On Tue, Jan 22, 2019 at 8:33 AM <fabiuz...@gmail.com> wrote: > Hi, we have the same problem of OP. > But, in the Chris's playground there could be an error, indeed if the > consumer > runs slower of the producer the program ends in a deadlock. > > To force this behavior just add a time.Sleep() after the foor loop in main. > --> https://play.golang.org/p/A3i6TEyGQm_L > > Am I wrong? >
This is wrong because it's not using the select expression in the producer correctly. Instead of a default case with unconditional channel write, you need the channel write to be one of the cases. Like so: https://play.golang.org/p/piR5pyXeV_Y > > Thanks for the help. > > > Il giorno martedì 21 febbraio 2012 01:51:55 UTC+1, Jan ha scritto: >> >> hi all, quick question, I have a scenario where the producer should >> generate numbers indefinitely, until it is told to stop. >> >> Most of the channel producer/consumer examples assume that the producer >> closes the channels and dies cleanly (on its goroutine). >> >> When I close the channel on the reader instead, i get a panic. Any simple >> ways around it ? >> >> Pseudo-code: >> >> func producer() chan int { >> c := make(chan int) >> for { >> // produce number >> c <- some_number >> } >> } >> >> func main() { >> c := producer() >> for some_condition { >> consume(<-c) >> } >> close(c) >> ... >> } >> >> Since I'm going to call this producer zillions of times, I want to make >> sure whatever memory/resources it uses is reclaimed and cleanly exited when >> c is closed. >> >> Ideas ? >> >> many thanks in advance :) >> Jan >> >> -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
