Hi all, I'm currently working on a feature for Node that would allow Node to apply backpressure to incoming socket connections -- specifically, letting them pool in the kernel if JS is currently busy. In the course of implementing this feature, I found that it was impossible to keep libuv from accept()'ing the socket from the Node side. Specifically, uv__server_io calls accept() before the connection_cb() [1]. In order to let the client apply backpressure / keep sockets waiting in the kernel queue, it would be necessary to move the accept() call & associated logic into uv_accept, so that the connection_cb() can trigger accept() itself. Is this a sane course of action? The only caveat I saw was that the emfile trick[2] would have to be moved / otherwise accounted for somehow.
Thanks for your feedback! Chris [1]: https://github.com/joyent/libuv/blob/06c60e9662fea752d77237857bbf2c9ea5889a00/src/unix/stream.c#L468 [2]: https://github.com/joyent/libuv/blob/06c60e9662fea752d77237857bbf2c9ea5889a00/src/unix/stream.c#L415 -- You received this message because you are subscribed to the Google Groups "libuv" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/libuv. For more options, visit https://groups.google.com/d/optout.
