标题: RT-Signal 及其应用要点 [打印本页] 作者: vbs100 时间: 2009-08-06 15:49 标题: RT-Signal 及其应用要点 http://www.ibm.com/developerworks/cn/linux/l-rtsignal
作者说 LDD(Linux Device Driver) 的下面这段话不对，大家来讨论下他说得对不对。我觉得这段话至少在高并发的网络编程里是对的，他的应用只是用到特定的有限的fd
There is one remaining problem with input notification. When a process receives a SIGIO, it doesn't know which input file has new input to offer. If more than one file is enabled to asynchronously notify the process of pending input, the application must still resort to poll or select to find out what happened.