semaphore: add worker-pool example

I've commented several times in various forums that basically every
time I've seen the “worker goroutine” pattern in Go, there has turned
out to be a cleaner implementation using semaphores.

This change adds a simple such example. (For more complex usage, I
would generally pair the semaphore with an errgroup.Group.)

Change-Id: Ibf69ee761d14ba59c1acc6a2d595b4fcf0d8f6d6
Reviewed-on: https://go-review.googlesource.com/75170
Reviewed-by: Ross Light <light@google.com>
3 files changed
tree: c8c31ae6a61f1327cdaa14f00685fb9708454466
  1. errgroup/
  2. semaphore/
  3. singleflight/
  4. syncmap/
  5. AUTHORS
  6. codereview.cfg
  7. CONTRIBUTING.md
  8. CONTRIBUTORS
  9. LICENSE
  10. PATENTS
  11. README.md
README.md

Go Sync

This repository provides Go concurrency primitives in addition to the ones provided by the language and “sync” and “sync/atomic” packages.

Download/Install

The easiest way to install is to run go get -u golang.org/x/sync. You can also manually git clone the repository to $GOPATH/src/golang.org/x/sync.

Report Issues / Send Patches

This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://golang.org/doc/contribute.html.

The main issue tracker for the sync repository is located at https://github.com/golang/go/issues. Prefix your issue with “x/sync:” in the subject line, so it is easy to find.