If you're keen on working on this I can probably be roped in; I've used the go implementation a fair bit and contributed some patches, and it would be neat to have a level 3 implementation out there.
Maybe you're aware of this, but you probably want to start from the v3 branch of the Go implementation, as it fixes some problems in the RPC layer. -Ian Quoting lthibault (2020-09-23 12:21:41) > Hi Kenton, > > Wow -- thanks for the prompt reply! :) This makes sense, thanks for > clarifying. > > I'd be more than happy to get involved in making the Level 3 spec > and implementation a reality, and I have the bandwidth to dedicate to > such a project. Any chance we might be able to work together on this? > > Again, I'm quite eager to push this forward as 3-way introductions are > a killer feature for a project I'm working on. > > Let me know! > > Louis > > On Wednesday, September 23, 2020 at 12:10:15 PM UTC-4 > [email protected] wrote: > > Hi Louis, > This is somewhat embarrassing, but there is no level 3 implementation > of Cap'n Proto today, in any language. It's likely that when I get > around to implementing� it in C++, the protocol spec will change to > solve unanticipated problems. As such, trying to implement the spec > as-written in Go today might be frustrating, as it may be hard to tell > the difference between the spec having a bug vs. the spec doing > something weird intentionally, and there's no reference implementation > to test against. :/ > As for level 2, yes, we eventually realized that level 2 doesn't really > belong in the core spec at all, so you can pretty much ignore the level > 2 interfaces. Maybe I should actually� delete them... > -Kenton > > On Wed, Sep 23, 2020 at 11:02 AM lthibault <[1][email protected]> > wrote: > > Hello everyone, > > I'm currently using the [2]Go implementation of Cap'n Proto, which > features Level 1 support for the RPC protocol, and I'm discovering that > my use case would benefit greatly from Level 3 support.� Since Ross is > no longer actively maintaining the project, I'm investigating the > possibility of implementing Level 3 support myself, and possibly > volunteering to maintain the project.� � > > I've read through the Cap'n Proto spec (i.e. the .capnp files in the > github repository, especially the [3]network interface sketch), perused > conversations in this Google Group, and even tried to scavenge from the > E language website/wiki, but I'm still struggling to get a "big > picture" idea of how the 3-way introduction protocol works. > > As such, I'm you kind folks might be able to point me in the right > direction, starting with two very general questions: > > 1. How does the 3-way introduction protocol work?� Is it specified > anywhere (e.g. in an RFC?) > 2. What does the roadmap look like from Leve 1 to Level 3? > 3. My understanding from reading the source is that Level 2 can > largely be ignored.� Does Level 3 depend on level 2 in any way?� > The numbering suggests so... > > Many thanks in advance, > Louis > > -- > You received this message because you are subscribed to the Google > Groups "Cap'n Proto" group. > To unsubscribe from this group and stop receiving emails from it, > send an email to [4][email protected]. > To view this discussion on the web visit > [5]https://groups.google.com/d/msgid/capnproto/e9ad3f6d-a78c-4991-a3 > de-9a0fc071b906n%40googlegroups.com. > > -- > You received this message because you are subscribed to the Google > Groups "Cap'n Proto" group. > To unsubscribe from this group and stop receiving emails from it, send > an email to [6][email protected]. > To view this discussion on the web visit > [7]https://groups.google.com/d/msgid/capnproto/1eaff9b1-c74f-47de-9f8f- > 35eb4edc73c2n%40googlegroups.com. > > Verweise > > 1. file:///tmp/m1urjosi.html > 2. https://github.com/capnproto/go-capnproto2 > 3. > https://github.com/capnproto/capnproto/blob/cf34b937f08af618b4dc057a0f5dd47acbf4e615/c%2B%2B/src/capnp/rpc.capnp#L1375-L1476 > 4. file:///tmp/m1urjosi.html > 5. > https://groups.google.com/d/msgid/capnproto/e9ad3f6d-a78c-4991-a3de-9a0fc071b906n%40googlegroups.com?utm_medium=email&utm_source=footer > 6. mailto:[email protected] > 7. > https://groups.google.com/d/msgid/capnproto/1eaff9b1-c74f-47de-9f8f-35eb4edc73c2n%40googlegroups.com?utm_medium=email&utm_source=footer -- You received this message because you are subscribed to the Google Groups "Cap'n Proto" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/capnproto/160088036532.10239.13214745528408834412%40localhost.localdomain.
