Go channels and deadlock

Question

I\'m trying to understand the Go language. I tried to create two goroutines that chain the flow between them using two channels:

func main() {
c1 := make(cha         


        

Answer 1

to prevent the channel from overflowing, you can ask for the channel's current capacity and dry it before writing again.

in my case, the game takes place at 60fps and the mouse moves much faster, so it is always good to check that the channel has been cleared before writing again.

notice that the previous data is lost

package main

import (
    "fmt"
)

func main() {
    // you must specify the size of the channel, 
    // even for just one element, or the code doesn't work
    ch := make( chan int, 1 )
    fmt.Printf("len: %v\n", len(ch))
    fmt.Printf("cap: %v\n\n", cap(ch))

    ch <- 1

    for i := 0; i != 100; i += 1 {
        fmt.Printf("len: %v\n", len(ch))
        fmt.Printf("cap: %v\n\n", cap(ch))

        if cap( ch ) == 1 {
            <- ch
        }

        ch <- i

        fmt.Printf("len: %v\n", len(ch))
        fmt.Printf("cap: %v\n\n", cap(ch))
    }
    fmt.Printf("end!\n")
}