在进行linux服务器编程时经常要用到消息队列编程,但直接使用系统调用可能还不能实现需要.此例子演示了怎样在用内核调用操作消息队列,控制消息队列溢出,消除\"死\"消息的方法.-during regular programming to be used when the message queue programming, but the direct use of system calls may also need to achieve. this example demonstrates