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package scheduler
import (
"gitee.com/h79/goutils/common/algorithm"
"sync"
)
type Scheduler struct {
rm sync.Mutex
groups []*groupScheduled
groupMod uint32
}
var (
inst *Scheduler
schedOnce sync.Once
)
func Instance() *Scheduler {
return inst
}
func NewSchedulerCap(groupNum uint32, capacity int) *Scheduler {
return newScheduler(groupNum, capacity)
}
func NewScheduler(groupNum uint32) *Scheduler {
return newScheduler(groupNum, 5000)
}
func newScheduler(groupNum uint32, capacity int) *Scheduler {
if groupNum == 0 {
groupNum = 20
}
if groupNum > 2000 {
groupNum = 2000
}
var i uint32
var groups = make([]*groupScheduled, groupNum)
for i = 0; i < groupNum; i++ {
groups[i] = newGroupScheduled(capacity)
}
var sched = &Scheduler{
groupMod: groupNum,
groups: groups,
}
schedOnce.Do(func() {
inst = sched
})
return sched
}
func (sched *Scheduler) groupScheduled(group uint32) *groupScheduled {
sched.rm.Lock()
defer sched.rm.Unlock()
return sched.groups[group]
}
func (sched *Scheduler) groupIndex(key string) uint32 {
id := algorithm.HashCode(key)
return id % sched.groupMod
}
func (sched *Scheduler) AddTask(task Task) {
groups := sched.groupScheduled(sched.groupIndex(task.GetId()))
groups.AddTask(task)
}
func (sched *Scheduler) AddTriggerTask(task Task, trigger Trigger) error {
groups := sched.groupScheduled(sched.groupIndex(task.GetId()))
return groups.AddTriggerTask(task, trigger)
}
func (sched *Scheduler) StopTask(schedId string) {
groups := sched.groupScheduled(sched.groupIndex(schedId))
groups.StopTask(schedId)
}
func (sched *Scheduler) RemoveTask(schedId string) {
groups := sched.groupScheduled(sched.groupIndex(schedId))
groups.RemoveTask(schedId)
}
func (sched *Scheduler) HasTask(schedId string) bool {
groups := sched.groupScheduled(sched.groupIndex(schedId))
return groups.HasTask(schedId)
}
func (sched *Scheduler) Run() {
sched.rm.Lock()
defer sched.rm.Unlock()
for i := range sched.groups {
sched.groups[i].Run()
}
}
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