GoToSocial/vendor/github.com/modern-go/concurrent
Tobi Smethurst 98263a7de6
Grand test fixup (#138)
* start fixing up tests

* fix up tests + automate with drone

* fiddle with linting

* messing about with drone.yml

* some more fiddling

* hmmm

* add cache

* add vendor directory

* verbose

* ci updates

* update some little things

* update sig
2021-08-12 21:03:24 +02:00
..
.gitignore Grand test fixup (#138) 2021-08-12 21:03:24 +02:00
.travis.yml Grand test fixup (#138) 2021-08-12 21:03:24 +02:00
executor.go Grand test fixup (#138) 2021-08-12 21:03:24 +02:00
go_above_19.go Grand test fixup (#138) 2021-08-12 21:03:24 +02:00
go_below_19.go Grand test fixup (#138) 2021-08-12 21:03:24 +02:00
LICENSE Grand test fixup (#138) 2021-08-12 21:03:24 +02:00
log.go Grand test fixup (#138) 2021-08-12 21:03:24 +02:00
README.md Grand test fixup (#138) 2021-08-12 21:03:24 +02:00
test.sh Grand test fixup (#138) 2021-08-12 21:03:24 +02:00
unbounded_executor.go Grand test fixup (#138) 2021-08-12 21:03:24 +02:00

concurrent

Sourcegraph GoDoc Build Status codecov rcard License

  • concurrent.Map: backport sync.Map for go below 1.9
  • concurrent.Executor: goroutine with explicit ownership and cancellable

concurrent.Map

because sync.Map is only available in go 1.9, we can use concurrent.Map to make code portable

m := concurrent.NewMap()
m.Store("hello", "world")
elem, found := m.Load("hello")
// elem will be "world"
// found will be true

concurrent.Executor

executor := concurrent.NewUnboundedExecutor()
executor.Go(func(ctx context.Context) {
    everyMillisecond := time.NewTicker(time.Millisecond)
    for {
        select {
        case <-ctx.Done():
            fmt.Println("goroutine exited")
            return
        case <-everyMillisecond.C:
            // do something
        }
    }
})
time.Sleep(time.Second)
executor.StopAndWaitForever()
fmt.Println("executor stopped")

attach goroutine to executor instance, so that we can

  • cancel it by stop the executor with Stop/StopAndWait/StopAndWaitForever
  • handle panic by callback: the default behavior will no longer crash your application