workgroups/example_test.go

50 lines
915 B
Go

package workgroups_test
import (
"context"
"fmt"
"log"
"runtime"
"go.xsfx.dev/workgroups"
)
func Example() {
d, ctx := workgroups.NewDispatcher(
context.Background(),
runtime.GOMAXPROCS(0), // This starts as much worker as maximal processes are allowed for go.
)
work := func(ctx context.Context) error {
// Check if context already expired.
// Return if its the case, else just go forward.
select {
case <-ctx.Done():
return fmt.Errorf("got error from context: %w", ctx.Err())
default:
}
// Some wannebe work... printing something.
fmt.Print("hello world from work")
return nil
}
// Starting up the workers.
d.Start()
// Feeding the workers some work.
d.Append(workgroups.NewJob(ctx, work))
// Closing the channel for work.
d.Close()
// Waiting to finnish everything.
if err := d.Wait(); err != nil {
log.Fatal(err)
}
// Output:
// hello world from work
}