#kqueue — Public Fediverse posts

👨‍💻💾 Oh, you need to reinvent the wheel for detecting file changes on macOS? 🙄 Congrats on discovering #kqueue, the tool that's literally older than your dev career! But hey, at least you got a blog post out of it. 🚀🎉
https://www.vegardstikbakke.com/kqueue/ #reinventthewheel #macOS #filechanges #devlife #blogpost #techhumor #HackerNews #ngated

Detecting file changes on macOS with kqueue

https://www.vegardstikbakke.com/kqueue/

#HackerNews #Detecting #file #changes #on #macOS #with #kqueue #kqueue #macOS #file #monitoring #programming #tips #developer #tools

Ah, the classic tale of reinventing the wheel 🛞! Behold, the famed network server pattern, dear reader: marvel as it twiddles its thumbs for an event, then dispatches like a waiter at a Michelin-star restaurant 🍽️. Forget progress, let's wrap "epoll" and "kqueue" in redundant libraries and call it #innovation. 🚀
https://geocar.sdf1.org/fast-servers.html #reinventingthewheel #networkserver #epoll #kqueue #softwaredevelopment #HackerNews #ngated

Ah, the classic tale of reinventing the wheel 🛞! Behold, the famed network server pattern, dear reader: marvel as it twiddles its thumbs for an event, then dispatches like a waiter at a Michelin-star restaurant 🍽️. Forget progress, let's wrap "epoll" and "kqueue" in redundant libraries and call it #innovation. 🚀
https://geocar.sdf1.org/fast-servers.html #reinventingthewheel #networkserver #epoll #kqueue #softwaredevelopment #HackerNews #ngated

Ah, the classic tale of reinventing the wheel 🛞! Behold, the famed network server pattern, dear reader: marvel as it twiddles its thumbs for an event, then dispatches like a waiter at a Michelin-star restaurant 🍽️. Forget progress, let's wrap "epoll" and "kqueue" in redundant libraries and call it #innovation. 🚀
https://geocar.sdf1.org/fast-servers.html #reinventingthewheel #networkserver #epoll #kqueue #softwaredevelopment #HackerNews #ngated

Ah, the classic tale of reinventing the wheel 🛞! Behold, the famed network server pattern, dear reader: marvel as it twiddles its thumbs for an event, then dispatches like a waiter at a Michelin-star restaurant 🍽️. Forget progress, let's wrap "epoll" and "kqueue" in redundant libraries and call it #innovation. 🚀
https://geocar.sdf1.org/fast-servers.html #reinventingthewheel #networkserver #epoll #kqueue #softwaredevelopment #HackerNews #ngated

🎉 Behold the groundbreaking revelation: wrapping #io_uring and #kqueue in a warm, fuzzy blanket to make them "user-friendly" for programmers who apparently can't handle raw I/O. 🙄 Gather 'round, fellow developers, for the riveting journey from blocking I/O to... an event loop that looks suspiciously like every other one you've seen. 🤦‍♂️
https://tigerbeetle.com/blog/2022-11-23-a-friendly-abstraction-over-iouring-and-kqueue/ #userfriendly #programming #eventloop #HackerNews #ngated

A Programmer-Friendly I/O Abstraction Over io_uring and kqueue

https://tigerbeetle.com/blog/2022-11-23-a-friendly-abstraction-over-iouring-and-kqueue/

#HackerNews #ProgrammerFriendly #IOAbstraction #io_uring #kqueue #TechBlog

A Programmer-Friendly I/O Abstraction Over io_uring and kqueue

https://tigerbeetle.com/blog/2022-11-23-a-friendly-abstraction-over-iouring-and-kqueue/

#HackerNews #ProgrammerFriendly #IOAbstraction #io_uring #kqueue #TechBlog

A Programmer-Friendly I/O Abstraction Over io_uring and kqueue

https://tigerbeetle.com/blog/2022-11-23-a-friendly-abstraction-over-iouring-and-kqueue/

#HackerNews #ProgrammerFriendly #IOAbstraction #io_uring #kqueue #TechBlog

A Programmer-Friendly I/O Abstraction Over io_uring and kqueue

https://tigerbeetle.com/blog/2022-11-23-a-friendly-abstraction-over-iouring-and-kqueue/

#HackerNews #ProgrammerFriendly #IOAbstraction #io_uring #kqueue #TechBlog

A Programmer-Friendly I/O Abstraction Over io_uring and kqueue

https://tigerbeetle.com/blog/2022-11-23-a-friendly-abstraction-over-iouring-and-kqueue/

#HackerNews #ProgrammerFriendly #IOAbstraction #io_uring #kqueue #TechBlog

@feld @david_chisnall @meka

More generally: #kqueue still has several ragged edges, compared to poll/select.

https://tty0.social/@JdeBP/114574054783681506

https://tty0.social/@JdeBP/114575142459347113

Every little helps in order to fill in all of these gaps.

#FreeBSD

🤔 Oh great, another ex-ad guru turned tech philosopher pontificating on the riveting world of I/O multiplexing. Who knew dodging pop-up ads would qualify you to decipher the cryptic nuances of `select`, `poll`, and `epoll`? 🚀 Maybe next they'll teach us how to cast spells with `kqueue`! 😂
https://nima101.github.io/io_multiplexing #exadguru #techphilosophy #I/Omultiplexing #programminghumor #kqueue #HackerNews #ngated

I/O Multiplexing (select vs. poll vs. epoll/kqueue)

https://nima101.github.io/io_multiplexing

#HackerNews #IOMultiplexing #select #poll #epoll #kqueue

I/O Multiplexing (select vs. poll vs. epoll/kqueue)

https://nima101.github.io/io_multiplexing

#HackerNews #IOMultiplexing #select #poll #epoll #kqueue

I/O Multiplexing (select vs. poll vs. epoll/kqueue)

https://nima101.github.io/io_multiplexing

#HackerNews #IOMultiplexing #select #poll #epoll #kqueue

I/O Multiplexing (select vs. poll vs. epoll/kqueue)

https://nima101.github.io/io_multiplexing

#HackerNews #IOMultiplexing #select #poll #epoll #kqueue

@meka

A quick shufti and it looks like the test program is asking for EVFILT_WRITE and the driver is checking for EVFILT_READ.

#kqueue #FreeBSD

@meka

I was wondering how far you had got with this.

#kqueue #FreeBSD

@meka

One thing not strictly select()-related:

EVFILT_PROC with NOTE_TRACK is another gotcha. It looks great at first glance.

Until one really hammers it with lots of short-lived processes in a deep tree.

Then it becomes apparent that NOTE_EXIT and NOTE_CHILD both use the data field for different purposes, but get merged, and grandchildren get lost from their parents.

https://news.ycombinator.com/item?id=23549116

#FreeBSD #kqueue

@meka

I'm currently working with an old kernel, and I don't know off the top of my head if/when this got fixed. But one of the things is that attempting to add an EVFILT_READ for a file descriptor that is /dev/null results/resulted in an ENODEV EV_ERROR event.

It's generally edge case devices that didn't get attention because a lot of the relevant software still used select() and so no-one (apart from kevent()-everywhere people like me) really hit this.

#FreeBSD #kqueue

@meka

It is always welcome to see more kevent(), if only because it lets other people share my pain, in the hope that that increases the push for kevent() to be fully completed and as good as select().

There are a number of cases I have hit over the years kevent() cannot *quite* do what select() does.

#FreeBSD #kqueue

#FreeBSD30 timeline - a few things that happened during these 30 #FreeBSD years:

#UNIX #BSD #MULTICS #1BSD #2BSD #42BSD #43BSD #386BSD #ipfw #FreeBSDCon #BSDCON #ports #jails #FreeBSDFoundation #kqueue #EuroBSDCon #CoreTeam #AsiaBSDCon #BSDCAN #pf #OpenBSD #ZFS #DTrace #VNET #Capsicum #Cheri #Poudriere #clang #llvm #subversion #OpenZFS #git

#FreeBSDDay

https://freebsdfoundation.org/freebsd/timeline/

#FreeBSD30 timeline - a few things that happened during these 30 #FreeBSD years:

#UNIX #BSD #MULTICS #1BSD #2BSD #42BSD #43BSD #386BSD #ipfw #FreeBSDCon #BSDCON #ports #jails #FreeBSDFoundation #kqueue #EuroBSDCon #CoreTeam #AsiaBSDCon #BSDCAN #pf #OpenBSD #ZFS #DTrace #VNET #Capsicum #Cheri #Poudriere #clang #llvm #subversion #OpenZFS #git

#FreeBSDDay

https://freebsdfoundation.org/freebsd/timeline/

#FreeBSD30 timeline - a few things that happened during these 30 #FreeBSD years:

#UNIX #BSD #MULTICS #1BSD #2BSD #42BSD #43BSD #386BSD #ipfw #FreeBSDCon #BSDCON #ports #jails #FreeBSDFoundation #kqueue #EuroBSDCon #CoreTeam #AsiaBSDCon #BSDCAN #pf #OpenBSD #ZFS #DTrace #VNET #Capsicum #Cheri #Poudriere #clang #llvm #subversion #OpenZFS #git

#FreeBSDDay

https://freebsdfoundation.org/freebsd/timeline/

#FreeBSD30 timeline - a few things that happened during these 30 #FreeBSD years:

#UNIX #BSD #MULTICS #1BSD #2BSD #42BSD #43BSD #386BSD #ipfw #FreeBSDCon #BSDCON #ports #jails #FreeBSDFoundation #kqueue #EuroBSDCon #CoreTeam #AsiaBSDCon #BSDCAN #pf #OpenBSD #ZFS #DTrace #VNET #Capsicum #Cheri #Poudriere #clang #llvm #subversion #OpenZFS #git

#FreeBSDDay

https://freebsdfoundation.org/freebsd/timeline/

#FreeBSD30 timeline - a few things that happened during these 30 #FreeBSD years:

#UNIX #BSD #MULTICS #1BSD #2BSD #42BSD #43BSD #386BSD #ipfw #FreeBSDCon #BSDCON #ports #jails #FreeBSDFoundation #kqueue #EuroBSDCon #CoreTeam #AsiaBSDCon #BSDCAN #pf #OpenBSD #ZFS #DTrace #VNET #Capsicum #Cheri #Poudriere #clang #llvm #subversion #OpenZFS #git

#FreeBSDDay

https://freebsdfoundation.org/freebsd/timeline/

Currently super busy with life stuff ™️

I added kqueue support to the notify crate, however this implementation currently doesn't report new files being created in a watched directory.

If there is someone out there willing to help with this issue it would be awesome. https://github.com/notify-rs/notify/issues/365

#FreeBSD #OpenBSD #NetBSD #DragonflyBSD #kqueue #rust #notify

And its merged, with the 5.0.0 release #notify for #Rust will finally support #kqueue on #BSD 🎉

Next step, after the 5.0.0 release is out, help projects using it to update to that version, so we get proper file system event goodness on BSD. #alacritty #rust-analyzer #cargo-watch #mdBook #cobalt

#FreeBSD #OpenBSD #NetBSD #dragonflybsd