Pool::activate
(PHP 8.6+, True Async 1.0)
public Pool::activate(): void
强制将池转换为 ACTIVE 状态。资源重新可供获取。用于手动管理 Circuit Breaker，例如在确认服务已恢复之后。
参数
该方法不接受参数。
返回值
不返回值。
示例
示例 #1 验证后手动激活
<?php
use Async\Pool;
use Async\CircuitBreakerState;
$pool = new Pool(
factory: fn() => new HttpClient('https://api.example.com'),
max: 5
);
// Suppose the pool was deactivated
if ($pool->getState() === CircuitBreakerState::INACTIVE) {
// Manually check service availability
if (checkServiceHealth('https://api.example.com/health')) {
$pool->activate();
echo "Pool activated\n";
}
}
示例 #2 通过外部信号激活
<?php
use Async\Pool;
// Webhook handler from the monitoring system
function onServiceRestored(Pool $pool): void
{
$pool->activate();
echo "Service restored, pool activated\n";
}
参见
- Pool::deactivate — 切换到 INACTIVE 状态
- Pool::recover — 切换到 RECOVERING 状态
- Pool::getState — 当前状态