- edit * -- uncomment the two runtime lines and change Tick() to Sleep() and it works as expected, printing one number every second. Leaving code as is so answer/comments make sense.
go version go1.4.2 darwin/amd64
When I run the following, I never see anything printed from go Counter()
.
package main
import (
"fmt"
"time"
//"runtime"
)
var count int64 = 0
func main() {
//runtime.GOMAXPROCS(2)
fmt.Println("main")
go Counter()
fmt.Println("after Counter()")
for {
count++
}
}
func Counter() {
fmt.Println("In Counter()")
for {
fmt.Println(count)
time.Tick(time.Second)
}
}
> go run a.go
main
after Counter()
If I uncomment the runtime stuff, I will get some strange results like the following all printed at once (not a second apart):
> go run a.go
main
after Counter()
In Counter()
10062
36380
37351
38036
38643
39285
39859
40395
40904
43114
What I expect is that go Counter()
will print whatever count is at every second while it is incremented continuously by the main thread. I'm not so much looking for different code to get the same thing done. My question is more about what is going on and where am I wrong in my expectations? The second results in particular don't make any sense, being printed all at once. They should never be printed closer than a second apart as far as I can tell, right?