mirror of https://github.com/q191201771/naza
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
1.4 KiB
Go
72 lines
1.4 KiB
Go
// Copyright 2019, Chef. All rights reserved.
|
|
// https://github.com/q191201771/naza
|
|
//
|
|
// Use of this source code is governed by a MIT-style license
|
|
// that can be found in the License file.
|
|
//
|
|
// Author: Chef (191201771@qq.com)
|
|
|
|
package taskpool
|
|
|
|
import (
|
|
"container/list"
|
|
"sync"
|
|
"sync/atomic"
|
|
)
|
|
|
|
type pool struct {
|
|
idleWorkerNum int32
|
|
busyWorkerNum int32
|
|
|
|
//m SpinLock
|
|
m sync.Mutex
|
|
idleWorkerList *list.List
|
|
}
|
|
|
|
func (p *pool) Go(task Task) {
|
|
var w *Worker
|
|
p.m.Lock()
|
|
e := p.idleWorkerList.Front()
|
|
if e != nil {
|
|
w = e.Value.(*Worker)
|
|
p.idleWorkerList.Remove(e)
|
|
atomic.AddInt32(&p.idleWorkerNum, -1)
|
|
atomic.AddInt32(&p.busyWorkerNum, 1)
|
|
}
|
|
p.m.Unlock()
|
|
if w == nil {
|
|
w = NewWorker(p)
|
|
w.Start()
|
|
atomic.AddInt32(&p.busyWorkerNum, 1)
|
|
}
|
|
w.Go(task)
|
|
}
|
|
|
|
func (p *pool) KillIdleWorkers() {
|
|
p.m.Lock()
|
|
n := p.idleWorkerList.Len()
|
|
var next *list.Element
|
|
for e := p.idleWorkerList.Front(); e != nil; e = next {
|
|
w := e.Value.(*Worker)
|
|
w.Stop()
|
|
next = e.Next()
|
|
p.idleWorkerList.Remove(e)
|
|
}
|
|
atomic.AddInt32(&p.idleWorkerNum, int32(-n))
|
|
p.m.Unlock()
|
|
}
|
|
|
|
func (p *pool) Status() (idleWorkerNum int, busyWorkerNum int) {
|
|
idleWorkerNum = int(atomic.LoadInt32(&p.idleWorkerNum))
|
|
busyWorkerNum = int(atomic.LoadInt32(&p.busyWorkerNum))
|
|
return
|
|
}
|
|
|
|
func (p *pool) markIdle(w *Worker) {
|
|
p.m.Lock()
|
|
atomic.AddInt32(&p.idleWorkerNum, 1)
|
|
atomic.AddInt32(&p.busyWorkerNum, -1)
|
|
p.idleWorkerList.PushBack(w)
|
|
p.m.Unlock()
|
|
}
|