package src5

import (
	"log"
	"time"
)

type updateInfo struct {

	//更新或新增通道
	updatePool chan []map[string]interface{}
	//数量
	saveSize   	int

}




var sp = make(chan bool, 5)

func newUpdatePool() *updateInfo {
	update:=&updateInfo{make(chan []map[string]interface{}, 50000),200}
	return update
}


func (update *updateInfo) updateData() {
	log.Println("开始不断监听--待更新数据")
	tmpArr := make([][]map[string]interface{}, update.saveSize)
	tmpIndex := 0
	for {
		select {
		case value := <-update.updatePool:
			tmpArr[tmpIndex] = value
			tmpIndex++
			if tmpIndex == update.saveSize {
				sp <- true
				go func(dataArr [][]map[string]interface{}) {
					defer func() {
						<-sp
					}()
					mgo.UpSertBulk(extract, dataArr...)
				}(tmpArr)
				tmpArr = make([][]map[string]interface{}, update.saveSize)
				tmpIndex = 0
			}
		case <-time.After(5 * time.Second)://无反应时每x秒检测一次
			if tmpIndex > 0 {
				sp <- true
				go func(dataArr [][]map[string]interface{}) {
					defer func() {
						<-sp
					}()
					mgo.UpSertBulk(extract, dataArr...)
				}(tmpArr[:tmpIndex])
				tmpArr = make([][]map[string]interface{}, update.saveSize)
				tmpIndex = 0
			}
		}
	}
}