linux下多线程结构体数组对文件进行读写操作，涉及一条线程打开文件，读取一个文件数据，入队到循环队列buffer；另一条线程循环队列buffer进行出队写入到另一个文件中。-Under Linux multithreaded structure array to the file to read and write operations, involving a thread to open the file, read a file data, the team to the circula