Sybren A. Stüvel 04dd479248 Manager: protect task log writing with mutex
A per-task mutex is used to protect the writing of task logs, so that
mutliple goroutines can safely write to the same task log.
2022-06-09 14:44:54 +02:00

103 lines
2.9 KiB
Go

package persistence
// SPDX-License-Identifier: GPL-3.0-or-later
import (
"context"
"fmt"
"strings"
"gorm.io/gorm"
"git.blender.org/flamenco/pkg/api"
)
type Worker struct {
gorm.Model
UUID string `gorm:"type:char(36);default:'';unique;index;default:''"`
Secret string `gorm:"type:varchar(255);default:''"`
Name string `gorm:"type:varchar(64);default:''"`
Address string `gorm:"type:varchar(39);default:'';index"` // 39 = max length of IPv6 address.
Platform string `gorm:"type:varchar(16);default:''"`
Software string `gorm:"type:varchar(32);default:''"`
Status api.WorkerStatus `gorm:"type:varchar(16);default:''"`
StatusRequested api.WorkerStatus `gorm:"type:varchar(16);default:''"`
LazyStatusRequest bool `gorm:"type:smallint;default:0"`
SupportedTaskTypes string `gorm:"type:varchar(255);default:''"` // comma-separated list of task types.
}
func (w *Worker) Identifier() string {
return fmt.Sprintf("%s (%s)", w.Name, w.UUID)
}
// TaskTypes returns the worker's supported task types as list of strings.
func (w *Worker) TaskTypes() []string {
return strings.Split(w.SupportedTaskTypes, ",")
}
// StatusChangeRequest stores a requested status change on the Worker.
// This just updates the Worker instance, but doesn't store the change in the
// database.
func (w *Worker) StatusChangeRequest(status api.WorkerStatus, isLazyRequest bool) {
w.StatusRequested = status
w.LazyStatusRequest = isLazyRequest
}
// StatusChangeClear clears the requested status change of the Worker.
// This just updates the Worker instance, but doesn't store the change in the
// database.
func (w *Worker) StatusChangeClear() {
w.StatusRequested = ""
w.LazyStatusRequest = false
}
func (db *DB) CreateWorker(ctx context.Context, w *Worker) error {
if err := db.gormDB.WithContext(ctx).Create(w).Error; err != nil {
return fmt.Errorf("creating new worker: %w", err)
}
return nil
}
func (db *DB) FetchWorker(ctx context.Context, uuid string) (*Worker, error) {
w := Worker{}
tx := db.gormDB.WithContext(ctx).
First(&w, "uuid = ?", uuid)
if tx.Error != nil {
return nil, workerError(tx.Error, "fetching worker")
}
return &w, nil
}
func (db *DB) FetchWorkers(ctx context.Context) ([]*Worker, error) {
workers := make([]*Worker, 0)
tx := db.gormDB.WithContext(ctx).Model(&Worker{}).Scan(&workers)
if tx.Error != nil {
return nil, workerError(tx.Error, "fetching all workers")
}
return workers, nil
}
func (db *DB) SaveWorkerStatus(ctx context.Context, w *Worker) error {
err := db.gormDB.WithContext(ctx).
Model(w).
Select("status", "status_requested").
Updates(Worker{
Status: w.Status,
StatusRequested: w.StatusRequested,
}).Error
if err != nil {
return fmt.Errorf("saving worker: %w", err)
}
return nil
}
func (db *DB) SaveWorker(ctx context.Context, w *Worker) error {
if err := db.gormDB.WithContext(ctx).Save(w).Error; err != nil {
return fmt.Errorf("saving worker: %w", err)
}
return nil
}