mirror of
https://github.com/woodpecker-ci/woodpecker.git
synced 2024-11-27 20:31:10 +00:00
113 lines
3 KiB
Go
113 lines
3 KiB
Go
package queue
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
)
|
|
|
|
var (
|
|
// ErrCancel indicates the task was cancelled.
|
|
ErrCancel = errors.New("queue: task cancelled")
|
|
|
|
// ErrNotFound indicates the task was not found in the queue.
|
|
ErrNotFound = errors.New("queue: task not found")
|
|
)
|
|
|
|
// Task defines a unit of work in the queue.
|
|
type Task struct {
|
|
// ID identifies this task.
|
|
ID string `json:"id,omitempty"`
|
|
|
|
// Data is the actual data in the entry.
|
|
Data []byte `json:"data"`
|
|
|
|
// Labels represents the key-value pairs the entry is lebeled with.
|
|
Labels map[string]string `json:"labels,omitempty"`
|
|
}
|
|
|
|
// InfoT provides runtime information.
|
|
type InfoT struct {
|
|
Pending []*Task `json:"pending"`
|
|
Running []*Task `json:"running"`
|
|
Stats struct {
|
|
Workers int `json:"worker_count"`
|
|
Pending int `json:"pending_count"`
|
|
Running int `json:"running_count"`
|
|
Complete int `json:"completed_count"`
|
|
} `json:"stats"`
|
|
}
|
|
|
|
// Filter filters tasks in the queue. If the Filter returns false,
|
|
// the Task is skipped and not returned to the subscriber.
|
|
type Filter func(*Task) bool
|
|
|
|
// Queue defines a task queue for scheduling tasks among
|
|
// a pool of workers.
|
|
type Queue interface {
|
|
// Push pushes an task to the tail of this queue.
|
|
Push(c context.Context, task *Task) error
|
|
|
|
// Poll retrieves and removes a task head of this queue.
|
|
Poll(c context.Context, f Filter) (*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) error
|
|
|
|
// Error signals the task is complete with errors.
|
|
Error(c context.Context, id string, err error) error
|
|
|
|
// Evict removes a pending task from the queue.
|
|
Evict(c context.Context, id 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
|
|
}
|
|
|
|
// // global instance of the queue.
|
|
// var global = New()
|
|
//
|
|
// // Set sets the global queue.
|
|
// func Set(queue Queue) {
|
|
// global = queue
|
|
// }
|
|
//
|
|
// // Push pushes an task to the tail of the global queue.
|
|
// func Push(c context.Context, task *Task) error {
|
|
// return global.Push(c, task)
|
|
// }
|
|
//
|
|
// // Poll retrieves and removes a task head of the global queue.
|
|
// func Poll(c context.Context, f Filter) (*Task, error) {
|
|
// return global.Poll(c, f)
|
|
// }
|
|
//
|
|
// // Extend extends the deadline for a task.
|
|
// func Extend(c context.Context, id string) error {
|
|
// return global.Extend(c, id)
|
|
// }
|
|
//
|
|
// // Done signals the task is complete.
|
|
// func Done(c context.Context, id string) error {
|
|
// return global.Done(c, id)
|
|
// }
|
|
//
|
|
// // Error signals the task is complete with errors.
|
|
// func Error(c context.Context, id string, err error) {
|
|
// global.Error(c, id, err)
|
|
// }
|
|
//
|
|
// // Wait waits until the task is complete.
|
|
// func Wait(c context.Context, id string) error {
|
|
// return global.Wait(c, id)
|
|
// }
|
|
//
|
|
// // Info returns internal queue information.
|
|
// func Info(c context.Context) InfoT {
|
|
// return global.Info(c)
|
|
// }
|