Re: [go-nuts] How to handle reading channels
Thank you, you answered my question. I wanted to know whether I am right in
doing so or something else I am missing to read a channel all at once.
On Fri, Jan 24, 2020 at 8:09 PM Ian Lance Taylor wrote:
> On Fri, Jan 24, 2020 at 4:25 AM Prabhu Chawandi
> wrote:
> >
> > I have n routines launched before reaching this select statement.
> > From the routine it will fetch response from upstream server and write
> it to channel.
> >
> > When wait count reaches zero, first case will be hit. I see only one
> response being read, even if 10 other go routines have written to channel.
> Shall I use range to go over rest of the contents, like below? or any other
> way is there?
> >
> > https://play.golang.org/p/kfHauJJHFtz
> >
> > select {
> > case v := <-stop:
> > fmt.Println(v)
> > for v1 := range stop {
> >fmt.Println(v1)
> > }
> > }
>
>
> I'm sorry, I don't understand what you are asking. Thanks for
> providing a playground link. That program works as I would expect.
> Perhaps you could explain what you expect it to do that is different
> from what it actually does.
>
> A single receive from a channel, as in "v := <-stop" above, will read
> a single value from the channel. If you want to read more than one
> value from a channel, you do need to use a loop, as your program does.
>
> Ian
>
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Re: [go-nuts] How to handle reading channels
On Fri, Jan 24, 2020 at 4:25 AM Prabhu Chawandi
wrote:
>
> I have n routines launched before reaching this select statement.
> From the routine it will fetch response from upstream server and write it to
> channel.
>
> When wait count reaches zero, first case will be hit. I see only one
> response being read, even if 10 other go routines have written to channel.
> Shall I use range to go over rest of the contents, like below? or any other
> way is there?
>
> https://play.golang.org/p/kfHauJJHFtz
>
> select {
> case v := <-stop:
> fmt.Println(v)
> for v1 := range stop {
>fmt.Println(v1)
> }
> }
I'm sorry, I don't understand what you are asking. Thanks for
providing a playground link. That program works as I would expect.
Perhaps you could explain what you expect it to do that is different
from what it actually does.
A single receive from a channel, as in "v := <-stop" above, will read
a single value from the channel. If you want to read more than one
value from a channel, you do need to use a loop, as your program does.
Ian
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[go-nuts] How to handle reading channels
Hello,
I have n routines launched before reaching this select statement.
>From the routine it will fetch response from upstream server and write it
to channel.
When wait count reaches zero, first case will be hit. I see only one
response being read, even if 10 other go routines have written to channel.
Shall I use range to go over rest of the contents, like below? or any other
way is there?
https://play.golang.org/p/kfHauJJHFtz
select {
case v := <-stop:
fmt.Println(v)
for v1 := range stop {
fmt.Println(v1)
}
}
Thanks.
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