gearman-go/worker/example_test.go

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package worker_test
import (
"fmt"
"github.com/mikespook/gearman-go/worker"
"sync"
)
func ExampleWorker() {
// An example of worker
w := worker.New(worker.Unlimited)
defer w.Close()
// Add a gearman job server
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if err := w.AddServer(worker.Network, "127.0.0.1:4730"); err != nil {
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fmt.Println(err)
return
}
// A function for handling jobs
foobar := func(job worker.Job) ([]byte, error) {
// Do nothing here
return nil, nil
}
// Add the function to worker
if err := w.AddFunc("foobar", foobar, 0); err != nil {
fmt.Println(err)
return
}
var wg sync.WaitGroup
// A custome handler, for handling other results, eg. ECHO, dtError.
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w.JobHandler = func(job worker.Job) error {
if job.Err() == nil {
fmt.Println(string(job.Data()))
} else {
fmt.Println(job.Err())
}
wg.Done()
return nil
}
// An error handler for handling worker's internal errors.
w.ErrorHandler = func(e error) {
fmt.Println(e)
// Ignore the error or shutdown the worker
}
// Tell Gearman job server: I'm ready!
if err := w.Ready(); err != nil {
fmt.Println(err)
return
}
// Running main loop
go w.Work()
wg.Add(1)
// calling Echo
w.Echo([]byte("Hello"))
// Waiting results
wg.Wait()
// Output: Hello
}