[go-nuts] pattern for timing out on a channel send?

So if I'm receiving stuff from a channel, I can use select to timeout:

select {
case y := <-ch:
fmt.Println(y)
case <-time.After(200 * time.Millisecond):
fmt.Println("timed out")
}

What's the best way to time out a channel send? I'd like to do something
like:

select {
case ch <- y:
fmt.Println("sent y to ch")
case <-time.After(200 * time.Millisecond):
fmt.Println("timed out")
}

but I know select is only for receive operations.

If it times out, I want to make sure the original send never completes.

The reason I want this is I have some code where ch is buffered and
occasionally it fills up for a while and the code that sends stuff to ch
then starts blocking and causing problems. Instead of blocking for a long
time, I'd like to do something else like save the data to a file until the
channel isn't full. Perhaps just checking the length of the channel is
best and going into failsafe mode when len(ch) / cap(ch) > 0.95? But a
timeout on the send would also work...

Thanks!

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