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Date: Wed, 7 Dec 2016 14:29:49 -0800
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Subject: Re: [PHP-DEV] Use pthread in php extension
From: smalyshev@gmail.com (Stanislav Malyshev)

Hi!

> Of course you can link your extension with any possible library.
> Particularly with pthreads, when PHP is compiled non thread safe, you
> need to be very careful using the PHP APIs. Many will be not thread
> safe in that case. Best strategy were probably not using PHP APIs in
> the thread callbacks at all.

Besides that, many libraries (e.g. ICU4C) have either non-thread-safe
parts (e.g. functions with global state) or special actions need to be
performed to use them in thread-safe manner, which PHP will not perform
when built in non-ZTS mode. So you need to be careful with third-party
libraries too.

-- 
Stas Malyshev
smalyshev@gmail.com