poll select
aio相关http://lse.sourceforge.net/io/aio.html
jfs
http://en.wikipedia.org/wiki/JFS_(file_system)
xfs
http://xfs.org/index.php/XFS_Papers_and_Documentation
------------javaeye挂了还是升级升的不支持chrome14---页面错乱发布了新的
参考http://frenchleaf.iteye.com/blog/779086
apue12章 ：
非阻塞io，
1.如果是调用o p e n以获得该描述符，则可指定O_NONBLOCK标志
2.对于已经打开的一个描述符，则可调用f c n t l打开O_NONBLOCK文件状态标志
源码指向fig14.1：/apue.2e/advio/nonblockw.c
./nonblockw </etc/termcap >temp.file
#include "apue.h"#include <errno.h>#include <fcntl.h>char buf;intmain(void){ int ntowrite, nwrite; char *ptr; ntowrite = read(STDIN_FILENO, buf, sizeof(buf)); fprintf(stderr, "read %d bytes\n", ntowrite); set_fl(STDOUT_FILENO, O_NONBLOCK); /* set nonblocking */ ptr = buf; while (ntowrite > 0) { errno = 0; nwrite = write(STDOUT_FILENO, ptr, ntowrite); fprintf(stderr, "nwrite = %d, errno = %d\n", nwrite, errno); if (nwrite > 0) { ptr += nwrite; ntowrite -= nwrite; } } clr_fl(STDOUT_FILENO, O_NONBLOCK); /* clear nonblocking */ exit(0);}
flock锁：
fig14.6 -> lib/locktest.c
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