Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:100485
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: error (pb1.pair.com: domain lvht.net from 54.254.200.128 cause and error)
Content-Type: text/plain; charset=us-ascii
Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\))
In-Reply-To: <4D64625B-AA30-4493-84F0-F523ED459D60@lvht.net>
Date: Sat, 9 Sep 2017 18:12:51 +0800
Cc: internals@lists.php.net
Content-Transfer-Encoding: quoted-printable
Message-ID: <9902BF81-AF15-456D-BA4A-E146591FA904@lvht.net>
References: <7E991FBB-C115-4AB9-B904-EBE7C0F24089@lvht.net>
 <BBCFAF73-61B3-49F3-B9C8-750457321E26@gmail.com>
 <8DB5D7F2-CB7A-4324-AB9F-D9934DD9C108@lvht.net>
 <D0D179E4-0142-4011-906C-27A677F9B79E@gmail.com>
 <4D64625B-AA30-4493-84F0-F523ED459D60@lvht.net>
To: Rowan Collins <rowan.collins@gmail.com>
Feedback-ID: bizesmtp:lvht.net:qybgforeign:qybgforeign1
Subject: Re: [PHP-DEV] add Fiber (sackful coroutine) support
From: i@lvht.net (Haitao Lv)


> On 9 Sep 2017, at 14:27, Haitao Lv <i@lvht.net> wrote:
>=20
>> I note that the examples there all implement it not as a keyword, but =
as a library function, which maybe makes more sense: whereas "yield" =
turns a function declaration into a generator declaration, =
"Fiber\yield", as we might call it, is just a function call which can =
happen anywhere and manipulates some global state.
>=20
> As the Zend Engine does not offer API to pause execution, I cannot =
implement the await without
> introducing a new keyword (just like yield).
>=20
>> The choice of "await" also feels odd: you're not awaiting the thing =
on the right-hand side of the keyword, you're sending it somewhere and =
awaiting something else.
>=20
> await is chosen because we cannot reuse the `yield` keyword. Maybe we =
can choose a more proper keyword.

Sorry for misunderstanding. The keyword await has been dropped and =
Fiber::yield implemented.
Please see https://github.com/php/php-src/pull/2733=