68 lines
1.4 KiB
Go
68 lines
1.4 KiB
Go
package worker
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"sync"
|
|
|
|
"github.com/rs/zerolog/log"
|
|
"gitlab.com/blender/flamenco-ng-poc/pkg/api"
|
|
)
|
|
|
|
var (
|
|
errRequestAborted = errors.New("request to Manager aborted")
|
|
)
|
|
|
|
// Worker performs regular Flamenco Worker operations.
|
|
type Worker struct {
|
|
doneChan chan struct{}
|
|
doneWg *sync.WaitGroup
|
|
|
|
client api.ClientWithResponsesInterface
|
|
|
|
state api.WorkerStatus
|
|
stateStarters map[api.WorkerStatus]StateStarter // gotoStateXXX functions
|
|
stateMutex *sync.Mutex
|
|
|
|
taskRunner TaskRunner
|
|
}
|
|
|
|
type StateStarter func(context.Context)
|
|
|
|
type TaskRunner interface{}
|
|
|
|
// NewWorker constructs and returns a new Worker.
|
|
func NewWorker(
|
|
flamenco api.ClientWithResponsesInterface,
|
|
taskRunner TaskRunner,
|
|
) *Worker {
|
|
|
|
worker := &Worker{
|
|
doneChan: make(chan struct{}),
|
|
doneWg: new(sync.WaitGroup),
|
|
|
|
client: flamenco,
|
|
|
|
state: api.WorkerStatusStarting,
|
|
stateStarters: make(map[api.WorkerStatus]StateStarter),
|
|
stateMutex: new(sync.Mutex),
|
|
|
|
taskRunner: taskRunner,
|
|
}
|
|
worker.setupStateMachine()
|
|
return worker
|
|
}
|
|
|
|
// Start starts the worker by sending it to the given state.
|
|
func (w *Worker) Start(ctx context.Context, state api.WorkerStatus) {
|
|
w.changeState(ctx, state)
|
|
}
|
|
|
|
// Close gracefully shuts down the Worker.
|
|
func (w *Worker) Close() {
|
|
log.Debug().Msg("worker gracefully shutting down")
|
|
close(w.doneChan)
|
|
w.doneWg.Wait()
|
|
log.Debug().Msg("worker shut down")
|
|
}
|