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event_buffer_timeout_set

(PECL libevent >= 0.0.1)

event_buffer_timeout_set — Set read and write timeouts for a buffered event

说明

event_buffer_timeout_set ( resource $bevent , int $read_timeout , int $write_timeout ) : void

Sets the read and write timeouts for the specified buffered event.

参数

bevent: Valid buffered event resource.
read_timeout: Read timeout (in seconds).
write_timeout: Write timeout (in seconds).

User Contributed Notes

john at collabriasoftware dot com 24-Mar-2012 02:38


On timeout the error callback is executed. This can be very valuable if you wanted to monitor inactivity on a socket.



You also need to use event_buffer_enable if you wanted to re-use the event listener.



Example:



<?php

function print_line($buf, $arg)

{

    static $max_requests;



    $max_requests++;



    if ($max_requests == 10) {

        event_base_loopexit($arg);

    }



    // print the line

    echo event_buffer_read($buf, 4096);

}



function error_func($buf, $what, $arg)

{

    // If this was a read timeout

    if ($what == (EVBUFFER_READ | EVBUFFER_TIMEOUT)) {

        echo '5 seconds of inactivity'."\n";



        // Control timeout features

        //    Could ping the client, or even disconnect the client if you really wanted to.

        //    --- ETC



        // Restart our event loop on this buffer

        event_buffer_enable($buf, EV_READ);

    }

}



$base = event_base_new();

$eb = event_buffer_new(STDIN, "print_line", NULL, "error_func", $base);



// Timeout after 5 seconds of inactivity

event_buffer_timeout_set($eb, 5, NULL);

event_buffer_base_set($eb, $base);

event_buffer_enable($eb, EV_READ);



event_base_loop($base);



?>

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event_buffer_timeout_set

说明

参数

User Contributed Notes

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