acidx

8 ms·

31.
by acidx 8y ago
I like this trick that I use in C. It's limited, as it only matches string prefixes, but it works pretty well in the end: https://tia.mat.br/posts/2018/02/01/more_on_string_switch_in... It allows yo
32.
Show HN: Dali Clock as an infinite animated GIF(time.lwan.ws)
2 points by acidx 8y ago|0 comments
33.
by acidx 8y ago
No -- in Lwan, files that will be sent with sendfile() are kept open for a while; when they're first open, the same thread that opened (and this might block) will call readahead(). Files are sent in 512kB bursts. It might use mmap()+
34.
by acidx 8y ago
Thanks! I don't think there's a way to guarantee that sendfile() won't block on Linux. On FreeBSD, you can specify a "go as much as you can without blocking, and then return" flag; Linux doesn't have a flags p
35.
by acidx 8y ago
I'm not aware of it. I'm learning Rust (just bought the "The Rust Programming Language" book, FWIW), so I will check it out.
36.
by acidx 8y ago
Ah, yes, I'm very aware of libtls. The API is indeed nice, but it would require some changes in Lwan that I'd rather avoid; for instance, every socket call would need to be virtual, and it would not be possible to use something l
37.
by acidx 8y ago
Yes, Lwan's thread scheduler is pretty simple, and can be borderline useless if a thread blocks. This 2014 blog post has more details; not much in that regard has changed since then: https://tia.mat.br/posts/2014&#
38.
by acidx 8y ago
Server-sent events: https://en.wikipedia.org/wiki/Server-sent_events https://developer.mozilla.org/en-US/docs/Web/API/Server-sent...
39.
by acidx 8y ago
Curious that you compare Seastar with a Ferrari: those cars are known for an internal finish that's not compatible with their price tag... and Seastar is nothing like that. It's a seriously well engineered piece of software, and i
40.
by acidx 8y ago
There is SSE, which, although unidirectional, can be used in lieu of websockets for a chat application (receive messages/events via SSE, send via another endpoint). However, as I said before, this is an open source project; if you have
41.
by acidx 8y ago
Because I failed to move the benchmark harness from the Lwan repository to the TWFB repository. Also, I'm not really spending a lot of time on Lwan any longer; there are so many things I'd like to do, and so little time. :)
42.
by acidx 8y ago
The authors of Seastar used to use Lwan to benchmark their HTTP server implementation. When Seastar isn't using DPDK/usermode TCP stack, and drops to the POSIX API, Lwan is still faster.
43.
by acidx 8y ago
It's a known issue with TWFB. I don't know if they're planning on fixing it, but most frameworks that are not in newer rounds are not appearing in older rounds any longer.
44.
by acidx 8y ago
Yes, the small footprint was a deliberate choice, specifically for the embedded scenario. One of the things I did back in the day was to run Lwan+Lua on an Intel Galileo board, without an SD card (it has only 4MB of flash memory, which has
45.
by acidx 8y ago
Thanks! Code readability is important: not only for others (it's an open source project, and contributions are welcome!), but for myself... I have terrible memory. :) The reason struct typedefs are avoided is because I prefer to be exp
46.
by acidx 8y ago
Yes. Team. http://www.commitstrip.com/wp-content/uploads/2014/05/Strip-...
47.
by acidx 8y ago
Thank you! Although I've used a lot of tricks I've learned over the years in this project, I took a lot of inspiration from Go.
48.
by acidx 8y ago
In the works? No. Planned? Yes. I've been playing around with kTLS/BearSSL but so far I haven't made any stride. PRs, my inbox, and the IRC channel are open, though!
49.
by acidx 8y ago
Depends how you measure it. A long time ago I benchmarked it, and Lwan came out on top, performance-wise. However, performance isn't the only thing that matters in a piece of software like this. H2O is a great project; in fact, the au
50.
by acidx 8y ago
This whole project started as a joke, and I still see it as such.
51.
by acidx 8y ago
Author here. It's a pun on another similarly-named web server. It's a terrible name, and I should have searched the web before, but it's too late now.
52.
by acidx 9y ago
I'm left-handed and I have no problems when using a fountain ink pen... if I write upside down.
53.
by acidx 10y ago
Shameless plug, inspired by pledge(2), if you're a Linux rather than BSD person: how to use elementary virus writing techniques to sandbox programs under Linux using seccomp-bpf: https://tia.mat.br/posts/2016/
54.
Infect to Protect(tia.mat.br)
2 points by acidx 10y ago|0 comments
55.
by acidx 11y ago
Kind of. I've tried making the page just as phony, but that's more difficult than it sounds.
56.
by acidx 11y ago
It's possible with FFI, yes, but it's not the way it's currently done in Lwan.
57.
by acidx 11y ago
That's not the only joke in the feature list (or the whole page, to be honest.)
58.
by acidx 11y ago
It builds on FreeBSD (soon OS X), but it's not working yet.
59.
by acidx 11y ago
My web server, uses the same pattern. There's an article explaining it in details here: http://tia.mat.br/posts/2014/10/06/life_of_a_http_request.ht...
60.
by acidx 11y ago
Would a 2-lines nibbles game be better? I've just typed the implementation by Ricardo Bittencourt ( http://www.ricbit.com/mundobizarro/twoliners/ ) and it works. BGM included: https://imgur.com/

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