/**
返回对应num的任务json
**/
func Get(readyData *Entity.ReadyData, waitData *Entity.WaitData, num int) ([]byte, error) {
data := readyData.Cut(num)
jsonByte, err := Utils.EncodeJson(data)
if err != nil {
return nil, err
}
//存储数据
Store.SetData(readyData, waitData)
return jsonByte, nil
}
/**
添加数据
**/
func Add(readyData *Entity.ReadyData, waitData *Entity.WaitData, key string, value interface{}, expired uint) error {
//如果到期时间为0,表示是一个需要立即执行的任务，直接放入readyData列表中
//不为0,放入waitData，等待时间到期
if expired == 0 {
readyData.Add(key, value, expired)
} else {
waitData.Add(key, value, expired)
}
//存储数据
Store.SetData(readyData, waitData)
return nil
}
/**
减少时间
**/
func DecExpired(readyData *Entity.ReadyData, waitData *Entity.WaitData, key string, expired uint) error {
//如果任务已经在ready中，就不需要处理
if readyData.Isset(key) {
return nil
}
//在wait队列中的，只更新到期时间
if waitData.Isset(key) {
waitData.DecExpired(key, expired)
//存储数据
Store.SetData(readyData, waitData)
return nil
}
return Utils.LogErr(1001)
}
/**
删除一个任务，在两个列表里删，ready和wait
**/
func Del(readyData *Entity.ReadyData, waitData *Entity.WaitData, key string) error {
if readyData.Isset(key) {
readyData.Del(key)
//存储数据
Store.SetData(readyData, waitData)
return nil
}
if waitData.Isset(key) {
waitData.Del(key)
//存储数据
Store.SetData(readyData, waitData)
return nil
}
return Utils.LogErr(1000)
}
/**
增加任务到期时间
**/
func AddExpired(readyData *Entity.ReadyData, waitData *Entity.WaitData, key string, expired uint) error {
//增加到期时间，就从就绪队列中删除，并添加到wait队列中
if readyData.Isset(key) {
waitData.Add(key, (*readyData)[key].Value, (*readyData)[key].Expired)
readyData.Del(key)
//存储数据
Store.SetData(readyData, waitData)
return nil
}
//在wait队列中的，只更新到期时间
if waitData.Isset(key) {
waitData.AddExpired(key, expired)
//存储数据
Store.SetData(readyData, waitData)
return nil
}
return Utils.LogErr(1001)
}
/**
检查进入等待状态的任务是否到期，到期后放入readyData
**/
func CheckWaitTask(readyData *Entity.ReadyData, waitData *Entity.WaitData) {
c := time.Tick(time.Second)
dataChange := false
for _ = range c {
for key, value := range *waitData {
//已经到期的任务，放入readyData
if value.Expired <= uint(time.Now().Unix()) {
Utils.LogInfo("check do=%s\n", key)
readyData.Add(key, value.Value, value.Expired)
waitData.Del(key)
dataChange = true
}
}
if dataChange {
//存储数据
Store.SetData(readyData, waitData)
dataChange = false
}
}
}