Pool::count
(PHP 8.6+, True Async 1.0)
public Pool::count(): int
返回池中资源的总数，包括空闲资源和活跃（使用中）资源。
参数
该方法不接受参数。
返回值
池中资源的总数。
示例
示例 #1 监控池
<?php
use Async\Pool;
$pool = new Pool(
factory: fn() => new PDO('mysql:host=localhost;dbname=app', 'user', 'pass'),
min: 2,
max: 10
);
echo "Total resources: " . $pool->count() . "\n"; // 2 (min)
echo "Idle: " . $pool->idleCount() . "\n"; // 2
echo "Active: " . $pool->activeCount() . "\n"; // 0
$conn1 = $pool->acquire();
$conn2 = $pool->acquire();
$conn3 = $pool->acquire(); // a new resource is created
echo "Total resources: " . $pool->count() . "\n"; // 3
echo "Idle: " . $pool->idleCount() . "\n"; // 0
echo "Active: " . $pool->activeCount() . "\n"; // 3
参见
- Pool::idleCount — 空闲资源的数量
- Pool::activeCount — 活跃资源的数量