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.
The above is the detailed content of How to deal with deadlock in golang. For more information, please follow other related articles on the PHP Chinese website!