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 $write_timeout ) : voidSets the read and write timeouts for the specified buffered event.
参数
-
bevent -
Valid buffered event resource.
-
read_timeout -
Read timeout (in seconds).
-
write_timeout -
Write timeout (in seconds).
用户贡献的笔记
john at collabriasoftware dot com
On timeout the error callback is executed. This can be very valuable if you wanted to monitor inactivity on a socket.
You also need to use event_buffer_enable if you wanted to re-use the event listener.
Example:
<?php
function print_line($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);
?> 
