114 lines
3.3 KiB
Go
114 lines
3.3 KiB
Go
// Copyright 2023 Woodpecker 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.
|
|
|
|
package queue
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"strings"
|
|
|
|
"go.woodpecker-ci.org/woodpecker/v2/server/model"
|
|
)
|
|
|
|
var (
|
|
// ErrCancel indicates the task was canceled.
|
|
ErrCancel = errors.New("queue: task canceled")
|
|
|
|
// ErrNotFound indicates the task was not found in the queue.
|
|
ErrNotFound = errors.New("queue: task not found")
|
|
)
|
|
|
|
// InfoT provides runtime information.
|
|
type InfoT struct {
|
|
Pending []*model.Task `json:"pending"`
|
|
WaitingOnDeps []*model.Task `json:"waiting_on_deps"`
|
|
Running []*model.Task `json:"running"`
|
|
Stats struct {
|
|
Workers int `json:"worker_count"`
|
|
Pending int `json:"pending_count"`
|
|
WaitingOnDeps int `json:"waiting_on_deps_count"`
|
|
Running int `json:"running_count"`
|
|
} `json:"stats"`
|
|
Paused bool `json:"paused"`
|
|
} // @name InfoT
|
|
|
|
func (t *InfoT) String() string {
|
|
var sb strings.Builder
|
|
|
|
for _, task := range t.Pending {
|
|
sb.WriteString("\t" + task.String())
|
|
}
|
|
|
|
for _, task := range t.Running {
|
|
sb.WriteString("\t" + task.String())
|
|
}
|
|
|
|
for _, task := range t.WaitingOnDeps {
|
|
sb.WriteString("\t" + task.String())
|
|
}
|
|
|
|
return sb.String()
|
|
}
|
|
|
|
// Filter filters tasks in the queue. If the Filter returns false,
|
|
// the Task is skipped and not returned to the subscriber.
|
|
type FilterFn func(*model.Task) bool
|
|
|
|
// Queue defines a task queue for scheduling tasks among
|
|
// a pool of workers.
|
|
type Queue interface {
|
|
// Push pushes a task to the tail of this queue.
|
|
Push(c context.Context, task *model.Task) error
|
|
|
|
// PushAtOnce pushes multiple tasks to the tail of this queue.
|
|
PushAtOnce(c context.Context, tasks []*model.Task) error
|
|
|
|
// Poll retrieves and removes a task head of this queue.
|
|
Poll(c context.Context, agentID int64, f FilterFn) (*model.Task, error)
|
|
|
|
// Extend extends the deadline for a task.
|
|
Extend(c context.Context, id string) error
|
|
|
|
// Done signals the task is complete.
|
|
Done(c context.Context, id string, exitStatus model.StatusValue) error
|
|
|
|
// Error signals the task is done with an error.
|
|
Error(c context.Context, id string, err error) error
|
|
|
|
// ErrorAtOnce signals multiple done are complete with an error.
|
|
ErrorAtOnce(c context.Context, ids []string, err error) error
|
|
|
|
// Evict removes a pending task from the queue.
|
|
Evict(c context.Context, id string) error
|
|
|
|
// EvictAtOnce removes multiple pending tasks from the queue.
|
|
EvictAtOnce(c context.Context, ids []string) error
|
|
|
|
// Wait waits until the task is complete.
|
|
Wait(c context.Context, id string) error
|
|
|
|
// Info returns internal queue information.
|
|
Info(c context.Context) InfoT
|
|
|
|
// Pause stops the queue from handing out new work items in Poll
|
|
Pause()
|
|
|
|
// Resume starts the queue again.
|
|
Resume()
|
|
|
|
// KickAgentWorkers kicks all workers for a given agent.
|
|
KickAgentWorkers(agentID int64)
|
|
}
|