In Go, functions can be passed as parameters through pipelines. The steps to achieve this are as follows: Define a Goroutine that receives the function. In the calling-side Goroutine, create the pipe and send the function to it.
Passing function parameters through pipes in Go
In Go, pipes are a type of inter-process communication (IPC) concurrency mechanism. Through pipes, we can send data from one goroutine to another. In addition to passing simple data types, we can also pass functions as parameters through the pipeline.
Usage
To pass a function as a parameter through the pipeline, we follow these steps:
Code example
package main import ( "fmt" "time" ) func main() { // 定义接收函数的 Goroutine go func() { for { // 从管道接收函数 fn := <-chanFunc // 执行函数 fn() } }() // 创建管道 chanFunc := make(chan func()) // 向管道发送函数 go func() { for { chanFunc <- func() { fmt.Println("Hello from function!") } time.Sleep(1 * time.Second) } }() // 保持主 Goroutine 运行 select {} }
Practical case
This code example demonstrates how to use pipes to pass functions as parameters transfer. In this particular case, we are sending as argument a function that prints a message through the pipe. By executing this code, we can see the continuous output: "Hello from function!".
Advantages
Passing a function as a parameter through a pipe provides the following advantages:
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