Created
January 21, 2021 23:53
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Golang channel sample code.
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package main | |
import ( | |
"fmt" | |
) | |
func main() { | |
ch1 := make(chan int) | |
ch2 := make(chan int) | |
go func() { | |
ch1 <- 1 | |
close(ch1) | |
fmt.Println("closed ch1") | |
}() | |
go func() { | |
fmt.Println("set ch2") | |
ch2 <- 2 | |
close(ch2) | |
fmt.Println("closed ch2") | |
}() | |
for { | |
select { | |
case v, ok := <-ch1: | |
fmt.Printf("ch1 %d %v\n", v, ok) | |
if !ok { | |
ch1 = nil | |
} | |
case v, ok := <-ch2: | |
fmt.Printf("ch2 %d\n", v) | |
if !ok { | |
ch2 = nil | |
} | |
default: | |
fmt.Println("wait") | |
} | |
if ch1 == nil && ch2 == nil { | |
fmt.Println("all channel closed") | |
break | |
} | |
} | |
fmt.Println("done") | |
} |
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