Felix Holmgren felixyz
felixyz
/ sidekiq_unique_jobs_bug_spec.rb
Created
February 3, 2014 09:43
RSpec script attempting (and failing) to reproduce sidekiq-unique-jobs issue #27. https://github.com/mhenrixon/sidekiq-unique-jobs/issues/27
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| require 'spec_helper' | |
| require 'sidekiq' | |
| require 'sidekiq/middleware/chain' | |
| require 'sidekiq/fetch' | |
| require 'sidekiq/processor' | |
| require 'redis/namespace' | |
| redis_url = 'redis://localhost/15' | |
| client = Redis.connect(:url => redis_url) |
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| $ ./flora2/runflora | |
| % Specialising partially instantiated calls to flora_assert_directories/1 | |
| [Compiling Foreign Module /Users/felix/Documents/code/flora2/flora2bundle/flora2/cc/prolog2hilog (Prolog compiler options are ignored)] | |
| [prolog2hilog compiled, cpu time used: 0.0010 seconds] | |
| [Compiling C file /Users/felix/Documents/code/flora2/flora2bundle/flora2/cc/prolog2hilog.c using gcc] | |
| /Users/felix/Documents/code/flora2/flora2bundle/flora2/cc/prolog2hilog.c:365:9: warning: comparison of 0 > unsigned expression is always false [-Wtautological-compare] | |
| if (0 > length_diff) return FALSE; | |
| ~ ^ ~~~~~~~~~~~ | |
| 1 warning generated. | |
| gcc -dynamiclib -undefined dynamic_lookup -fPIC -o /Users/felix/Documents/code/flora2/flora2bundle/flora2/cc/prolog2hilog.dylib /Users/felix/Documents/code/flora2/flora2bundle/flora2/cc/prolog2hilog.c -Wall -fPIC -I/Users/felix/Documents/code/flora2/flora2bundle/XSB/emu -I/Users/felix/Documents/code/flora2/flora2bundle/XSB/config/i386-apple-darwin13.2.0 -O3 -fno-strict-aliasing - |
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| server { | |
| listen [::]:80; | |
| listen 80; | |
| server_name $NOSSL_SERVER_NAME; | |
| location / { | |
| proxy_pass http://$APP; | |
| proxy_http_version 1.1; | |
| proxy_set_header Upgrade \$http_upgrade; | |
| proxy_set_header Connection "upgrade"; | |
| proxy_set_header Host \$http_host; |
felixyz
/ pretty-date.rb
Created
September 17, 2012 21:23
— forked from rjz/pretty-date.rb
Pretty Date in Ruby
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| # Nothin' special here: just Resig's pretty date function ported to Ruby | |
| # http://ejohn.org/blog/javascript-pretty-date/ | |
| def pretty_date(stamp) | |
| now = Time.new | |
| diff = now - stamp | |
| day_diff = ((now - stamp) / 86400).floor | |
| day_diff == 0 && ( | |
| diff < 60 && "just now" || |
felixyz
/ crash_burn_symbols.rb
Last active
December 13, 2015 17:38
Crash caused by archiving/dearchiving symbols in RubyMotion. I can't get an interesting stack trace out of this, and NSZombiesEnabled doesn't give me anything either, but the original bug that set me hunting did result in "-[Symbol methodSignatureForSelector:]: message sent to deallocated instance" (with zombies turned on). It doesn't seem to me…
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| class AppDelegate | |
| def application(application, didFinishLaunchingWithOptions:launchOptions) | |
| @stuff = [] | |
| NSTimer.scheduledTimerWithTimeInterval(3, target: self, selector: "crash", userInfo:nil, repeats: true) | |
| NSTimer.scheduledTimerWithTimeInterval(5, target: self, selector: "burn", userInfo:nil, repeats: true) | |
| true | |
| end | |
| def crash | |
| puts "crash" |
felixyz
/ gist:5679768
Created
May 30, 2013 17:57
Use Queue to keep synchronous interface while performing work in parallel.
Queue is thread-safe, and extremely easy to use!
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| require 'thread' | |
| def provider() | |
| threads = [] | |
| queue = Queue.new | |
| 1.upto(10).each do |n| | |
| threads << Thread.new { | |
| sleep rand(0.1..2) | |
| queue << n | |
| } |
felixyz
/ celluloid_redis_bug.rb
Last active
December 18, 2015 10:59
This illustrates celluloid-redis issue #9: https://github.com/celluloid/celluloid-redis/issues/9 A repo containing the below code and branches with variations that variously provoke the same bug or not can be found here:
https://github.com/Felixyz/celluloid-redis-bug
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| require 'thread' | |
| require 'celluloid/io' | |
| require 'celluloid/redis' | |
| KEY = "magic_key" | |
| VALUE = {a: 1, b:2} | |
| class RedisActor | |
| include Celluloid::IO |
felixyz
/ gist:5788375
Created
June 15, 2013 14:44
MRI pipe limit (on OS X). This script fails on my Mac after creating 125 x 2 pipe endpoints, raising "Too many open files (Errno::EMFILE)" This is the cause of the problem illustrated here: https://gist.github.com/Felixyz/5788285
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| wakeups = [] | |
| wakers = [] | |
| puts "Creating pipes..." | |
| 200.times do |n| | |
| puts "[#{n}]" | |
| wakeup, waker = IO.pipe | |
| wakeups << wakeup | |
| wakers << waker |
felixyz
/ gist:5788285
Created
June 15, 2013 14:15
Creating and running >120 Celluloid::IO actors raises an error on MRI, even when doing NO I/O
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| # Running on OS X | |
| # JRuby + Celluloid = OK | |
| # MRI + Celluloid = OK | |
| # JRuby + Celluloid::IO = OK | |
| # MRI + Celluloid::IO = Too many open files - pipe (Errno::EMFILE) | |
| require 'celluloid/io' | |
| class SimpleActor | |
| # include Celluloid # Creating regular Celluloid actors works on MRI |
felixyz
/ item_insert_benchmark.rb
Created
September 16, 2013 15:40
Compares speed of two different methods of inserting items in an array.
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| require 'benchmark' | |
| def insert_then_sort(results, missing_items) | |
| missing_items.each do |id| | |
| results << {id: id, val: nil} | |
| end | |
| results.sort_by!{|item| item[:id] } | |
| results | |
| end |
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