public function fetch($clients, $ms = -1)
{
$poller = new Poller();
$poll_ids = [];
foreach ($clients as $i => $client) {
$id = $poller->registerReadable($client);
$poll_ids[$id] = $i;
}
$ms_left = $ms;
$ret = [];
do {
$rset = [];
$wset = [];
$events = 0;
if ($ms_left > 0) {
$tv1_ms = gettimeofday(true) * 1000;
$events = $poller->poll($rset, $wset, $ms_left);
$tv2_ms = gettimeofday(true) * 1000;
$ms_left -= $tv2_ms - $tv1_ms;
if ($ms_left < 0) {
$ms_left = 0;
}
} else {
$events = $poller->poll($rset, $wset, $ms_left);
}
// $errors = $poller->getLastErrors();
// if (count($errors) > 0) {
// $errno = -1;
// $errstr = [];
// foreach ($errors as $error) {
// $errstr[] = $error;
// }
// $this->setErr_($errno, implode(',', $errstr));
// $ret = false;
// }
if ($events > 0) {
foreach ($rset as $id) {
$i = $poll_ids[$id];
$msg = $clients[$i]->recv();
if ($msg !== false && !$client->errno()) {
$ret[$i] = $msg;
}
$poller->unregister($client);
}
}
} while ($poller->count() && $ms_left > 0);
return $ret;
}
