Tinkering with Janet language - what things could I do with it...hmm...
See https://janet-lang.org for a cool language.
A 3d ray caster in Ascii:
https://asciinema.org/a/U7sxySb1GCTrN8iOAyFxMJPVv
See code in raycaster2.janet and udp-rc-listener.janet
The terminal portion is at https://github.com/ahungry/rawterm
If you want to try it out, run:
make docker-build-raycast
make docker-run-raycast
and it will run in a small Alpine image everything you need.
Well, it turns out I was able to do some neat things.
This is a module for benchmarking memory usage and time usage of various forms.
# See some memory/timing results of slurping a file we created and waiting.
(time
(os/shell "dd if=/dev/zero of=/tmp/dummy.img bs=512 count=1024")
(map (fn [x] (slurp "/tmp/dummy.img") x) (range 10))
(os/sleep 1.3))Evals to nil and prints out:
1024+0 records in
1024+0 records out
524288 bytes (524 kB, 512 KiB) copied, 0.00287159 s, 183 MB/s
RSS: 8286208 (7.90 MB)
Form memory usage: 5140480 (4.90 MB)
CPU time taken: 0.004529 (sec)
Real time taken: 1.316339 (sec)This is a module for Clojure like futures.
(import build/futures :as f)
(defn sleep-future [n]
(f/future
(fn []
(os/sleep n)
n)))
(defn test-realize-all []
(let [futures (map sleep-future (range 5))]
(f/realize-all futures)))
# Will resolve in 4 seconds, not in 10. :)
(test-realize-all)Some udp stuff to come soon