How to deal with deadlock in golang

Deadlock

Deadlock means that during the execution of two or more coroutines, due to competition for resources or due to each other A blocking phenomenon caused by communication. Without external force, they will not be able to advance. (Recommended learning: go)

Common deadlock

Scenario 1: A channel is read and written in a go process

func main() {
	c:=make(chan int)
	c<-88
	<-c
}

Scenario 2: Use the channel before the go process is started

func main() {
	c:=make(chan int)
	c<-88
	go func() {
		<-c
	}()
}

Scenario 3: Channel 2 is called in channel 1, and channel 1 is called in channel 2

func main() {
	c1,c2:=make(chan int),make(chan int)
	go func() {
		for  {
			select{
				case <-c1:
					c2<-10
			}
		}
	}()
	for  {
		select{
		case <-c2:
			c1<-10
		}
	}	
}

Deadlocks occur in many situations, but they are all caused by competition for resources and data communication.

The solution to deadlock is to lock.

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