Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:110193
MIME-Version: 1.0
References: <CAEsg9X3PqXRUK3_=hcuv9P4h+X=0ABqEArfWdC=CbC5X37UUZg@mail.gmail.com>
In-Reply-To: <CAEsg9X3PqXRUK3_=hcuv9P4h+X=0ABqEArfWdC=CbC5X37UUZg@mail.gmail.com>
Date: Sat, 16 May 2020 21:34:45 +0200
Message-ID: <CAJmjfvXCLnVhj2cAdQm=cMYWBxyy2jnQsW+7q6YoqtM6F+9CCA@mail.gmail.com>
To: David Rodrigues <david.proweb@gmail.com>
Cc: PHP Internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary="00000000000050164f05a5c906b7"
Subject: Re: [PHP-DEV] Graceful timeout
From: jakob@givoni.dk (Jakob Givoni)

--00000000000050164f05a5c906b7
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

On Sat, 16 May 2020 at 19:42, David Rodrigues <david.proweb@gmail.com>
wrote:

> Hello!
>
> Currently we can use set_time_limit() to specify that our script will run
> by some seconds before we get "fatal error: maximum execution time of 1
> second exceeded". And we can't catch it and keep running.
>
> I believe that it is interesting to create a function that is able to lim=
it
> processing and stop when the time limit is recovered.
>
> $completeRun =3D set_time_limit_callback(function () {
>     sleep(2);
> }, 1);
>
> var_dump($completeRun);
>
> Where $completeRun will be TRUE only if callback could run until it
> returns, and FALSE if timeout.
>
> It should be very useful when we need works with external resources, like
> RESTful, where timeout can occur and we need a better way to work with
> that. Or when we have few seconds to run a process.
>
> What do you think?
>
>
> Atenciosamente,
> David Rodrigues


Hi David!

So you=E2=80=99d like to be able to set a simple timeout on any function ca=
ll.
I was able to do that with register_tick_function (first time I heard about
it!) with a function that throws an exception when the time=E2=80=99s up an=
d then
surrounding the function call in try/catch.

This could probably be turned into a userland =E2=80=9Clibrary=E2=80=9D.
I=E2=80=99m not sure how well it would work with real world code though. Fo=
r sure,
timeouts on http calls must be set on the client handler itself.

Best,
Jakob

>
>

--00000000000050164f05a5c906b7--