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Alex Wheeler
November 16, 2017
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Golang Concurrency
Alex Wheeler
November 16, 2017
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Transcript
Golang The Future of VTS
• Yes, there will be Vim.
Background • Developed at Google • Born out of frustration
• 1. efficient compilation • 2. efficient execution • 3. ease of programming
Background • make programming fun again • feel of dynamic
language with type safety • run-time that supports GC, concurrency • lightweight flexible type system
Hello, World
Syntax
implicit typing
Concurrency
BUT FIRST… • Concurrency != Parallelism • Concurrency is about
dealing with lots of things at once. • Parallelism is about doing lots of things at once
goroutine • lightweight thread managed by the go runtime •
little memory (~2kb stack space), can spawn millions if you want • go f() starts function f in a new groutine
None
• “Don't communicate by sharing memory; share memory by communicating.”
- Golang • Communicating Sequential Processes - Tony Hoare
<- channels <- • typed structure through which you can
send/receive values using the channel operator • first class values • block by default
sending to channel
receiving from channel
Time for some code
None
None
Vim Support • https://github.com/fatih/vim-go
Further Learning • https://tour.golang.org • brew install go -- cross-compile-common
• #go-nuts on freenode • @askwheeler