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In-Reply-To: <358E7BE8-F3D3-47BC-AD44-21B0A9D4ABA5@lvht.net>
Date: Wed, 1 Nov 2017 17:45:13 +0800
Cc: PHP Internals <internals@lists.php.net>
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To: Dmitry Stogov <dmitry@zend.com>
Feedback-ID: bizesmtp:lvht.net:qybgforeign:qybgforeign1
Subject: Re: [PHP-DEV] RFC - Zend VM Pause API 
From: i@lvht.net (Haitao Lv)

To make the discussion more detailed, please allow me to offer my =
implementation of use land coroutine(Fiber).

=
https://github.com/php/php-src/compare/master...fiberphp:fiber-ext?expand=3D=
1


> On 1 Nov 2017, at 17:32, Haitao Lv <i@lvht.net> wrote:
>=20
> Suppose we have a internal Coroutine class and it has a resume() =
method.
>=20
> In order to resume the coroutine, we have to call the resume() =
function.
>=20
> As the resume function is a internal method defined in c, we need call
>=20
> zend_execute_ex(backuped_execute_data)
>=20
> to resume the zend execution.
>=20
> If we need to pause the coroutine, we set the EG(vm_interrupt) and =
interrupt_function,
> and switch the execute data and stack. The zend vm will execute the =
old online.
>=20
> However, we will never see the resume() method returned and never get =
its return value.
>=20
>> On 1 Nov 2017, at 17:14, Dmitry Stogov <dmitry@zend.com> wrote:
>>=20
>> after zend_interrupt_function() callback VM continues execution using =
EG(current_execute_data).
>> callback may modify it in any way (e.g. unwind stack, or switch to =
another co-routine or continuation).
>>=20
>> Thanks. Dmitry.
>> From: Haitao Lv <i@lvht.net>
>> Sent: Wednesday, November 1, 2017 11:54:54 AM
>> To: Dmitry Stogov
>> Cc: PHP Internals
>> Subject: Re: [PHP-DEV] RFC - Zend VM Pause API=20
>>=20
>> It seems that set EG(vm_interrupt) to 1 could not stop the vm =
execution but only execute the interrupt_function and continue the =
current execution.
>>=20
>> However, my RFC propose to stop the current execution.
>>=20
>>> On 1 Nov 2017, at 16:07, Dmitry Stogov <dmitry@zend.com> wrote:
>>>=20
>>> Hi,
>>>=20
>>> It should be possible do similar things using EG(vm_interrupt) and =
zend_interrupt_function() callback (introduced in php-7.1)
>>> ext/pcntl implements asynchronous signal handling using this.
>>>=20
>>> Thanks. Dmitry.
>>> From: Haitao Lv <i@lvht.net>
>>> Sent: Wednesday, November 1, 2017 4:19:07 AM
>>> To: PHP Internals
>>> Subject: [PHP-DEV] RFC - Zend VM Pause API=20
>>>=20
>>> Hi, internals,
>>>=20
>>> I propose to introduce a new zend vm pause api, and here is the RPF
>>>=20
>>> https://wiki.php.net/rfc/zend-vm-pause-api
>>>=20
>>> Please gave your comment.
>>>=20
>>> Thank you.
>>>=20
>>>=20
>>>=20
>>> --=20
>>> PHP Internals - PHP Runtime Development Mailing List
>>> To unsubscribe, visit: http://www.php.net/unsub.php
>>=20
>>=20
>=20
>=20
>=20
>=20
> --
> PHP Internals - PHP Runtime Development Mailing List
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>=20