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);
?>
event_buffer_timeout_set
(PECL libevent >= 0.0.1)
event_buffer_timeout_set — バッファつきイベントの読み込みタイムアウトおよび書き込みタイムアウトを設定する
説明
event_buffer_timeout_set
( resource
$bevent
, int $read_timeout
, int $write_timeout
) : void指定したバッファつきイベントの読み込みタイムアウトおよび書き込みタイムアウトを設定します。
パラメータ
-
bevent -
有効なバッファつきイベントリソース。
-
read_timeout -
読み込みタイムアウト (秒数)。
-
write_timeout -
書き込みタイムアウト (秒数)。
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User Contributed Notes 1 note
john at collabriasoftware dot com ¶
12 years ago
