flamenco/internal/worker/statemachine.go
Sybren A. Stüvel 9f5e4cc0cc License: license all code under "GPL-3.0-or-later"
The add-on code was copy-pasted from other addons and used the GPL v2
license, whereas by accident the LICENSE text file had the GNU "Affero" GPL
license v3 (instead of regular GPL v3).

This is now all streamlined, and all code is licensed as "GPL v3 or later".

Furthermore, the code comments just show a SPDX License Identifier
instead of an entire license block.
2022-03-07 15:26:46 +01:00

68 lines
1.9 KiB
Go

package worker
// SPDX-License-Identifier: GPL-3.0-or-later
import (
"context"
"github.com/rs/zerolog/log"
"git.blender.org/flamenco/pkg/api"
)
func (w *Worker) setupStateMachine() {
w.stateStarters[api.WorkerStatusAsleep] = w.gotoStateAsleep
w.stateStarters[api.WorkerStatusAwake] = w.gotoStateAwake
w.stateStarters[api.WorkerStatusShutdown] = w.gotoStateShutdown
}
// Called whenever the Flamenco Manager has a change in current status for us.
func (w *Worker) changeState(ctx context.Context, newState api.WorkerStatus) {
w.stateMutex.Lock()
logger := log.With().
Str("newState", string(newState)).
Str("curState", string(w.state)).
Logger()
w.stateMutex.Unlock()
logger.Info().Msg("state change")
starter, ok := w.stateStarters[newState]
if !ok {
logger.Warn().Interface("available", w.stateStarters).Msg("no state starter for this state, going to sleep instead")
starter = w.gotoStateAsleep
}
starter(ctx)
}
// Confirm that we're now in a certain state.
//
// This ACK can be given without a request from the server, for example to support
// state changes originating from UNIX signals.
//
// The state is passed as string so that this function can run independently of
// the current w.state (for thread-safety)
func (w *Worker) ackStateChange(ctx context.Context, state api.WorkerStatus) {
defer w.doneWg.Done()
req := api.WorkerStateChangedJSONRequestBody{Status: state}
logger := log.With().Str("state", string(state)).Logger()
logger.Debug().Msg("notifying Manager of our state")
resp, err := w.client.WorkerStateChangedWithResponse(ctx, req)
if err != nil {
logger.Warn().Err(err).Msg("unable to notify Manager of status change")
return
}
// The 'default' response is for error cases.
if resp.JSONDefault != nil {
logger.Warn().
Str("httpCode", resp.HTTPResponse.Status).
Interface("error", resp.JSONDefault).
Msg("error sending status change to Manager")
return
}
}