php - 如何使用 Amphp 捕获 php websocket 断开的 TCP 连接异常？

Question

这是连接仍然存在时我正在运行的当前 WebSocket 循环。但是连续连接11个小时后，我收到了异常

"exception":"[object] (Amp\\Websocket\\ClosedException(code: 1006): The connection was closed: Client closed the underlying TCP connection at ...

如何检查关闭的连接或异常本身？，这样我就可以正确结束脚本逻辑而不会突然失败。

     \Amp\Loop::run(function () use ($fn, $st)
        {
            $connection = yield \Amp\Websocket\connect('wss://URL');

            yield $connection->send('{"action":"auth","params":"KEYID"}');
            yield $connection->send('{"action":"subscribe","params":"'.$st.'"}');

            $i = 0;

            while ($message = yield $connection->receive()) 
            {
                $i++;
                $payload = yield $message->buffer();

                $r = $fn($payload, $i);

                if ($r == false) {
                    $connection->close();
                    break;
                }
            }
        }
    );

我正在使用这个 Amphp Websocket：https ://github.com/amphp/websocket-client

谢谢！

Answer 1

ClosedException我确实找到了解决这个问题的方法，方法是在它被抛出后寻找并运行其他任务。

\Amp\Loop::run(function () use ($fn, $st)
    {
        try 
        {
            $connection = yield \Amp\Websocket\connect('wss://URL');

            yield $connection->send('{"action":"auth","params":"KEYID"}');
            yield $connection->send('{"action":"subscribe","params":"'.$st.'"}');

            $i = 0;

            while ($message = yield $connection->receive()) 
            {
                $i++;
                $payload = yield $message->buffer();

                $r = $fn($payload, $i);

                if ($r == false) {
                    $connection->close();
                    break;
                }
            }
        }
        catch (\Amp\Websocket\ClosedException $e) 
        {
            // do something here
        }
    }
);