133 lines
4.3 KiB
Go
133 lines
4.3 KiB
Go
/*
|
||
* Copyright 2020 The Dragonfly Authors
|
||
*
|
||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
* you may not use this file except in compliance with the License.
|
||
* You may obtain a copy of the License at
|
||
*
|
||
* http://www.apache.org/licenses/LICENSE-2.0
|
||
*
|
||
* Unless required by applicable law or agreed to in writing, software
|
||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
* See the License for the specific language governing permissions and
|
||
* limitations under the License.
|
||
*/
|
||
|
||
//go:generate mockgen -destination ./mocks/mock_cdn_service.go -package mocks d7y.io/dragonfly/v2/cdn/supervisor CDNService
|
||
|
||
package supervisor
|
||
|
||
import (
|
||
"context"
|
||
"encoding/json"
|
||
|
||
"github.com/pkg/errors"
|
||
|
||
"d7y.io/dragonfly/v2/cdn/supervisor/cdn"
|
||
"d7y.io/dragonfly/v2/cdn/supervisor/progress"
|
||
"d7y.io/dragonfly/v2/cdn/supervisor/task"
|
||
"d7y.io/dragonfly/v2/pkg/synclock"
|
||
)
|
||
|
||
var (
|
||
// errResourcesLacked represents a lack of resources, for example, the disk does not have enough space.
|
||
errResourcesLacked = errors.New("resources lacked")
|
||
)
|
||
|
||
func IsResourcesLacked(err error) bool {
|
||
return errors.Is(err, errResourcesLacked)
|
||
}
|
||
|
||
type CDNService interface {
|
||
// RegisterSeedTask registers seed task
|
||
RegisterSeedTask(ctx context.Context, clientAddr string, registerTask *task.SeedTask) (*task.SeedTask, <-chan *task.PieceInfo, error)
|
||
|
||
// GetSeedPieces returns pieces associated with taskID, which are sorted by pieceNum
|
||
GetSeedPieces(taskID string) (pieces []*task.PieceInfo, err error)
|
||
|
||
// GetSeedTask returns seed task associated with taskID
|
||
GetSeedTask(taskID string) (seedTask *task.SeedTask, err error)
|
||
}
|
||
|
||
type cdnService struct {
|
||
taskManager task.Manager
|
||
cdnManager cdn.Manager
|
||
progressManager progress.Manager
|
||
}
|
||
|
||
func NewCDNService(taskManager task.Manager, cdnManager cdn.Manager, progressManager progress.Manager) (CDNService, error) {
|
||
return &cdnService{
|
||
taskManager: taskManager,
|
||
cdnManager: cdnManager,
|
||
progressManager: progressManager,
|
||
}, nil
|
||
}
|
||
|
||
func (service *cdnService) RegisterSeedTask(ctx context.Context, clientAddr string, registerTask *task.SeedTask) (*task.SeedTask,
|
||
<-chan *task.PieceInfo, error) {
|
||
seedTask, err := service.taskManager.AddOrUpdate(registerTask)
|
||
if err != nil {
|
||
return nil, nil, err
|
||
}
|
||
if err = service.triggerCdnSyncAction(ctx, registerTask.ID); err != nil {
|
||
return seedTask, nil, err
|
||
}
|
||
pieceChan, err := service.progressManager.WatchSeedProgress(ctx, clientAddr, registerTask.ID)
|
||
return seedTask, pieceChan, err
|
||
}
|
||
|
||
// triggerCdnSyncAction trigger cdn sync action
|
||
func (service *cdnService) triggerCdnSyncAction(ctx context.Context, taskID string) error {
|
||
seedTask, err := service.taskManager.Get(taskID)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
synclock.Lock(taskID, true)
|
||
if seedTask.SourceFileLength > 0 {
|
||
if ok, err := service.cdnManager.TryFreeSpace(seedTask.SourceFileLength); err != nil {
|
||
seedTask.Log().Errorf("failed to try free space: %v", err)
|
||
} else if !ok {
|
||
synclock.UnLock(taskID, true)
|
||
return errResourcesLacked
|
||
}
|
||
}
|
||
if !seedTask.IsFrozen() {
|
||
seedTask.Log().Infof("seedTask status is %s，no need trigger again", seedTask.CdnStatus)
|
||
synclock.UnLock(seedTask.ID, true)
|
||
return nil
|
||
}
|
||
synclock.UnLock(seedTask.ID, true)
|
||
|
||
synclock.Lock(seedTask.ID, false)
|
||
defer synclock.UnLock(seedTask.ID, false)
|
||
// reconfirm
|
||
if !seedTask.IsFrozen() {
|
||
seedTask.Log().Infof("reconfirm seedTask status is not frozen, no need trigger again, current status: %s", seedTask.CdnStatus)
|
||
return nil
|
||
}
|
||
seedTask.StartTrigger()
|
||
// triggerCDN goroutine
|
||
go func() {
|
||
updateTaskInfo, err := service.cdnManager.TriggerCDN(context.Background(), seedTask)
|
||
if err != nil {
|
||
seedTask.Log().Errorf("failed to trigger cdn: %v", err)
|
||
}
|
||
jsonTaskInfo, err := json.Marshal(updateTaskInfo)
|
||
if err != nil {
|
||
seedTask.Log().Errorf("failed to json marshal updateTaskInfo: %#v: %v", updateTaskInfo, err)
|
||
return
|
||
}
|
||
seedTask.Log().Infof("trigger cdn result: %s", jsonTaskInfo)
|
||
}()
|
||
return nil
|
||
}
|
||
|
||
func (service *cdnService) GetSeedPieces(taskID string) ([]*task.PieceInfo, error) {
|
||
return service.taskManager.GetProgress(taskID)
|
||
}
|
||
|
||
func (service *cdnService) GetSeedTask(taskID string) (*task.SeedTask, error) {
|
||
return service.taskManager.Get(taskID)
|
||
}
|