08:27 <FromGitter> <sclee15> Can a fiber shares variables in closure?

09:41 <FromGitter> <straight-shoota> @sclee15 Yes, but you need to be aware of issues when two fibers access it simultaneously (only relevant when running multithreaded). It's better to use channels to communicate state between fibers.

10:00 <repo> or wrap access in mutex.synchronize

10:13 <FromGitter> <sclee15> @straight-shoota @repo thank you.

10:19 <FromGitter> <yxhuvud> Yes, but you probably need to synchronize access if you plan to write to the variable.

10:21 <FromGitter> <yxhuvud> (sigh, was apparently not in synch :/)

11:03 <hightower3> What's the performance of mutexes? I remember from Ruby they had a non ignorable cost

11:56 <FromGitter> <jgillich> https://play.crystal-lang.org/#/r/83h9 ⏎ First one works, second one doesn't. Is this a bug or expected behavior?

12:02 <hightower3> jgillich expected. The second is not passing a hash to a function but a block

12:02 <FromGitter> <jgillich> Ah that makes sense, thanks

12:03 <hightower3> (i.e. it is interpreted as Class.new() { block } )

14:41 <FromGitter> <sam0x17> anyone know of a good BST implementation in crystal? and/or something I can use to actively add to and remove from a generic sorted container?

15:00 <FromGitter> <sam0x17> nvm found what I need and more: https://github.com/jtomschroeder/crystalline

15:09 <FromGitter> <sam0x17> has `shards run` been added yet? so sick of doing `crystal run src/*.cr` and seeing it break when there are non-trivial library dependencies

15:10 <FromGitter> <Blacksmoke16> `shards build && ./bin/app` 😉

15:10 <FromGitter> <sam0x17> MEHH

15:10 <FromGitter> <sam0x17> lol

15:14 <FromGitter> <sam0x17> muahhahaha!!! ⏎ ⏎ ```alias shards_run='shards build || exit 1 && ./bin/*'``` [https://gitter.im/crystal-lang/crystal?at=5de135d3b065c6433c08edbf]

16:15 <FromGitter> <sam0x17> actually remove || exit 1 -- that only makes sense inside a script

17:17 <FromGitter> <j8r> Anyone familiar with `pkg-config`

17:31 <FromGitter> <j8r> https://forum.crystal-lang.org/t/static-linking-with-libxml2/1421

17:31 <FromGitter> <j8r> TL:DR: static linking is broken on Alpine edge when using XML

17:52 <tleydxdy> ye, I had that

17:53 <tleydxdy> I had to add --link-flags "-lxml2 -llzma" to the build

18:37 <Yxhuvud> sam0x17: crystalline has lots of algorithms, but the implementations are not always the fastest around.

19:40 <FromGitter> <j8r> Thanks tleydxdy

21:36 <FromGitter> <eliasjpr> Why Epoch is not working https://play.crystal-lang.org/#/r/83u9

21:38 <FromGitter> <Blacksmoke16> It's to_unix now

21:42 <FromGitter> <eliasjpr> k

21:42 <FromGitter> <eliasjpr> 😅