On Mon, Jul 6, 2020 at 4:23 PM robert engels <reng...@ix.netcom.com> wrote:
>
> If you set the deadline to zero, don’t you need to use another flag to know 
> that it “should be terminated”, otherwise you can’t know if the deadline 
> exceeded was regular - I guess, unless you do a “get deadline” on the error 
> and check for 0, but that seems racy ?

You're shutting down anyhow, I'm not sure it makes much difference.
You already need some way to know that you are shutting down, such as
checking a context or whatever.

But it's not a big deal.  I was only making the point that setting the
deadline to zero will wake up the goroutine.

Ian


> On Jul 6, 2020, at 1:36 PM, Ian Lance Taylor <i...@golang.org> wrote:
>
> On Mon, Jul 6, 2020 at 10:57 AM Robert Engels <reng...@ix.netcom.com> wrote:
>
>
> You need to close the socket from another Go routine. Otherwise the Reader 
> api would need to be changed to always take a Context.
>
>
> Either close the socket or set the deadline to zero.
>
> Ian
>
>
> On Jul 6, 2020, at 12:36 PM, Brian Candler <b.cand...@pobox.com> wrote:
>
> 
> On Monday, 6 July 2020 14:53:55 UTC+1, Ian Davis wrote:
>
>
> Can you write your own ContextReader that checks ctx.Done in its Read method?
>
>
> Inside a ContextReader I can check ctx.Done *before* calling the wrapped Read 
> method - but if the context isn't done at that point and I called the wrapped 
> Read, it will be blocked at that point.
>
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