Example code not working with ExtEventLoop

[giggsey]

My original test case:

<?php
require __DIR__ . '/vendor/autoload.php';
$stdoutLogFile = 'test.log';
/*
This works fine - it's writing to my log file
*/
$loop = new \React\EventLoop\StreamSelectLoop();
/*
Nothing gets written to the log file
Also, when starting this up, I get a notice & warning:
PHP Notice:  Event::add(): Epoll ADD(1) on fd 9 failed.  Old events were 0; read change was 1 (add); write change was 0 (none): Operation not permitted in vendor/react/event-loop/ExtEventLoop.php on line 258
PHP Warning:  Event::add(): Failed adding event in vendor/react/event-loop/ExtEventLoop.php on line 258
My Actual script doesn't have this warning, as it pipes from a Process stdout to the Stream. It still has the same problem though (not writing to the file)
*/
$loop = new \React\EventLoop\ExtEventLoop();
$stdout = new React\Stream\Stream(fopen($stdoutLogFile, 'a'), $loop);
$stdout->on(
    'error',
    function ($error) {
        var_dump($error);
    }
);
$loop->addPeriodicTimer(
    1,
    function (React\EventLoop\Timer\TimerInterface $timer) use ($stdout) {
        $stdout->write('Starting...');
    }
);
$loop->run();

I tried the simplier demo code provided in README.md, and that didn't write either (same warnings generated).

Works fine when using 'StreamSelectLoop'.

Test System details:

• CentOS 6.x
• PHP 5.6.15 (Remi RPMs)

event phpinfo output

• Event support => enabled
• Sockets support => enabled
• Debug support => disabled
• Extra functionality support including HTTP, DNS, and RPC => enabled
• OpenSSL support => enabled
• Thread safety support => disabled
• Extension version => 1.11.1
• libevent2 headers version => 2.0.21-stable

Also tried it on a Vagrant box (scotch/box) by doing pecl install event

[clue]

Thanks for the report @giggsey, looks like this is the same problem as in #31?

I suppose it makes sense to provide a better example, several people already ran into this..

[giggsey]

Okay, here's a simple version of my real problem

<?php
require __DIR__ . '/vendor/autoload.php';

$loop = new \React\EventLoop\ExtEventLoop();

$process = new React\ChildProcess\Process('exec ping -c 10 google.com');

$stdout = new React\Stream\Stream(fopen('output.txt', 'a'), $loop);

$process->on('exit', function($exitCode, $termSignal) use ($loop) {
    echo "Process stopped\n";
    $loop->stop();
});


$loop->addTimer(0.001, function(\React\EventLoop\Timer\TimerInterface $timer) use ($process, $stdout) {
    $process->start($timer->getLoop());

    $process->stdout->pipe($stdout);
});

$loop->run();

I'm trying to pipe output from a Process to my file (using Stream), and it doesn't write to the file. It gives me the same warnings as the example above.