Direct IO Funzioni

Indice dei contenuti

  • dio_close — Chiude il descrittore di file passato
  • dio_fcntl — Esegue la funzione C fcntl su un descrittore di file
  • dio_open — Apre un nuovo file nella modalità specificata da flags e i permessi indicati in mode
  • dio_read — Legge n bytes da un descrittore di file
  • dio_seek — Si posiziona al byte pos del file indicato da fd
  • dio_stat — Restituisce le informazioni relative al file indicato da fd
  • dio_tcsetattr — Imposta gli attributi terminale e la velocità per una porta seriale
  • dio_truncate — Tronca il file indicato da fd ad un numero di byte specificato
  • dio_write — Scrive dati sul file indicato da fd con la possibilità di troncarne la lunghezza
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User Contributed Notes 3 notes

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1
php dot 5 dot gavinostlund at spamgourmet dot com
6 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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tom at bitworks dot de
6 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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richard d_0t cubek a_t example D0_t com
6 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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