> On Dec 17, 2020, at 10:30 AM, Aaron Piotrowski <aa...@trowski.com> wrote: > > Hello everyone! > > I would like to introduce an RFC for adding full-stack fibers to PHP: > https://wiki.php.net/rfc/fibers > > Fibers are primarily used to implement green-threads or coroutines for > asynchronous I/O. Fibers are similar to threads, except fibers exist within a > single thread and require cooperative scheduling of the fibers by the > process. Since fibers do not require a full CPU context switch, they are > lightweight and more performant than multi-processing or threading for > awaiting I/O. > > An implementation as an extension is at https://github.com/amphp/ext-fiber > > Fibers are a complex feature. The RFC contains many examples and links to > code using fibers to help explain and demonstrate what is possible, however > I’m certain many more questions and concerns will arise. Looking forward to > feedback and discussion. > > Aaron Piotrowski > -- > PHP Internals - PHP Runtime Development Mailing List > To unsubscribe, visit: https://www.php.net/unsub.php >
Hello again everyone! Based upon feedback both on this list and elsewhere, I’ve decided to remove the FiberScheduler API from the fiber proposal. The FiberScheduler API greatly increased the complexity of the implementation and the potential for edge cases that would need to be handled and maintained. The intent of including the FiberScheduler API as part of the proposed implementation was to require usage of fibers to be interoperable between various libraries. However, this was perhaps over-reaching, and the core should only provide the most fundamental tools for fibers. The Fiber API proposed now resembles that of Ruby and other languages providing a fiber API. The revised RFC now proposes only a minimal API required for fibers – no more, no less. I believe this minimal, simplified API should resolve any concerns raised about adding the fiber API to core. I would like to open voting for this RFC around the beginning of March, so please review the minimal API and provide any feedback soon. As before, amphp v3 (https://github.com/amphp/amp/tree/v3) and trowski/react-fiber (https://github.com/trowski/react-fiber) provide real-world examples of how fibers can be used in addition to the examples in the RFC. Cheers! Aaron Piotrowski -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: https://www.php.net/unsub.php
