Ios GCDAsyncSocket和AsyncSocket有什么不同？

一个是GCD，另一个是Runloop？这是抽象的，如何为我的TCP连接选择一个？非常感谢，我只知道如何在github上使用GCDAsyncSocket，但不知道如何选择一个。

希望这可以帮助您：

即使您只使用iOS，在不久的将来也可能会出现多核iOS设备。而GCD将是利用GCDAsyncSocket的额外资源的极好方式

GCDAsyncSocket

• GCDAsyncSocket的最低要求：Mac OS X 10.6+或iOS 4.0+

• GCDAsyncSocket的性能比AsyncSocket好得多

• 考虑到将加密/解密（而不是SSL/TLS）卸载到另一个线程上，在我看来，采用GCD的方式将是更好的选择

GCDAsyncSocket的具体功能包括：

    1. Classic delegate-style support.
    2. It allows allows for parallel socket IO and data processing, as well as easy thread-safety.
    3. Queued non-blocking reads and writes, with optional timeouts.
    4. Automatic support for IPv4 and IPv6.
    5. SSL/TLS support.
    6. Built upon the latest technologies such as queues and GCD.
    7. Self-contained in one class.
    You don't need to muck around with streams or sockets. The class handles all of that.

•   Queued non-blocking reads and writes, with timeouts.
•   Automatic socket acceptance.
•   Delegate support.
•   Run-loop based, not thread based.
•   Self-contained in one class. You do not need to muck around with a collection of stream or socket instances. The class handles all of that.
•   Support for TCP streams. AsyncSocket does not support UDP or multicast sockets.
•   Based on Apple’s own CFSocket and CFStream Carbon APIs.

异步套接字

AsyncSocket库由一个类组成，也称为AsyncSocket。AsyncSocket的实例表示一个套接字，可以是侦听套接字或连接套接字

• 如果您需要支持Mac OS X 10.6+或iOS 4.0+之前的操作系统版本，那么您现在需要坚持使用AsyncSocket

• AsyncSocket提供了易于集成的“触发并忘记”网络，使您的应用程序易于支持网络

功能包括：

    1. Classic delegate-style support.
    2. It allows allows for parallel socket IO and data processing, as well as easy thread-safety.
    3. Queued non-blocking reads and writes, with optional timeouts.
    4. Automatic support for IPv4 and IPv6.
    5. SSL/TLS support.
    6. Built upon the latest technologies such as queues and GCD.
    7. Self-contained in one class.
    You don't need to muck around with streams or sockets. The class handles all of that.

•   Queued non-blocking reads and writes, with timeouts.
•   Automatic socket acceptance.
•   Delegate support.
•   Run-loop based, not thread based.
•   Self-contained in one class. You do not need to muck around with a collection of stream or socket instances. The class handles all of that.
•   Support for TCP streams. AsyncSocket does not support UDP or multicast sockets.
•   Based on Apple’s own CFSocket and CFStream Carbon APIs.

参考文献

参考文献