webhookd/pkg/worker/worker.go

69 lines
1.5 KiB
Go

package worker
import (
"fmt"
"log/slog"
"github.com/ncarlier/webhookd/pkg/metric"
"github.com/ncarlier/webhookd/pkg/notification"
)
// NewWorker creates, and returns a new Worker object.
func NewWorker(id int, workerQueue chan chan Work) Worker {
// Create, and return the worker.
worker := Worker{
ID: id,
Work: make(chan Work),
WorkerQueue: workerQueue,
QuitChan: make(chan bool),
}
return worker
}
// Worker is a go routine in charge of executing a work.
type Worker struct {
ID int
Work chan Work
WorkerQueue chan chan Work
QuitChan chan bool
}
// Start is the function to starts the worker by starting a goroutine.
// That is an infinite "for-select" loop.
func (w Worker) Start() {
go func() {
for {
// Add ourselves into the worker queue.
w.WorkerQueue <- w.Work
select {
case work := <-w.Work:
// Receive a work request.
slog.Debug("hook execution request received", "worker", w.ID, "hook", work.Name(), "id", work.ID())
metric.Requests.Add(1)
err := work.Run()
if err != nil {
metric.RequestsFailed.Add(1)
work.SendMessage(fmt.Sprintf("error: %s", err.Error()))
}
// Send notification
go notification.Notify(work)
work.Close()
case <-w.QuitChan:
slog.Debug("stopping worker...", "worker", w.ID)
return
}
}
}()
}
// Stop tells the worker to stop listening for work requests.
// Note that the worker will only stop *after* it has finished its work.
func (w Worker) Stop() {
go func() {
w.QuitChan <- true
}()
}