Funciones de Direct IO

Tabla de contenidos

  • dio_close — Cierra el descriptor de fichero fd
  • dio_fcntl — Lleva a cabo la función fcntl de la biblioteca C en el fichero fd
  • dio_open — Abre (crea si fuera necesario) un fichero a un nivel más bajo que el permitido por flujos de entrada y salida de las bibliotecas en C
  • dio_read — Leer bytes de un descriptor de fichero
  • dio_seek — Salta a una posición del descriptor de fichero desde donde proceda
  • dio_stat — Consulta información de estado del descriptor de fichero fd
  • dio_tcsetattr — Establece los atributos terminales y la tasa de baudios del puerto serie
  • dio_truncate — Trunca un descriptor de fichero fd a un determinado número de bytes
  • dio_write — Escribe datos en el descriptor de fichero con un truncado opcional
add a note

User Contributed Notes 3 notes

richard d_0t cubek a_t example D0_t com
16 years ago

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

It is not bundled anymore. See to fetch the CVS version (being unmaintained, there is no release in pecl). Not a bug > bogus.
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.
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...
To Top