public function _loop($connectionIndex, $connection, &$jobs)
{
// Refresh statistics from mongrel2
$tnetstring = $connection->control('26:6:status,13:4:what,3:net,}]');
if ($tnetstring === null) {
return;
}
$stats = \tnetstring_decode($tnetstring);
if (isset($stats['rows'][0]) === false) {
return;
}
if (is_array($stats['rows'][0]) === false) {
$r = $stats['rows'];
unset($stats['rows']);
$stats['rows'][0] = $r;
}
// Mark all jobs as inactive to detect disconnected
foreach ($jobs as $key => $job) {
if (isset($jobs[$key]) === true) {
$jobs[$key]['active'] = false;
$jobs[$key]['bytes_written_last'] = $jobs[$key]['bytes_written'];
}
}
// Update internal statistics
foreach ($stats['rows'] as $row) {
if ($row[0] === -1) {
continue;
}
if (isset($jobs[$row[0]])) {
$jobs[$row[0]]['bytes_written'] = $row[7];
$jobs[$key]['active'] = true;
}
}
// Remove disconnected
foreach ($jobs as $key => $job) {
if ($job['active'] === false) {
unset($jobs[$key]);
}
}
// Grow mongrel2 buffer
foreach ($jobs as $key => &$job) {
// bytes transfered last second per the client
$size = $job['bytes_written'] - $job['bytes_written_last'];
// Try to increase the bandwidth, maybe the client can follow
$size = $size < 1024 * 1024 ? 1024 * 1024 : $size;
$overcommit = $job['bytes_written'] === $job['bytes_sent'] ? 2 : 1;
// Iterate on the data, we can not known numbers and size of chuncks in the iterator
do {
// Ensure the mongrel2 buffer is at least 1MB or the size transfered last seconds
if ($job['bytes_sent'] - $job['bytes_written'] > $size * $overcommit) {
break;
// Lot of data available in mongrel2
}
// Ensure they have a chunck slot available in mongrel2
$limit = array_sum($job['last_chunck']) - $job['last_chunck'][0];
if ($job['bytes_sent'] - $job['bytes_written'] > $limit) {
break;
// No more slot
}
$it =& $job['iterator'];
$it->next();
if ($it->valid() === false) {
// Notify mongrel2 about the end
$connection->send('PhotonDownload', $key, '');
// End of the iterator
unset($it);
unset($this->jobs[$key]);
break;
}
$buffer = $it->current();
$sz = strlen($buffer);
$job['bytes_sent'] += $sz;
array_shift($job['last_chunck']);
array_push($job['last_chunck'], $sz);
$connection->send('PhotonDownload', $key, $buffer);
} while (true);
}
unset($job);
}
function thrash()
{
$tnetstring = "51:5:hello,39:11:12345678901#4:this,4:true!0:~4:,]}";
$result = tnetstring_decode($tnetstring);
tnetstring_encode($result);
}
