snootpaintings/ext/statsd/main.php

123 lines
3.6 KiB
PHP

<?php
declare(strict_types=1);
namespace Shimmie2;
_d("STATSD_HOST", null);
function dstat($name, $val)
{
StatsDInterface::$stats["shimmie.$name"] = $val;
}
class StatsDInterface extends Extension
{
public static array $stats = [];
private function _stats(string $type)
{
global $_shm_event_count, $cache, $database, $_shm_load_start;
$time = microtime(true) - $_shm_load_start;
StatsDInterface::$stats["shimmie.$type.hits"] = "1|c";
StatsDInterface::$stats["shimmie.$type.time"] = "$time|ms";
StatsDInterface::$stats["shimmie.$type.time-db"] = "{$database->dbtime}|ms";
StatsDInterface::$stats["shimmie.$type.memory"] = memory_get_peak_usage(true)."|c";
StatsDInterface::$stats["shimmie.$type.files"] = count(get_included_files())."|c";
StatsDInterface::$stats["shimmie.$type.queries"] = $database->query_count."|c";
StatsDInterface::$stats["shimmie.$type.events"] = $_shm_event_count."|c";
StatsDInterface::$stats["shimmie.$type.cache-hits"] = $cache->get_hits()."|c";
StatsDInterface::$stats["shimmie.$type.cache-misses"] = $cache->get_misses()."|c";
}
public function onPageRequest(PageRequestEvent $event)
{
$this->_stats("overall");
if ($event->page_matches("post/view")) { # 40%
$this->_stats("post-view");
} elseif ($event->page_matches("post/list")) { # 30%
$this->_stats("post-list");
} elseif ($event->page_matches("user")) {
$this->_stats("user");
} elseif ($event->page_matches("upload")) {
$this->_stats("upload");
} elseif ($event->page_matches("rss")) {
$this->_stats("rss");
} elseif ($event->page_matches("api")) {
$this->_stats("api");
} else {
$this->_stats("other");
}
$this->send(StatsDInterface::$stats, 1.0);
StatsDInterface::$stats = [];
}
public function onUserCreation(UserCreationEvent $event)
{
StatsDInterface::$stats["shimmie_events.user_creations"] = "1|c";
}
public function onDataUpload(DataUploadEvent $event)
{
StatsDInterface::$stats["shimmie_events.uploads"] = "1|c";
}
public function onCommentPosting(CommentPostingEvent $event)
{
StatsDInterface::$stats["shimmie_events.comments"] = "1|c";
}
public function onImageInfoSet(ImageInfoSetEvent $event)
{
StatsDInterface::$stats["shimmie_events.info-sets"] = "1|c";
}
public function get_priority(): int
{
return 99;
}
private function send(array $data, float $sampleRate=1)
{
if (!STATSD_HOST) {
return;
}
// sampling
$sampledData = [];
if ($sampleRate < 1) {
foreach ($data as $stat => $value) {
if ((mt_rand() / mt_getrandmax()) <= $sampleRate) {
$sampledData[$stat] = "$value|@$sampleRate";
}
}
} else {
$sampledData = $data;
}
if (empty($sampledData)) {
return;
}
// Wrap this in a try/catch - failures in any of this should be silently ignored
try {
$parts = explode(":", STATSD_HOST);
$host = $parts[0];
$port = (int)$parts[1];
$fp = fsockopen("udp://$host", $port, $errno, $errstr);
if (! $fp) {
return;
}
foreach ($sampledData as $stat => $value) {
fwrite($fp, "$stat:$value");
}
fclose($fp);
} catch (Exception $e) {
// ignore any failures.
}
}
}