间发送数据

客户端连接良好，数据在两台设备之间传输良好。客户端大约每秒发送10次数据包。然而，我在接收数据之间遇到了非常奇怪的停顿

在接收代码中，每次接收到请求时，我都会放入一条调试语句：

- (void) stream:(NSStream *)stream handleEvent:(NSStreamEvent)eventCode {
     NSLog(@"stream: handleEvent : %d", eventCode);
         switch(eventCode) {
            // ... handle event and print out received data
         }
}

相关的发送代码位于sendQueuedData函数中：

第一秒钟左右的请求按计划进行（尽管它似乎将请求批处理在一起）：

。。。但请注意后续通话的时间戳：

2011-03-13 12:28:10.163 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:13.770 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}    
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:13.772 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:13.777 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:13.868 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:14.016 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:14.177 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:14.340 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:14.424 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:15.065 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:16.338 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:18.740 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:18.741 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}

正如您所看到的，handleEvent（）回调被偶尔调用，显然不适合实时应用程序。有人知道为什么吗？我应该从使用NSStreams切换到类似UDP的方式吗

@joeblow-我在iphone4上测试。事实上，我确实改用了AsyncSocket，它稍微好一点，但仍然是零星的。我也看到了这一点，但还没有找到问题的根源。@Joe Blow-我在iPhone 4上进行测试。事实上，我确实改用了AsyncSocket，这有点好，但仍然是零星的。我也看到了这一点，但还没有找到问题的根源。

2011-03-13 12:28:10.163 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:13.770 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}    
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:13.772 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:13.777 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:13.868 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:14.016 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:14.177 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:14.340 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:14.424 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:15.065 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:16.338 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:18.740 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
2011-03-13 12:28:18.741 bluetoothmodule[52188:207] stream: handleEvent : 2
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}
[DEBUG] Fire Event: data: {"x":0.00,"y":-0.00}