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Date: Sat, 10 Feb 2018 15:49:01 +0100
Message-ID: <CANUQDCgMgvzUDkguVKVr561jPQiPStH1UYZGcO7ACZK4ikAL+A@mail.gmail.com>
To: Haitao Lv <i@lvht.net>
Cc: Aaron Piotrowski <aaron@trowski.com>, PHP Internals <internals@lists.php.net>, 
	Dmitry Stogov <dmitry@zend.com>
Content-Type: text/plain; charset="UTF-8"
Subject: Re: [PHP-DEV] [RFC] Fiber support (again)
From: me@kelunik.com (Niklas Keller)

> Hi, all,
>
> I have updated the RFC https://wiki.php.net/rfc/fiber
>
> changes list:
>
> - introduce the `throw(Exception $exceptin)` API
> - record issues discussed

What about my suggestion of making PHP's main() automatically a Fiber,
which avoids Fiber::yield() being used outside of a Fiber, because
everything is a Fiber?

This would require another continuation mechanism, as nothing has
access to the automatically created main()-Fiber otherwise.

There would also need to be something that stops the script execution
as soon as there's no non-suspended Fiber anymore.

Regarding the internal calls: A core dump / segfault in case of
Fiber::yield() inside an internal function is unacceptable. It doesn't
give the user any clue what's wrong. Instead, an exception could be
thrown from Fiber::yield(), which just bubbles up then. Full support
for internal functions could be added at a later point then.

Regards, Niklas