Shulou(Shulou.com)06/03 Report--

This article shows you the usage of the advanced readv O function and writev. The content is concise and easy to understand. It will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

Readv 、 writev

# include#include#includeint main () {int fd = open ("aaa", O_RDWR); struct iovec buf [2]; / * buf [0] .iov _ base = malloc (3); buf [0] .iov _ len = 3; buf [1] .iov _ base = malloc (2); buf [1] .iov _ len = 2; readv (fd,buf,2) Printf ("% s\ n", (char*) buf [0] .iov _ base); printf ("% s\ n", (char*) buf [1] .iov _ base); * / char szbuf [10] = "123"; buf [0] .iov _ base = szbuf; buf [0] .iov _ len = strlen (szbuf); char szbuf2 [10] =" abc " Buf [1] .iov _ base = szbuf2; buf [1] .iov _ len = strlen (szbuf2); writev (fd,buf,2); close (fd); return 0;} the above is the use of readv and writev, the advanced Imax O functions. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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