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eio_fdatasync

(PECL eio >= 0.0.1dev)

eio_fdatasync — Synchronize a file's in-core state with storage device.

Description

代码语言:javascript
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resource eio_fdatasync ( mixed $fd [, int $pri = EIO_PRI_DEFAULT [, callable $callback = NULL [, mixed $data = NULL ]]] )

eio_fdatasync() synchronizes a file's in-core state with storage device.

Parameters

fd

Stream, Socket resource, or numeric file descriptor, e.g. returned by eio_open().

pri

The request priority: EIO_PRI_DEFAULT, EIO_PRI_MIN, EIO_PRI_MAX, or NULL. If NULL passed, pri internally is set to EIO_PRI_DEFAULT.

callback

callback function is called when the request is done. It should match the following prototype:

代码语言:javascript
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void?callback(mixed?$data,?int?$result[,?resource?$req]);

data

is custom data passed to the request.

result

request-specific result value; basically, the value returned by corresponding system call.

req

is optional request resource which can be used with functions like eio_get_last_error()

代码语言:txt
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 `data`   

Arbitrary variable passed to callback.

Return Values

eio_fdatasync() returns request resource on success or FALSE on error.

← eio_fchown

eio_fstat →

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 ? 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

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