IOS进程之间的通信方式有哪些？

Question

问一个范围大一点的问题，假设我使用IOS中的GCD实现多线程编程，那么线程之间的通信都有哪些方式？

Answer 1

The title is incorrect

Communication method between threads:

1. Shared memory (static objects and the like)
2. tcp
3. File

Inter-process communication

1. Shared memory
2. tcp
3. File
4. Pipe (pipe, what is double open, half open...)