In Swoole 4.4.6 the coroutine methods related to the filesystem, name resolution, and few others will be moved from Swoole\Coroutine to Swoole\Coroutine\System. The recommended way will be to access Co\System::sleep() instead of Co::sleep().
As a side note – here is a tool for dumping all Swoole classes. It is useful as the documentation is sometimes lagging.
P.S. The Coroutine\System class is available also in 4.4.5 but has most of its methods set as a dynamic which needs to be corrected to static.
P.P.S. 18.09.2019 – Swoole 4.4.6 is out and the above bug is corrected. Coroutine\System is to be used from now on.
Veselin Kenashkov
Developer at Azonmedia
Loves PHP, frameworks and old computers. Currently interested in Swoole and Vuejs.
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