main threads

Clew is pestered each other, main threads affair is found in time very hard also.

线索互相纠缠, 头绪也很难及时找到.

In the main program, spawn the required number of threads.

在主程序中，派生所需个数的线程。

Mutexes will insert a" memory barrier," which ensures that the writes to main memory occur in the order the threads lock the mutex.

互斥对象将插入一道“内存关卡”，由它来确保对主存的写入按照线程锁定互斥对象的顺序进行。

And the main reason to use POSIX threads, or pthreads, is even simpler: As part of the standardized C language threads programming interface, they are highly portable.

而且使用POSIX线程或pthreads的主要原因更加简单：作为标准C语言线程编程接口的一部分，它们可高可移植的。

Multithreading your application improves the responsiveness of your user interface by moving long calculations into separate threads and away from your main event loop.

将长时间的计算从主事件循环线程移到别的线程中，从而提高用户接口的响应速度。