Http Server EventLoop Has Already Been Created

[cesurapp]

Please answer these questions before submitting your issue.

1. What did you do? If possible, provide a simple script for reproducing the error.

   \Co\run(function () {
   echo 'Starting server ...'.PHP_EOL;
   
   $server = new \Swoole\Http\Server('127.0.0.1', 9502);
   $server->set([
           \Swoole\Constant::OPTION_ENABLE_COROUTINE => false,
       ]);
   
   Process::signal(SIGTERM, function (int $signal) use ($server) {
       // Disable SIGTERM - SIGINT vs.
   });
   $server->start();
   });

2. What did you expect to see?

3. What did you see instead? Warning: Swoole\Server::start(): eventLoop has already been created, unable to start Swoole\Http\Server in /Users/ramazanapaydin/www/ec/test/api/bin/index.php on line 14

4. What version of OpenSwoole are you using (show your php --ri openswoole)? 4.10.0

5. What is your machine environment used (show your uname -a & php -v & gcc -v) ? PHP 8.1.3 Macos 11.6.4

[doubaokun]

You can use either co\run to create context or use server callback to create. Remove co\run it should work.

[cesurapp]

I tried and the result is the same.

echo 'Starting server ...'.PHP_EOL;

$server = new \Swoole\Http\Server('127.0.0.1', 9502);
$server->set([
    \Swoole\Constant::OPTION_ENABLE_COROUTINE => false,
]);

\Swoole\Process::signal(SIGTERM, function (int $signal) {
    // Disable SIGTERM - SIGINT vs.
});
$server->start();

Starting server ...
PHP Warning:  Swoole\Server::start(): eventLoop has already been created, unable to start Swoole\Http\Server in /Users/ramazanapaydin/www/ec/test/api/bin/index.php on line 13

Try it yourself. I've been dealing with this for 2 days.

[doubaokun]

I don’t know what you like to archive. Please check server docs at https://openswoole.com/docs/modules/swoole-server-doc Normally, you should not mix server with process.

[Rastusik]

I think he wanted to react to SIGTERM while running the server. Is there any other way to achieve this?

[viktike]

I think he wanted to react to SIGTERM while running the server. Is there any other way to achieve this?

Like this:

    function signal_handler($signal){
        $GLOBALS['server']->shutdown();
    }
    pcntl_signal(SIGINT, "signal_handler");
    pcntl_signal(SIGTERM, "signal_handler");
    Swoole\Timer::tick(200, function(){
        pcntl_signal_dispatch();
    });