zx/vendor/open-smf/connection-pool/examples/dynamic-testing.php

66 lines
2.1 KiB
PHP

<?php
include '../vendor/autoload.php';
use Smf\ConnectionPool\ConnectionPool;
use Smf\ConnectionPool\Connectors\PDOConnector;
use Swoole\Coroutine;
Swoole\Runtime::enableCoroutine();
go(function () {
// All MySQL connections: [10, 30]
$pool = new ConnectionPool(
[
'minActive' => 10,
'maxActive' => 30,
'maxWaitTime' => 5,
'maxIdleTime' => 20,
'idleCheckInterval' => 10,
],
new PDOConnector,
[
'dsn' => 'mysql:host=127.0.0.1;port=3306;dbname=mysql;charset=utf8mb4',
'username' => 'root',
'password' => 'xy123456',
'options' => [
\PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION,
\PDO::ATTR_DEFAULT_FETCH_MODE => \PDO::FETCH_ASSOC,
\PDO::ATTR_TIMEOUT => 30,
],
]
);
$pool->init();
// For debug
$peakCount = 0;
swoole_timer_tick(1000, function () use ($pool, &$peakCount) {
$count = $pool->getConnectionCount();
$idleCount = $pool->getIdleCount();
if ($peakCount < $count) {
$peakCount = $count;
}
echo "Pool connection count: $count, peak count: $peakCount, idle count: $idleCount\n";
});
while (true) {
$count = mt_rand(1, 45);
echo "Query count: $count\n";
for ($i = 0; $i < $count; $i++) {
go(function () use ($pool) {
/**@var \PDO $pdo */
$pdo = $pool->borrow();
defer(function () use ($pool, $pdo) {
$pool->return($pdo);
});
$statement = $pdo->query('show status like \'Threads_connected\'');
$ret = $statement->fetch();
if (!isset($ret['Variable_name'])) {
echo "Invalid query result: \n", print_r($ret, true);
}
echo $ret['Variable_name'] . ': ' . $ret['Value'] . "\n";
});
}
Coroutine::sleep(mt_rand(1, 15));
}
});