discordrb | Discord API for Ruby | Bot library
kandi X-RAY | discordrb Summary
kandi X-RAY | discordrb Summary
discordrb aims to meet the following design goals:.
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Top functions reviewed by kandi - BETA
- Executes a plain text from the buffer .
- Convenience method to check if the argument is not valid
- Sorts this channel .
- Connect to the websocket connection
- Creates a new stream .
- Perform a DICOM file .
- Processes a set of data structures into a hash .
- Sets the embed to the embed .
- Hash representation of a hash
- Creates a new subcommand .
discordrb Key Features
discordrb Examples and Code Snippets
Community Discussions
Trending Discussions on discordrb
QUESTION
I have a Ruby Discord (discordrb) bot written to manage D&D characters. I notice when multiple players submit the same command, at the same time, the results they each receive are not independent. The request of one player (assigning a weapon to their character) ends up being assigned to other characters who submitted the same request at the same time. I expected each request to be executed separately, in sequence. How do I prevent crossing requests?
...ANSWER
Answered 2020-Apr-13 at 16:56To avoid race conditions in multithreaded code like this, the main thing you want to look for are side effects.
Think about the bot.message(contains:"$Wset") do |event|
block as a mini program or a thread. Everything in here should be self contained - there should be no way for it to effect any other threads.
Looking through your code initially, what I'm searching for are any shared variables. These produce a race condition if they are read/written by multiple threads at the same time.
In this case, there are 2 obvious offenders - @player
and @user
. These should be refactored to local variables rather than instance variables. Define them within the block so they don't affect any other scope, for example:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install discordrb
After checking out the repo, run bin/setup to install dependencies. You can then run tests via bundle exec rspec spec. Make sure to run rubocop also: bundle exec rubocop. You can also run bin/console for an interactive prompt that will allow you to experiment. To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.
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