找到了几篇介绍c/c++多进程和多线程以及协程的文章，感觉很不错

https://www.cnblogs.com/yuanchenqi/articles/6755717.html#_label1   多进程多线程

http://blog.jobbole.com/93386/   多进程多线程

http://blog.csdn.net/lg1259156776/article/details/52732850  线程安全

http://blog.csdn.net/woshiqjs/article/details/24124325    协程与网络编程

http://blog.csdn.net/brainkick/article/details/48676403腾讯libco协程库