dqblm40280 2019-04-24 11:19
浏览 38
已采纳

如何从通道接收直到它在GO中具有值

A function has loop which call a go routine inside it with a channel passed into it. After this, I try receiving from channel till it has values.

The go function passes value in channel upon each call.

My channel runs infinitely.

func (m *StreamsDAO) FindOutput(input model.Input) ([]model.Output, error) {

// SOME CODE

var chanNumber int = (input.EndTime - input.StartTime)/60
outputChan := make(chan model.Output, chanNumber)
for i := input.StartTime; i < input.EndTime ;i = i+(slider*60) {

// SOME CODE

    go ForEachSlide(i, outputChan)
    for outputC := range outputChan {
        outputs = append(outputs, outputC)
    }
}
return outputs, err

}

func ForEachSlide(i int, outputChan chan model.Output) {

// SOME CODE

outputChan <- output
//  close(outputChan)

}

Its looping infinite as there in no stop for receiving from channel. If close channel is used, only single element is received from channel thats as expected, but I need all values from the channel.

  • 写回答

1条回答 默认 最新

  • douyuan4697 2019-04-26 11:00
    关注

    Finally got the answer using WaitGroup. Sharing link for complete reference: https://nathanleclaire.com/blog/2014/02/15/how-to-wait-for-all-goroutines-to-finish-executing-before-continuing/

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥15 请问有用MZmine处理 “Waters SYNAPT G2-Si QTOF质谱仪在MSE模式下采集的非靶向数据” 的分析教程吗
  • ¥50 opencv4nodejs 如何安装
  • ¥15 adb push异常 adb: error: 1409-byte write failed: Invalid argument
  • ¥15 nginx反向代理获取ip,java获取真实ip
  • ¥15 eda:门禁系统设计
  • ¥50 如何使用js去调用vscode-js-debugger的方法去调试网页
  • ¥15 376.1电表主站通信协议下发指令全被否认问题
  • ¥15 物体双站RCS和其组成阵列后的双站RCS关系验证
  • ¥15 复杂网络,变滞后传递熵,FDA
  • ¥20 csv格式数据集预处理及模型选择