🦋 Welcome to the MAIN() IRC channel of the Raku Programming Language (raku.org). Log available at irclogs.raku.org/raku/live.html . If you're a beginner, you can also check out the #raku-beginner channel!
Set by lizmat on 6 September 2022.
00:02 nort joined 01:07 hulk joined 01:08 kylese left 01:38 ecocode___ joined 02:15 hulk left, kylese joined 03:10 topnep left 03:12 topnep joined 03:50 rjbs left 03:51 rjbs joined 04:18 ecocode___ left
tonyo . 04:38
04:50 kylese left 04:51 kylese joined 04:58 Aedil joined 05:02 kjp left 05:16 topnep left 05:19 topnep joined 05:24 kjp joined 05:32 kjp_ joined, kjp left 06:13 ecocode___ joined 06:53 Sgeo left 06:54 kjp_ left 06:55 kjp joined 07:23 topnep left, topnep joined 07:33 nine left 07:34 nine joined
disbot <simon_sibl> I am a bit confused: termbin.com/w0ea 07:38
<simon_sibl> since I added a second whenever in the react block, it prints all at once, it doesnt seem to do little by little (with the sleep it should show some food receive, the bad message etc. but here it does nothing for few seconds, then print all at once 07:39
07:45 wayland joined
disbot <simon_sibl> I thought it could have multiple whenever at the same time: docs.perl6.org/type/Proc::Async 07:53
<simon_sibl> and I thought it would switch between them to get the one "ready" 07:57
<simon_sibl> this example should be simpler: termbin.com/n18h 08:02
<simon_sibl> if its async, it should switch between the two tap each time no ? 08:07
08:08 lichtkind joined 08:25 refactus left, refactus joined 08:33 ecocode___ left
disbot <simon_sibl> ok I think I get it, it needs a whenever in the supply block which behave like an await giving time to other Supply to run 08:42
09:04 Aedil left 09:27 topnep left 09:28 topnep joined
Voldenet supply itself isn't introducing any sort of async, sleep just sleeps and blocks whole thread 09:28
it just executes the code and the result isn't wrong either, just a bit delayed :> 09:30
disbot <simon_sibl> yeah I think I understand now, played a bit with supply/channels/whenever/react start creates "lightweight" thread right ? 09:43
Voldenet sort of 09:48
when working with supplies, you have two good options 09:50
Supply.interval(1) will emit the value every second, Promise.in(1) will end after a second
m: my $food-supplier = supply { my @f = <tomato potato apple fries>; whenever Supply.interval(1) { emit @f[(state $s)++]; if $s >= @f { done; }}}; react { for ^2 { whenever $food-supplier { .say } }} 09:53
camelia tomato
tomato
potato
potato
apple
apple
fries
fries
Voldenet usually if your source is well-behaved, it's very easy to add react/supply block on top of it without problems 10:02
however if your source has blocking code (e.g. if you do "prompt/sleep/read"), you're going to see it 10:05
`start` is an escape hatch that in such case, may and in a lot of cases will use os-level thread, it might get heavy if you use it for networking 10:07
10:11 disbot left, disbot8 joined 10:32 Aedil joined 10:40 cleo left 11:43 [Coke] left
disbot8 <simon_sibl> I am a bit confused here with the for loop, why it does each element twice instead of the list twice ? 11:43
<simon_sibl> oh I thought start was better than Thread.new 11:44
lizmat The Thread class is considered plumbing... you should have a real good reason for using that 11:46
Voldenet start is a bit smarter because it can reuse workers if they're free 11:54
but it's not magic that will make your programs parallel
if you use a lot of os level non-async primitives 11:55
simon_sibl: because I did `for ^2 { whenever $food-supplier { .say }` which attaches "whatever" to the react block twice
you could do ^10 for more dramatic effect and also to see how beautifully parallel it is 11:56
disbot8 <simon_sibl> ooooh okok I see, it does the loop which "attach" the whenever twice, so they both run concurrently, is that right ? 12:01
12:23 [Coke] joined 13:37 topnep left 13:38 topnep joined
Voldenet yes, they run concurrently, but only one element is processed at the time 13:50
13:54 ashfield left 14:04 nine left 14:05 nine joined 14:19 Sgeo joined 14:22 jetchisel left, jetchisel joined 15:02 apac joined 15:22 human-blip left 15:24 human-blip joined 15:41 apac left 16:30 apac joined 16:35 stanrifkin joined 16:46 nort left 16:54 stanrifkin left
[Coke] please enjoy my new dog: imgur.com/gallery/new-adoptee-quix-9OReK1h 16:55
17:11 human-blip left 17:13 human-blip joined 18:24 ecocode___ joined 19:00 Aedil left 19:50 stanrifkin joined 19:55 topnep left 19:56 topnep joined 20:41 apac left 20:56 melezhik joined
melezhik . 20:56
[Coke]: ..
)) 20:57
21:04 ilogger2 left, ilogger2 joined 21:59 topnep left 22:01 topnep joined 22:04 ecocode___ left
[Coke] __ 22:08
22:21 hulk joined 22:23 kylese left 22:30 lichtkind left 22:50 itaipu left 22:52 itaipu joined 23:06 melezhik left 23:18 wayland left 23:19 wayland joined 23:23 ecocode___ joined 23:52 itaipu left 23:55 itaipu joined

Powered by Cro and the Raku® Programming Language.

Please report any issues / comments / feature requests as an issue on App::Raku::Log.

Thank you!