quick question on alts! … the documentation says it takes one ready operation from several channels, so I’m doing something dumb in this code …. any help would be appreciated

there is some incorrect interaction between the lazyseq and the alts! … so I need advice on how to make everything async

use mapv if you don't want a lazy-seq

and I don't see how laziness would be an advantage there

godammit - you’re right

you also might want to create the timeout after creating the channels

hmmm … still takes the same length of time as the sync version 😞

so now all the time is taken in the mapv

goal is not to wait for all the ops but to schedule the ops and then read as they become ready

hmmm maybe I need on-caller? = true

oh - I just noticed "fetch-page" inside your block

if what you need is to run fetch-page multiple times, and read results as they come in, create your chans like this: (mapv #(async/thread (fetch-page %)) usually-reliable-sites) - that will return instantly, and give you a channel for the result of each fetch-page call

ah, ok that is indeed what I want!

the threads will start eagerly, the chans will be ready to read as the thread finishes

LOL that takes the execution from 7secs to 357ms 🙂

sweet!

thanks - that’s excellent

async/thread is severely underrated

no longer by me 🙂