Direct IO 函数

dio_close — Closes the file descriptor given by fd
dio_fcntl — Performs a c library fcntl on fd
dio_open — Opens a file (creating it if necessary) at a lower level than the C library input/ouput stream functions allow
dio_read — Reads bytes from a file descriptor
dio_seek — Seeks to pos on fd from whence
dio_stat — Gets stat information about the file descriptor fd
dio_tcsetattr — Sets terminal attributes and baud rate for a serial port
dio_truncate — Truncates file descriptor fd to offset bytes
dio_write — Writes data to fd with optional truncation at length

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User Contributed Notes 3 notes

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-3

richard d_0t cubek a_t example D0_t com ¶

14 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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-4

tom at bitworks dot de ¶

14 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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-8

php dot 5 dot gavinostlund at spamgourmet dot com ¶

14 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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