Golang Concurrency

Transcript

1. Golang The Future of VTS
2. • Yes, there will be Vim.
3. Background • Developed at Google • Born out of frustration • 1. efficient compilation • 2. efficient execution • 3. ease of programming
4. Background • make programming fun again • feel of dynamic language with type safety • run-time that supports GC, concurrency • lightweight flexible type system
5. Hello, World
6. Syntax
7. implicit typing
8. Concurrency
9. BUT FIRST… • Concurrency != Parallelism • Concurrency is about dealing with lots of things at once. • Parallelism is about doing lots of things at once
10. 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
12. • “Don't communicate by sharing memory; share memory by communicating.” - Golang • Communicating Sequential Processes - Tony Hoare
13. <- channels <- • typed structure through which you can send/receive values using the channel operator • first class values • block by default
14. sending to channel
15. receiving from channel
16. Time for some code
19. Vim Support • https://github.com/fatih/vim-go
20. Further Learning • https://tour.golang.org • brew install go -- cross-compile-common • #go-nuts on freenode • @askwheeler