PHP. Руководство по PHP. 2005

Direct IO FunctionsПред.

След.

XXVI. Direct IO Functions

Введение

PHP supports the direct io functions as described in the Posix Standard (Section 6) for performing I/O functions at a lower level than the C-Language stream I/O functions (fopen(), fread(),..). The use of the DIO functions should be considered only when direct control of a device is needed. In all other cases, the standard filesystem functions are more than adequate.

Замечание: This extension has been moved to the PECL repository and is no longer bundled with

PHP as of PHP 5.1.0.

This extension is only available on Windows Platforms as of PHP 5.0.0

Требования

Эти функции всегда доступны.

Установка

To get these functions to work, you have to configure PHP with --enable-dio.

Предопределенные константы

-Перечисленные ниже константы определены данным расширением и могут быть

доступны только в том случае, если PHP был собран с

поддержкой этого расширения или же в том случае, если

данное расширение подгружается во время выполнения.

c (integer)

F_DUPFD (integer)

F_GETFD (integer)

F_GETFL (integer)

F_GETLK (integer)

F_GETOWN (integer)

F_RDLCK (integer)

F_SETFL (integer)

F_SETLK (integer)

F_SETLKW (integer)

F_SETOWN (integer)

F_UNLCK (integer)

F_WRLCK (integer)

O_APPEND (integer)

O_ASYNC (integer)

O_CREAT (integer)

O_EXCL (integer)

O_NDELAY (integer)

O_NOCTTY (integer)

O_NONBLOCK (integer)

O_RDONLY (integer)

O_RDWR (integer)

O_SYNC (integer)

O_TRUNC (integer)

O_WRONLY (integer)

S_IRGRP (integer)

S_IROTH (integer)

S_IRUSR (integer)

S_IRWXG (integer)

S_IRWXO (integer)

S_IRWXU (integer)

S_IWGRP (integer)

S_IWOTH (integer)

S_IWUSR (integer)

S_IXGRP (integer)

S_IXOTH (integer)

S_IXUSR (integer)

Настройка во время выполнения

Данное расширение не определяет никакие директивы конфигурации в php.ini.

Типы ресурсов

One resource type is defined by this extension: a file descriptor returned by dio_open().

Содержание

dio_close -- Closes the file descriptor given by fd

dio_fcntl -- Performs a c library fcntl on fd

dio_open -- Opens a new filename with specified permissions of flags and creation permissions of mode

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

Пред.

Начало

След.

dbx_sort

Уровень выше

dio_close