nio

编程技术  /  houtizong 发布于 3年前   80

看了一下http://chen-xiao-mei2009-163-com.iteye.com/blog/464972

#include <sys/time.h> #include <stdio.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <assert.h> int main () { int keyboard; int ret,i; char c; fd_set readfd; struct timeval timeout; keyboard = open("/dev/tty",O_RDONLY | O_NONBLOCK); assert(keyboard>0); while(1) { timeout.tv_sec=1; timeout.tv_usec=0; FD_ZERO(&readfd); FD_SET(keyboard,&readfd); ret=select(keyboard+1,&readfd,NULL,NULL,&timeout); if(FD_ISSET(keyboard,&readfd)){ i=read(keyboard,&c,1); if('\n'==c) continue; printf("the input is %c\n",c); if ('q'==c) break; } } }

感觉nio的selector和这个select是否有一定联系