25 lines
No EOL
545 B
Go
25 lines
No EOL
545 B
Go
package main
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import "fmt"
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//this func only accepts a channel for sending values.
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//it would be a compile-time error
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//to try to receive on this channel.
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func ping(pings chan<- string,msg string){
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pings <- msg
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}
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//this pong function accepts one channel for receives (pings)
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//and a second for sends(pongs)
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func pong(pings <-chan string, pongs chan<- string) {
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msg := <-pings
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pongs <- msg
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}
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func main() {
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pings := make(chan string, 1)
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pongs := make(chan string, 1)
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ping(pings, "passed message")
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pong(pings,pongs)
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fmt.Println(<-pongs)
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} |