If i create a bytes.Buffer and a gob.Encoder, each time i write to a group of connections i get "duplicate type received" and if i try and reuse the encoder, i get "corrupted data" and "unknown type". It seems i can't use both net.Conn.Write and gob.Encoder.Encode in the same connection, i will try always encoding to a buffer in both unicast and multicast like you said and report if it works.
On Wed, 23 Dec 2020, 18:49 Robert Engels, <reng...@ix.netcom.com> wrote: > You need to encode once to a byte array then send the byte array on each > connection. > > On Dec 23, 2020, at 3:45 PM, meera <lordhowen...@gmail.com> wrote: > > > I am trying to create a package for game servers using gob. The current > approach is an application level multicasting over TCP, having a gob > encoder and decoder for each player connection, and set up a goroutine to > receive and another to dispatch for each one. The code for the dispatcher > is here. But summarized, it simply receives data from a channel and encodes > it. > > The problem is that if i want to transmit a single piece of data to all > players, this piece of data is encoded again and again for each connection, > doing duplicate work. With less than 100 players this is not a problem, but > with 300+ my machine is at almost 100% usage and the profiler shows that > most of it is spent on encoding. Here's the issue on github. > > I tryied using a io.MultiWriter but gob complains of duplicate type > received, and if i try to write the raw bytes from the gob.Encoder i get > corrupted data. An option is using UDP Broadcasting but since gob expects a > stream, i'm affraid i will run into unexpected behavior when packets start > to be lost and fragmented. > > Does gob expect a single encoder and decoder to own the stream? Not > allowing two encoders on the server for one decoder on the client? > > -- > 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. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/0562184e-bbcc-44c9-adbf-37e8d5411c7cn%40googlegroups.com > <https://groups.google.com/d/msgid/golang-nuts/0562184e-bbcc-44c9-adbf-37e8d5411c7cn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAE%3DAWBXN46idvqUbCsGs%2BZbZt%2BCj4MowJ4Ozj3_U9_6-68OWDw%40mail.gmail.com.
