Direct IO 函数

dio_close — 通过 fd 关闭文件描述符
dio_fcntl — 在 fd 上执行 C 标准库的 fcntl
dio_open — 在 C 库输入/输出流函数允许的更低级别打开（必要时创建）文件
dio_read — 从文件描述符读取字节
dio_seek — 在 fd 指定 pos 位置
dio_stat — 获取有关文件描述符 fd 的统计信息
dio_tcsetattr — 设置串行端口的终端属性和波特率
dio_truncate — 截断文件描述符 fd 为 offset 字节
dio_write — 截取可选长度的数据写入文件

User Contributed Notes 3 notes

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richard d_0t cubek a_t example D0_t com ¶

16 years ago

IMPORTANT:

--enable-dio is NOT recognized as an option. After reporting a bug, i got following answer:

It is not bundled anymore. See http://pecl.php.net/dio to fetch the CVS version (being unmaintained, there is no release in pecl). Not a bug > bogus.

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-3

tom at bitworks dot de ¶

16 years ago

to use mandatory locking on a linux system, the filesystem has to be well prepared.

# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>               <dump>  <pass>
/dev/hda1       /               ext3    errors=remount-ro,mand  0       1
/dev/hda2       none            swap    sw                      0       0
proc            /proc           proc    defaults                0       0
/dev/fd0        /floppy         auto    user,noauto             0       0
/dev/cdrom      /cdrom          iso9660 ro,user,noauto          0       0 

For example here the ext3 partition has been prepared for mandatory locking. Otherwise no dio_function will work on the system.

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-6

php dot 5 dot gavinostlund at spamgourmet dot com ¶

15 years ago

You can manually build the dio extension for your version of PHP, or install an older version of PHP that still bundled dio.  It's not that hard to build it yourself, just a bit of a process, and it helps if you're on linux, and have a build environment... which I would assume you have if you are doing some kind of development that requires direct device I/O...  Just get the dio source from the cvs repo, compile it, and then add the extension to your php configuration...

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Direct IO 函数

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User Contributed Notes 3 notes