eio_open

(PECL eio >= 0.0.1dev)

eio_openOpens a file

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eio_open ( string $path , int $flags , int $mode , int $pri , callable $callback [, mixed $data = NULL ] ) : resource

eio_open() opens file specified by path in access mode mode with

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path

Path of the file to be opened.

Warning

In some SAPIs(e.g. PHP-FPM) it could fail, if you don't specify full path.

flags

One of EIO_O_* constants, or their combinations. EIO_O_* constants have the same meaning, as their corresponding O_* counterparts defined in fnctl.h C header file. Default is EIO_O_RDWR.

mode

One of EIO_S_I* constants, or their combination (via bitwise OR operator). The constants have the same meaning as their S_I* counterparts defined in » sys/stat.h C header file. Required, if a file is created. Otherwise ignored.

pri

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callback

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void callback(mixed $data, int $result[, resource $req]);
data

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result

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req

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data

Arbitrary variable passed to callback.

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eio_open() returns file descriptor in result argument of callback on success; otherwise, result is equal to -1.

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Example #1 eio_open() example

<?php
$temp_filename 
"eio-temp-file.tmp";

/* Is called when eio_close() finishes */
function my_close_cb($data$result) {
 
// Zero indicates success
    
var_dump($result == 0);
 @
unlink($data);
}

/* Is called when eio_open() finishes */
function my_file_opened_callback($data$result) {
 
// $result should contain the file descriptor
    
var_dump($result 0);

    if (
$result 0) {
  
// Close the file
        
eio_close($resultEIO_PRI_DEFAULT"my_close_cb"$data);
        
eio_event_loop();
    }
}

// Create new file for reading and writing
// Deny group and others to do anything with that file
eio_open($temp_filenameEIO_O_CREAT EIO_O_RDWREIO_S_IRUSR EIO_S_IWUSR,
  
EIO_PRI_DEFAULT"my_file_opened_callback"$temp_filename);
eio_event_loop();
?>

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bool(true)
bool(true)

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  • eio_mknod