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This article mainly introduces "how to realize the concurrency mechanism of Go language". In daily operation, I believe many people have doubts about how to realize the concurrency mechanism of Go language. Xiaobian consulted various materials and sorted out simple and easy operation methods. I hope to help you answer the doubts about "how to realize the concurrency mechanism of Go language"! Next, please follow the small series to learn together!

Go language support for concurrency

Programming with goroutine

Use the go keyword to create goroutines. Place the go declaration before a function to be called, and call and run the function in the same address space, so that the function executes as a separate concurrent thread. This thread is called goroutine in Go.

The usage of goroutine is as follows:

//create a goroutine and execute the method body go GetThingDone(param1, param2); //create an anonymous method and execute go func(param1, param2) {}(val1, val2) //create a goroutine and execute the code block go { //do someting...}

Because goroutines are parallel in multicore cpu environments. If the code block is executed in multiple goroutines, we achieve code parallelism.

If you need to know the execution of the program, how do you get parallel results? It needs to be done in conjunction with channel.

Concurrency Control with Channel

Channels are used to synchronize concurrently executing functions and provide some mechanism for them to communicate.

The element type, container (or buffer), and direction passed through the channel are defined by

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